SP7 Series intelligent surge protective devices protect AC distribution and control cabinets from transient overvoltage. SP7 covers class II surge protection modules in multiple pole arrangements, while SP7ZN adds intelligent surge-protection options with class I or class II configurations.
Common Parameters
| Parameter | Specification |
|---|
| Rated Working Voltage | 230V / 400V |
| Protection Level | IP20 |
| Leakage Current | Less than 20uA at 75% Uc 1mA |
| Installation Method | 35mm standard rail |
SP7
| Parameter | Specification |
|---|
| Test Classification | Class II |
| Nominal Discharge Current In (8/20us) | 40kA, 50kA, 60kA, 100kA |
| Maximum Discharge Current Imax (8/20us) | 80kA, 100kA, 120kA, 160kA |
| Maximum Continuous Operating Voltage | 385V or 420V |
| Protection Level Up | Less than 2.4kV to less than 3.5kV by rating |
| Recommended Fuse or Circuit Breaker | 50A, 63A or 100A |
| Phase / Poles | 1P, 2P, 3P, 4P |
| Dimensions | 90 x 36 x 64 mm, 90 x 72 x 64 mm, 90 x 108 x 64 mm or 90 x 144 x 64 mm by pole count |
SP7ZN
| Parameter | Specification |
|---|
| Test Classification | Class I or Class II |
| Nominal Discharge Current In (8/20us) | 20kA, 40kA or 60kA |
| Maximum Discharge Current Imax (8/20us) | 40kA, 80kA or 120kA |
| Impulse Discharge Current Iimp (10/350us) | 15kA for class I version |
| Maximum Continuous Operating Voltage | 275V, 320V, 385V or 440V |
| Protection Level Up | Less than 1.8kV to less than 2.5kV by rating |
| Recommended Fuse or Circuit Breaker | 10A-100A |
| Phase / Poles | 2P, 3P, 4P |
| Dimensions | 96 x 90 x 68 mm for 2P; 144 x 90 x 68 mm for 3P/4P |
