Phoenix Contact FLT-SEC-ZP2-3C-255/12.5 Combined Arrester Type 1/2, 3-Phase + N-PE, 255 V AC, DIN Rail 1168946

The Phoenix Contact FLT-SEC-ZP2-3C-255/12.5 is a combined lightning and surge arrester classified as Type 1/2 according to IEC and EN standards. It is engineered for three-phase power systems with a nominal voltage of 230/400 V AC and a maximum continuous operating voltage of 255 V AC. This model stands out with its high discharge capacity: a lightning impulse current of 12.5 kA per pole (10/350 µs) and a total of 50 kA, plus a nominal discharge current of 20 kA per pole (8/20 µs). The voltage protection level is ≤ 1.5 kV, and response time is ≤ 100 ns. Designed for DIN rail mounting, it features screw connections and an optical mechanical status indicator. The unit has 4 positions and operates within -40 °C to 80 °C.

Highlights

• Combined Type 1/2 arrester for 3-phase + N-PE systems
• High lightning impulse current: 12.5 kA per pole (10/350 µs)
• Low voltage protection level ≤ 1.5 kV
• Fast response ≤ 100 ns
• Optical mechanical status indicator
• DIN rail mounting with screw connections

In daily use

This arrester protects electrical installations from transient overvoltages caused by lightning strikes or switching operations. Its robust design and clear status indication make it suitable for industrial and commercial applications where reliable surge protection is critical.

Full specifications

• Product type: Combined arrester
• IEC test classification: Type 1 / Type 2
• EN type: T1 / T2
• Nominal voltage (U_N): 230/400 V AC
• Max. continuous operating voltage (U_C): 255 V AC
• Nominal frequency: 50 Hz / 60 Hz
• Lightning impulse current (I_imp) per pole: 12.5 kA (10/350 µs)
• Total lightning impulse current (I_imp): 50 kA (10/350 µs)
• Nominal discharge current (I_n) per pole: 20 kA (8/20 µs)
• Total nominal discharge current (I_n): 80 kA (8/20 µs)
• Voltage protection level (U_p): ≤ 1.5 kV
• Response time (t_A): ≤ 100 ns
• Protective circuit: 3-phase + N-PE
• Connection method: Screw connection
• Mounting type: DIN rail (35 mm)
• Degree of protection: IP20
• Operating temperature range: -40 °C to 80 °C
• Status indicator: Optical, mechanical
• Number of positions: 4

Final note

Trusted protection for critical three-phase power systems, combining high discharge capacity with fast response and clear status indication.