This document describes the screw clamp terminal blocks of the 1SNK 161 035 D0201 and 1SNK 161 035 S0201 models. The features include circuit protection with 5x25 and 5x20 fuses (fuses not included), compliance with the IEC 60947-7-3 standard, built-in test socket screws, and a blown fuse indicator with leakage current < 0.5 mA.
The ABB ZS4‑SF1‑R is a screw‑clamp terminal block designed for 4 mm fuse applications. It complies with IEC 60947‑7‑3, features a built‑in test socket, a blown‑fuse indicator, and offers both single and multi‑conductor connections.
The datasheet provides electrical ratings (250 V, 6.3 A, 480 A short‑time withstand), mechanical data (IP20, torque values), environmental test results, and a list of compatible accessories such as end stops, test plugs, and protecting covers.
| Rated voltage | 250 V (IEC 60947‑1) |
|---|---|
| Rated current | 6.3 A (IEC 60947‑7‑1) |
| Short‑time withstand current | 480 A (1 s low) |
| Protection rating | IP20 |
| Insulating material | Polyamide |
| Connecting capacity per clamp (rigid conductor) | 0.2‑4 mm² (24‑10 AWG) |
| Storage temperature range | -55 °C to +110 °C |
The terminal block is rated for 250 V according to IEC 60947‑1 (and 300 V per UL 1059).
It is rated for a continuous current of 6.3 A as specified in IEC 60947‑7‑1.
The storage temperature range is –55 °C to +110 °C.
The insulating material is polyamide.