Bimetallic Thermostat KSD9700 with 50-150℃ Range Normally Closed or Open and Bakelite Case
The H20 and H21 series universal and enhanced protectors feature a large metal casing composed of:
- Thermal conductive metal casing
- Bimetallic parts welded with silver alloy contact point
- Conductive bracket and insulation fixation stand
- Fixed contact strip and heat resistance cable
During abnormal operation, when environmental temperature reaches the set value, the bimetallic parts perform quick action to open the contact point and disconnect the circuit. When cooled to safe operating temperature, the contact point automatically closes to resume normal operation.
| 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 steps |
| Reset Temperature | 2/3 of action temperature (±15°C tolerance) or customized to customer requirements |
| Life Times | 10,000 cycles |
| Contact Closure Resistance | ≤50mΩ |
| Insulation Resistance | ≥100mΩ |
| Electric Strength | AC1500V/1min free from breakdown or 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 (customizable) |
| H21 | Metal | 18.5 | 7.3 | 3.8 | 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 (customizable) |
| 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 (customizable) |
The H20 and H21 series are suitable for:
- Chargeable batteries
- Ballasts
- Massagers
- Micro motors
- Transformers
- Electric tools
- Heat electric appliances
- Instruments
Manual Reset Type: When temperature reaches action range, the bimetallic strip quickly disconnects. The contact point cannot reset automatically - circuit must be reconnected by pushing the reset button when temperature declines by 20°C.
Auto Reset Type: Contact points automatically reconnect when temperature declines to safe operating level.
This product holds UL, CQC, TUV and RoHS certifications.
For more information, visit our official website.
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