Product Features
The G20-B+C/4.5 surge protective device integrates Type 1 and Type 2 protection in one compact module. It efficiently diverts lightning and transient surges, safeguarding electrical installations. Built with high-quality metal oxide varistors (MOVs) and thermal disconnectors, it ensures fast response, stable performance, and easy replacement on standard DIN rails.
Technical Parameters
Rated voltage: 230/400V AC; nominal discharge current (In): 2.25kA; maximum discharge current (Imax): 4.5kA; protection level (Up): ≤1.5kV. The device includes fault indication windows and modular plug-in design for quick maintenance. Compatible with 35mm DIN rail installation.
| Parameter | Specification |
|---|---|
| Product Series | G20-B+C/4.5 |
| Type | Type 1+2 Surge Protective Device |
| Max Continuous Operating Voltage (Uc) | 275-280V AC |
| Nominal Discharge Current (In) | 30kA |
| Max Discharge Current (Imax) | 60kA |
| Lightning Impulse Current (Iimp) | 4.5kA |
| Voltage Protection Level (Up) | ≤ 1.5kV |
| Response Time | ≤ 25ns |
| Operating Temperature Range | -40°C to +80°C |
| Degree of Protection | IP20 |
| Installation | 35mm DIN rail |
| Features | Modular pluggable design, fault indication window, optional remote signaling, thermal cutoff protection |
| Standards Compliance | IEC 61643-11, EN 61643-11 |
Application
Suitable for residential, commercial, and light industrial power distribution systems. The G20-B+C/4.5 SPD protects control panels, communication lines, and electrical networks from voltage surges caused by lightning or grid disturbances.
Why Choose Us
We are an experienced SPD manufacturer with strict quality control, fast lead times, and flexible OEM services. Our surge protection devices are widely exported and comply with international safety standards, ensuring durability and reliability for global markets.
FAQ
What surge current ratings does the G30-B+C/4.5 series support?
The nominal discharge current is 4.5kA, suited for low to moderate surge protection applications in power systems.
What certifications and standards do these devices meet?
The series complies with EN 61643-11 and IEC 61643-11, along with CE, RoHS, and CQC certifications for safety and environmental compatibility.
What is the typical response time?
They have an ultra-fast response time of approximately 25 nanoseconds, ensuring prompt surge suppression.
What maximum operating voltage is supported?
These devices support continuous operating voltages up to 600V AC for various low-voltage distribution systems.
How is the operational status indicated?
The device status is visually shown with green for normal operation and red for fault conditions for easy monitoring.
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