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Product Type:

Hydraulic/Magnetic Circuit Breaker


Carling Technologies' B-Series hydraulic magnetic circuit breakers are specifically designed for applications requiring extra insulation and tongue and groove half-shell constructions. The B-Series carries global regulatory safety approvals for spacing requirements and are ideal for use as general purpose as well as full load amp applications. Available with various choices of time delays, terminals, actuator styles, with a wide range of standard colors and imprinting.

1-6 poles; ratings from 0.02 to 50 amps, up to 277VAC or 80VDC; UL recognized, CSA, VDE -0642, TUV, UL-1500, UL489A Listed.

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UL recognized, CSA, VDE -0642, TUV, UL-1500, UL489A Listed (Telecom)

Number of Poles

1-6 poles Handle actuator
1-3 poles Rocker actuator

Available Delays

Instant, Ultra-Short, Short, Medium, Long (motor loads), AC,DC, AC/DC; High Inrush - Short, Medium, Long

Maximum Current and Voltage Ratings

0.02-30A @ 277VAC, 80VDC
31.0-50A @ 125/250VAC
0.1-50A @ 80VDC (UL489A)
0.1-30A @ 120/120-240VAC (UL489)

Maximum Interrupting Capacity

3,000A @ 80VDC (UL only)
3,000A @ 125/250VAC (UL only)
5,000A @ 277VAC w/fuse back up (UL only)
5000A @ 80VDC (UL489A)
5000A @ 120/125/240VAC

Auxiliary Switch Ratings

10.1A @ 250VAC
0.1A @ 125VAC (gold contacts)
5A @ 30VDC
0.5A @ 80VDC
1.0A @ 65VDC

Available Circuits

Series, Shunt, Relay, Switch Only, Series w/Remote Shutdown, Relay and Shunt Trip Dual Coil

Actuator Style

Handle (1 per pole or 1 per unit)
Rocker (1 per unit)

Terminal Options

.250 QC Tabs
8-32 Screw w/ Upturned Lugs
8-32 Screw (Bus Type)
10-32 Screw w/ Upturned Lugs
10-32 Screw (Bus Type)
M4 & M5 Screw (Bus Type)
M4 & M5 Screw w/ Upturned Lugs
Push in Stud Terminals

Mounting Method

Front Panel
Snap-in Front Panel

Value Added

Custom actuator colors
PC Terminals available
Non-standard current ratings



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Medical Equipment
Generator & Welder Markets
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