Siemens Industrial Controls 3RT2026-1BB40 Contactor 320720-756 Fail-Safe Termination: Supports time

Fail-Safe Termination: Supports time

Proper installation requires ensuring sufficient liquid subcooling at the valve inlet to prevent premature flashing and erratic cooling performance

Always verify exact frame measurements before installation

always verify the specific air tube length and electrode dimensions against your technical manual before installation

Internal Forged Stops: Mechanical stops provide a precise 1/4-turn operation for positive open and closed positions

Siemens Industrial Controls 3RT2026-1BB40 Contactor 320720-756 Fail-Safe Termination: Supports timeThe Siemens Sirius 3RT2026 1BB40 Contactor is a heavy duty S0 size power contactor engineered for demanding motor control and industrial HVACR automation. Operating on a 24VDC control coil, this 3 pole device maintains a 25A AC 3 rating at 400V, providing a power delivery capacity of up to 11kW. Built for high cycle reliability in panel mount or 35mm DIN rail configurations, the 3RT2026 1BB40 features two integrated auxiliary contacts (1 NO + 1 NC)