3-Wire Three Phase Surge Suppressors
Last Updated: April 1, 2025
Description
3-Wire 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 specifically configured for use with three-phase AC power systems, which utilize three wires to deliver power efficiently and reliably.
Working Principle
Three-phase surge suppressors operate by using components such as gas discharge tubes, resistors, and transient voltage suppressors to manage and mitigate overvoltage conditions. When a voltage spike occurs, the suppressor quickly diverts the excess current away from the protected equipment, preventing damage. The use of three separate signals in a three-phase system helps eliminate fluctuations, making these suppressors particularly useful for maintaining stable power delivery in industrial settings .
Applications
Three-phase surge suppressors are commonly used in industrial environments where large motors and heavy machinery are prevalent. For example, they are essential in manufacturing plants to protect equipment like conveyor systems, CNC machines, and industrial HVAC systems from power surges. They are also used in data centers to safeguard critical infrastructure from electrical disturbances.
Advantages over other Three Phase Surge Suppressors
One advantage of 3-wire three-phase surge suppressors is their ability to handle higher voltages and currents compared to single-phase suppressors. This makes them more suitable for industrial applications where power demands are significant. Additionally, their design allows for more efficient power distribution, reducing the risk of equipment failure due to voltage fluctuations .
Limitations
A limitation of 3-wire three-phase surge suppressors is that they may not be suitable for systems requiring a neutral wire, as they are specifically designed for three-wire configurations. This can limit their applicability in certain electrical setups where a neutral connection is necessary for proper operation.
Considerations
When selecting a 3-wire three-phase surge suppressor, it is important to consider factors such as initial costs, operating expenses, and maintenance requirements. These devices can be more expensive upfront compared to single-phase suppressors due to their complexity and capacity. However, their durability and ability to protect high-value equipment can justify the investment. Regular maintenance and periodic testing are recommended to ensure continued effectiveness, which can add to the overall operating expenses. Additionally, selecting a suppressor with the appropriate voltage rating is crucial to ensure compatibility with the existing electrical system .
from MTE Corporation
MTE RL Line /Load reactors with surge arrestors offer enhanced protection of diodes, transistors, SCRs, thyristors, etc. from dangerous voltage spikes and current surges. They can reduce overall system operating costs by reducing equipment down time and increasing system reliability and efficiency. [See More]
- Wires: 3-Wire
- Technology: Metal Oxide Varistor
- Mounting: In-line or Integrally Attached
- Voltage: 208; 240; 380; 480; 600; 415 VAC
from ASCO Power Technologies
Industrial computers, PLCs, and sensitive instrumentation are at the heart of today's automation systems. Maintaining reliability and uptime are essential to the processes running on the factory floor. Semiconductor technology has advanced over the last several decades increasing equipment's... [See More]
- Wires: 3-Wire
- Technology: Metal Oxide Varistor
- Mounting: DIN Rail
- Surge Current: 50000
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]
- Wires: 2-Wire; 3-Wire; 4-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel; Device Mount
- Surge Current: 120000
from Surge Suppression Incorporated
Advantage panel Protection Series, Nema 1, Frequency Responsive Circuitry / Voltage Response Circuitry (Sine Wave Tracking) [See More]
- Wires: 3-Wire
- Technology: Hybrid
- Mounting: Device Mount
- Operating Temp: 176
from Time Mark Corporation
Transient/Surge Absorbers (TSAs) provide system designers with a cost effective method of protecting sensitive electrical and electronic equipment from damage caused by switching transients, coil and motor backlash, and near miss lightning strikes. There are 3 models available: single-phase (1P),... [See More]
- Wires: 3-Wire
- Technology: Metal Oxide Varistor
- Mounting: Plug-in
- Maximum AC Power: 25000
from Pentair, Inc.
