Description: The BW-BCP Thermal Protector ensures reliable thermal protection with automatic reset functionality and plastic shell insulation. Designed for power classes up to 6A, this normally closed thermal protector features a robust construction ideal for various applications.

Main Parts:

1. Shell
2. Iron Bracket
3. Bimetal Disc
4. Movable Contact
5. Base
6. Stationary Silver Contact

Construction:

• Movable Contact: Welded to the bimetal disc and then to the iron bracket.
• Stationary Silver Contact & Base: Molded as a single unit and riveted to the iron bracket.
• Current Path: Passes through the movable contact on the bimetal disc from the iron bracket, then through the stationary silver contact to form a complete circuit.

Function:

• Normal Operation: The contacts remain closed under the pre-pressure of the bimetal disc.
• Over Temperature: At the rated temperature, the bimetal disc deforms and quickly opens the circuit.
• Reset: As the device cools to the reset temperature, the bimetal disc returns to its original position, closing the contacts and restoring circuit operation.

Product Parameters:

• Nominal Switching Temperature (NST): 35°C - 160°C
• Tolerance: ±5K
• Reverse Switching Temperature (RST) Tolerance: Refer to datasheet
• Thickness: 3.5mm
• Width: 7.0mm
• Length: 15mm
• Resistance to Impregnation: Suitable
• Pressure Resistance: 100N
• Standard Connection: 0.33 mm² / AWG22
• Available Approvals: UL, VDE, CQC, KC, CB
• Operating Voltage Range: Up to 500V AC / 36V DC
• Rated Voltage AC: 250V
• Rated Current AC: 6A / 6,000 cycles (cos ? = 1.0)
• Rated Voltage DC: 24V
• Max. Switching Current DC: 6A / 10,000 cycles
• Insulation Voltage: 1.5kV
• Total Bounce Time: < 1 ms
• Contact Resistance: ≤ 50 mΩ
• Vibration Resistance: 100 m/s² (10-60 Hz)