Snap–Action Disc Bimetal Circuit Breaker BR-A1D , Thermal Protector
- Small motors
- Washers and dryers
- Automotive accessory motors
- PC boards
- Battery charges
- ………and more.
Changsheng BR-A1D series motor protector is built to meet almost
any requirement of protection in a wide range of small motors,
small transformers, solenoids, and more. This compact motor
protector is the best solution to protect the wide variety of
motors under 1 Hp used in industrial and domestic appliances
against locked rotor and overload situations.
This motor protector consists of a metal SPCCC housing that holds
and protects the inner components against infiltration as well as
mechanical deformation. In single–phase motors, the BR-A1D can be
mounted directly in the main circuit to serve as an on– or
125Vac/10A, 250Vac/6A, 24Vdc/10A
The bimetal carries current or not
50°C to 150°C in increments of 5°C
depending on open temperature
The resistance between the leads and insulation sleeve is >100 M
with 500 VDC at 25 °C.
Lead wire pull strength
30 N applied from lead to lead for 5sec. No slip-off or rupture
1. The strongest Chinese manufacturer, ISO 9001and ISO14001
2. Compact, miniature size.
3. UL,VDE,CE CQC Approved.
4. Individually temperature checked on modern, custom-designed
equipments from Japan.
5. Snap–action disc, normally on.
6. Epoxy resin
7. Bimetal discs carry circuit current, so it is current and
temperature double sensitivity for maximum design flexibility and
BR-A1D with standard metal case
BR-A1D with enforced metal case
Note: wall thickness of the enforced case is 0.5m minimum and it
will withstand 30MPa injection pressure (no deformation)
①Metal case ②Plate ③Bimetallic disc ④Spring ⑤Movable contact
⑥Stationary piece ⑦Base ⑧Epoxy resin ⑨Lead wire ⑩Sleeve