SPD 3P N Surge Protector For Three-Phase Power Safety
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SPD 3P N Surge Protector -BT P BCM 25 RM/3+N-S
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SPD 3P N Surge Protector -BT P BCM 25 RM/3+N-S

SPD 3P N Surge Protector BT P BCM 25 RM/3+N-S（800899）is for installation at LPZ 0A-1 or higher zones, protecting low voltage equipment against lightning and surge damages and remote terminal is optional. Specially designed for three phase AC TT/TN-S system (“3+1”circuit). Applied in SPD Class Ⅰ+Class II (Class B+Class C) for various power supply system of lightning current surge protection. Designed according to IEC 61643-11; EN 61643-11; GB/T 18802.11.

  • Type

    BT P BCM 25 RM/3+N-S

  • Art.-No.

    800899

  • Features

    1. Three-phase protection for TT/TN-S system ( “3+1” circuit).
    2. Adopt hermetical High Energy Gas Discharge Tube(GDT) technology, high follow current extinguishing capability.
    3. Extremely low voltage protection level.
    4. Double thermal disconnection device , provide more reliable protection.
    5. Multifunctional connection for conductors and busbars.
    6. Green window will change to red when fault occurs, also provide remote alarm terminal at the same time.
    7. Suitable for use in three phase 380V/400V/415V AC 50/60 Hz systems.
    8. Mode of protection:L-N;N-PE.
    9. Crafted from selected flame-retardant enclosure and Utilizing advanced European technology to ensure complete and reliable safeguarding of electrical equipment.

Inquiry
Download Datasheet
spd 3p n surge protector
Surge Protector
Surge Ratings:
In=50kA/100kA(8/20μs)
Mode of protection:
L-N/N-PE
Modules:
3P+N System：Three Phase TT/TN-S
Protection Elements:
High Energy GDT
High Surge Currents:
limp=25kA/100kA(10/350μs), Imax=100kA/140kA(8/20μs)

SPD 3P N Surge Protector is designed for surge management in three-phase electrical systems with neutral protection, helping reduce the impact of transient overvoltage caused by lightning, switching operations, or unstable grid conditions. Installed in distribution panels, it supports balanced surge protection across multiple power lines while helping maintain stable electrical performance. By limiting voltage disturbances before they affect connected systems, SPD 3P N Surge Protector contributes to improved operational reliability and reduced electrical stress. It is suitable for industrial, commercial, and infrastructure power systems requiring structured three-phase surge protection.

Features

1. Three-Phase and Neutral Line Protection: Designed to provide coordinated surge protection across three-phase electrical systems with dedicated neutral line support.
2. Balanced Multi-Line Surge Management: Helps maintain stable electrical conditions by reducing surge impact across multiple power channels simultaneously.
3. Fast Response to Transient Overvoltage: Quickly reacts to surge events caused by lightning activity, grid switching, or sudden electrical fluctuations.
4. Distribution Panel Integration: Suitable for structured installation within electrical cabinets and three-phase distribution systems.
5. Continuous Protection Performance: Operates automatically during daily electrical activity without requiring manual adjustment.
Surge Protective Device

Advantages

1. Improved Stability of Three-Phase Systems: Supports more balanced electrical operation across multiple power phases.
2. Reduced Electrical Stress on Equipment: Helps limit surge-related stress affecting motors, drives, and control systems.
3. Better Neutral Line Protection: Provides additional surge control for systems sensitive to neutral disturbances.
4. Lower Risk of Unexpected Electrical Failure: Reduces disruptions caused by transient voltage events.
5. Enhanced Power Distribution Reliability: Supports safer and more consistent electrical performance.
6. Simplified Surge Coordination: Allows organized surge management inside distribution cabinets.
Surge Protection Device

Applications

1. Industrial Three-Phase Power Systems: Supports surge protection for production lines, machinery, and heavy electrical equipment.
2. Commercial Distribution Cabinets: Suitable for office buildings, shopping centers, and large commercial facilities.
3. Electrical Infrastructure Projects: Applied in transportation, utilities, and infrastructure electrical systems.
4. Motor and Drive Systems: Protects electrical motors and drive equipment operating under three-phase power.
5. Renewable Energy Distribution: Supports stable electrical performance in solar and energy storage systems.
6. Automation and Control Systems: Helps maintain reliable operation for industrial automation equipment.
Surge Protection

Technical Data

Product Showcase

Surge Arrester
BT P BCM 25 RM/3+N-S
BT P BCM 25 RM/3+N-S Dimension
Dimension
BT P BCM 25 RM/3+N-S Circuit
Circuit

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