本身

html

25ka Surge Arrester 25GR 4P Type 1 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 caused by lightning strikes or switching operations. This robust arrester is engineered to meet the demanding requirements of industrial and commercial applications.

Key Specifications

  • Nominal Discharge Current (In): 25kA

  • Maximum Discharge Current (Imax): 50kA

  • Voltage Protection Level (Up): ≤ 2.5kV

  • Rated Voltage (Uc): 275V AC

  • Response Time: ≤ 100ns

  • Number of Poles: 4P (4-pole)

  • Type: Type 1 (Class I)

  • Operating Temperature Range: -40°C to +80°C

Main Features

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

Superior Protection

With a 25kA nominal discharge current rating, this device provides excellent protection against direct lightning strikes and powerful surge currents.

Fast Response Time

The arrester reacts within nanoseconds to divert dangerous surge currents away from sensitive equipment.

Durable Construction

Built with high-quality materials, the 25GR model features robust housing that withstands harsh environmental conditions.

Visual Status Indication

Equipped with clear status indicators to show the operational state of the device.

Easy Installation

Designed for simple mounting with standard DIN rail compatibility.

Applications

The 25ka Surge Arrester 25GR 4P Type 1 is ideal for:

  • Main distribution panels

  • Industrial power systems

  • Commercial buildings

  • Telecommunication facilities

  • Critical infrastructure protection

Compliance and Standards

This surge arrester complies with:

  • IEC 61643-11

  • UL 1449

  • CE Marking

Conclusion

The 25ka Surge Arrester 25GR 4P Type 1 offers reliable protection against high-energy surges with its robust design and superior technical specifications. Its combination of high discharge capacity, fast response time, and durable construction makes it an excellent choice for critical electrical installations requiring Type 1 surge protection.