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

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

Main Features:

Location of Use: Main Distribution Boards

Network Systems: TN-S, TT

Mode of Protection: L-N, 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-275/3S+1 offers 50kA (10/350μs) & 100kA (8/20μs) surge ratings for three-phase systems (L1, L2, L3, PE terminals). Compliant with IEC 61643-11:2011 & EN 61643-11:2012 standards, it operates in -40°C to +70°C and handles 95% humidity.

Model No.	FLP50GR-275/3S+1
	Nominal AC Voltage (50/60 Hz) U_o / U_n	230V
	Maximum Continuous Operating Voltage (L-N) U_C / (N-PE) U_C	275V
	Nominal Discharge Current (8/20 μs) (L-N) / (N-PE) I_n	50 kA / 100 kA
	Maximum Discharge Current (8/20 μs) (L-N) / (N-PE) I_max	100 kA
	Impulse Discharge Current (10/350 μs) (L-N) / (N-PE) I_imp	50 kA / 100 kA
	Specific Energy (L-N) / (N-PE) W/R	156.5 kJ/Ω / 2.5 MJ/Ω
	Voltage Protection Level (L-N) / (N-PE) U_p	1.8 kV / 1.5 kV
	Follow Current Interrupt Rating (N-PE) I_fi	50 A_RMS / 100 A_RMS
	Max. Backup Fuse	500 A gL / gG
	Short-Circuit Current Rating (AC) (L-N) I_SCCR	10 kA
	TOV Withstand 5 s (L-N) U_T	335 V
	TOV 120 min (L-N) U_T	530 V
TOV Withstand 200 ms (N-PE) U_T	1200 V
Number of Ports	1

Basic Circuit Diagram

Type 1 Spark Gap Surge Protection FLP50GR-275/3S+1 is designed for three-phase TN-S/TT systems (3+1 configuration), providing L-N and N-PE protection. It features a built-in spark gap, remote signaling contacts, and complies with IEC 61643-11.

Dimensions

Type 1 Spark Gap Surge Protection FLP50GR-275/3S+1 has a compact monobloc design. The unit’s dimensions are 144 mm wide, 65 mm deep, and 95.5 mm high. It mounts on a 35 mm DIN rail in compliance with EN 60715.

Installation Instructions

Mount FLP50GR-275/3S+1 Type 1 Spark Gap Surge Protection near protected equipment. Connect line (L), neutral (N) & PE terminals securely. Ensure upstream overcurrent protection. Disconnect power before installation. Follow local codes. Only qualified personnel.

Wiring Diagram & Installation

The Spark Gap Surge Protection Device is DIN rail mountable. For TN-S/TT systems, use standard parallel wiring with connection leads <50cm for optimal lightning current discharge.

Remote Signaling Terminal

The integrated Remote Signaling Terminal provides real-time status monitoring for the Spark Gap Surge Protection Device. NO/NC contacts are available for remote alarming and centralized control.

Documentation

The Type 1 Spark Gap Surge Protection FLP50GR-275/3S+1 is certified per IEC/EN 61643-11. Comprehensive documentation includes detailed installation manual, technical datasheet, and declaration of conformity for project compliance.

Datasheet

Installation Instructions

Wiring Diagram