China Economical Electrical Fire Current-Limiting Protector - Reliable Suppliers and Factory Solutions for Safety
Nine Core Functions
- 1Quick Power Shutdown: Achieves millisecond-level response and disconnection during short circuits, effectively suppressing arc generation.
- 2Voltage Monitoring: Continuously monitors supply voltage, with configurable overvoltage and undervoltage protection to ensure electrical stability.
- 3Current Monitoring: Accurately detects circuit current with configurable overload protection to prevent wiring overloads.
- 4Leakage Current Monitoring: Optional leakage detection identifies insulation faults promptly, enhancing personnel safety.
- 5Short-Circuit Current Limitation: Rapidly restricts short-circuit current rise, reducing the risk of electrical fires at the source.
- 6Temperature Monitoring: Supports external temperature sensors to monitor cable or equipment temperature, preventing overheating incidents.
- 7Audible & Visual Alarms: Equipped with local audible and visual warnings for immediate notification of abnormal conditions.
- 8Flame-Retardant Material: Housing is constructed from flame-retardant material, resisting ignition in high-temperature environments.
- 9DIN 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
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
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.







Claire
Mr.Fu

Claire











