While it fits the physical T-4000 Series frame

range for RV81/210D regulators

it ensures factory-standard calibration for York

the internal bimetal disc or contacts have likely failed

this kit is specifically sized for 1/2" and 3/4" units

Veris Industries VMD1B-F24A Socket While it fits the physicalDesigned for mission critical reliability in building automation systems, the Veris Industries VMD1B F24A is a 15A SPDT socket DIN relay engineered for high performance switching. Operating on a 24VAC coil, this deluxe series mechanical relay eliminates guesswork during field troubleshooting with its integrated LED status lamp and mechanical flag indicator. The VMD1B F24A socket relay is effectively identical to the VMD1B F24A 02A, providing a