Power Distribution & Protection.
Moulded Case Circuit Breakers, IEC60947-2.
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A Molded Case Circuit Breaker (MCCB) is a vital electrical protection device designed to safeguard circuits from excessive current caused by overloads or short circuits. MCCBs are suitable for a wide range of voltages and frequencies and offer adjustable trip settings, making them highly versatile in both commercial and industrial applications.
Unlike miniature circuit breakers (MCBs), MCCBs are commonly used in larger-scale systems—such as photovoltaic (PV) installations—where they serve both as protective devices and system isolation units.
Iron Side Electrical & Automation offers a comprehensive range of MCCBs, including:
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Thermal Magnetic Fixed Type
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Thermal and Magnetic Adjustable Type
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Electronic Adjustable Type
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DC Molded Case Circuit Breakers
These MCCBs support current ratings of up to 2000A, ensuring reliable performance across a broad spectrum of demanding applications.
Our range of MCCBs carries IEC approval, guaranteeing compliance with international safety and quality standards.
Thermal magnetic Fixed Type MCCB Moulded Case Circuit Breaker
The EKM8 series thermal magnetic fixed-type MCCBs are engineered to deliver reliable, high-performance protection for power distribution systems. Suitable for AC 50/60Hz applications, these breakers are ideal for a wide range of industrial, mining and commercial environments across South Africa.
Key Features:
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Compliance: IEC 60947-2
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Configuration Options: 3P, 4P
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Frame Sizes Available: 125A, 160A, 250A, 400A, 630A, 800A, 1250A, 2000AF
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Rated Operational Voltage: AC400/690V
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Rated Insulation Voltage: 1000V
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Operating Temperature Range: -25°C to +40°C
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Certifications: CE, CB
With robust design and proven safety standards, the EKM8 series offers dependable circuit protection for modern electrical installations. Perfect for panel builders, OEMs, and contractors seeking cost-effective and trustworthy circuit protection solutions.
Thermal Magnetic Adjustable Type MCCB Breaker
The EKM8T series thermal magnetic adjustable-type MCCBs offer a powerful combination of flexibility, precision, and robust protection for demanding industrial applications. Engineered for adaptability, these breakers feature adjustable trip settings, making them ideal for installations where load conditions may vary.
Key Features:
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Compliance: IEC 60947-2
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Frame Sizes Available: 125A, 160A, 250A, 400A, 630A, 800A, 1250AF
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Rated Operational Voltage: AC400/690V
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Pole Configurations: 3-Pole, 4-Pole
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Trip Unit: Thermal magnetic, adjustable type
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Installation Options: Fixed type or plug-in type
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Adjustable Settings:
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Thermal: 0.8 to 1 × In (nominal current)
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Magnetic: 5 to 10 × In
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The EKM8T series is the ideal choice for system designers, panel builders, and contractors requiring customisable circuit protection. Its high-level adjustability and compact design make it perfect for protecting circuits with variable loads while ensuring operational reliability and safety.
Electronic adjustable type MCCB Molded Case Circuit Breaker.
The ETEK EKM8E Series represents a high-performance range of electronic adjustable MCCBs, purpose-built for precision protection in modern industrial and commercial electrical systems. With advanced electronic trip units and flexible installation options, the EKM8E series is engineered to meet complex operational requirements with efficiency and reliability.
Key Features:
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Compliance: IEC 60947-2
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Pole Options: 3-Pole, 4-Pole
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Frame Sizes Available: 160A, 250A, 400A, 630A, 800A, 1250A, 1600A, 2000AF
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Rated Operational Voltage: AC400/690V
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Rated Insulation Voltage: 1000V
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Trip Unit: Advanced electronic trip unit
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Installation Methods: Fixed type or plug-in type
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Adjustable Tripping Settings:
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IR (long-time), Isd (short-time), Ii (instantaneous)
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Or: Ir (long-time), tR (time delay), tsd (short delay), Ip (peak instantaneous)
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Operating Temperature Range: -25°C to +40°C
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Certifications: CE, CB
Ideal for applications requiring high-accuracy protection, the EKM8E series allows precise adjustment of tripping characteristics, enhancing system safety and efficiency. It's a trusted choice for electrical engineers, OEMs, and contractors looking to optimise energy distribution systems with dependable, intelligent circuit protection.