NEMA Enclosure Three Phase Surge Suppressors
Last Updated: April 1, 2025
Description
NEMA Enclosure Three Phase Surge Suppressors are devices designed to protect electrical systems from voltage spikes by diverting excess voltage away from sensitive components. These suppressors are housed in NEMA-rated enclosures, which provide a standardized level of protection against environmental factors such as dust, water, and other potential contaminants.
Working Principle
Three-phase surge suppressors work by channeling excess voltage away from the electrical system during a surge event. They utilize components like metal oxide varistors (MOVs) or gas discharge tubes (GDTs) to absorb and dissipate the energy from voltage spikes. This process helps maintain the integrity of the electrical system by preventing damage to connected equipment. The use of three-phase power, which involves three alternating currents that peak at different times, allows for more stable and efficient power distribution, reducing the risk of equipment failure due to power fluctuations .
Applications
Three-phase surge suppressors are commonly used in industrial settings where large motors and heavy machinery are prevalent. For example, they are essential in manufacturing facilities to protect equipment from surges caused by utility switching or lightning strikes . They are also used in data centers to safeguard critical infrastructure from power anomalies that could lead to data loss or hardware damage.
Advantages over other Three Phase Surge Suppressors
NEMA Enclosure Three Phase Surge Suppressors offer enhanced protection against environmental factors due to their robust enclosures. This makes them particularly suitable for harsh industrial environments where dust, moisture, and other contaminants are present. Additionally, their ability to handle high levels of surge activity makes them ideal for both new installations and retrofits where performance cannot be compromised .
Limitations
One limitation of these suppressors is that they may require regular maintenance to ensure optimal performance, especially in environments with frequent surge events. Additionally, while they provide excellent protection against environmental factors, the initial cost of NEMA-rated enclosures can be higher compared to non-enclosed options.
Considerations
When selecting a NEMA Enclosure Three Phase Surge Suppressor, it is important to consider the initial cost, which can be significant due to the robust nature of the enclosures. Operating expenses may include regular maintenance and potential replacement of components like MOVs or GDTs. Durability is a key advantage, as the NEMA enclosure provides long-term protection against environmental factors. However, accuracy in surge suppression can vary based on the specific components used, and it is crucial to ensure that the suppressor is rated for the specific surge levels expected in the application environment.
from Transtector Systems, Inc.
The SP Series of AC panel surge protectors provides a full range of nominal operating voltages from 120 Vac to 600 Vac to support global AC surge protection requirements and voltages. The UL 1449 4th Edition design, uses thermally protected MOV technology to ensure robust, reliable, protection for... [See More]
- Features: NEMA Enclosure; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: DIN Rail
- Surge Current: 50000 to 100000
from CITEL SURGE PROTECTION
UL Type 1 Surge Protection Device (SPD). Real Time Diagnostics. Optional Intergrated Discount. Itotal 8/20us: 300 kA. Itotal 10/350us: 50 kA. Pluggable module for each mode. UL 1449 4th Edition [See More]
- Features: Integral Audible Alarm; NEMA Enclosure; On/Off Switch; Remote alarm contacts; Performs Self-Diagnostics; Surge Counter; On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Surge Current: 300000
- Mounting: Wall/Panel
- Operating Temp: -58 to 185
from MCG SURGE PROTECTION
Features: 120LS: I peak=120,000A/Phase (8 x 20 μs waveform). UL1449 3rd Edition. NEMA LS1-1992. Three times redundant protection paths per phase. Employs new 40kA varistors with built in high-speed thermal disconnect. Solid copper bus bar construction. Field-replaceable modules. EMI/RFI noise... [See More]
