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Miniature interface relays available as SPCO and only with DC coils. The RTB74 is a special sensitive coil version of the RTB14 relay, the RTB74 has a much higher coil resistance and hence a lower coil consumption. This makes the RTB74 relay ideal for use on converting BMS and PLC analogue output voltage signals to digital outputs when there is only limited power behind the signal. In particular the 12VDC version is used extensively with the 0-10VDC output signal from "Trend Building Management Systems".
Other applications include converting transistor outputs to digital or when utilising a power supply and overall power consumption has to be kept within limits. The RTB74 relay can be PCB mounted or be used with a Din rail socket, however it is not recommended that the plug in LED modules are utilised if the relays have been selected because of the low coil consumption, using the LED module will of course increase the overall current consumption.
Trend Low Coil Consumption Relays