25ka Surge Arrester 25GR 4P Type 1 Technical Specifications and Features

Introduction

The 25ka Surge Arrester 25GR 4P Type 1 is a high-performance surge protection device designed to safeguard electrical systems from transient overvoltages. This arrester is particularly suitable for industrial and commercial applications where robust protection against lightning strikes and power surges is required.

Key Features

The 25GR 4P Type 1 surge arrester offers several important features:

25kA maximum discharge current capacity

Type 1 classification for direct lightning strike protection

4-pole configuration for comprehensive phase-to-phase and phase-to-ground protection

Compact and durable design for easy installation

Visual status indication for quick monitoring

Technical Specifications

Parameter	Value
Nominal Discharge Current (In)	10kA
Maximum Discharge Current (Imax)	25kA
Voltage Protection Level (Up)	≤ 2.5kV
Response Time	< 100ns
Operating Temperature Range	-40°C to +80°C
Protection Mode	L-N, N-PE

Applications

The 25ka 25GR 4P Type 1 surge arrester is ideal for:

Main distribution boards in commercial buildings

Industrial power distribution systems

Telecommunication facilities

Data centers

Medical facilities requiring high-level surge protection

Installation Considerations

When installing the 25GR 4P Type 1 surge arrester:

Mount close to the service entrance for optimal protection

Ensure proper grounding connections

Follow all local electrical codes and regulations

Consider using Type 2 surge protectors downstream for additional protection

Maintenance

Regular maintenance of the surge arrester includes:

Visual inspection of status indicators

Checking for any physical damage

Verifying tightness of connections

Periodic testing according to manufacturer recommendations

Conclusion

The 25ka Surge Arrester 25GR 4P Type 1 provides reliable protection against high-energy surges and lightning strikes. Its robust design and high discharge capacity make it an excellent choice for critical electrical installations requiring maximum surge protection at the service entrance point.

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