- Features: Integral Audible Alarm (optional feature); Integral Disconnect (optional feature); NEMA Enclosure; NC/NO Dry Contacts; Remote alarm contacts (optional feature); Performs Self-Diagnostics; Sine-wave Tracking; Surge Counter (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel; Device Mount
- Surge Current: 120000
from ASCO Power Technologies
The SPDee Series utilizes large Block 50kA Thermal Protected MOV ’s with surge current levels of 50kA per mode. The unit is a perfect replacement to the obsolete surge arrestors. With a small, compact design and line or load side installation flexibility, this unit can be installed anywhere in... [See More]
- Features: Integral Audible Alarm (optional feature); NEMA Enclosure; NC/NO Dry Contacts (optional feature); Remote alarm contacts (optional feature); Performs Self-Diagnostics; On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel (optional feature); DIN Rail (optional feature); Pipe Nipple
- Surge Current: 50000
from Surge Suppression Incorporated
Advantage panel Protection Series, Nema 1, Frequency Responsive Circuitry / Voltage Response Circuitry (Sine Wave Tracking) [See More]
- Features: Integral Audible Alarm (optional feature); Integral Grounding Wire; Hospital Grade (optional feature); Integral Disconnect (optional feature); NEMA Enclosure; NC/NO Dry Contacts (optional feature); Remote alarm contacts (optional feature); Sine-wave Tracking; Surge Counter (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Hybrid
- Mounting: Device Mount
- Operating Temp: 176
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-800 from Transtector is a panel style SPD that utilizes state of the art SASD technology to protect critical equipment that operates on a 277/480 Vac 3-Phase Wye electrical service. This surge protector provides effective protection... [See More]
- Features: Integral Audible Alarm; NEMA Enclosure; Surge Counter
- Technology: Silicon Avalanche Diode
- Mounting: Wall/Panel
- Surge Current: 10000
from CITEL SURGE PROTECTION
UL Type 1 Surge Protection Device (SPD). Real Time Diagnostics. Optional Intergrated Discount. Itotal 8/20us: 750 kA. Itotal 10/350us: 50 kA. Pluggable module for each mode. UL 1449 4th Edition [See More]
- Features: Integral Audible Alarm; NEMA Enclosure; On/Off Switch; Remote alarm contacts; Performs Self-Diagnostics; Surge Counter; On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Surge Current: 750000
- Mounting: Wall/Panel
- Operating Temp: -58 to 185
from MCG SURGE PROTECTION
Features: 120,000 amps per phase. UL1449 3rd Edition. Field-replaceable, high capability protection modules with lifetime replacement warranty. High performance, low inductance MicroZ ™ -installed cable. (Click here). Event counter and front panel LEDs for status indication. LED internal... [See More]
- Features: Integral Audible Alarm; Integral Disconnect; NEMA Enclosure; NC/NO Dry Contacts; Remote alarm contacts; Performs Self-Diagnostics; Surge Counter; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel; Device Mount
- Surge Current: 120000
from ASCO Power Technologies
APT is a leading North American manufacturer of Low Voltage (up to 600VAC) and Medium Voltage (1000VAC to 4160VAC) Surge Protective Devices (SPD ’s). Our world headquarters is located in the heart of lightning country, Clearwater, Florida, USA. Focusing on the Oil & Gas, Water/Wastewater... [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts (optional feature); Remote alarm contacts (optional feature); Surge Counter (optional feature); Simple visual indicators (e.g. LEDs) (optional feature)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 160000
from Surge Suppression Incorporated
Advantage panel Protection Series, Nema 1, Frequency Responsive Circuitry / Voltage Response Circuitry (Sine Wave Tracking) [See More]
- Features: Integral Audible Alarm (optional feature); Integral Grounding Wire; Hospital Grade (optional feature); Integral Disconnect (optional feature); NEMA Enclosure; NC/NO Dry Contacts (optional feature); Remote alarm contacts (optional feature); Sine-wave Tracking; Surge Counter (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Hybrid
- Mounting: Device Mount
- Operating Temp: 176
