R-K Electronics, Inc. Protection Relays & Systems STRP-24D-B

The STRP is a panel-mounted seal and temperature status relay designed to monitor submersible pump motor seal integrity and temperature sensor resistance. It accepts supply voltages of 24VDC and features pluggable terminal blocks. The relay has two independent output contacts: one for seal fault (<330Ω) and one for temperature fault (>1,500Ω), rated at 10A at 120VAC and 5A at 277VAC. The 1-input mode uses fixed trip points of 330Ω and 1,500Ω. Operating temperature ranges from -40°C to 60°C, with display and buttons functional only above -20°C. Dimensions are 3.88" × 2.0" × 0.5". Weight is 1 pound.