Banner Engineering ES-UA-5A Safety Relay Module

The Banner ES-UA-5A is a safety-relay module in Banner’s ES/GM series for E-stop, rope-pull, and interlock guard monitoring, with product number 66091. It accepts a universal AC/DC supply (115 VAC on A1–A2 or 12–24 V DC on B1–B2) and provides a single safety input channel configurable for 2 NC or 1 NC inputs, plus simultaneous or concurrent operation. The module delivers four normally open safety outputs rated to 6 A, an auxiliary normally closed output rated 5 A, and two solid-state outputs at 0.1 A, all housed in a 45 mm-wide removable-terminal-block package. Its dimensions are 84 x 45 x 118 mm, with IP20 protection, operating up to 50 C and humidity up to 90% at 50 C. Built-in self-checking circuitry supports auto or manual reset, with a recovery time of 350 ms and a typical response time of 25 ms. Electrical life is listed at 1,000,000 operations at 450 VA and mechanical life at 50 million cycles; the ES-UA-5A carries SIL 3 and PL e ratings and a PFHd of 5.8 x 10^-8. CE DoC certification is indicated for this device, making it suitable for emergency-stop circuits, guard monitoring, and interlock guard systems in industrial settings where reliable E-stop control is required.