Professional MCB & MCCB Accessories Manufacturer

Elevate the control, protection, and communication capabilities of your electrical systems. JUTRION provides a complete range of professional MCB and MCCB accessories—including shunt trips, auxiliary contacts, and motorized mechanisms. Engineered for seamless integration, our products strictly comply with international standards to ensure reliable remote operation and maximum safety for global power distribution networks.

Explore our versatile range of high-performance breaker accessories. Engineered for precise component-level replacement and broad cross-brand compatibility, our portfolio provides the exact technical specifications your bespoke panel configurations demand.

Motorized Operating Mechanisms

Shunt Trips (MX)

Auxiliary Contacts (OF)

Signal/Alarm Contacts (SD)

Undervoltage Releases (MN)

Front Connection (FC)

Rear Connection (RC)

Ready to eliminate supply constraints and optimize your panel configurations? Don’t waste time figuring out complex compatibility data sheets. Click below to connect directly with our application engineers, submit your project requirements or nameplate photos, and receive your personalized, zero-error engineering solution today.

Motorized Operating Mechanisms

CUSTOMIZABLE TO MATCH YOUR EXISTING MCCB DESIGN

Shunt Trips (MX)

UNIVERSALLY COMPATIBLE WITH 99% OF MAINSTREAM BREAKERS

Auxiliary Contacts (OF)

ZERO-ERROR VOLT-FREE SIGNALING

Undervoltage Releases (MN)

INSTANT PROTECTION AGAINST VOLTAGE DROPS

Front Connection (FC)

RAPID FRONT-PANEL REPLACEMENT & ACCESSIBILITY

Rear Connection (RC)

CLEAN ENCLOSURE LAYOUT & MAXIMUM FRONT SAFETY

Accessory TypeControl/Auxiliary VoltageContact ConfigurationMechanical/Electrical EnduranceCompatible Framework
Motorized Operating MechanismsAC 110,VAC 220V, 400V
, DC 24V, DC 36V, 110V, 220V
Built-in Auto/Manual Switch10,000 Remote OperationsMCB / MCCB Series
Shunt Trip (MX / ST)AC 230V, 400V
, DC 24V
N/A (Instantaneous tripping)4,000 Tripping OperationsMCB / MCCB Series
Undervoltage Release (MN / UVR)AC 230V, 400V
, DC 24V, 48V
N/A (Drop-out: 35%-70% Un)4,000 Tripping OperationsMCB / MCCB Series
Auxiliary Contact (OF)N/A1 NO + 1 NC / 2 NO + 2 NC10,000 Cycles (Electrical)MCB / MCCB Series
Alarm Contact (SD)N/A1 NO + 1 NC / 2 NO + 2 NC10,000 Cycles (Electrical)MCB / MCCB Series
Front Connection (FC)N/A N/A N/A MCCB Only
Rear Connection (RC)N/A N/A N/A MCCB Only

Compatible with a comprehensive range of global electrical brands, our MCB and MCCB accessories eliminate supply constraints with flawless, drop-in adaptation. Backed by highly flexible manufacturing, we provide tailored modifications to meet your exact voltage, terminal layout, and application needs.

Step inside a facility dedicated to rigorous manufacturing discipline and clear cross-brand technical alignment. Every stage of our assembly process enforces strict quality check milestones, covering internal mechanism calibration, micro-switch fine-tuning, and robust component testing. We treat every accessory not just as a part, but as a critical element that must flawlessly integrate into our clients’ power distribution systems, meeting the industry’s highest standards of operational safety.

Stop wasting time deciphering complex technical catalogs or faded model codes. If you are unsure which auxiliary contact, shunt trip, or motor mechanism fits your current circuit breaker, simply snap a clear photo of the breaker’s front nameplate or side profile and send it to our team. Backed by our extensive cross-brand engineering database, our technicians will instantly identify the exact frame size, mounting standard, and terminal layout, delivering a 100% compatible accessory solution within hours.

Get Your Exact Match in 3 Steps

Step 1: Snap a Photo

Take a quick photo of the breaker’s nameplate, model stamp, or accessory slot.

Step 2: Send & Relax

Send it via email, WhatsApp, or our inquiry form—no complex data sheets required.

SteStep 3: Get the Exact

Our technical team responds with the perfectly verified, 100% compatible accessory quote.

What is a Motorized Operating Mechanism (Motor Operator)?

A Motorized Operating Mechanism is an electrical device used for the remote opening, closing, and resetting of molded case circuit breakers (MCCBs). Instead of manually flipping the breaker toggle, it utilizes an internal motor to operate the mechanism, making it ideal for automated power management and remote control systems.

What is a Shunt Trip (MX / ST)?

A Shunt Trip is a control accessory that enables the circuit breaker to be tripped remotely via an electrical signal. When an external voltage (such as AC 220V or DC 24V) is applied to the shunt trip coil, it acts upon the breaker’s internal mechanical latch, forcing the breaker to open instantly for safety or emergency shutdown.

What is an Auxiliary Contact (OF)?

An Auxiliary Contact is a secondary switch that mechanically links to the main contacts of the circuit breaker. It changes its state (Open/Closed) simultaneously with the breaker. It provides a volt-free signal to remote indicator lights, PLCs, or control circuits to reflect whether the breaker is currently “On” or “Off”.

What is an Alarm Contact (SD)?

An Alarm Contact is a specialized signaling switch that only changes its state when the circuit breaker trips due to a fault (such as an overload, short circuit, or fault tripping). It remains unchanged during regular manual operations, allowing maintenance teams or automation systems to instantly identify a fault condition.

Space-Saving Innovation: Integrated Shunt Trip & Auxiliary Contact (MX+OF)

To maximize spatial efficiency within dense power distribution panels, we have engineered an integrated Shunt Trip and Auxiliary Switch combo device. Rather than occupying multiple side-slots, this high-density unit delivers both remote emergency tripping capabilities and reliable volt-free status signaling within a single, unified module. It perfectly balances advanced multi-functional protection with reduced installation labor and optimal panel utilization.

What is an Undervoltage Release (MN / UVR)?

An Undervoltage Release is a safety mechanism that automatically trips the circuit breaker when the supply voltage drops significantly (typically between 35% and 70% of the rated voltage). It prevents industrial machinery or motors from automatically restarting under unsafe, low-voltage conditions when power is suddenly restored.

What are Front/Rear Connection Plug-in Bases?

These are specialized mounting configurations designed for rapid breaker replacement without disconnecting the main power cables.

  • Front Connection Plug-in: The breaker plugs into a base where cable wiring is completed on the front panel side.
  • Rear Connection Plug-in: The breaker plugs into a base whose terminal studs extend through the mounting plate, allowing all heavy power cabling to be organized safely behind the panel board.

JUTRION ELECTRIC

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