MCB

A KRIPAL Miniature Circuit Breaker (MCB) is an automatic electromagnetic protection device that integrates switching and circuit protection into a single unit. It is designed to safeguard your equipment and circuits from damage caused by overcurrent and short-circuit faults. KRIPAL MCBs provide reliable, instant response to electrical faults, preventing wire damage, equipment failure, and potential fire hazards.

KRIPAL offers a comprehensive range of MCB series, including UKB5, UKB7, UKNT50, and UKBH, to meet diverse application needs. While all series provide core overcurrent and short-circuit protection, they may differ in specific features, form factors, or accessory compatibility. The choice depends on your specific project requirements, such as panel design, space constraints, and the need for additional functions. Our technical team can assist you in selecting the most suitable series.

The tripping characteristic (or curve) defines the MCB's response to short-duration overcurrents, like the inrush current when motors or transformers start.

KRIPAL MCBs cover the full range of standard curves:

• B Curve (3-5 In): Ideal for residential applications and circuits with long cable runs, protecting against sensitive equipment.
• C Curve (5-10 In): The most common type for commercial and industrial use, suitable for circuits with moderate inrush currents (e.g., lighting, sockets, small motors).
• D Curve (10-20 In): Designed for circuits with very high inrush currents, such as large transformers, welding equipment, or motors.

Yes. In addition to our standard offerings, KRIPAL provides custom design support. We can develop tailored solutions with non-standard tripping curves or specific current parameters to meet the unique demands of your non-standard application scenarios.

To extend the functionality of our MCBs, KRIPAL offers a wide selection of accessories, including:

• Auxiliary Contacts / Signal Contacts: To indicate the MCB's ON/OFF status remotely.
• Shunt Trips: For remote tripping of the MCB.
• Under-Voltage Releases: To automatically trip the MCB when the voltage drops below a set level.
• Safety Locks: To lock the MCB in the OFF position for safe maintenance.

Yes, absolutely. Safety and quality are our priorities. KRIPAL Miniature Circuit Breakers have passed rigorous testing and have been awarded certifications by accredited third-party organizations. Our products comply with all relevant international and regional standards, giving you confidence in their performance and safety.

KRIPAL MCBs are part of a comprehensive protection ecosystem.

Our solutions can be configured to meet a wide range of needs, including:

• Common Overcurrent & Short-Circuit Protection (Standard MCB function)
• Earth Leakage Protection (When combined with RCDs/RCBOs)
• Isolation Requirements (Providing a safe point of disconnection for maintenance)