BW-ABJ Auto Reset Thermal Fuse with Bakelite Case for Over-Current Protection and Normally Closed/Open Switch

Price Negotiable

Price: USD 0.1~0.5PCS

MOQ: 1000PCS

Delivery Time: 10~15WORKDAYS

Brand: HENGHAO

Product Description

BW-ABJ Auto Reset Thermal Fuse KSD9700 Temperature Controlled Switch

The BW & BH series thermal fuses provide reliable protection against over-current and over-temperature conditions. These sealed units feature small internal resistance, silent operation, and automatic reset functionality. The temperature and current-sensitive bimetallic components respond to abnormal conditions by changing state to either cut off or restore the circuit.

BH Series Thermostat Specifications

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. Custom reset temperatures available.
Life times	10000 cycles
Size	L15mm W7.1mm H3.8mm
Lead wire	#22 3266, end half tripping, length is 70mm (customizable)
Certifications	UL File no: E487478 CQC certificate no: CQC16002142880 TUV certificate no: B160592241002

BH Series Thermal Protector Dimensions

Model	Case	Dimensions (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	Same as H20	Same as H20
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 (customizable)
BH-B2D	Plastic	15 × 7.1 × 3.8	Same as BH-A1D	Same as BH-A1D
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)

BH series thermostat dimensional diagram

BH Series Thermostat Applications

These reliable security protectors are widely used in:

1.5 horsepower motors
Lighting devices
Inverter welding machines
Switch power supplies
Rechargeable battery packs
Portable power tools
Various electric appliances

Enforced types (3.5MPa pressure rating) are suitable for plastic-coated motor installations.

Temperature Code Reference

Code	Temperature	Code	Temperature
30	30℃	100	100℃
35	35℃	105	105℃
40	40℃	110	110℃
45	45℃	115	115℃
50	50℃	120	120℃
55	55℃	125	125℃
60	60℃	130	130℃
70	70℃	135	135℃
75	75℃	140	140℃
80	80℃	145	145℃
85	85℃	150	150℃
90	90℃

H20/H21 Series Thermal Protector Specifications

Electrical Rating	DC-12V max 12A; DC-24V max 10A; AC-125V max 8A; AC-250V max 16A
Contact Closure resistance	≤50mΩ
Insulation resistance	≥100mΩ
Electric strength	AC1500V/1min (no breakdown or flashover)