Hager TG029 type 2 overspanningsbeveiliging, 2-polig, 230 V AC, 20 kA, DIN-rail

Type 2 surge protective device (SPD) with 2 poles, designed to protect electrical installations from transient overvoltages. Its varistor technology offers a nominal discharge current of 20 kA (8/20 µs) and a maximum discharge current of 40 kA, limiting voltage spikes to ≤ 1.5 kV. The device operates at 230 V AC with a maximum continuous voltage of 275 V AC and provides protection modes L-N and N-PE. It features an integrated thermal disconnector and visual status indication via a green/red flag. Mounting is on a 35 mm DIN rail, occupying 2 modules (36 mm width). The SPD has an IP20 degree of protection and an operating temperature range of -25 to 70 °C. Connection capacity: rigid 1.5–35 mm², flexible 1.5–25 mm². Complies with EN 61643-11 and has a short-circuit withstand capability of 50 kA with appropriate upstream protection.

Advantages

High discharge capacity and low voltage protection level ensure reliable protection for sensitive equipment. The integrated thermal disconnector and clear visual indicator simplify maintenance and enhance safety. Compact 2-module design saves space in distribution boards.

Suitable for

• Protection of low-voltage electrical installations against surges caused by lightning or switching operations.
• Use in residential, commercial, and industrial distribution boards where Type 2 SPDs are required.
• Installations with TN-S, TN-C-S, or TT earthing systems (L-N and N-PE protection).

Key specifications

• Device type: Type 2 SPD
• Number of poles: 2
• 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
• Nominal operating voltage (Un): 230 V AC
• Maximum continuous operating voltage (Uc): 275 V AC
• Protection modes: L-N, N-PE
• Technology: Varistor (MOV)
• Mounting: DIN rail 35 mm
• Module width: 2 modules (36 mm)
• Status indication: visual (green/red flag)
• Degree of protection: IP20
• Operating temperature range: -25 to 70 °C
• Connection capacity: rigid 1.5–35 mm², flexible 1.5–25 mm²
• Standards: EN 61643-11
• Short-circuit withstand capability: 50 kA
• Integrated thermal disconnector

Recommendations

For optimal protection, install the SPD as close as possible to the incoming supply and ensure proper coordination with upstream overcurrent protection. Verify that the earthing system is compatible with L-N and N-PE protection modes.