M4 Series Motor Protection Circuit Breakers
B&J USA M4 series motor protection circuit breakers are available with toggle or rotary type actuators and have an adjustable dial for precise trip setting
B&J USA M4 series motor protection circuit breakers provide effective protection ranging from 0.16 A to 100 A. This range was designed for versatility and can be used as a circuit breaker, overload, and disconnect. M4 motor circuit breakers with toggle- or rotary-type actuators have an adjustable dial for precise trip setting. Accessories include auxiliary blocks, shunt and undervoltage releases, enclosures, IP-rated door handles, and more. The M4 series products comply with the major global approvals and are suitable for both basic manual motor starter and Type E combination motor controller applications.
- Compact size
- Adjustable dial for amp setting
- Lockable in off-position
- Din rail mount
- Screw terminals
- UL and CE approved
- Type E compatible
- Easy-to-install accessories
- Undervoltage release prevents equipment from automatically restarting after a power outage
- Rated to 690 V CE/600 V UL
- Motor controls
- Industrial control panels
- Equipment manufacturers
- Motor protection
M4 Series Motor Protection Circuit Breakers
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
![]() | ![]() | M4-32R-4 | MOTOR PROTECT CB ROTARY 2.5-4A | 14 - Marketplace | $174.93 | View Details |
![]() | ![]() | M4-32R-10 | MOTOR PROTECT CB ROTARY 6-10A | 20 - Marketplace | $194.56 | View Details |
![]() | ![]() | M4-32T-4 | MOTOR PROTECT CB TOGGLE 2.5-4A | 5 - Marketplace | $163.13 | View Details |
![]() | ![]() | M4-32T-6 | MOTOR PROTECT CB TOGGLE 4-6A | 3 - Marketplace | $163.13 | View Details |
![]() | ![]() | M4-32T-8 | MOTOR PROTECT CB TOGGLE 5-8A | 2 - Marketplace | $163.13 | View Details |
![]() | ![]() | M4-32T-2.5 | MOTOR PROTECT CB TOGGLE 1.6-2.5A | 2 - Marketplace | $163.13 | View Details |
![]() | ![]() | M4-32R-8 | MOTOR PROTECT CB ROTARY 5-8A | 10 - Marketplace | $174.93 | View Details |
![]() | ![]() | M4-32R-6 | MOTOR PROTECT CB ROTARY 4-6A | 13 - Marketplace | $174.93 | View Details |
![]() | ![]() | M4-32R-17 | MOTOR PROTECT CB ROTARY 11-17A | 20 - Marketplace | $194.56 | View Details |
![]() | ![]() | M4-32R-13 | MOTOR PROTECT CB ROTARY 9-13A | 26 - Marketplace | $194.56 | View Details |
![]() | ![]() | M4-32R-26 | MOTOR PROTECT CB ROTARY 18-26A | 11 - Marketplace | $254.26 | View Details |
![]() | ![]() | M4-32R-32 | MOTOR PROTECT CB ROTARY 22-32A | 39 - Marketplace | $235.43 | View Details |
![]() | ![]() | M4-63R-50 | MOTOR PROTECT CB ROTARY 34-50A | 3 - Marketplace | $554.75 | View Details |
![]() | ![]() | M4-63R-40 | MOTOR PROTECT CB ROTARY 28-40A | 9 - Marketplace | $535.70 | View Details |
![]() | ![]() | M4-63R-63 | MOTOR PROTECT CB ROTARY 45-63A | 6 - Marketplace | $554.75 | View Details |















