ABB ST201M-C1.6 Industrial Safety Relay Module

ABB ST201M-C1.6 is a single-pole miniature circuit breaker (MCB) with a nominal current rating of 1.6 A and a 230 V AC operating voltage, designed to protect single‑phase circuits in industrial control panels. It’s UL 1077 listed and part of ABB’s ST200M family, offering a rated ultimate short‑circuit current (Icu) of 15 kA at 230 V AC and a rated conditional short‑circuit current (Inc) of 11.2 kA at 230 V AC, enabling robust overcurrent protection with predictable tripping behavior. The device is a 1‑pole, C‑curve breaker, configured with double‑clamp terminals that accept 25 mm² flexible or 35 mm² rigid conductors. Its operating temperature range spans -25 to +55 °C and it carries IP20 protection, making it suitable for indoor panel installations. The ST201M-C1.6 uses a compact 17.5 mm width per pole, enabling multiple units to fit in standard modular enclosures. In ABB’s low‑voltage protection lineup, this model provides precise, UL 1077‑rated protection for circuits where a 1.6 A setting is appropriate, helping to guard control circuits from overcurrent without unnecessary tripping in normal operation.