High-Quality China Economical Electrical Fire Current-Limiting Protector - Reliable Suppliers and Factory Solutions for Safety Manufacturers, Factories

The Economical Electrical Fire Current-Limiting Protector, designed by leading China suppliers, is an essential device for ensuring electrical safety in various applications. This innovative protector provides real-time current detection and rapid short-circuit current suppression within milliseconds to prevent arc faults effectively. It is equipped with monitoring capabilities for voltage, current, frequency, leakage, and temperature, along with optional arc fault detection. With its intelligent analysis features, the device enhances safety by delivering audible and visual alerts, as well as cloud notifications to facilitate quick hazard prevention. This product is perfect for DIN rail mounting and supports both wired RS485 and wireless communication via LORA, NB, and 4G. Ideal for residential, commercial, and industrial environments, this compact and responsive electrical protection solution is a must-have from a trusted factory for those seeking reliability and efficiency

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-Retart Material: Housing is constructed from flame-retart 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 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
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
What rated current options are available for this device?
The device is available in six rated current options: 20A, 32A, 40A, 50A, 63A, and 80A, making it suitable for a wide range of single-phase electrical circuit applications.
How fast does the short-circuit protection respond?
The short-circuit protection achieves a millisecond-level response with disconnection completed in less than 150ms, effectively suppressing arc generation and reducing the risk of electrical fires.
Does the device support wireless communication?
Yes, in addition to wired RS485 communication, optional wireless communication modules are available, including LORA, NB-IoT, and 4G, enabling remote monitoring and control.
Can the protection thresholds be customized?
Yes, the overvoltage, undervoltage, overload, and temperature protection thresholds are all user-configurable, each with an adjustable time delay of 0 to 60 seconds to suit different installation environments.
What types of environments is this device suitable for?
The device is widely applicable across diverse environments including metros, EV charging stations, shopping malls, airports, hotels, and factories, providing reliable electrical safety protection in each scenario.
How is the device installed?
The device is designed for quick and easy installation on standard 35mm DIN rails, making it compatible with most distribution and control cabinets. Its compact dimensions of 100(L) × 36(W) × 67(H) mm ensure efficient use of panel space.

Related Products