Electrozad

Accommodating all functions and advantages of the 3RB20/21 solid state overload relays for standard applications, our SIRIUS 3RB22/23 devices for high feature applications offer seamless motor and plant protection from 0.3 to 630 A. They provide not only current dependent, but also temperature dependent load protection. Thanks to the large current setting ranges of 1:10, the number of variants is reduced by up to 90 % compared with thermal overload relays. Being part of the SIRIUS modular system, the 3RB22/23 overload relays are ideal to easily assemble compact load feeders with a space saving design.

SIRIUS Current Transformer, 10 to 100 A Primary, Straight Through, 94.1 mm H x 54.8 mm W x 72.2 mm D

• Tripping classes class 5, 10, 20, 30 (selectable) offer solutions for Ex motors and normal/heavy starting
• Low power loss 98% lower power consumption compared to thermal overload relays
• Maximized coverage and minimized inventory thanks to control supply voltage range from 24 to 240 VAC/VDC
• Full motor protection thanks to connection of a PTC sensor (thermistor motor protection)
• Output of current values for further processing in a control system via analog output
• Modular device design with current measuring, evaluation and function expansion module assures maximum flexibility

• Specification Sheet https://uat.south.electrozad.com//ASSETS/DOCUMENTS/ITEMS/EN/SIRIUS_3RB2906_2JG1_Specification_Sheet.pdf