Product Features of the AC Surge Protector
The ETU5-T2-60 AC surge protector is designed for surge protection in low-voltage power distribution systems, defending against lightning-induced surges and switching overvoltages in building and industrial distribution applications. As a dependable ac power surge protector, it combines high discharge capacity with simple, safe maintenance.
- Type 2 / Class II Protection: Nominal discharge current In 30kA and maximum discharge current Imax 60kA (8/20μs), L-N and N-PE.
- Multi-System Compatibility: Supports TN-S, TN-C and TT network systems in 1P, 2P, 3P, 4P, 1P+NPE and 3P+NPE configurations.
- Keyed N-PE Module Design: Helps prevent incorrect replacement while improving installation safety and maintenance convenience.
- Pluggable Cartridge: Replace a worn module without removing the base or rewiring.
- Visual Status Indication: Green window = operating normally; red = defect (L-N). Yellow window identifies the N-PE module.
- Optional Remote Signaling: Potential-free contact (RC) reports module disconnection to a monitoring system – select the “S” version.
- High Energy Protective Elements: High Energy MOV (L-N); High Energy MOV and GDT on 1P+NPE and 3P+NPE types. Response time ≤25ns (L-N) / ≤100ns (N-PE).
- Uniform Panel Layout: Appearance and mounting dimensions are consistent with T Series devices, allowing side-by-side installation on a 35mm DIN rail (EN 60715).
- Robust Enclosure: Thermoplastic housing rated UL94-V0, IP20 (built-in), operating range -40°C to +80°C.
Type Designation Guide
Example: ETU5-T2-60-2P275S
| No. | Code | Meaning |
| 1 | E | ETEK |
| 2 | T | T series |
| 3 | U5 | SPD series No.5 |
| 4 | T2 | Class II / Type 2 |
| 5 | 60 | Imax: 60kA |
| 6 | 2P | No. of poles: 1P; 2P; 3P; 4P; 1PN (1P+NPE); 3PN (3P+NPE) |
| 7 | 275 | Uc: 150 (150V); 275 (275V); 320 (320V); 385 (385V) |
| 8 | S | With remote signaling |
