CQKB24-SR-LR
Details
Details
CQKB24-SR-LR Electronic Fail-Safe Zone Valve Actuator, NO/FC, 24 VAC/DC, 2-10V
Fits Belimo ZoneTight zone valves, 1/2 to 1 in.
Ships set to normally open and fail closed (NO/FC).
Needs the ZG-R01 500 ohm resistor for a 4-20mA signal.
Order CQKB24-SR-RL for the normally closed, fail open version.
Key Features
- Position feedback U: 2 to 10 V
- Running time (motor): 75 s
Product Specifications
| Manufacturer | Belimo |
|---|---|
| Model | CQKB24SRLR (CQKB24-SR-LR) |
| Actuator type | Modulating, Electronic fail-safe, 24 V |
| Normal position | Normally open (NO) |
| Fail position | Fail closed |
| 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 | 2.5 W |
| Power consumption in rest position | 0.5 W |
| Transformer sizing | 5 VA |
| Overload Protection | electronic throughout 0 to 90 deg rotation |
| Electrical Protection | actuators are double insulated |
| Operating range Y | 2 to 10 V |
| Operating range Y note | 4 to 20 mA w/ ZG-R01 (500 ohm, 1/4 W resistor) |
| Input impedance | 100k ohm for 2 to 10 V (0.1 mA), 500 ohm for 4 to 20 mA |
| Position feedback U | 2 to 10 V |
| Bridging time (PF) | 2 s |
| Pre-charging time | 5 to 20 s |
| Angle of rotation | 90 deg |
| Actuator angle of rotation note | adjustable with mechanical stop |
| Running time (motor) | 75 s / 90 deg |
| Running time fail-safe | <60 s |
| Sound power level motor | 35 dB(A) |
| Sound power level, fail-safe | 35 dB(A) |
| Position indication | pointer |
| Power source UL | Class 2 Supply |
| Degree of protection IEC/EN | IP40 |
| Degree of protection NEMA/UL | NEMA 2 |
| Housing | UL Enclosure Type 2 |
| Agency Listing | cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730-1:02 CE acc. to 2014/30/EU and 2014/35/EU |
| Quality Standard | ISO 9001 |
| UL 2043 Compliant | Suitable for use in air plenums per Section 300.22(C) of the NEC and Section 602 of the IMC |
| Ambient humidity | Max. 95% RH, non-condensing |
| Ambient temperature | 35 to 104 deg F (2 to 40 deg C) |
| Storage temperature | -40 to 176 deg F (-40 to 80 deg C) |
| Servicing | maintenance-free |
| Weight | 0.55 lb (0.25 kg) |
| Housing material | UL94-5VA |
| Wire colors | 1 = black, 2 = red, 3 = white, 5 = orange |