ABB Surge Protector AC OVR T2 4L 40-275 P QS, 4P

OVR T2 4L 40-275 P QS is a modular surge protector of class II designed to protect installations against transient overvoltages, including atmospheric impulses. The device is intended for use in TN-S systems, made in a 4-pole (4P) version with a plug-in design for mounting on a DIN rail.

The manufacturer: ABB — an international company specializing in energy solutions and automation. The product belongs to the ABB EcoSolutions line and has associated declarations and certificates (including EU declaration of conformity and CB certificate), confirming compliance with IEC/EN 61643-11 standards.

Electrical and Functional Parameters

• Nominal network voltage (Uo): 230 / 400 V AC
• Maximum continuous operating voltage (Uc, L-PE): 275 V
• Temporary overvoltage (UT): 337 V
• Nominal surge current (8/20 µs) (Inom): 20 kA
• Maximum surge current (8/20 µs) (Imax): 40 kA
• Impulse current (10/350 µs) Iimp: 2 kA
• Nominal disconnection current (Ics): 100 kA
• Voltage protection level (Up): (L-N) 1.1 kV; (N-PE) 1.25 kV
• Power loss: 29 mW
• Signal state transmission standard: Optic; status indicator: yes

Mechanical and Installation Parameters

• Number of poles / protected poles: 4P / 4
• Mounting version: Plug-in, mounting on DIN rail (DIN-Rail)
• Width: 71.2 mm (4 modules)
• Net height: 88 mm
• Net depth / length: 58 mm
• Net weight: 0.48 kg
• Protection degree: IP20
• Maximum installation height without derating: 5000 m above sea level
• Fuse size / space occupancy: 4 modular spacing