ETI ETITEC C T2 275/20 3+1 prepäťová ochrana Typ 2, 275 V AC, 4-polová 002440403

The ETI ETITEC C T2 275/20 3+1 stands out with its 3+1 configuration, providing dedicated protection for 3-phase systems with neutral, a feature not always found in standard Type 2 SPDs. This design ensures balanced protection across all lines and neutral, reducing the risk of damaging overvoltages in industrial and commercial installations.

Highlights

• Type 2 surge protection according to EN 61643-11
• Maximum continuous operating voltage Uc: 275 V AC
• Nominal discharge current (8/20 µs): 20 kA, maximum 40 kA
• Voltage protection level Up: < 1.5 kV
• Visual status indicator (green/red) for quick function check
• DIN rail mounting, 4 TE width

In daily use

Installed at the sub-distribution board, the ETITEC C T2 275/20 3+1 diverts surge currents safely to ground, protecting downstream equipment. Its compact 4-module width fits standard distribution panels, and the clear status window allows maintenance personnel to verify operation at a glance. The metal oxide varistor technology ensures fast response and long service life.

Full specifications

• Product type: Surge Protective Device (SPD)
• SPD type: Type 2
• Maximum continuous operating voltage (Uc): 275 V AC
• Nominal discharge current (In): 20 kA (8/20 µs)
• Maximum discharge current (Imax): 40 kA (8/20 µs)
• Voltage protection level (Up): < 1.5 kV
• Protection configuration: 3+1 (3-phase + neutral)
• Number of poles: 4
• Mounting type: DIN rail (35 mm)
• Technology: Metal oxide varistor (MOV)
• Indication: Visual status indicator (green/red)
• Response time: < 25 ns
• Degree of protection: IP20
• Standards: EN 61643-11 / IEC 61643-11
• Short-circuit withstand capability (Isccr): 50 kA
• Cross-sectional area (solid): 1.5 - 35 mm²
• Cross-sectional area (flexible): 1.5 - 25 mm²
• Operating temperature range: -40°C to +80°C
• Housing material: Thermoplastic, UL94 V-0
• Modular width: 4 TE (72 mm)

Final note

For reliable surge protection in 3-phase systems, the ETITEC C T2 275/20 3+1 offers a proven solution with clear status indication and robust construction.