ZS4-S-R3 is a disconnect terminal block from DELIXI. It can be installed next to ZS4-SF1 fuse terminal blocks to simplify disconnect operations.
The ZS4-S-R3 is a screw‑clamp terminal block from ABB designed for easy hand operation and reliable disconnect functions. It features a 4 mm (10 AWG) disconnect spacing and complies with IEC and UL standards for voltage and current ratings.
Key specifications include a rated voltage of 500 V (IEC 60947‑1), rated current of 18 A (IEC 60947‑7‑1), and a maximum dissipated power of 0.58 W. The device is built with polyamide insulation, IP20 protection, and operates across a wide temperature range, with storage limits from –55 °C to +110 °C. Accessories such as end stops, protecting covers, and tools are listed with order codes.
| Rated voltage (IEC) | 500 V |
|---|---|
| Rated voltage (UL) | 300 V |
| Rated current | 18 A |
| Short‑time withstand current (1 s) | 480 A |
| Maximum dissipated power at rated current | 0.58 W |
| Insulating material | Polyamide |
| Protection rating | IP20 |
| Wire stripping length | 11 mm |
| Operating torque (tool) | 0.6 Nm |
| Storage temperature range | -55 °C to +110 °C |
The terminal block is rated for 500 V according to IEC 60947‑1 (and 300 V per UL 1059).
The rated continuous current is 18 A as specified in IEC 60947‑7‑1.
It can be stored from –55 °C up to +110 °C.
The insulating material is polyamide.