Type 1 Spark Gap Surge Protection Device FLP50GR-275/2S

Main Features:

  • Location of Use: Main Distribution Boards

  • Network Systems: TN-S

  • Mode of Protection: L-PE, N-PE

  • Surge Ratings: Iimp = 50 kA (10/350 μs), In = 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
  • Main Specification

    Type 1 Spark Gap Surge Protection Device FLP50GR-275/2S features Iimp 50kA (10/350µs), Uc 275V, Up 1.8kV. Designed for TN-S systems (single-phase L-N+PE mode) with 500A backup fuse and remote signaling. IEC 61643-11 certified.

    Model No.FLP50GR-275/2S
    Nominal AC Voltage (50/60 Hz) Uo / Un230V
    Maximum Continuous Operating Voltage (AC) UC275V
    Nominal Discharge Current (8/20 μs) In50 kA
    Maximum Discharge Current (8/20 μs) Imax100 kA
    Impulse Discharge Current (10/350 μs) Iimp50 kA
    Specific Energy W/R156.5 kJ/Ω
    Voltage Protection Level Up1800 V
    Max. Backup Fuse500 A gL / gG
    Short-Circuit Current Rating (AC) ISCCR10 kA
    TOV Withstand 5 s UT335 V
    TOV 120 min UT530 V
    Number of Ports1

    Basic Circuit Diagram

    The Type 1 Spark Gap Surge Protection Device FLP50GR-275/2S uses a 2+0 TN-S circuit design, connecting L and N conductors to PE. It safely diverts lightning surges through spark gap discharge paths to the ground.

    Dimensions

    The Type 1 Spark Gap Surge Protection Device FLP50GR-275/2S features a DIN 43880 standard housing with dimensions of 90×72×95.5 mm, designed for compact DIN rail installation in power distribution systems.

    Installation Instructions

    Install the Type 1 Spark Gap Surge Protection Device FLP50GR-275/2S on a 35 mm DIN rail (clip-on type). Ensure proper connection to the main earthing bar. The minimum conductor cross-section for live/neutral wires is 6-35 mm², and for the earth wire is 16-35 mm². Tighten terminals with a torque of 3.5-4.0 Nm.

    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

    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

    Type 1 Spark Gap Surge Protection Device FLP50GR-275/2S is certified per IEC/EN 61643-11. Complete documentation includes installation manual, technical datasheet, and CE Declaration of Conformity for project compliance.

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