. COMPACT TYPE. 3.9 INCH W X 3.43 INCH D X 2.44 INCH H SIZE. SERVICE ENTRANCE, DISTRIBUTION PANEL USED ON. 0 TO 60 HZ FREQUENCY RATING. 12 AWG WIRING LEAD CONNECTION TYPE. UL (CANADA AND US), UL 1449, CE APPROVAL. INDOOR/OUTDOOR, PHOTOVOLTAIC SYSTEM APPLICATION. 120/208 V VOLTAGE RATING. 3/4 INCH... [See More]
- Wires: 3-Wire; 4-Wire
- Operating Temp: -40 to 176
- Surge Current: 40000
- 3-Phase Configuration: Delta
from Schneider Electric Surge Protection
Maintenance free, long life, metal oxide varistor design [See More]
- Wires: 3-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 40000
from Thomas & Betts Corporation
14 INCH W X 8 INCH D X 16 INCH H SIZE; SCREW TERMINAL CONNECTION TYPE; UL, CSA APPROVAL; 480 VAC VOLTAGE RATING; NEMA 12 ENCLOSURE; -40 TO 60 DEG C OPERATING TEMPERATURE; 3-PHASE DELTA 3-WIRE WITH GROUND CIRCUIT CONFIGURATION; 200 KILOAMPERE SURGE CURRENT [See More]
- Wires: 3-Wire
- AC Energy Absorption: 20000
- Surge Current: 200000
- Operating Temp: -40 to 140
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]
- Wires: 3-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel (optional feature); DIN Rail (optional feature); Pipe Nipple
- Surge Current: 50000
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]
- Wires: 2-Wire; 3-Wire; 4-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel; Device Mount
- Surge Current: 120000
from Surge Suppression Incorporated
Advantage panel Protection Series, Nema 1, Frequency Responsive Circuitry / Voltage Response Circuitry (Sine Wave Tracking) [See More]
- Wires: 3-Wire
- Technology: Hybrid
- Mounting: Device Mount
- Operating Temp: 176
from Pentair, Inc.
. MODULAR TYPE. 72 MM W X 84 MM D X 240 MM H SIZE. MAIN DISTRIBUTION PANEL USED ON. 50/60 HZ FREQUENCY RATING. 24 INCH 10 AWG FLYING LEAD WIRE (LINE), 36 INCH 10 AWG FLYING LEAD WIRE (NEUTRAL/GROUND) CONNECTION TYPE. UL 1449, CE, C-TICK APPROVAL. POWER DISTRIBUTION SYSTEM APPLICATION. 240 VAC... [See More]
- Wires: 3-Wire
- Operating Temp: -40 to 176
- Surge Current: 100000
- 3-Phase Configuration: Delta
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]
- Wires: 3-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 160000
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]
- Wires: 2-Wire; 3-Wire; 4-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel; Device Mount
- Surge Current: 120000
from Surge Suppression Incorporated
Advantage panel Protection Series, Nema 1, Frequency Responsive Circuitry / Voltage Response Circuitry (Sine Wave Tracking) [See More]
- Wires: 3-Wire
- Technology: Hybrid
- Mounting: Device Mount
- Operating Temp: 176
from Pentair, Inc.
. MODULAR TYPE. 72 MM W X 130 MM D X 240 MM H SIZE. SERVICE ENTRANCE, MAIN DISTRIBUTION PANEL USED ON. 50/60 HZ FREQUENCY RATING. 24 INCH 10 AWG FLYING LEAD WIRE (LINE), 36 INCH 10 AWG FLYING LEAD WIRE (NEUTRAL/GROUND) CONNECTION TYPE. UL 1449, CE, C-TICK APPROVAL. POWER DISTRIBUTION SYSTEM... [See More]
- Wires: 3-Wire
- Operating Temp: -40 to 176
- Surge Current: 200000
- 3-Phase Configuration: Delta
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]
- Wires: 3-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 80000 to 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]
- Wires: 2-Wire; 3-Wire; 4-Wire
- 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]
- Wires: 3-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 120000 to 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]
- Wires: 2-Wire; 3-Wire; 4-Wire
- 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]
- Wires: 3-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 80000 to 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]
- Wires: 2-Wire; 3-Wire; 4-Wire
- 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]
- Wires: 3-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 80000 to 120000
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]
- Wires: 2-Wire; 3-Wire; 4-Wire
- 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 XAS 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]
- Wires: 3-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 100000
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]
- Wires: 2-Wire; 3-Wire; 4-Wire
- 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 XBS 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]
- Wires: 3-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 1.00E6
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]
- Wires: 2-Wire; 3-Wire; 4-Wire
- 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]
- Wires: 3-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 100000
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]
- Wires: 2-Wire; 3-Wire; 4-Wire
- 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]
- Wires: 3-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 100000
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]
- Wires: 2-Wire; 3-Wire; 4-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel; DIN Rail (optional feature); Device Mount
- Surge Current: 80000
from ASCO Power Technologies
The XRS 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. 100kA – 300kA per phase ratings. Type 4 SPD for intended Use... [See More]
- Wires: 3-Wire
- Technology: Metal Oxide Varistor
- Mounting: Device Mount
- Surge Current: 100000
from ASCO Power Technologies
Our highest kA internal-mount SPD, the XWS 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]
- Wires: 3-Wire
- Technology: Metal Oxide Varistor
- Mounting: Device Mount
- Surge Current: 300000