NC/NO Dry Contacts Three Phase Surge Suppressors
Last Updated: April 1, 2025
Description
NC/NO Dry Contacts Three Phase Surge Suppressors are devices designed to protect electrical systems from voltage spikes and surges. They are specifically engineered to handle three-phase power systems, which are commonly used in industrial and commercial settings. These suppressors utilize normally closed (NC) and normally open (NO) dry contacts to manage and mitigate the effects of transient overvoltages, ensuring the safety and reliability of electrical equipment.
Working Principle
Three-phase surge suppressors work by diverting excess voltage away from sensitive components in the electrical system. They typically employ a combination of metal oxide varistors (MOV) and gas discharge tube (GDT) technologies to absorb and dissipate the energy from voltage spikes. This hybrid design allows the suppressors to effectively clamp overvoltages to acceptable levels, reducing the risk of damage to other circuit components and minimizing downtime and maintenance needs. The use of NC/NO dry contacts provides additional control and monitoring capabilities, allowing for automated responses to surge events.
Applications
Three-phase surge suppressors are widely used in various industrial and commercial applications. For example, they are essential in protecting large motors and machinery in manufacturing plants from voltage surges caused by switching transients and lightning strikes. They are also used in data centers to safeguard critical IT infrastructure and in renewable energy installations, such as wind farms and solar power plants, to protect sensitive equipment from electrical disturbances.
Advantages over other Three Phase Surge Suppressors
One of the key advantages of NC/NO dry contacts three-phase surge suppressors is their ability to provide enhanced control and monitoring capabilities. The integration of dry contacts allows for real-time status updates and automated system responses, which can be crucial in preventing equipment damage and ensuring operational continuity. Additionally, the hybrid design combining MOV and GDT technologies offers superior protection against a wide range of voltage surges compared to suppressors that rely on a single technology.
Limitations
Despite their advantages, NC/NO dry contacts three-phase surge suppressors have some limitations. They may require more complex installation and configuration compared to simpler surge protection devices. Additionally, their effectiveness can be reduced if not properly maintained or if the system is exposed to surges beyond the suppressor's rated capacity.
Considerations
When selecting NC/NO dry contacts three-phase surge suppressors, it is important to consider factors such as initial costs, operating expenses, and maintenance requirements. While these devices may have higher upfront costs due to their advanced features, they can offer long-term savings by reducing equipment downtime and maintenance needs. Durability and accuracy are also critical considerations, as these factors will impact the suppressor's ability to provide reliable protection over time. Regular maintenance and timely replacement of components are essential to ensure optimal performance and extend the lifespan of the suppressor.
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 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 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 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. 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 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 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 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 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 ASCO Power Technologies
The XRL Series utilizes uni-modular replaceable module design with Large Block 50kA Thermal Protected MOV ’s with surge current levels of 100kA, 150kA, 200kA, 250kA and 300kA per phase. FEATURES: UL 1449 Third Edition Listed. Directly Connected, Discrete Protection Elements Between All... [See More]
- Features: Integral Audible Alarm; Graphical Display; Integral Disconnect (optional feature); 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: Device Mount
- Surge Current: 150000
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 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 ASCO Power Technologies
Our highest kA internal-mount SPD, the XWL Series utilizes uni-modular replaceable module design with Large Block 50kA Thermal Protected MOV ’s with surge current levels of 300kA, 400kA, and 500kA per phase. This unit is for those “Mission Critical ” environments. FEATURES: UL 1449... [See More]
- Features: Integral Audible Alarm; Graphical Display; Integral Disconnect (optional feature); 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: Device Mount
- Surge Current: 300000
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 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: 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 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=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 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=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 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=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 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=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 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 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) 1101-494 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) A70-00-5007 from Transtector is a 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 provides effective... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 120000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) A70-00-5011 from Transtector is a brick style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 120/208/240 Vac 3-Phase Delta (Hi Leg) electrical service. This surge protector provides... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 120000
from Transtector Systems, Inc.
C surge protector (also known as SPD or lightning protector) A70-00-5012 from Transtector is a brick style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 220/380 Vac 3-Phase Wye electrical service. This surge protector provides effective protection... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 120000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) A70-00-5008 from Transtector is a brick style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 277/480 Vac 3-Phase Wye electrical service. This surge protector provides effective... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 120000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) A70-00-5010 from Transtector is a brick style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 480 Vac 3-Phase Delta electrical service. This surge protector pro-vides effective protection... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 120000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1102-014-40 from Transtector is a DIN-Rail 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 effective... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Silicon Avalanche Diode
- Mounting: DIN Rail
- Surge Current: 40000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1104-15-106 from Transtector is a DIN-Rail style SPD that utilizes state of the art MOV / GDT technology to protect critical equipment that operates on a 230/400 Vac 3-Phase Wye electrical service. This surge protector provides effective... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Silicon Avalanche Diode; Gas Tubes
- Mounting: DIN Rail
- Surge Current: 150000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1102-014-41 from Transtector is a DIN-Rail style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 240 Vac 3-Phase Delta electrical service. This surge protector provides effective... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Silicon Avalanche Diode
- Mounting: DIN Rail
- Surge Current: 40000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-525-3100 from Transtector is a DIN-Rail 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 pro-tector provides effective... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Silicon Avalanche Diode
- Mounting: DIN Rail
- Surge Current: 10000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1102-014-26 from Transtector is an IEC61643-11 Class II DIN-Rail style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 480 Vac 3-Phase Delta electrical service. This surge protector... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Silicon Avalanche Diode
- Mounting: DIN Rail
- Surge Current: 40000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) I2R-T112-4PG230 from Transtector is a DIN-Rail style SPD that utilizes state of the art MOV/GDT technology to protect critical equipment that operates on a 230 Vac 3-Phase Wye + CM electrical service. This surge protector provides... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Gas Tubes
- Mounting: DIN Rail
- Surge Current: 50000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) I2R-T112-3P230 from Transtector is a DIN-Rail style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 230 Vac 3-Phase Wye electrical service. This surge protector provides effective... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: DIN Rail
- Surge Current: 50000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) I2R-T112-4P230 from Transtector is a DIN-Rail style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 230 Vac 3-Phase Wye electrical service. This surge protector provides effective... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: DIN Rail
- Surge Current: 50000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) I2R-T125-4PG230 from Transtector is a DIN-Rail style SPD that utilizes state of the art MOV/GDT technology to protect critical equipment that operates on a 230 Vac 3-Phase Wye + CM electrical service. This surge protector provides... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Gas Tubes
- Mounting: DIN Rail
- Surge Current: 100000