OEM Electrical Fire Current-Limiting Protector - Economical Type Manufacturers, Factory

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.

Product Description

Nine Core Functions
1
Quick Power Shutdown: Millisecond-level response during short circuits to suppress arc generation.
2
Voltage Monitoring: Overvoltage and undervoltage protection for electrical stability.
3
Current Monitoring: Accurate detection with configurable overload protection.
4
Leakage Current Monitoring: Optional insulation fault identification for safety.
5
Short-Circuit Current Limitation: Restricts current rise to reduce electrical fire risk.
6
Temperature Monitoring: External sensor support to prevent cable overheating.
7
Audible & Visual Alarms: Immediate local notification of abnormal conditions.
8
Flame-Retardant Material: High-temperature resistant housing.
9
DIN Rail Mounting: Standard 35mm rail compatibility.
Technical Parameters
Rated Current20A \ 32A \ 40A \ 50A \ 63A \ 80A
Supply Voltage220VAC (175~250V)
DisplayDigital screen
Short Circuit Protection<150ms
Overload ProtectionRange: 0~100%In adjustable; Delay: 0~60s
Overvoltage ProtectionRange: 221~300V adjustable; Delay: 0~60s
Undervoltage ProtectionRange: 100~187V adjustable; Delay: 0~60s
Temperature MonitoringRange: 0~85℃ adjustable; Delay: 0~60s (Optional)
CommunicationWired RS485, Wireless LORA, NB, 4G (Optional)
Operating Temperature-20~85℃
Humidity<95%RH
Dimensions100(L) * 36(W) * 67(H) (mm)
MountingStandard 35mm DIN rail
Product Display
budget-type-single-phase-current-limiter
affordable-single-phase-overcurrent-protection-device
Outline and Installation Dimension
Plane-Layout-Diagram

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.

Application-Scenario-Diagram
Frequently Asked Questions
How fast does the short-circuit protection respond?
The device achieves a millisecond-level response, typically disconnecting in less than 150ms to prevent arc generation.
Is the protection range adjustable for different requirements?
Yes, the device features configurable overload (0-100%In), overvoltage (221-300V), and undervoltage (100-187V) protection settings.
What kind of communication protocols does it support?
It supports various communication options including wired RS485 and wireless LORA, NB, or 4G for remote monitoring.
Does it provide temperature monitoring?
Yes, it supports optional external temperature sensors to monitor cables or equipment from 0 to 85℃.
How is this device installed?
The device is designed for quick integration and is compatible with standard 35mm DIN rails.
What material is the product housing made of?
The housing is constructed from high-quality flame-retardant material to resist ignition in high-temperature environments.

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