Littelfuse, Inc. Monitor - Relay Output 201-200-SP

The 201-200-SP is an 8-pin octal-base, plug-in voltage monitor designed to protect single-phase motors operating at 190-240 V ac, 50/60 Hz. It features a microcontroller-based circuit that constantly monitors voltage and deactivates the SPDT output relay after a 4-second trip delay upon detecting harmful conditions, with a 2-second restart delay after power restoration. High voltage protection trips at 110% of setpoint and resets at 107%. The relay has a general purpose contact rating of 10 A at 240 V ac and requires the OT08PC socket for UL rating. It mounts on DIN rail or surface via the socket, measures 44.45 mm H × 60.325 mm W × 104.775 mm D with socket, and weighs 362.87 g. It operates from -40° to 70°C and includes transient protection up to 2500 V for 10 ms. It meets UL 508 standards with UL certification contingent on use of the OT08PC socket.