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-809-MM-1 from Transtector is a UL1449 4th Ed. panel style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 120/208 Vac 3-Phase Wye electrical service. This surge protector provides... [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 160000
from CITEL SURGE PROTECTION
The DS70US is a universal SPD for the most demanding AC Power applications. The DS70US Series protects any single or three phase voltage up to 690Vac from the effects of lightning and switching transients. These SPD are approved to the new UL1449 4th Edition (effective March. 2016) and have... [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; On-board Thermal Fusing
- Operating Temp: -40 to 185
- Mounting: DIN Rail
- 3-Phase Configuration: Delta; Wye
from MCG SURGE PROTECTION
Features: 120,000 amps per phase. UL1449 3rd Edition. Field-replaceable, high capability protection modules with lifetime replacement warranty. 8 Ft. installed cable. Front panel LED's for status indication. LED internal diagnostics for on-site maintenance. Audible fault alarm with mute switch. All... [See More]
- Features: Integral Audible Alarm (optional feature); NEMA Enclosure; NC/NO Dry Contacts; Remote alarm contacts; Performs Self-Diagnostics; Sine-wave Tracking; Surge Counter (optional feature); Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel; Device Mount
- Surge Current: 120000
from ASCO Power Technologies
Advanced Protection Technologies (APT) has been a worldwide leader in the surge suppression industry since 1985. APT ’s surge protection products have long set the standard for protection of commercial & industrial facilities. surgeassure ™ was formed to bring this same level of... [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts (optional feature); Remote alarm contacts (optional feature); Performs Self-Diagnostics; Sine-wave Tracking (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Gas Tubes (optional feature)
- Mounting: Wall/Panel
- Surge Current: 80000 to 150000
from Surge Suppression Incorporated
Advantage panel Protection Series, Nema 1, Frequency Responsive Circuitry / Voltage Response Circuitry (Sine Wave Tracking) [See More]
- Features: Integral Audible Alarm (optional feature); Integral Grounding Wire; Hospital Grade (optional feature); Integral Disconnect (optional feature); NEMA Enclosure; NC/NO Dry Contacts (optional feature); Remote alarm contacts (optional feature); Sine-wave Tracking; Surge Counter (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Hybrid
- Mounting: Device Mount
- Operating Temp: 176
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-809-M-MM-1 from Transtector is a UL1449 4th Ed. panel style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 120/208 Vac 3-Phase Wye electrical service. This surge protector provides... [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Silicon Avalanche Diode
- Mounting: Wall/Panel
- Surge Current: 160000
from CITEL SURGE PROTECTION
Characteristics,. - Surge Capacity to 50kA 8/20us per mode, 100kA 8/20us Total. - UL1449 Nominal Discharge Current (In) 20kA (All models). - UL1449 Short-circuit Current Rating (SCCR) 200kA (All models). - UL96A Master Label Compliant. - Hybrid TOV circuit provides immunity during high line... [See More]
- Features: Integral Audible Alarm; NEMA Enclosure; Simple visual indicators (e.g. LEDs)
- Operating Temp: -40 to 185
- Mounting: In-line or Integrally Attached
- 3-Phase Configuration: Delta; Wye
from MCG SURGE PROTECTION
Features: 200,000 amps per phase. UL1449 3rd Edition. Independent lab tested modules. NEMA LS 1 Tested. Redundant modular protection withstands multiple lightning strikes. Solid copper bus bar construction for minimal impedance and enhanced current sharing. High performance, low inductance. Micro-Z... [See More]
- Features: Integral Audible Alarm; NEMA Enclosure; NC/NO Dry Contacts; Remote alarm contacts; Performs Self-Diagnostics; Surge Counter; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel; Device Mount
- Surge Current: 200000
from ASCO Power Technologies
Our H Series has one, replaceable module per phase and surge current levels of 120kA and 160kA per phase. Our lowest cost replaceable module product for “budget conscience ” projects. FEATURES: UL 1449 Third Edition Listed. 120kA & 160kA per phase ratings. Type 2 SPD – All UL... [See More]
