Type 1 Spark Gap Surge Protection Device FLP25GR-275/3S

Main Features:

Location of Use: Main Distribution Boards

Network Systems: TN-C

Mode of Protection: L-PEN

Surge Ratings: I_imp = 25 kA (10/350 μs), I_n = 25 kA (8/20 μs)

IEC/EN Category: Class l+II / Type 1+2

Protective Elements: Spark Gap

Housing: Monobloc Design

Compliance: IEC 61643-11:2011, EN 61643-11:2012

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Main Specification

This FLP25GR-275/3S is a high-performance Type 1 Spark Gap Surge Protection Device designed for TN-C and TN-S power systems. It features a monobloc design, providing robust lightning protection with both nominal discharge current In and impulse current Iimp rated at 25kA.

Model No.	FLP25GR-275/3S
	Nominal AC Voltage (50/60 Hz) U_o / U_n	230V
	Maximum Continuous Operating Voltage (AC) U_C	275V
	Nominal Discharge Current (8/20 μs) I_n	25 kA
	Maximum Discharge Current (8/20 μs) I_max	100 kA
	Impulse Discharge Current (10/350 μs) I_imp	25 kA
	Specific Energy W/R	156 kJ/Ω
	Charge Q	12,5 As
	Voltage Protection Level U_p	1500 V
	Response Time t_A	< 25 ns
	Max. Backup Fuse	315 A gL / gG
	Short-Circuit Current Rating (AC) I_SCCR	50 kA
	TOV Withstand 5 s U_T	335 V
TOV 120 min U_T	440 V
Number of Ports	1

Basic Circuit Diagram

Type 1 Spark Gap Surge Protection Device FLP25GR-275/3S features a 3+0 configuration (L1/L2/L3 to PEN) for TN-C systems, providing robust protection via spark gap technology between each line and PEN conductor.

Dimensions

The Type 1 Spark Gap Surge Protection Device FLP25GR-275/3S features compact dimensions for 35mm DIN rail mounting (per EN 60715), with standardized housing for space-efficient installation in distribution boards.

Installation Instructions

Install the Type 1 Spark Gap Surge Protection Device FLP25GR-275/3S on a 35mm DIN rail. Maintain total conductor length (a+b+c) under 50cm. Use a maximum 315A backup fuse. Apply 4.5Nm terminal torque. Professional installation is mandatory.

Wiring Diagram & Installation

The Type 1 Spark Gap Surge Protection Device FLP25GR-275/3S installs on DIN rail for TN-C systems. Follow wiring diagram L1, L2, L3 to PE, ensuring ≤50 cm leads for optimal surge discharge.

Remote Signaling Terminal

The Type 1 Spark Gap Surge Protection Device FLP25GR-275/3S features a remote signaling terminal that indicates SPD status—green for OK, red for defect—ensuring reliable monitoring.

Documentation

Documentation for Type 1 Spark Gap Surge Protection Device FLP25GR-275/3S includes IEC/EN 61643-11 certificates, installation manual, and technical datasheet for TN-C system application. All documents available for download.

Datasheet

Installation Instructions

Wiring Diagram