2-Wire Three Phase Surge Suppressors
Last Updated: April 1, 2025
Description
2-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 three-phase power systems, which use three alternating currents that peak at different times to provide a more stable power supply compared to single-phase systems.
Working Principle
The working principle of 2-Wire Three Phase Surge Suppressors involves detecting and diverting excess voltage away from the electrical system. When a surge occurs, the suppressor channels the extra voltage into a grounding wire, preventing it from flowing through and potentially damaging electronic devices. This is particularly useful in three-phase systems, which are used to power large motors and industrial equipment, as they help maintain system stability and prevent equipment failure due to voltage spikes.
Applications
2-Wire 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 plants to protect equipment like conveyor systems and robotic arms from power surges. They are also used in data centers to safeguard servers and networking equipment, ensuring continuous operation and data integrity.
Advantages over other Three Phase Surge Suppressors
One advantage of 2-Wire Three Phase Surge Suppressors is their ability to handle higher voltages typical in industrial environments, such as 380 V, 480 V, or 600 V systems, which are not typically supported by single-phase suppressors. This makes them more suitable for heavy-duty applications where robust surge protection is critical.
Limitations
A limitation of 2-Wire Three Phase Surge Suppressors is that they may not be suitable for environments where the grounding system is inadequate, as their effectiveness relies on proper grounding to divert excess voltage. Additionally, they may not provide sufficient protection in systems with extremely high surge currents unless specifically designed for such conditions.
Considerations
When selecting a 2-Wire Three Phase Surge Suppressor, it is important to consider the initial cost and the potential operating expenses. While these devices can be more expensive upfront compared to single-phase suppressors, their durability and ability to protect costly industrial equipment can justify the investment. Maintenance costs should also be considered, as regular inspections and potential replacements are necessary to ensure continued protection. Durability and accuracy in diverting surges are crucial factors, as they directly impact the longevity and reliability of the protected equipment.
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: 2-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 120000 to 160000
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 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: 2-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 80000 to 160000
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 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: 2-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 80000 to 240000
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 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: 2-Wire
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 80000 to 120000
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 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 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 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 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 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 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 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