Littelfuse, Inc. SYMC Protection Relays 201-200-DPDT

The 201-200-DPDT is an 11-pin octal base, plug-in voltage monitor for 190-240 V ac, 50/60 Hz three-phase motors, protecting against low voltage and phase unbalance. It has two isolated Form C relays rated at 10 A at 240 V ac and 480 VA pilot duty. Trip delay is 4 seconds for low voltage and 2 seconds for unbalance or phase loss; restart delay is 2 seconds. LED diagnostics indicate relay status. It operates from -40° to 70 °C, measures 44.45 mm × 60.33 mm × 104.78 mm, and weighs 0.65 lb. Mounting requires the OT11PC socket. The unit meets UL 508 and IEC 61000-4-2 Level 3 ESD, IEC 61000-4-4 Level 3 transient burst, and 150 MHz, 10 V/m radiated RF immunity standards.