Siemens Industrial Controls 3RH2911-1HA11 Contact 322838-754 Enhanced Safety: Rapidly detects flame

Enhanced Safety: Rapidly detects flame loss to safely interrupt the gas supply and prevent hazardous accumulation

Precise Voltage Conversion: Efficiently steps down 115V primary input to a consistent 24V secondary output for reliable control circuit performance

This HVAC circuit board is designed to interface seamlessly with existing 24V control circuits

Enhanced Durability: The SINI (Silicon Nitride) construction provides a higher physical density than carbide

Maintenance-Focused Design: Includes a front-access battery compartment and a low-battery indicator to prevent system downtime during extreme weather

Siemens Industrial Controls 3RH2911-1HA11 Contact 322838-754 Enhanced Safety: Rapidly detects flameThe Siemens 3RH2911 1HA11 is a high performance SIRIUS auxiliary contact block designed for front mounting on 3RT2 contactors and 3RH2 contactor relays. This 2 pole unit features a 1NO + 1NC (Normally Open and Normally Closed) configuration, providing essential signaling and interlocking capabilities for industrial motor control circuits. Engineered for seamless integration, it utilizes a snap on mounting system that allows for tool free installation