Belimo ZG-X40 Plate Mount Transformer 24 VAC Primary 120 VAC 40 VA

ZG-X40 is a 40 VA transformer from Belimo that provides 24 VAC from a 120 VAC input, designed for plate-mount installation on a 4-1/4" square outlet box cover. Primary voltage is 120 VAC, 50/60 Hz, while the secondary delivers 24 VAC with a maximum of 40 VA, suitable for powering Belimo actuators and related control devices. The unit uses six-and-a-half inch (6-1/2") leads with stripped ends: primary conductors are White and Black, secondary conductors are Yellow and Yellow, using No. 18 AWG wiring. It is a Class 2 transformer and carries safety approvals including UL 1585 and CSA 22.2 No. 66. The ZG-X40 is listed on Belimo’s official site as Transformer, AC 120 V to AC 24 V, 40 VA, and is commonly used in Belimo HVAC control configurations, often in conjunction with related power supply options such as the PS-100. Mounting on a standard electrical box and inside-wiring capabilities help simplify installation in compact control enclosures while keeping wiring tidy and accessible.