Thermal Fusing Single Phase Surge Suppressors
Description
Thermal Fusing Single Phase Surge Suppressors are devices designed to protect electrical equipment from voltage spikes by interrupting the flow of electricity when a surge is detected. They are specifically engineered to handle single-phase electrical systems, providing a critical layer of protection to prevent damage to sensitive electronic components.
Working Principle
Thermal Fusing Single Phase Surge Suppressors operate by utilizing a thermal fuse that responds to excessive heat generated by a power surge. When a surge occurs, the suppressor channels the excess voltage away from the protected equipment, often directing it to the ground. The thermal fuse acts as a safety mechanism, disconnecting the circuit if the surge exceeds the device's capacity, thereby preventing overheating and potential damage. This mechanism is particularly useful because it ensures that the suppressor can handle multiple surges without failing, providing ongoing protection for connected devices.
Applications
These surge suppressors are commonly used in residential and commercial settings where single-phase power systems are prevalent. Specific examples include protecting home appliances, office equipment, and small industrial machines from voltage spikes that can occur due to lightning strikes, power outages, or grid switching.
Advantages over other Single Phase Surge Suppressors
One of the key advantages of thermal fusing surge suppressors is their ability to provide reliable protection without requiring frequent maintenance or replacement. Unlike some other types of suppressors, which may degrade over time or after a single surge event, thermal fusing suppressors are designed to withstand multiple surges, offering a longer lifespan and consistent performance.
Limitations
A notable limitation of thermal fusing surge suppressors is their response time. While effective, they may not react as quickly as other types of suppressors, such as those using gas discharge tubes, which can be a disadvantage in environments where rapid response to surges is critical.
Considerations
When selecting a thermal fusing single phase surge suppressor, it is important to consider factors such as initial cost, which can vary depending on the device's specifications and brand. Operating expenses are generally low, as these devices do not consume power during normal operation. Durability is a strong point, with many models designed to last for several years without needing replacement. However, accuracy in terms of response to surges can vary, so it is crucial to choose a model that matches the specific needs of the application. Replacement and maintenance costs are typically minimal, but it is advisable to periodically check the device's condition to ensure optimal performance.
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
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 Surge Suppression Incorporated
Advantage panel Protection Series, Nema 1, Frequency Responsive Circuitry / Voltage Response Circuitry (Sine Wave Tracking) [See More]
- Features: Integral Audible Alarm (optional feature); Integral Grounding Wire; Hospital Grade (optional feature); Integral Disconnect (optional feature); NEMA Enclosure; NC/NO Dry Contacts (optional feature); Remote alarm contacts (optional feature); Sine-wave Tracking; Surge Counter (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Hybrid
- Mounting: Device Mount
- Operating Temp: 176
from SOCOMEC
The SURGYS G70 surge arrester is designed to ensure reinforced protection of single-phase and three-phase networks. It acts against industrial operation overvoltages and overvoltages owing to lightning. This type of Surge Protective Device is particularly recommended in case of heightened risk of... [See More]
- Features: Remote alarm contacts; On-board Thermal Fusing
- Surge Current: 70000
- Mounting: DIN Rail
- Operating Temp: -40 to 185
from Schneider Electric Surge Protection
Maintenance free, long life, metal oxide varistor design [See More]
- Features: On-board Thermal Fusing
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel
- Surge Current: 40000
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
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
These surge protector units are designed to protect a single-phase input and are recommended for mounting on a board or in a utility box. This series lets you choose a product by housing (metal or plastic), dimensions, performance, connection mode (series or parallel), or type of connection (wires... [See More]
- Features: Integral Disconnect; On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Metal Oxide Varistor
- Mounting: Wall/Panel; Plate
- Voltage: 480; 230-277 Vac, 230-277 Vac, 230 Vac, 110-130 Vac, 24 Vac
from Surge Suppression Incorporated
Advantage panel Protection Series, Nema 1, Frequency Responsive Circuitry / Voltage Response Circuitry (Sine Wave Tracking) [See More]
- Features: Integral Audible Alarm (optional feature); Integral Grounding Wire; Hospital Grade (optional feature); Integral Disconnect (optional feature); NEMA Enclosure; NC/NO Dry Contacts (optional feature); Remote alarm contacts (optional feature); Sine-wave Tracking; Surge Counter (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Hybrid
