This document describes the features and benefits of the 1SNK 161 012 D0201 1SNK 161 012 S0201 ZS4-S-R1 screw clamp terminal block, including two jumper channels aligned with ZS4 feed-through terminal blocks for simplified alternated distribution, and a disconnect blade operated by hand or with a screwdriver for ease of disconnect operations.
The ZS4‑S‑R1 is a screw‑clamp terminal block designed for 4 mm² (10 AWG) conductors. It features a hand‑operated disconnect blade and complies with IEC 60947‑1, UL 1059 and CSA‑C‑22.2 standards. The block is available in grey, blue and orange housing colors and includes optional accessories such as end stops, jumper bars and test adapters.
Technical data cover electrical ratings (400 V IEC, 150 V UL, 26 A rated current), mechanical specifications (IP20 protection, operating torque 0.6 Nm), and environmental performance (temperature range –55 °C to +110 °C storage, –5 °C to +40 °C operating). Material is polyamide with UL94‑VO flammability rating, and the product meets various climatic and corrosion test requirements.
| Rated voltage (IEC) | 400 V |
|---|---|
| Rated voltage (UL) | 150 V |
| Rated current | 26 A |
| Short‑time withstand current (1 s low) | 480 A |
| IP protection | IP20 |
| Insulating material | Polyamide |
| Flammability rating | UL94 VO |
| Operating temperature range | -5 °C to +40 °C |
The rated current is 26 A according to IEC 60947‑7‑1.
It has an IP20 protection rating.
It is rated for 400 V under IEC standards and 150 V under UL standards.