Product Description:
Adopting Class Ⅰ SPD, it has hermetical GTD technology to combine “1+1” circuit, applied in TT system, generally installing in main distribution panel or cabinet, designed according to IEC61643-1/GB 18802.1

Main character:
1. Green light indicates normal and red light indicates fault for operation
2. Built-in circuit breaker, prewired with SPD, easy for installation 
3. Can inspect the SPD operation windows, suitable for indoor application
3. Impulse counter function, recording the lightning events
4. External wiring terminal, easy for connection

Parameters:

• Type: BT 5L BCM 255/50 1+1
• Order No.: 840 864
• Nominal a.c voltage (UN): 230V/400V
• Rated voltage (max. continuous a.c voltage) L/N Uc: 255V
• Lightning impulse current (10/350) (L1+L2+L3+N-PE) Iimp: 50KA
• Lightning impulse current (10/350) (L-N) Iimp: 25KA
• Lightning impulse current (10/350) (N-PE) Iimp: 50KA
• Nominal discharge current (8/20) In: 50KA
• Max. discharge current (8/20) Imax: 75KA
• Voltage protection level L/N Up: ≤1.5KV
• Voltage protection level N/PE Up: ≤1.5KV
• Follow current extinguishing capability at Uc (L/N): 32A fuse will not be triggered at 2KArms.
• Follow current extinguishing capability at Uc (N/PE): 100Arms.
• Operating temperature range: -40℃…+80℃
• Cross-sectional area: 35mm2 solid/50mm2 flexible
• Enclosure material: Black metal housing (die-casting Aluminum)
• Test standards: YD/T 1235.1; GB 18802.1; IEC 61643-1
• Certification: CE (LVD, EMC)