Banner Engineering Corp. Monitor - Relay Output SSM-FM-11A20

The SSM-FM-11A20 is a safe speed monitoring module designed for over-speed, under-speed, and zero-speed detection of rotating or linearly moving machinery. It operates on 24 V AC/DC and requires two independent 24 V PNP sensor inputs with a minimum current of 3 mA. The module has two normally open and one normally closed output contacts rated for 4 A at 230 V AC, with SIL Claimed Level 3 per EN 62061 and Performance Level e per DIN EN ISO 13849-1. It mounts on standard 35 mm DIN rail and has a 45 mm wide housing. Detection range is 10 to 20,000 impulses per minute, with an over-speed response time of 350 ms typical. It features dual-channel redundancy, LED status indicators, and automatic reset requiring a closed feedback input at power-up.