Type 1 Spark Gap Surge Protection Device FLP50GR-275/4S

Name: Type 1 Spark Gap Surge Protection Device FLP50GR-275/4S
Brand: LSP

Main Features:

Location of Use: Main Distribution Boards

Network Systems: TN-S

Mode of Protection: L-PE, N-PE

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 FLP50GR-275/4S offers Iimp 50kA (10/350μs), Uc 275V, Up 1800V, for TN-S systems (3P+N). Complies with IEC 61643-11, with remote signaling and 500A backup fuse.

Model No.	FLP50GR-275/4S
	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

The Type 1 Spark Gap Surge Protection Device FLP50GR-275/4S adopts a 4+0 TN-S circuit design, connecting L1, L2, L3, and N to PE. It safely discharges high-energy lightning surges through spark gap paths to ground.

Dimensions

The Type 1 Spark Gap Surge Protection Device FLP50GR-275/4S features a compact DIN 43880 housing with dimensions of 90×72×95.5 mm, ensuring easy DIN rail installation and space-efficient integration in panels.

Installation Instructions

The Type 1 Spark Gap Surge Protection FLP50GR-275/4S is designed for quick and secure installation on a 35mm DIN rail. Ensure all connections comply with national and local electrical codes. For detailed wiring diagrams and safety guidelines, please refer to the product manual.

Wiring Diagram & Installation

The Spark Gap Surge Protection Device FLP50GR-275/4S features a 4-pole TN-S wiring diagram with clear L1–L3, N, PE connections and DIN rail mounting for easy, safe installation.

Remote Signaling Terminal

The Spark Gap Surge Protection Device FLP50GR-275/4S includes a remote signaling terminal with green light for normal status and red light for fault indication, ensuring easy monitoring.

Documentation

The FLP50GR-275/4S is a Type 1 Spark Gap Surge Protection device engineered for lightning protection zones LPZ 0A-1. It boasts a powerful 50 kA (Iimp) discharge current with a 10/350 μs waveform, compatible with TN-S, TN-C, TT, and IT systems. Its compact, modular design ensures easy installation and maintenance.

Datasheet

Installation Instructions

Wiring Diagram