- Features: Integral Audible Alarm; Graphical Display (optional feature); NEMA Enclosure; NC/NO Dry Contacts (optional feature); Remote alarm contacts (optional feature); Performs Self-Diagnostics; Sine-wave Tracking; Surge Counter (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 120000 to 160000
from Surge Suppression Incorporated
Individual Circuit Split and Three Phase Protection Series [See More]
- Features: Integral Audible Alarm (optional feature); Continuously Live Electrical Outputs Available; Integral Grounding Wire; Hospital Grade (optional feature); NEMA Enclosure; NC/NO Dry Contacts (optional feature); Remote alarm contacts (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Hybrid
- Mounting: DIN Rail (optional feature); Device Mount; In-line or Integrally Attached
- Wires: 4-Wire
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-809-1 from Transtector is a UL1449 4th Ed. panel style SPD that utilizes state of the art SASD/MOV technology to protect critical equipment that operates on a 120/208 Vac 3-Phase Wye electrical service. This surge protector provides... [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Silicon Avalanche Diode
- Mounting: Wall/Panel
- Surge Current: 160000
from MCG SURGE PROTECTION
Features: 200,000 amps per phase, 8x20 us. Date & time of last event it handled/diverted displayed. Independent lab tested modules. UL1449 3rd Edition. NEMA LS 1. Redundant modular protection withstands multiple lightning strikes. Solid copper bus bar construction for minimal impedance and... [See More]
- Features: Integral Audible Alarm; Integral Disconnect; NEMA Enclosure; NC/NO Dry Contacts; Remote alarm contacts; Performs Self-Diagnostics; Surge Counter; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel; Device Mount
- Surge Current: 200000
from ASCO Power Technologies
Our H Series has one, replaceable module per phase and surge current levels of 80kA, 120kA and 160kA per phase. Our lowest cost replaceable module product for “budget conscience ” projects. FEATURES: UL 1449 Third Edition Listed. 80 kA, 120kA & 160kA per phase ratings. Type 2 SPD... [See More]
- Features: Integral Audible Alarm; Graphical Display (optional feature); NEMA Enclosure; NC/NO Dry Contacts (optional feature); Remote alarm contacts (optional feature); Performs Self-Diagnostics; Sine-wave Tracking; Surge Counter (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 80000 to 160000
from Surge Suppression Incorporated
Medium Voltage Panel Protection Series [See More]
- Features: Integral Grounding Wire; Integral Disconnect (optional feature); NEMA Enclosure; On-board Thermal Fusing
- Technology: Hybrid
- Mounting: Device Mount
- Voltage: 2500 Vrms L-L
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-809-M-1 from Transtector is a UL1449 4th Ed. panel style SPD that utilizes state of the art SASD/MOV technology to protect critical equipment that operates on a 120/208 Vac 3-Phase Wye electrical ser-vice. This surge protector... [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Silicon Avalanche Diode
- Mounting: Wall/Panel
- Surge Current: 160000
from MCG SURGE PROTECTION
Features: 400,000 Amps per phase 8x20 us. Date & time of last event it handled/diverted displayed. Independent lab tested modules. UL1449 3rd Edition. NEMA LS 1 Tested. High capability redundant modular protection withstands multiple lightning strikes. Solid copper bus bar construction for... [See More]
- Features: Integral Audible Alarm; Integral Disconnect; NEMA Enclosure; NC/NO Dry Contacts; Remote alarm contacts; Performs Self-Diagnostics; Surge Counter; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel; Device Mount
- Surge Current: 400000
from ASCO Power Technologies
With one, replaceable module per phase and surge current levels of 160kA and 240kA per phase, the XGA Series is a great fit for Service Entrance and Downstream applications. The XGA Features APT ’s Patented TranSafe ™ Circuitry. FEATURES: UL 1449 Third Edition Listed. 160kA & 240kA... [See More]
