By maintaining the correct superheat

Designed for seamless integration with Trane RTU (Rooftop Units) and industrial air handlers

Heavy-Duty Construction: Features a rugged 3/4 inch NPT connection to handle high gas volume requirements in commercial heating loops

for the most accurate pressure control and to ensure the vent limiter functions correctly

Key Benefits for Contractors: Universal Compatibility: Fits a broad range of Cutler-Hammer Freedom Series NEMA and IEC contactors

Siemens Industrial Controls 3RH2911-1HA31 Contact Block 318973-401 By maintaining the correct superheatIntegration of the Siemens 3RH2911 1HA31 into your control logic setup provides a high reliability solution for expanding the contact capacity of SIRIUS 3RT2 contactors and 3RH2 contactor relays. This front mount auxiliary contact block features a 3NO + 1NC (3 Normally Open 1 Normally Closed) configuration, allowing for complex interlocking, signaling, and feedback loops within industrial motor control circuits. Designed for snap on mounting, it