Rhomberg 3-Phase Sequence/Failure/Asymmetry Relays

Rhomberg three phase monitors, are used to monitor 3 phase power supplies (plus Neutral in some applications), and switch a relay contact if any fault occurs on the supply, primarily used for the protection of equipment connected to that power supply. (Available in 11-pin plug-in or DIN rail format)

Rhomberg Current Relays/Monitors (AC & DC) Single Phase

Rhomberg current monitors, are used to monitor AC or DC current, and switch a relay contact at a pre-determined level, primarily used for overcurrent or undercurrent protection. (Available in 11-pin plug-in or DIN rail format)

Rhomberg Voltage Monitors (AC & DC) and Frequency Relays

Rhomberg voltage monitors, are used to monitor AC or DC voltage, and switch a relay contact at a pre-determined level, primarily used for overvoltage or undervoltage protection. (Available in 11-pin plug-in or DIN rail format)

Rhomberg Motor/Pump Protection Relays

Rhomberg Pump Protection Relays are actually motor protection relays designed for pump applications. Primarily used for submersible (borehole) pump protection, they protect the pump against running dry, jamming of motor, closed valve or no-flow (centrifugal pumps), overcurrent, incorrect phase sequence, phase failure, over and under voltage. They are microprocessor based and are calibrated at the push of a button. (Available in DIN rail format only).

Rhomberg Control Relays

Rhomberg control relays cover various control functions such as contact switching for proximity & photo-electric sensors, speed monitoring and control, thermistor motor protection, and flip flop control. A small range of power supply relays are included in this range. (Available in 11-pin plug-in and/or DIN rail format).