Littelfuse, Inc. Monitor - Relay Output 102600

The 102600 is a three-phase voltage monitor designed for 475-600 V ac applications, featuring fixed low-voltage trip and restart delays of 4 and 2 seconds respectively. It uses a microcontroller-based circuit to detect phase reversal, voltage unbalance, and over- or under-voltage conditions, with LED diagnostics indicating fault types. The device operates from -40°C to 70°C, mounts with #8 screws, and has a SPDT relay output rated for 10 A at 240 V ac. It meets UL508, CSA 22.2 No. 14, and IEC 60947-6-2 standards. Dimensions are 74.4 mm H × 133.9 mm W × 74.9 mm D, and the unit weighs 1.05 lbs.