Pump seal failure relays monitor shaft seals of submersible pumps using a probe provided by the pump manufacturer. These 120 VAC relays include an LED fault indicator and are available for single or two-pump monitoring. The 8-pin socket required for these relays can be panel or 35mm DIN rail mounted.
PSFR relays are designed to monitor the shaft seals of submersible pumps. The relay output can be used to give an alarm indication of a leaking seal. The relay will automatically reset when the fault condition clears.
PSFR series relays start at