c3controls

Miniature Circuit Breakers : UL 489B, DC Rated

Designed to support and protect the transition to renewable energy and mission critical applications.

DC Miniature Circuit Breakers starting at only $47.42! Configure below.

Product Resources

Product Features

17.5mm wide per pole construction.
Includes both thermal and magnetic trip elements.
Available in one, two, and four pole constructions.
10kA short circuit current rating on all constructions.
Operating current configurations from 0.5 to 63 Ampere.
Rated 250V DC per pole for up to 1000V DC.
Dual trip curves: C & D.
Other configurations available. Consult factory for details.

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Delivering Superior Product Quality and Manufacturing Excellence with the Best Protection & Best Value!

c3controls is one of the few to introduce Direct Current (DC) Miniature Circuit Breakers designed and manufactured for all your DC industrial control, transportation, energy storage system and photovoltaic applications.

Compact Design

17.5mm wide per pole construction for reduced panel size, allowing for smaller control panels.

Compact Design

17.5mm wide per pole construction for reduced panel size, allowing for smaller control panels.

Industry-Leading Short Circuit Rating

10kA short circuit current rating on all constructions — the highest interruption rating in the market.

Full-Range Circuit Protection

Available in one, two, and four pole constructions, and includes both magnetic and thermal elements for overload and short circuit protection.

Application Range & Flexibility

Up to 22 unique current rating configurations from 0.5 to 63A for a broad range of applications.

Trip-Free Design

Holding the operating handle in the ON position will not prevent the miniature circuit breaker from tripping.

Dual Trip Curve

Provides individual load protection pertaining to direct current for situations like renewable energy generation using solar arrays, energy transfer with micro-grids using battery packs, emergency storage and use with Uninterruptible Power Supplies (UPS).

Easy Wiring

Captive screws make it impossible to lose screws when wiring and our box lug design terminals will accept a wide range of copper wire sizes.

Easy Installation

35mm DIN rail mounting for fast and easy installation and removal.

Customizable Options

With up to 10 shorting link / jumper configurations, there is a plethora of options to suit all applications.

The Perfect Range of DC Miniature Circuit Breakers.

Our UL489B branch circuit breakers offer a wide range of pole sizes, amperage ranges, and trip curves — providing superior performance and flexible application environments.

UL 489B Branch Circuit Breakers

17.5mm wide per pole construction
Available one, two, and four pole constructions
Includes both thermal and magnetic elements
Rated 250V DC per pole for up to 1000V DC
Current ratings from 0.5 to 63 Ampere
Dual Trip Curves C and D

Accessories

Snap-on accessories are easily installed without the use of tools.
Side mounted auxiliary contacts for remote status indication of device connection and a version with an alarm to indicate device tripped.
Shunt-trip module for remote tripping and an undervoltage module for protection against voltage dips and swells.
The heavy duty Lock-off attachment when used with a padlock ensures the security necessary during maintenance activities.

Engineered to a Higher Standard, Ensuring a More Sustainable Future.

With both thermal and magnetic trip elements for overload and short circuit protection, these breakers provide high voltage DC circuit protection and fully meet UL 489B, the standard for DC photovoltaic systems.

Proven

Our Series 1110 DC Miniature Circuit Breakers are UL Listed per UL489B, the standard for DC photovoltaic systems and are compliant to the RoHS directives.

Short Circuit Current Rating

10kA short circuit current rating on all constructions.

Polarized Design

Provides unidirectional protection for overloads and short circuits.

Visible Markings & Status Indication

High visibility labels and markings can be seen from the front and side of the device for easy installation. Color-coded status window for clear visual of the breaker status (Green = Tripped, Red = ON).

Added Safety

Line and load side IP20 guarded finger-safe terminals prevent accidental contact with live parts, while allowing ring, fork, and bare wire connections.

Media

UL 489B DC MCBs

Take your industrial control systems to the next level with the revolutionary DC MCB. In this video, discover its advanced features, including its exceptional breaking capacity, space-saving design, and effortless integration.

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