Belimo NFB24-SR-S : Fail-Safe Damper Actuator, 90 in-lb Torque, 24VAC/DC, On/Off Control Signal, Modulating 2-10VDC Control Signal, (2) SPDT 3A @250V Aux Switch, 5-Year Warranty
Specifications
| Voltage AC/DC | AC/DC 24 V |
| Power Consumption (Running) | 3.5 W |
| Power Consumption (Holding) | 2.5 W |
| Power Consumption For Wire Sizing | 6 VA |
| Auxiliary Switches | 2 x SPDT |
| Torque | 90 in-lb [10 Nm] |
| Control Type | DC 2...10 V |
| Direction Of Motion Motor | selectable with switch 0/1 |
| Direction of Rotation (Fail-Safe) | Reversible with cw/ccw mounting |
| Manual Override | 5 mm hex crank (3/16" Allen), supplied |
| Angle of Rotation | 95 |
| Running Time (Motor) | 95 s / 90° |
| Running Time (Fail-safe) | <20 s |
| Protection category | IP42 |
| Degree Of Protection NEMA | NEMA 2 |
| Enclosure Type | UL Enclosure Type 2 |
| Ambient Temperature | -22...122°F [-30...50°C] |
Datasheets
 | Belimo NFB24-SR-S Technical Data sheet |
| Belimo NFB Series Installation Instructions |
| Belimo NFB/NFX Product Fact Sheet |
| Belimo Mounting Methods Guide |
| Belimo Master Format |
- Actuator Type:
- Fail-Safe
- Torque:
- 90 in-lb
- Voltage:
- 24VAC/DC
- Control Signal:
- 2-10VDC
- Auxillary Switch:
- Yes
- NEMA 4X Enclosure:
- No
