MCB (Miniature Circuit Breaker) and RCCB (Residual Current Circuit Breaker) are essential electrical safety devices designed for industrial and commercial applications to protect electrical circuits from damage caused by excess current and earth faults. MCB is used to protect electrical circuits from overcurrent and short circuit, ensuring the system does not get overloaded or damaged. RCCB detects leakage currents that could cause electric shocks and immediately disconnects the circuit to prevent accidents. These breakers are highly reliable, compact in size, and easy to install, making them ideal for use in factories, workshops, office buildings, and other industrial environments where electrical safety and protection are critical. The MCB & RCCB units ensure compliance with electrical safety standards and help maintain uninterrupted operation of electrical equipment by minimizing risks related to electrical faults.
Key Features
| Features | Description |
|---|---|
| Type | MCB (Miniature Circuit Breaker) & RCCB (Residual Current Circuit Breaker) |
| Functionality | MCB protects against overcurrent and short circuits; RCCB protects against earth leakage and electric shocks |
| Application | Industrial, commercial electrical safety and protection |
| Size | Compact and easy to install |
| Operating Voltage | Typically 230V/400V AC (depending on model) |
| Current Rating | Varies, usually from 6A to 63A for MCB; 25A to 125A for RCCB |
| Standards Compliance | IS/IEC certified as per Indian electrical safety standards |
| Trip Curve Types | B, C, D for MCB to suit different protection requirements |
| Poles | Available in single, double, triple, and four-pole configurations |
| Durability | High mechanical and electrical endurance |
| Attributes | Description |
|---|---|
| Breaking Capacity | 6kA, 10kA typical for MCB |
| Sensitivity | 30mA, 100mA, 300mA settings available for RCCB |
| Operating Temperature | -5°C to +40°C |
| Mounting Type | Din Rail Mount |
| Material | High-grade flame retardant thermoplastic |
| Response Time | Instantaneous trip for unsafe conditions |
| Warranty | Usually 1 to 2 years |
| Insulation Voltage | Usually 500V AC |
| Standards | IS/IEC 60898 for MCB, IS/IEC 61008 for RCCB |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
Yes, MCB and RCCB are often installed together to provide comprehensive protection: MCB guards against overloads and short circuits, whereas RCCB protects against earth leakage currents.
MCBs typically come in current ratings from 6A up to 63A, whereas RCCBs are available with current ratings from 25A to 125A, depending on the load requirements.
Yes, MCB and RCCB breakers are designed to operate efficiently in standard industrial electrical systems of 230V single-phase or 400V three-phase supply.
These breakers comply with Indian and international standards like IS/IEC 60898 for MCBs and IS/IEC 61008 for RCCBs, ensuring reliable safety performance.
Yes, MCBs are available with trip curves such as B, C, and D for different types of loads, and RCCBs come with various leakage current sensitivity settings like 30mA, 100mA, and 300mA to suit specific protection needs.
