Surge protective devices of the RSP-E12.5-40
Surge protective devices of the RSP-E12.5-40
AC surge protective device for AC installations, rated voltage 230 V AC. Plug-in design, Class I+II (T1+T2), number of poles: 4.
Technical info
Maximum discharge current (Imax) 50 kA (8/20 µs).
Impulse current (Iimp) 7.5 kA (10/350 µs), nominal discharge current 20 kA.
For three-phase network “4+0”, Uc 275 V AC.
MOV technology with a potential-free contact for remote fault indication.
• Class I+II / Type 1+2 surge protective device in accordance with IEC/EN 61643-11.
• Three-pole SPD (4+0 circuit) for use in three-phase systems.
• 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).
• Surge current up to 80 kA (8/20 µs).
• 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 from −40°C to +85°C.
• Mounting on 35 mm DIN rail.
Electrical parameters
| Maximum continuous operating voltage Uc |
275 V AC |
| Nominal discharge current (8/20 μs) In |
25 kA |
| Maximum discharge current (8/20 μs) Imax |
80 kA |
| Protection level Up |
1,2 kV |
| Response time |
≤ 25 ns |
| Back-up protection |
≤315 A gL/gG |