- Features: Integral Audible Alarm; Graphical Display (optional feature); NEMA Enclosure; NC/NO Dry Contacts (optional feature); Remote alarm contacts (optional feature); Performs Self-Diagnostics; Sine-wave Tracking; Surge Counter (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 80000 to 120000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-464 from Transtector is a UL1449 4th Ed. panel style SPD that utilizes state of the art SASD/MOV technology to protect critical equipment that operates on a 120/208 Vac 3-Phase Wye electrical service. This surge protector provides... [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Silicon Avalanche Diode
- Mounting: Wall/Panel
- Surge Current: 30000
from MCG SURGE PROTECTION
Features: I peak=120,000A/Phase (8 x 20 μs waveform). UL1449 3rd Edition Listed. Triple redundant - three fused surge paths/phase. Remote 1 Form C relay contacts with status LED. Neutral to Ground voltage monitor. Front panel protection status LEDs. Low profile design. All modes protected. [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; Remote alarm contacts; Performs Self-Diagnostics; Sine-wave Tracking; Surge Counter (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel; DIN Rail (optional feature); Device Mount
- Surge Current: 120000
from ASCO Power Technologies
With surge current levels of 100kA, 150kA, 200kA, 250kA, 300kA, 400kA and 500kA per phase, our XAL Series is the SPD that covers most current SPD needs. With one replaceable module per unit containing Large Block 50kA Thermal Protected MOV ’s, this units low cost, reliability, flexibility and... [See More]
- Features: Integral Audible Alarm; Graphical Display (optional feature); Integral Disconnect (optional feature); NEMA Enclosure; NC/NO Dry Contacts; Remote alarm contacts; Performs Self-Diagnostics; Sine-wave Tracking; Surge Counter (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 150000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-719 from Transtector is a UL 94-5V panel style SPD that utilizes state of the art SASD technology to protect critical equipment that operates on a 127/220 Vac 3-Phase Wye electrical service. This surge pro-tector provides effective... [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Silicon Avalanche Diode
- Mounting: Wall/Panel
- Surge Current: 10000
from MCG SURGE PROTECTION
Features: I peak=160,000A/Phase (8 x 20 μs waveform). UL1449 3rd Edition Listed. Triple redundant - three fused surge paths/phase. Remote 1 Form C relay contacts with status LED. Neutral to Ground voltage monitor. Front panel protection status LEDs. Low profile design. All modes protected. [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; Remote alarm contacts; Performs Self-Diagnostics; Sine-wave Tracking; Surge Counter (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel; DIN Rail (optional feature); Device Mount
- Surge Current: 160000
from ASCO Power Technologies
Our largest, highest kA SPD, the XBL Series utilizes two separate, dual redundant replaceable modules that work in parallel. With Large Block 50kA Thermal Protected MOV ’s with surge current levels of 600kA, 800kA and 1000kA per phase, this unit is for those “Mission Critical ”... [See More]
- Features: Integral Audible Alarm; Graphical Display (optional feature); Integral Disconnect (optional feature); NEMA Enclosure; NC/NO Dry Contacts; Remote alarm contacts; Performs Self-Diagnostics; Sine-wave Tracking; Surge Counter (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 600000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-439-43 from Transtector is a UL1449 4th Ed. panel style SPD that utilizes state of the art SASD technology to protect critical equipment that operates on a 120/208 Vac 3-Phase Wye electrical service. This surge protector provides... [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Silicon Avalanche Diode
- Mounting: Wall/Panel
- Surge Current: 10000
from MCG SURGE PROTECTION
Features: I peak=250,000A/Phase (8 x 20 μs waveform). UL1449 3rd Edition Listed. Triple redundant - three fused surge paths/phase. Remote 1 Form C relay contacts with status LED. Neutral to Ground voltage monitor. Front panel protection status LEDs. Low profile design. All modes protected. [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; Remote alarm contacts; Performs Self-Diagnostics; Sine-wave Tracking; Surge Counter; On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel; DIN Rail (optional feature); Device Mount
- Surge Current: 250000
from ASCO Power Technologies
