GCA121.1U | SR 24VAC ON/OFF 142 IN/LB | Siemens Building Technology Used on_UDAP100/UDAP125/UDAS100/UDAS125 the 8221G5 is built to

the 8221G5 is built to withstand demanding conditions

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Its compact design and robust construction make it ideal for mounting in confined spaces

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GCA121.1U | SR 24VAC ON/OFF 142 IN/LB | Siemens Building Technology Used on_UDAP100/UDAP125/UDAS100/UDAS125 the 8221G5 is built toThe Siemens Building Technology GCA121. 1U is a SR 24VAC ON OFF 142 IN LB Control Relay. It is used for switching in 24 V systems, and has a power consumption of less than 100 mA. The GCA121. 1U has a wide range of applications, including heating, ventilation, and air conditioning (HVAC) systems, industrial automation, and building management. The GCA121. 1U is a reliable and efficient control relay that is easy to install and operate. It is a