This datasheet provides detailed information about ZS4-SP, including specifications, dimensions, performance and connection capacities.
The ZS4-SP screw clamp terminal block from ABB provides a screwless component holder plug with the same profile as the ZS4 feed‑through block, allowing aligned marking and interchangeable end sections. It is designed for both rigid and flexible conductors, offering multiple connecting capacities per clamp.
Key specifications include a rated voltage of 400 V (IEC 60947‑1), rated current of 20 A, IP20 protection, and operation within –5 °C to +40 °C (installation). The datasheet also lists environmental test results, torque requirements, and a full range of compatible accessories such as end stops, circuit separators, and protecting covers.
| Rated voltage | 400 V (IEC 60947‑1) |
|---|---|
| Rated current | 20 A |
| Rated short‑time withstand current (1 s low) | 480 A |
| Insulating material | Polyamide |
| Protection rating | IP20 |
| Torque for screw clamp | 0.6 Nm |
| Maximum dissipated power | 0.6 W |
| Operating temperature range (installation) | -5 °C to +40 °C |
The terminal block is rated for 400 V according to IEC 60947‑1 (and 150 V under UL 1059).
It is rated for a continuous current of 20 A as specified in IEC 60947‑7‑1.
A torque of 0.6 Nm (approximately 5.37 in‑lb) is recommended.
The device can be installed between –5 °C and +40 °C, and stored from –55 °C to +110 °C.