Surge protective devices of the RSP-E12.5-11 series
Surge protective devices of the RSP-E12.5-11 series
AC surge protective device for AC installations, rated voltage 230 V AC. Plug-in design, Class I+II (T1+T2), number of poles: 2.
Technical info
For L–N: impulse current (Iimp) 25 kA (10/350 µs), maximum discharge current (Imax) 100 kA, nominal discharge current 25 kA.
For N–PE: impulse current (Iimp) 50 kA (10/350 µs), maximum discharge current (Imax) 100 kA, nominal discharge current 50 kA.
For single-phase network 1+1, (Uc) 275 V AC.
Protection: MOV varistor for L–N, GDT for N–PE.
The device is equipped with a potential-free contact for remote fault indication.
Width: 36 mm per pole.
• Class I+II / Type 1+2 / B+C surge protective device in accordance with IEC/EN 61643-11.
• Two-pole SPD (1+1 circuit) for use in single-phase installations.
• Plug-in module (18 mm) allowing easy replacement without dismantling the entire device.
• Thermal disconnector ensures fast thermal response and safe disconnection.
• Lightning impulse current up to 12.5 kA (10/350 µs) for L–N, 25 kA (10/350 µs) for N–PE.
• Surge current up to 80 kA (8/20 µs) for L–N, 50 kA (8/20 µs) for N–PE.
• Protection against low voltage conditions.
• High short-circuit current up to 50 kA rms, suitable for use in most AC power supply systems.
• Fault indication due to degradation and optional remote signaling contact.
• Wide operating temperature range: −40°C to +85°C.
• Mounting on 35 mm DIN rail.
Electrical parameters
| Maximum continuous operating voltage Uc |
L-N / N-PE 275 V AC/ 255VAC |
| Nominal discharge current (8/20 μs) In |
L-N / N-PE 25 kA/25 kA |
| Maximum discharge current (8/20 μs) Imax |
L-N / N-PE 80 kA/ 50 kA |
| Protection level Up |
L-N / N-PE 1,2 kV/ 1,5 kV |
| Response time |
L-N / N-PE ≤ 25 ns / ≤100 ns |
| Back-up protection |
≤ 250 A gL/gG |