NC/NO Dry Contacts Single Phase Surge Suppressors
Description
NC/NO Dry Contacts Single 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 tailored for single-phase AC power systems, which are commonly used in residential and light commercial applications. They ensure the continuity of electrical service by preventing damage to equipment caused by transient overvoltages.
Working Principle
Single-phase surge suppressors operate by detecting voltage spikes and redirecting the excess energy away from the protected circuit. They typically use components such as metal oxide varistors (MOVs) or gas discharge tubes (GDTs) to achieve this. When the voltage exceeds a certain threshold, these components conduct the surge energy to the ground, thereby protecting the connected equipment. This mechanism is crucial as it helps maintain the integrity and functionality of electrical systems by mitigating the risks associated with transient overvoltages.
Applications
Single-phase surge suppressors are widely used in environments where single-phase AC power is prevalent. Specific applications include protecting household appliances, office equipment, and small-scale industrial machinery. For instance, they are essential in safeguarding computers and telecommunications equipment from voltage spikes that could lead to data loss or hardware damage.
Advantages over other Single Phase Surge Suppressors
One of the advantages of NC/NO Dry Contacts Single Phase Surge Suppressors is their ability to provide both visual and audio indicators of their operational status, as seen in some models that feature LED and alarm systems . This feature enhances user awareness and facilitates timely maintenance. Additionally, the hybrid design incorporating MOV and GDT technologies offers robust protection by combining the strengths of both components .
Limitations
A limitation of these surge suppressors is that they may not be suitable for high-energy applications or environments with frequent and severe voltage spikes. The effectiveness of the suppressors can diminish over time, especially if they are exposed to repeated surges, necessitating regular checks and potential replacements.
Considerations
When considering NC/NO Dry Contacts Single Phase Surge Suppressors, it is important to evaluate the initial cost against the potential savings from prevented damage. Operating expenses are generally low, but the durability of the suppressors can vary based on the frequency and intensity of voltage spikes they encounter. Regular maintenance and periodic replacement are necessary to ensure continued protection, which should be factored into the overall cost of ownership.
from Surge Suppression Incorporated
Individual Circuit Protection Series 1 [See More]
- Features: Continuously Live Electrical Outputs Available; Integral Grounding Wire; Hospital Grade (optional feature); NEMA Enclosure; NC/NO Dry Contacts; Remote alarm contacts; Sine-wave Tracking; 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: 2-Wire
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-610 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 Single-Phase 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: 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
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
- Voltage: 120; 240; 480; 600; 120/240; 120/208; 277/480; 347/600; 240-415 V, 400-690 V
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-515-1100 from Transtector is a DIN-Rail style SPD that utilizes state of the art SASD technology to protect critical equipment that operates on a 120 Vac Single-Phase 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: 10000
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
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]
- 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) 1102-014-7 from Transtector is an IEC 61643-11 Class II DIN-Rail style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 230 Vac Single-Phase 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 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
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 Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) I2R-T112-2PG230 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 Single-Phase + CM electrical service. This surge protector provides... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: DIN Rail
- Surge Current: 50000
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 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 Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) I2R-T112-2P230 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 Single-Phase 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 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) I2R-T125-2PG230 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 Single-Phase + CM electrical service. This surge protector provides... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: DIN Rail
- Surge Current: 100000
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) I2R-T125-2P230 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 Single-Phase 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: 100000
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) I2R-T240-2PG120 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 120 Vac Single-Phase + CM electrical service. This surge protector provides... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: DIN Rail
- Surge Current: 40000
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.
Transtector AC surge protector / arrester (Also known as alternating current surge protection device or SPD as well as transient voltage surge suppressor or TVSS) I2R-T240-1P120 is in-stock and will ship same business day as purchased from us. Our AC surge protector / SPD provides overvoltage... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: DIN Rail
- Surge Current: 40000
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) I2R-T240-2PG230 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 Single-Phase + CM electrical service. This surge protector provides... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: DIN Rail
- Surge Current: 40000
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) I2R-T240-1P230 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 Single-Phase 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: 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]
- 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) I2R-T240-2PG277 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 277 Vac Single-Phase + CM electrical service. This surge protector provides... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: DIN Rail
- Surge Current: 40000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) I2R-T240-1P277 from Transtector is a DIN-Rail style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 277 Vac Single-Phase 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: 40000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) I2R-T240-1P400 from Transtector is a DIN-Rail style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 400 Vac Single-Phase 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: 40000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) I2R-T240-1P690 from Transtector is a DIN-Rail style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 690 Vac Single-Phase 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: 30000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-172-2 from Transtector is a brick style SPD that utilizes state of the art SASD technology to protect critical equipment that operates on a 240 Vac Single-Phase electrical service. This surge protector pro-vides effective protection... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Silicon Avalanche Diode
- Mounting: Wall/Panel
- Surge Current: 3000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-1153 from Transtector is a DIN-Rail assy style SPD that utilizes state of the art SASD/MOV technology to protect critical equipment that operates on a 120 Vac Single-Phase 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: Wall/Panel; DIN Rail
- Surge Current: 30000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-1154 from Transtector is a DIN-Rail assy style SPD that utilizes state of the art SASD/MOV technology to protect critical equipment that operates on a 120/240 Vac split-phase electrical service. This surge protector provides... [See More]
- Features: NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor; Silicon Avalanche Diode
- Mounting: Wall/Panel; DIN Rail
- Surge Current: 30000
from Transtector Systems, Inc.
AC surge protector (also known as SPD or lightning protector) 1101-1023 from Transtector is a panel style SPD that utilizes state of the art MOV technology to protect critical equipment that operates on a 120 Vac Single-Phase 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: 30000
from Transtector Systems, Inc.
The SP Plus provides all mode system protection and integrity for critical applications. A compact design listed to UL 1449 4th Edition with robust surge capacity for long life and easy installation makes this unit ideal for all your surge protection requirements. [See More]
- Features: Integral Audible Alarm; NC/NO Dry Contacts; Simple visual indicators (e.g. LEDs)
- Surge Current: 50000 to 100000
- Technology: Metal Oxide Varistor
- Operating Temp: -40 to 185