ABN Combined Arrester ZP T1 T2 T3 7.5kA TT/TN-S

The ABN Combined Arrester ZP T1 T2 T3 7.5kA TT/TN-S is a high-performance surge protection device designed to safeguard electrical installations against transient overvoltages. Combining Type 1, Type 2, and Type 3 protection in a single unit, it offers comprehensive protection for low-voltage power distribution systems in TT and TN-S earthing configurations.

Advantages

This combined arrester simplifies installation by integrating three protection stages into one compact device, saving space on the DIN rail. It features a high impulse current rating of 7.5 kA (10/350 µs) for L-N and 25 kA for N-PE, ensuring robust protection against direct lightning strikes. The visual status indicator (green/red) allows for easy monitoring of operational status.

Suitable for

• Residential and commercial electrical panels
• Industrial power distribution systems
• Telecommunications and data center installations
• Any TT or TN-S earthed system requiring surge protection

Key specifications

• SPD Type: Combined Arrester (Type 1+2+3)
• Earthing System: TT, TN-S
• Nominal Voltage (Un): 230/400 V AC
• Max. Continuous Operating Voltage (Uc): 255 V AC
• Impulse Current (Iimp) (10/350 µs): 7.5 kA (L-N), 25 kA (N-PE)
• Nominal Discharge Current (In) (8/20 µs): 20 kA (L-N), 20 kA (N-PE)
• Voltage Protection Level (Up): ≤ 1.5 kV
• Short-Circuit Withstand Capability (Isccr): 25 kA
• Number of Poles: 4 (3P+N)
• Mounting: DIN Rail (4 modules)
• Connection Cross-Section (Rigid): 1.5 - 35 mm²
• Connection Cross-Section (Flexible): 1.5 - 25 mm²
• Operating Temperature: -25 to +60 °C
• Degree of Protection: IP20
• Standards: EN 61643-11

Recommendations

For optimal protection, install this arrester at the main distribution board. Ensure proper earthing and bonding according to local regulations. Regularly check the status indicator to confirm operational readiness.