Collection: Damper Actuators - Non-Spring Return

Non-spring return damper actuators maintain their last commanded position when power is lost, relying on continuous control signal power to hold position. This makes them ideal for applications where a specific damper position — open, closed, or modulating — must be preserved regardless of power interruptions. Well-suited for VAV boxes, air handling units, and energy recovery ventilators. Available from Belimo and Siemens.

Belimo LRB120-3 Valve Actuator, Non fail-safe, AC 100...240 V, On/Off, Floating point

Belimo LRB120-3 Valve Actuator, Non fail-safe, AC 100...240 V, On/Off, Floating point

Regular price $211.50 USD

Regular price Sale price $211.50 USD
Belimo NMX24-SR-T N4 Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, NEMA 4X, terminals, modulating

Belimo NMX24-SR-T N4 Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, NEMA 4X, terminals, modulating

Regular price $525.00 USD

Regular price Sale price $525.00 USD
Belimo NMX24-SR-T Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, terminals

Belimo NMX24-SR-T Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, terminals

Regular price $264.00 USD

Regular price Sale price $264.00 USD
Belimo NMX24-SR Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, modulating

Belimo NMX24-SR Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, modulating

Regular price $288.00 USD

Regular price Sale price $288.00 USD
Belimo NMX24-MFT-X1 Configurable Valve Actuator, Non fail-safe, AC/DC 24 V, 2...10 V, MFT/programmable

Belimo NMX24-MFT-X1 Configurable Valve Actuator, Non fail-safe, AC/DC 24 V, 2...10 V, MFT/programmable

Regular price $381.50 USD

Regular price Sale price $381.50 USD
Belimo NMX24-MFT-T N4 Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, NEMA 4X, terminals, MFT/programmable

Belimo NMX24-MFT-T N4 Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, NEMA 4X, terminals, MFT/programmable

Regular price $601.50 USD

Regular price Sale price $601.50 USD
Belimo NMX24-MFT N4 Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, NEMA 4X, MFT/programmable

Belimo NMX24-MFT N4 Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, NEMA 4X, MFT/programmable

Regular price $623.50 USD

Regular price Sale price $623.50 USD
Belimo NMX24-MFT Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, MFT/programmable

Belimo NMX24-MFT Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, MFT/programmable

Regular price $365.00 USD

Regular price Sale price $365.00 USD
Belimo NMX24-3-X1 Configurable Valve Actuator, Non fail-safe, AC/DC 24 V, On/Off, Floating point

Belimo NMX24-3-X1 Configurable Valve Actuator, Non fail-safe, AC/DC 24 V, On/Off, Floating point

Regular price $222.50 USD

Regular price Sale price $222.50 USD
Belimo NMX24-3-T N4 Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, On/Off, Floating point, NEMA 4X, terminals

Belimo NMX24-3-T N4 Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, On/Off, Floating point, NEMA 4X, terminals

Regular price $442.00 USD

Regular price Sale price $442.00 USD
Belimo NMX24-3-T Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, On/Off, Floating point, terminals

Belimo NMX24-3-T Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, On/Off, Floating point, terminals

Regular price $184.00 USD

Regular price Sale price $184.00 USD
Belimo NMX24-3-F-T Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, On/Off, Floating point, cable

Belimo NMX24-3-F-T Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, On/Off, Floating point, cable

Regular price $184.00 USD

Regular price Sale price $184.00 USD
Belimo NMX24-3-F Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, On/Off, Floating point

Belimo NMX24-3-F Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, On/Off, Floating point

Regular price $205.50 USD

Regular price Sale price $205.50 USD
Belimo NMX24-3 Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, On/Off, Floating point

Belimo NMX24-3 Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, On/Off, Floating point

Regular price $204.00 USD

Regular price Sale price $204.00 USD
Belimo NMX120-SR-F Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC 100...240 V, 2...10 V, modulating

Belimo NMX120-SR-F Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC 100...240 V, 2...10 V, modulating

Regular price $337.50 USD

Regular price Sale price $337.50 USD
Belimo NMX120-SR Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC 100...240 V, 2...10 V, modulating

Belimo NMX120-SR Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC 100...240 V, 2...10 V, modulating

Regular price $337.50 USD

Regular price Sale price $337.50 USD
Belimo NMX120-3-F Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC 100...240 V, On/Off, Floating point

Belimo NMX120-3-F Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC 100...240 V, On/Off, Floating point

Regular price $238.00 USD

Regular price Sale price $238.00 USD
Belimo NMQX24-MFT Configurable Damper Actuator, 70 in-lb [8 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, MFT/programmable

Belimo NMQX24-MFT Configurable Damper Actuator, 70 in-lb [8 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, MFT/programmable

Regular price $469.50 USD

Regular price Sale price $469.50 USD
Belimo NMQX24-1 Configurable Damper Actuator, 70 in-lb [8 Nm], Non fail-safe, AC/DC 24 V, On/Off

Belimo NMQX24-1 Configurable Damper Actuator, 70 in-lb [8 Nm], Non fail-safe, AC/DC 24 V, On/Off

Regular price $431.50 USD

Regular price Sale price $431.50 USD
Belimo NMQB24-MFT Damper Actuator, 70 in-lb [8 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, MFT/programmable

Belimo NMQB24-MFT Damper Actuator, 70 in-lb [8 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, MFT/programmable

Regular price $469.50 USD

Regular price Sale price $469.50 USD
Belimo NMQB24-1 Damper Actuator, 70 in-lb [8 Nm], Non fail-safe, AC/DC 24 V, On/Off

Belimo NMQB24-1 Damper Actuator, 70 in-lb [8 Nm], Non fail-safe, AC/DC 24 V, On/Off

Regular price $431.50 USD

Regular price Sale price $431.50 USD
Belimo NMCX24-MFT Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, MFT/programmable

Belimo NMCX24-MFT Configurable Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, MFT/programmable

Regular price $427.50 USD

Regular price Sale price $427.50 USD
Belimo NMCB24-SR Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, modulating

Belimo NMCB24-SR Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, modulating

Regular price $330.00 USD

Regular price Sale price $330.00 USD
Belimo NMCB24-3 Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, On/Off, Floating point

Belimo NMCB24-3 Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, On/Off, Floating point

Regular price $244.50 USD

Regular price Sale price $244.50 USD
Belimo NMB24-SR Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, modulating

Belimo NMB24-SR Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, modulating

Regular price $288.00 USD

Regular price Sale price $288.00 USD
Belimo NMB24-MFT Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, MFT/programmable

Belimo NMB24-MFT Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, 2...10 V, MFT/programmable

Regular price $365.00 USD

Regular price Sale price $365.00 USD
Belimo NMB24-3-X1 Valve Actuator, Non fail-safe, AC/DC 24 V, On/Off, Floating point

Belimo NMB24-3-X1 Valve Actuator, Non fail-safe, AC/DC 24 V, On/Off, Floating point

Regular price $222.50 USD

Regular price Sale price $222.50 USD
Belimo NMB24-3 Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, On/Off, Floating point

Belimo NMB24-3 Damper Actuator, 90 in-lb [10 Nm], Non fail-safe, AC/DC 24 V, On/Off, Floating point

Regular price $204.00 USD

Regular price Sale price $204.00 USD

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Collection: Damper Actuators - Non-Spring Return

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