This document is the technical data sheet of ZS4-S-R2 disconnect terminal block. It mainly introduces the features and advantages of this product, such as easy disconnect operation and simple installation.
The ABB ZS4-S-R2 is a screw‑clamp terminal block designed for disconnect applications. It shares the same profile as the ZS4‑SF series, allowing easy hand operation and simplified wiring of alternate disconnect and fuse circuits. The datasheet provides ordering codes, dimensions, and key features such as a 6 mm spacing and a 4 mm² (10 AWG) rated cross‑section.
Detailed specifications include electrical ratings (22 A rated current, 480 A short‑time withstand), voltage limits (400 V IEC, 150 V UL), mechanical torque (0.6 Nm), and extensive environmental compliance (IP20, IEC 60068 climatic tests). Accessories such as end stops, jumper bars, and test adapters are also listed.
| Rated voltage (IEC) | 400 V |
|---|---|
| Rated voltage (UL) | 150 V |
| Rated current | 22 A |
| Short‑time withstand current (1 s) | 480 A |
| Rated cross‑section | 4 mm² (10 AWG) |
| Insulating material | Polyamide |
| Flammability rating | UL94 VO |
| Protection rating | IP20 |
| Operating torque | 0.6 Nm (5.31 lb·in) |
| Operating temperature range | -5 °C to +40 °C |
The terminal block is rated for a continuous current of 22 A.
It can withstand a short‑time current of 480 A for 1 second.
A torque of 0.6 Nm (approximately 5.31 lb·in) is recommended.