It operates on a 110 V AC 50/60 Hz control circuit, drawing 3.5 VA holding and 5 VA pick-up. The response time is 25 ms.
The tripping voltage threshold is 0.35 to 0.7 Un for opening and 0.85 to 1.1 Un for closing. At 110 V AC nominal, that means the release will open the MCCB when the control voltage falls between about 38.5 V and 77 V, and will allow closing only when voltage is above roughly 93.5 V. This protects downstream equipment from undervoltage conditions—common on motor feeders where a brownout could stall a load or cause contactor chatter.
The G12UVR110AC is listed as active in the manufacturer's lifecycle status. No official successor or replacement has been issued.