BW-B2D 250V 10A BW-ABS 9700K Thermostat Temperature Controller
BW-B2D series thermostat temperature controller with comprehensive safety certifications including UL, CQC, TUV and RoHS approval.
H20, H21 series universal and enhanced protectors with large metal casing are composed of thermal conductive metal casing, bimetallic parts welded with silver alloy contact point, conductive bracket, insulation fixation stand, fixed contact strip and heat resistance cable. In case of abnormal operation, when environment temperature increases to the set value, the bimetallic parts perform quick action, open the contact point, and disconnect the circuit. When the device cools to safe operating temperature, the contact point automatically closes and normal operation resumes.
| Electrical Rating | DC-12V max 12A; DC-24V max 10A; AC-125V max 8A; AC-250V max 16A |
| Open Temperature | (30~150)±5°C; 5°C a step |
| Reset Temperature | 2/3 of the action temperature with tolerance of ±15°C. Reset temperature can also be provided according to customers' requirement. |
| Life Times | 10000 times |
| Contact Closure Resistance | ≤50mΩ |
| Insulation Resistance | ≥100mΩ |
| Electric Strength | AC1500V/1min free from phenomena of break down and flashover |
| UL File No | E487478 |
| CQC Certificate No | CQC16002142880 |
| TUV Certificate No | B160592241002 |
| Model | Case | Length(mm) | Width(mm) | Height(mm) | Voltage & Current | Lead Wire |
|---|---|---|---|---|---|---|
| H20 | Plastic | 18.5 | 8 | 4 | DC-12V max 12A; DC-24V max 10A; AC-125V max 8A; AC-250V max 10A | #20 3135, end 5mm half tripping, length 70mm, or custom |
| H21 | Metal | 18.5 | 7.3 | 3.8 | - | - |
| H21 | Metal | 20 | 8 | 4 | AC250V 20A | #16 3135 |
| BH-A1D | Metal | 15 | 6.6 | 3.2 | DC-12V max 12A; DC-24V max 10A; AC-125V max 8A; AC-250V | #20 3135, #22 3266, #22 3135, end 5mm half tripping, length 70mm, or custom |
| BH-B2D | Plastic | 15 | 7.1 | 3.8 | - | - |
| BH-TB02B-B8D | Plastic | 15 | 5.2 | 2.4 | DC-12V max 4A; DC-24V max 3A; AC-125V max 3A; AC-250V max 2A | 3266-AWG24#, 3135-AWG24# or nickel strip, length 70mm or custom |
H20, H21 series is applicable to chargeable batteries, ballasts, massagers, micro motors, transformers, electric tools, heat electric appliances and instruments.
Manual Reset Type: Temperature sensing components consist of bimetallic strip. When temperature reaches the action range, it jumps quickly and the movable disc disconnects. When temperature declines to a fixed point, contact points cannot reset until reconnecting the circuit by pushing the reset button. Contact points then recover, achieving circuit connection/disconnection and restarting by manual reset.
- This manual reset thermostat can reset when temperature declines 20°C after snap action by pressing reset button (4-6N advisable; avoid excessive force)
- To ensure normal function, distance between reset button and close cover should not be less than 20.4mm
Auto Reset Type: Temperature sensing components consist of bimetallic strip. When temperature reaches the action range, it jumps quickly and the movable disc disconnects. When temperature declines to a fixed point, contact points automatically reset and resume operation.
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