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BR-A1D
Principle and structure
BR series thermal protector is a temperature automatic response device and is temperature, current double protective equipment as well. When the heat generated by the increasing temperature from the protected appliances transmits to double-metal element, and reaching the temperature value of scheduled movement, the double-metal element will move immediately so that the contact will be switched off and the circuit will be cut off. When the temperature decreases to the rated temperature value of reposition, bimetal element will return to its initial state, the moving contact will be closed and the circuit will be on.
Applications
BR series thermal protectors are connected directly in series in the main circuit of various motors which are under 0.5hp, transformers, rectifiers, electro-thermal appliances which are under 1KW and etc, as protecting equipment.
As the sensor of temperature switch, it can be applied to control circuit of various appliances. The strengthening case product can endure the pressure caused by plastic modeling. It can be applied in built-in installation in plastic-enclosed motors.
Dimension
| Classification | L | W | H | Remark |
| BR-A1D(common type) | 15 | 6.6 | 3.2 | Metal case, equipping with bush when it’s using. |
| BR-A1D(strengthening type) | 15.5 | 7.2 | 3.8 | |
| BR-A1D(mini type) | 12.7 | 5.6 | 2.9 | |
| BR-B2D(common type) | 15 | 7.3 | 3.9 | PBT plastic case |
| BR-B2D(mini type) | 13 | 6 | 3 | |
| BR-B3D | 18 | 8 | 4 |
Contact capacity
Common Type：8A /24VDC 8A /125VAC 5A /250VAC
Mini Type：6A /24VDC 4A /125VAC 2A /250VAC
emperature specification
Open temperature: 70~150±5℃; one gear every 5℃
Identification
Open and Close Temperature
| Model | Opening temperature | Closing temperature | Model | Opening temperature | Closing temperature |
| BR-A1D 50℃ | 50±5℃ | 35±10℃ | BR-A1D 105℃ | 105±5℃ | 70±15℃ |
| BR-A1D 55℃ | 55±5℃ | 35±10℃ | BR-A1D 110℃ | 110±5℃ | 75±15℃ |
| BR-A1D 60℃ | 60±5℃ | 40±10℃ | BR-A1D 115℃ | 115±5℃ | 75±15℃ |
| BR-A1D 65℃ | 65±5℃ | 45±12℃ | BR-A1D 120℃ | 120±5℃ | 80±15℃ |
| BR-A1D 70℃ | 70±5℃ | 45±15℃ | BR-A1D 125℃ | 125±5℃ | 85±15℃ |
| BR-A1D 75℃ | 75±5℃ | 50±15℃ | BR-A1D 130℃ | 130±5℃ | 85±15℃ |
| BR-A1D 80℃ | 80±5℃ | 55±15℃ | BR-A1D 135℃ | 130±5℃ | 85±15℃ |
| BR-A1D 85℃ | 85±5℃ | 55±15℃ | BR-A1D 140℃ | 130±5℃ | 85±15℃ |
| BR-A1D 90℃ | 90±5℃ | 60±15℃ | BR-A1D 145℃ | 130±5℃ | 85±15℃ |
| BR-A1D 95℃ | 95±5℃ | 65±15℃ | BR-A1D 150℃ | 130±5℃ | 85±15℃ |
| BR-A1D 100℃ | 100±5℃ | 65±15℃ |
A-C Curve
Certification
UL E214731 (UL2111)
E243132 (UL873)
VDE 132813 （EN60730-2-2）
40023060 （EN60730-2-3）
CQC 2002TMP0433CQC
CB CN8062
Products