Electrical Fireproof Current-Limiting Protection Three-Phase Fireproof Current-Limiting Relay (Track-Type) 63A_SupplyPro Co., Ltd._Yongnuo Electrical (Leqing) Co., Ltd.
Yongnuo Electrical (Leqing) Co., Ltd. Track-mounted meters, electrical fire-limiting protective devices, power meters, multi-functional meters, track-mounted meters
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Electrical Fireproof Current-Limiting Protection Three-Phase Fireproof Current-Limiting Relay (Track-Type) 63A

Three-phase current limiting protector, effectively overcoming the issues of large short-circuit current, long time for cutting off short-circuit current, large arc sparks during short-circuit, and rapid limiting of short-circuit current with a microsecond speed during lifespan failure to achieve arc protection. Rated current: 0-80A, widely used for line protection in the end and branch circuits of various power supply places such as school dormitories, hospitals, shopping malls, hotels, warehouses, residential areas, electric vehicle charging stations, and marketplaces.

Product Features

Short-circuit breaking capacity: 0.00015 seconds

Real-time measurement of current magnitude

Fan design, to prevent equipment overheating

Track installation, enhance work efficiency

Application fields cover various sectors.

Feature Description

Fault protection function: In the event of a product malfunction, a fault indicator will be activated, and the self-protection function will be initiated.

Overload Protection Function: Cuts off the overloaded circuit after continuous overload for 3 seconds to prevent fires caused by overload.

Short-circuit protection function: Cuts off the circuit power within 150 microseconds when a protected distribution circuit experiences a short circuit, preventing fires caused by the short circuit.

Real-time current measurement function: Measures the current magnitude in the protected distribution circuit in real time.

Communication Function: Supports connection to electrical fire monitoring equipment for remote monitoring.

Real-time temperature measurement feature: Monitors the cable temperature within the protected power distribution circuit in real time. If the cable temperature exceeds the set threshold, an alarm message is sent to the host computer, and the alarm status remains until reset.

Technical Specifications

Technical SpecificationsIndex
Rated VoltageAC220V/50Hz
Work scheduleOn-site power supply, 24/7 operation
Power ConsumptionSelf-consumption power ≤ 3W (no load)
Port rate$9,600 (default)
Communication MethodRS485
Communication ProtocolMODBUS-RTU
Work EnvironmentWorkplaceAreas with weatherproof and dustproof conditions
Ambient Temperature-25℃~+50℃
Relative Temperature10% to 95% (non-caking)
Poster heightNo more than 5,000 m

Dimensions and wiring diagram

Guide rail: Length 155mm x Width 108mm x Depth 70mm




Wiring diagram


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Hotline:17306773009
  • Product Introduction
  • Technical Parameters
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Three-phase current limiting protector, effectively overcoming the issues of large short-circuit current, long time for cutting off short-circuit current, large arc sparks during short-circuit, and rapid limiting of short-circuit current with a microsecond speed during lifespan failure to achieve arc protection. Rated current: 0-80A, widely used for line protection in the end and branch circuits of various power supply places such as school dormitories, hospitals, shopping malls, hotels, warehouses, residential areas, electric vehicle charging stations, and marketplaces.

Product Features

Short-circuit breaking capacity: 0.00015 seconds

Real-time measurement of current magnitude

Fan design, to prevent equipment overheating

Track installation, enhance work efficiency

Application fields cover various sectors.

Feature Description

Fault protection function: In the event of a product malfunction, a fault indicator will be activated, and the self-protection function will be initiated.

Overload Protection Function: Cuts off the overloaded circuit after continuous overload for 3 seconds to prevent fires caused by overload.

Short-circuit protection function: Cuts off the circuit power within 150 microseconds when a protected distribution circuit experiences a short circuit, preventing fires caused by the short circuit.

Real-time current measurement function: Measures the current magnitude in the protected distribution circuit in real time.

Communication Function: Supports connection to electrical fire monitoring equipment for remote monitoring.

Real-time temperature measurement feature: Monitors the cable temperature within the protected power distribution circuit in real time. If the cable temperature exceeds the set threshold, an alarm message is sent to the host computer, and the alarm status remains until reset.

Technical Specifications

Technical SpecificationsIndex
Rated VoltageAC220V/50Hz
Work scheduleOn-site power supply, 24/7 operation
Power ConsumptionSelf-consumption power ≤ 3W (no load)
Port rate$9,600 (default)
Communication MethodRS485
Communication ProtocolMODBUS-RTU
Work EnvironmentWorkplaceAreas with weatherproof and dustproof conditions
Ambient Temperature-25℃~+50℃
Relative Temperature10% to 95% (non-caking)
Poster heightNo more than 5,000 m

Dimensions and wiring diagram

Guide rail: Length 155mm x Width 108mm x Depth 70mm




Wiring diagram


品牌: Yongnuo Electrical
Model: Customization supported
Region: National
Reference Voltage: 3 x 220/380V
单价: 电议
最小起订Quantity:
供货总Quantity:
有效期至: 长期有效
最后更新: 2025-04-30 13:08

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