- Mounting: Device Mount
- Operating Temp: 176
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
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 CITEL SURGE PROTECTION
The MLPC is a economical, compact SPD for LED Drivers. The SPD protects any 120-277Vac single phase driver from the effects of lightning and switching transients. The unit is installed in series with the load and turns off the LED when maintenance is required and has an LED indicator for power... [See More]
- Features: Integral Disconnect; On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Surge Current: 10000
- Mounting: Plate
- Operating Temp: -40 to 185
from Surge Suppression Incorporated
Advantage panel Protection Series, Nema 1, Frequency Responsive Circuitry / Voltage Response Circuitry (Sine Wave Tracking) [See More]
- Features: Integral Audible Alarm (optional feature); Integral Grounding Wire; Hospital Grade (optional feature); Integral Disconnect (optional feature); NEMA Enclosure; NC/NO Dry Contacts (optional feature); Remote alarm contacts (optional feature); Sine-wave Tracking; Surge Counter (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Hybrid
- Mounting: Device Mount
- Operating Temp: 176
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
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 CITEL SURGE PROTECTION
CITEL model DS250VG is a heavy duty AC Surge Protection Device (SPD) for high risk, low tolerance electrical service entrance applications. The DS250VG provides protection against the direct and indirect effects of lightning and is particularly useful in a high lightning area where the risk of heavy... [See More]
- Features: On-board Thermal Fusing
- Technology: VG Technology for Maximum Performance
- Mounting: Symmetrical Rail 35 mm
- Operating Temp: -40 to 185
from Surge Suppression Incorporated
Individual Circuit Protection (Euro Style DIN Mounted) Series [See More]
- Features: Continuously Live Electrical Outputs Available; Integral Grounding Wire; Sine-wave Tracking (optional feature); On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Hybrid
- Mounting: DIN Rail; Device Mount; In-line or Integrally Attached
- Wires: 2-Wire
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
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 CITEL SURGE PROTECTION
CITEL model DS150E is a heavy duty AC Surge Protection Device (SPD) for high exposure applications such as direct lightning strikes, capacitor bank switching and large inductive loads. The DS150E is a single pole device that incorporated a multi-varistor circuit. It offers unmatched mechanical... [See More]
- Features: Integral Disconnect; On-board Thermal Fusing
- Technology: Metal Oxide Varistor
- Mounting: Symmetrical Rail 35 mm
- Operating Temp: -40 to 185
from Surge Suppression Incorporated
Individual Circuit Split and Three Phase Protection Series [See More]
- Features: Integral Audible Alarm (optional feature); Continuously Live Electrical Outputs Available; Integral Grounding Wire; Hospital Grade (optional feature); NEMA Enclosure; NC/NO Dry Contacts (optional feature); Remote alarm contacts (optional feature); 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: 3-Wire
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
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 CITEL SURGE PROTECTION
CITEL model DS40 is a standard duty AC Surge Protector (SPD) used in distribution or control panel applications. The DS40 is a single pole module that can be combined with other DS40 modules or a DS40G (N-G Mode Only) module. It is configurable for all 1, 2, and 3 phase application up to 480V AC. [See More]
- Features: On-board Thermal Fusing
- Operating Temp: -40 to 185
- Mounting: Symmetrical Rail 35 mm
- Voltage: 120; 480; 277-347 V, 220-240 V, 120-127 V, 277-347 V
from Surge Suppression Incorporated
Residential Grade Panel Protection Series [See More]
- Features: Integral Grounding Wire; NEMA Enclosure; On-board Thermal Fusing; Simple visual indicators (e.g. LEDs)
- Technology: Hybrid
- Mounting: Device Mount
- Operating Temp: 176
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
CITEL model DS70RS is a standard duty AC Surge Protector (SPD) used in distribution or control panel applications. The DS70RS is a single pole module. It is configurable for all 1, 2, and 3 phase application up to 70kA. UL1449 3rd Edition. (UL1449 4th Edition - Type 1CA for -400, -600 *Other... [See More]
- Features: On-board Thermal Fusing
- Technology: Metal Oxide Varistor
- Mounting: Symmetrical Rail 35 mm
- Operating Temp: -40 to 185
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 CITEL SURGE PROTECTION
CITEL model DS240 surge protectors are used mainly for distribution panels of single-phase and three-phase networks. They provide common-mode protection (between the active conductors and ground) and are available with an option remote alarm. The DS240 is built with a plug-in module and a fixed... [See More]
- Features: Integral Disconnect; On-board Thermal Fusing
- Operating Temp: -40 to 185
- Mounting: Symmetrical Rail 35 mm
- Voltage: 120; 208; 220; 240; 277
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 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 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