EFB24 N4
Details
Details
EFB24 N4 270 lb-in Spring Return Damper Actuator, 24 VAC/DC, On/Off
Two-position (on/off) control. Springs back to its fail-safe position on power loss.
Key Features
- Fail direction: set by mounting
- Enclosure: NEMA 4
- Wiring: terminal block
Product Specifications
| Manufacturer | Belimo |
|---|---|
| Model | EFB24N4 (EFB24 N4) |
| Nominal voltage | AC/DC 24 V |
| Nominal voltage frequency | 50/60 Hz |
| Nominal voltage range | AC 19.2 to 28.8 V / DC 21.6 to 28.8 V |
| Power consumption in operation | 9.5 W |
| Power consumption in rest position | 4.5 W |
| Transformer sizing | 16 VA |
| Electrical Connection | Terminal block(s) inside junction box with knockouts |
| Overload Protection | electronic throughout 0 to 95 deg rotation |
| Electrical Protection | actuators are double insulated |
| Torque | 270 lb-in (30 Nm) |
| Direction of motion motor | selectable by ccw/cw mounting |
| Direction of motion fail-safe | reversible with cw/ccw mounting |
| Manual override | 5 mm hex crank (3/16" Allen), supplied |
| Angle of rotation | Max. 95 deg |
| Angle of rotation note | adjustable with mechanical end stop, 35 to 95 deg |
| Running time (motor) | 75 s / 90 deg |
| Running time fail-safe | <20 s @ -20 to 50 deg C, <60 s @ -30 deg C |
| Sound power level, motor | 56 dB(A) |
| Sound power level, fail-safe | 71 dB(A) |
| Position indication | Mechanical |
| Power source UL | Class 2 Supply |
| Degree of protection NEMA/UL | NEMA 4 |
| Housing | UL Enclosure Type 4 |
| Agency Listing | cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730-1:02, CE acc. to 2014/30/EU |
| Quality Standard | ISO 9001 |
| Ambient humidity | Max. 100% RH |
| Ambient temperature | -22 to 122 deg F (-30 to 50 deg C) |
| Ambient temperature note | -40 to 122 deg F (-40 to 50 deg C) for actuator with integrated heating |
| Storage temperature | -40 to 176 deg F (-40 to 80 deg C) |
| Servicing | maintenance-free |
| Weight | 12 lb (5.3 kg) |
| Housing material | Die cast aluminium and plastic casing |
| Footnotes | †Rated Impulse Voltage 800V, Type of action 1.AA, Control Pollution Degree 4. |