DESCRIPTION

R1.188.1860.0 is a device for monitoring of safety-related circuits, specifically the SNA4044K-A model rated for AC/DC 24V operation. It features single- or two-channel control with automatic reset without reset switch, cross-circuit monitoring, and 4 enabling current paths, complying with EN 81-20/50 for elevators and EN50156-1 for heaters. The device operates at 50-60 Hz with screw-terminals and pluggable connections, offering a protection degree of IP40 for the housing and IP20 for terminals, with an ambient temperature range of -25°C to 65°C. It achieves Performance Level e according to EN ISO 13849-1 and SIL 3 according to IEC 62061, making it suitable for monitoring magnetic switches, proximity switches, emergency-stop circuits, optoelectronic protection equipment, and position switches. The unit provides 4 safe undelayed outputs with normally open contacts rated at 230V AC and 24V DC, with a maximum thermal current of 8A and mechanical life of 107 switching cycles.