Type 1 Spark Gap Surge Protection Device FLP50GR-275/3S

Name: Type 1 Spark Gap Surge Protection Device FLP50GR-275/3S
Brand: LSP

Main Features:

Location of Use: Main Distribution Boards

Network Systems: TN-C

Mode of Protection: L-PEN

Surge Ratings: I_imp = 50 kA (10/350 μs), I_n = 50 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

Type 1 Spark Gap Surge Protection Device FLP50GR-275/3S offers Iimp 50kA (10/350µs), Uc 275V, Up 1.8kV. Designed for TN-C systems (3+0 mode), with 500A backup fuse and remote signaling. Certified to IEC 61643-11.

Model No.	FLP50GR-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	50 kA
	Maximum Discharge Current (8/20 μs) I_max	100 kA
	Impulse Discharge Current (10/350 μs) I_imp	50 kA
	Specific Energy W/R	156.5 kJ/Ω
	Voltage Protection Level U_p	1800 V
	Max. Backup Fuse	500 A gL / gG
	Short-Circuit Current Rating (AC) I_SCCR	10 kA
	TOV Withstand 5 s U_T	335 V
	TOV 120 min U_T	530 V
	Number of Ports	1

Basic Circuit Diagram

Type 1 Spark Gap Surge Protection Device FLP50GR-275/3S is designed for TN-C systems (3+0 configuration), providing robust L-PEN protection with a built-in spark gap. It includes remote signaling contacts for status monitoring.

Dimensions

Type 1 Spark Gap Surge Protection Device FLP50GR-275/3S features compact dimensions of 90mm x 95.5mm x 144mm for 35mm DIN rail mounting, enabling space-efficient integration in distribution boards.

Installation Instructions

Type 1 Spark Gap Surge Protection Device FLP50GR-275/3S mounts on 35mm DIN rail. Torque terminals to 3.5-4.0 Nm. Use 6-35mm² (L/PEN) copper conductors. Connect remote contacts (11-12-14) for status monitoring.

Wiring Diagram & Installation

This Spark Gap Surge Protection Device is DIN rail mountable. Use standard parallel wiring , with connection leads <50cm for optimal lightning current discharge performance.

Remote Signaling Terminal

Remote Signaling Terminal monitors Spark Gap Surge Protection Device status. NO/NC contacts for remote control.

Documentation

Type 1 Spark Gap Surge Protection Device FLP50GR-275/3S is certified per IEC/EN 61643-11. Complete documentation includes installation manual, technical datasheet, and CE Declaration of Conformity.

Datasheet

Installation Instructions

Wiring Diagram