The XCS Series utilizes large Block 50kA Thermal Protected MOV ’s with surge current levels of 100kA per phase. With a compact economical design and line or load side installation flexibility, this unit can be installed anywhere in any electrical distribution system. FEATURES: UL 1449 Third... [See More]
- Features: Integral Audible Alarm (optional feature); NEMA Enclosure; NC/NO Dry Contacts (optional feature); Remote alarm contacts (optional feature); Performs Self-Diagnostics; On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 100000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-440-44 from Transtector is a UL 94-5V panel style SPD that utilizes state of the art SASD technology to protect critical equipment that operates on a 240 Vac 3-Phase Delta electrical service. This surge pro-tector provides effective... [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Silicon Avalanche Diode
- Mounting: Wall/Panel
- Surge Current: 10000
from MCG SURGE PROTECTION
Features: I peak=40,000A/Phase (8 x 20 μs waveform). UL1449 3rd Edition Listed. Remote 1 Form C relay contacts with status LED. Neutral to Ground voltage monitor. Front panel protection status LEDs. Low profile design. All modes protected. Filtering standard. Thermally protected MOVs. 20 Year... [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; Remote alarm contacts; Performs Self-Diagnostics; Sine-wave Tracking; Surge Counter (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel; DIN Rail (optional feature); Device Mount
- Surge Current: 40000
from ASCO Power Technologies
The XDS Series utilizes large Block 50kA Thermal Protected MOV ’s with surge current levels of 100kA, 150kA and 200kA per phase. With line or load side installation flexibility, this unit is a great fit from the service entrance all the way down to each distribution and/or branch panel. [See More]
- Features: Integral Audible Alarm (optional feature); NEMA Enclosure; NC/NO Dry Contacts (optional feature); Remote alarm contacts (optional feature); Performs Self-Diagnostics; Sine-wave Tracking; On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 100000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-451 from Transtector is a UL 94-5V panel style SPD that utilizes state of the art SASD/MOV technology to protect critical equipment that operates on a 240 Vac 3-Phase Delta electrical service. This surge pro-tector provides effective... [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Silicon Avalanche Diode
- Mounting: Wall/Panel
- Surge Current: 30000
from MCG SURGE PROTECTION
Features: I peak=80,000A/Phase (8 x 20 μs waveform). UL1449 3rd Edition Listed. Remote 1 Form C relay contacts with status LED. Neutral to Ground voltage monitor. Front panel protection status LEDs. Low profile design. All modes protected. Filtering standard. Thermally protected MOVs. 20 Year... [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; Remote alarm contacts; Performs Self-Diagnostics; Sine-wave Tracking; Surge Counter (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel; DIN Rail (optional feature); Device Mount
- Surge Current: 80000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-446-43 from Transtector is a UL 94-5V panel style SPD that utilizes state of the art SASD technology to protect critical equipment that operates on a 240/415 Vac 3-Phase Wye electrical service. This surge protector provides effective... [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Silicon Avalanche Diode
- Mounting: Wall/Panel
- Surge Current: 10000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-494 from Transtector is a UL 94-5V panel style SPD that utilizes state of the art SASD/MOV technology to protect critical equipment that operates on a 240/415 Vac 3-Phase Wye electrical service. This surge protector provides... [See More]
- Features: NEMA Enclosure; NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Silicon Avalanche Diode
- Mounting: Wall/Panel
- Surge Current: 30000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) SP50-1203Y from Transtector is a UL1449 4th Ed. Type 1/Type 2 brick style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 120/208 Vac 3-Phase Wye electrical service. This surge protector... [See More]
- Features: NEMA Enclosure; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 50000