Phoenix Contact FLT-SEC-ZP2-3S-255/7.5 Type 1/2 Combined Surge Arrester

Protect three-phase power systems from lightning strikes and switching surges with the Phoenix Contact FLT-SEC-ZP2-3S-255/7.5, a Type 1/2 combined surge arrester delivering a nominal discharge current of 20 kA and impulse current of 7.5 kA per phase. Its low voltage protection level of ≤1.5 kV safeguards sensitive electronics, while thermal disconnect and remote signaling enable proactive maintenance.

Advantages

This arrester combines high discharge capacity with a low voltage protection level, ensuring robust defense for critical infrastructure. The integrated thermal disconnect and potential-free changeover contact allow for remote monitoring and quick response to fault conditions. DIN rail mounting and screw connections simplify installation, and compliance with IEC 61643-11 and EN 61643-11 guarantees reliability in demanding environments.

Suitable for

• Industrial control panels and machinery
• Commercial building power distribution
• Renewable energy systems (solar, wind)
• Telecommunications infrastructure
• Three-phase 230 V AC applications requiring Type 1/2 surge protection

Key specifications

• Arrester type: Type 1/2 combined arrester
• Nominal voltage: 230 V AC (50/60 Hz)
• Maximum continuous operating voltage: 255 V AC
• Nominal discharge current (8/20 µs): 20 kA
• Impulse current (10/350 µs): 7.5 kA per phase
• Voltage protection level: ≤ 1.5 kV
• Number of phases: 3-phase (3+1 circuit)
• Mounting: DIN rail
• Connection: Screw connection
• Degree of protection: IP20
• Operating temperature: -40 °C to 80 °C

Recommendations

For maximum protection, install this arrester as close as possible to the power entry point of your installation and ensure proper grounding. Regularly inspect the remote signaling contact to maintain system integrity.