Opto 22 Industrial-Mount AC Solid-State Relays (SSRs) feature a built-in snubber as well as zero-voltage turn-on and zero-current turn-off. These hermetically sealed relays use a unique heat-spreader technology, and the rugged, epoxy encapsulation construction is subjected to a full-load test and 6x rated current surge before and after encapsulation. The series also offers 4000V optical isolation, 120V and 240V load voltage ratings, and 10A to 45A load current ratings. The transient-proof models offer self-protection for noisy electrical environments. Opto 22 Industrial-Mount AC SSRs come with a lifetime warranty and UL, CSA, and UKCA approvals. These CE components operate in a -40°C to +100°C temperature range.