China Electrical Fire Current-Limiting Protector - Economical Type Manufacturer, Companies

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China Electrical Fire Current-Limiting Protector - Economical Type Manufacturer, Companies

The Economical Electrical Fire Current-Limiting Protector offers real-time current detection and millisecond-level short-circuit current suppression to prevent arc faults. It integrates monitoring for voltage, current, frequency, leakage, temperature, and optional arc fault detection. With intelligent analysis, it enhances electrical safety by providing audible/visual alerts and cloud notifications for prompt hazard prevention. Suitable for DIN rail mounting, it supports wired RS485 and wireless LORA, NB, and 4G communication. Ideal for residential, commercial, and industrial applications requiring reliable, compact, and responsive electrical protection.

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Product Description

Nine Core Functions

1. Quick Power Shutdown Achieves millisecond-level response and disconnection during short circuits, effectively suppressing arc generation.

2. Voltage Monitoring Continuously monitors supply voltage, with configurable overvoltage and undervoltage protection to ensure electrical stability.

3. Current Monitoring Accurately detects circuit current with configurable overload protection to prevent wiring overloads.

4. Leakage Current Monitoring Optional leakage detection identifies insulation faults promptly, enhancing personnel safety.

5. Short-Circuit Current Limitation Rapidly restricts short-circuit current rise, reducing the risk of electrical fires at the source.

6. Temperature Monitoring Supports external temperature sensors to monitor cable or equipment temperature, preventing overheating incidents.

7. Audible & Visual Alarms Equipped with local audible and visual warnings for immediate notification of abnormal conditions.

8. Flame-Retardant Material Housing is constructed from flame-retardant material, resisting ignition in high-temperature environments.

9. DIN Rail Mounting Compatible with standard 35mm DIN rails for quick integration into various distribution and control cabinets.

Technical Parameters

Rated Current	20A \ 32A \ 40A \ 50A \ 63A \ 80A
Supply Voltage	220VAC (175~250V)
Display	Digital screen
Short Circuit Protection	<150ms
Overload Protection	Range: 0~100%In adjustable; Delay: 0~60s
Overvoltage Protection	Range: 221~300V adjustable; Delay: 0~60s
Undervoltage Protection	Range: 100~187V adjustable; Delay: 0~60s
Temperature Monitoring	Range: 0~85℃ adjustable; Delay: 0~60s (Optional)
Communication	Wired RS485, Wireless LORA, NB, 4G (Optional)
Operating Temperature	-20~85℃
Humidity	<95%RH
Dimensions	100(L) × 36(W) × 67(H) mm
Mounting	Standard 35mm DIN rail

Product Display

budget-type-single-phase-current-limiter

affordable-single-phase-overcurrent-protection-device

Outline and Installation Dimension

100(L) × 36(W) × 67(H) mm

Wide Application

It is widely used in various scenarios such as metros, EV charging stations, malls, airports, hotels, factories, etc., ensuring electrical safety across multiple environments.

Frequently Asked Questions

How fast does the short-circuit protection respond?

The short-circuit protection responds in less than 150 milliseconds (<150ms), allowing quick power shutdown to suppress arc generation and minimize fire hazards.

Can the voltage and current protection values be adjusted?

Yes. Overload protection is adjustable within 0~100%In, overvoltage protection can be configured between 221~300V, and undervoltage protection is adjustable between 100~187V. Both offer selectable trip delay settings from 0 to 60 seconds.

What communication protocols are supported?

The unit offers flexible optional communication methods, including wired RS485 connectivity and wireless modules such as LORA, NB-IoT, and 4G for remote management and data upload.

How is the device installed?

The device features a compact housing dimension of 100(L) × 36(W) × 67(H) mm and is engineered for quick mounting on standard 35mm DIN rails inside distribution boxes or control cabinets.

Is the device suitable for harsh ambient environments?

Yes. It operates efficiently within an operating temperature range of -20°C to +85°C and withstands relative humidity levels up to <95%RH. The shell is made of robust flame-retardant material.

China Electrical Fire Current-Limiting Protector - Economical Type Manufacturer, Companies

Product Description

Nine Core Functions

Technical Parameters

Product Display

Outline and Installation Dimension

Wide Application

Frequently Asked Questions

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