Power relays trio bring low power benefit

14th February 2023
Mick Elliott

OMRON has launched PWM coil controlled versions of three of its most popular power relays.

All three relays offer coil power levels 75-90% lower than comparable standard DC coil versions and support pulse width modulation (PWM) of the coil holding current.

This allows designers to reduce the duty cycle of the coil voltage and therefore lower average current.

Efficiency of the relays is greatly improved, due to the decrease in coil power consumption and associated heat that is generated. This in turn reduces the thermal load, especially in banked relay applications, and increases reliability.

There are three new PWM Coil Controlled Relays: First up is the high capacity, low profile 16A rated G2RL-PW1, this relay is ideal for miniature equipment, offering a coil power consumption of 100mW combined with a low profile of just 15.7mm high.

A miniature 10A switching power relay, in the form of the SPDT G5Q-PW comes next, with just 36mW coil power consumption.

The single pole G5NB-PW is the lowest power consumption 3A/5A relay, at just 32mW, but which still has a 10kV impulse withstand voltage. All three models are also available in IEC/EN 60335-1 conformant versions.

With the existing standard relays being OMRON’s most popular, these new PWM controlled versions aid benefit where efficiency and low power consumption are vital.

These PWM coil controlled relays are suitable for a wide range of applications including Domestic appliances, Office automation equipment, Industrial machines, Water heaters, HVAC and Refrigeration.

The components are in stock at distributor Anglia Components.

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