Self-Diagnostics Three Phase Surge Suppressors
Last Updated: April 1, 2025
Description
Self-Diagnostics Three Phase Surge Suppressors are devices designed to protect electrical systems from voltage spikes by automatically detecting and responding to surges. These suppressors are equipped with self-diagnostic capabilities that allow them to monitor their own performance and alert users to any issues or failures, ensuring continuous protection of the electrical system.
Working Principle
Three Phase Surge Suppressors operate by channeling excess voltage away from sensitive components during a surge event. They typically use components like thyristors, which can short out to prevent continued operation during a surge, thereby protecting the system from damage . The self-diagnostic feature enhances their utility by continuously assessing the suppressor's functionality and providing alerts if maintenance or replacement is needed, ensuring reliability and reducing downtime.
Applications
Three Phase Surge Suppressors are commonly used in industrial settings where three-phase power systems are prevalent. Specific applications include protecting programmable logic controllers (PLCs), PLC networks, and computer circuits from high voltages . They are also used in telecommunications and data centers to safeguard critical infrastructure from power surges.
Advantages over other Three Phase Surge Suppressors
The self-diagnostic capability of these suppressors provides a significant advantage over traditional models. This feature allows for proactive maintenance, reducing the risk of unexpected failures and ensuring that the suppressor is always functioning optimally. This can lead to increased system uptime and reduced maintenance costs.
Limitations
One limitation of self-diagnostics three phase surge suppressors is that they may require more complex installation and setup compared to standard suppressors. Additionally, the self-diagnostic features may add to the initial cost of the device.
Considerations
When considering the implementation of self-diagnostics three phase surge suppressors, it is important to evaluate the initial costs, which may be higher due to the advanced features. However, these costs can be offset by the reduced operating expenses and maintenance costs over time, as the self-diagnostic capabilities help in early detection of issues. Durability and accuracy are generally high, but regular checks and maintenance are recommended to ensure long-term reliability. Replacement costs should also be considered, as the advanced technology may require specific components that are more expensive than those used in standard suppressors.
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
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]
- Features: 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: DIN Rail
- Surge Current: 50000
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: 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
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 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. 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 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 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 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; 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; Silicon Avalanche Diode (optional feature)
- Mounting: Wall/Panel
- Surge Current: 90000 to 240000
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 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 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 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 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 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 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