ELM1 Series MCCB: A New Benchmark for Safe & Reliable Electrical Protection in Industrial Systems
In today's modern power distribution market, electrical safety and system reliability are critically important requirements. The ELM1 Series Moulded Case Circuit Breaker (MCCB)has been created with these essential criteria in mind and utilises both international modern technology and strong/dependable construction/equipment. The ELM1 Series MCCB has been designed to be compliant with the Iec 60947-2 standards and provides reliable electric circuit protection against overload, short circuit, and under voltage. One of the key benefits of the ELM1 MCCB is that it will provide safe and reliable circuit resilience for AC 400V (or below) circuits, and rated currents up to 1250A, including for low-frequency motor starting applications.
As an added benefit, ELM1 Series MCCBs are trusted by many commercial buildings and large industrial plants alike. The ELM1 Series MCCB provides excellent versatility and durability, and adheres to many worldwide safety agencies, including CE, CB, RoHS, and ISO 9001. This guide will examine the features of the ELM1 Series MCCB, as well as their applications for both circuit protection and Motor Protection, and why these traits make the ELM1 Series MCCB the best choice for electrical protection needs.
What is the ELM1 Series Moulded Case Circuit Breaker?
The ELM1 Series is a series of industry-wide Moulded Case Circuit Breakers (MCCBs)designed primarily for electrical power distribution applications and motor protection applications. Furthermore, whereas Miniature Circuit Breakers (MCBs) have the capability of handling less than 125A, MCCBs have the capability of handling greater than 125A electrical current through their enhanced breaking capabilities, making them more appropriate for demanding electrical environments.
Key Features and Specifications at a Glance

Key Features of ELM1 MCCB
1. Adaptability of Breaking Capacity for All Applications
The ELM1 MCCBs are available in three different breaking capacities to better match the fault current of your panel:
- Standard (S): Best suited for commercial and light industrial applications.
- Higher Class (H): What is used in industrial applications that require more rugged conditions and higher fault currents?
- Current Limiting (R): Allows for instantaneous interruption of fault current to assist in minimizing damage caused by equipment failure.
2. Versatile Pole and N-Pole Configuration Options
For single-phase or three-phase systems, you can select the number of poles based on your application needs: 1P, 2P, 3P, or 4P. For 4P breakers, there are four different N-Pole options to satisfy multiple requirements related to neutral circuitry:
- Type A: N-pole is always in the make state, regardless of whether other poles are being made or broken.
- Type B: The N-pole will make in conjunction with other poles and will be the first pole to break.
- Type C: The N-pole will be made first, followed by the making/breaking of all other poles.
- Type D: N-pole is always in the make state, and will neither be closed nor opened in conjunction with other poles.
3. Multiple Operation Options
The ELM1 series has the flexibility of multiple modes of operation depending on how they are installed and controlled:
- Direct Handle Operation: Manual operation; best suited for most standard installations.
- Motor Drive Operation: Allows for remote control/automatic operation of a smart system with the ELM1 series breaker.
- Rotary Handle Operation: Provides easy access for panel-mounted breakers located in tight spaces.
4. Complete Compatibility for Accessories
Choose from an extensive range of accessories to tailor the ELM1 MCCB (moulded case circuit breaker) to your exact operational requirements:
- Shunt Release – used to trip the MCCB from a distance during an emergency shutdown.
- Under-Voltage Release – used to reduce the risk of equipment damage due to unstable or low voltage supplies.
- Auxiliary Contacts – used to provide feedback regarding the on/off status of an automated piece of equipment, allowing its integration in a monitoring system.
- Alarm Contacts – used to generate alerts when tripping has occurred so that preventative maintenance can be performed.
- Combined Options such as: (Auxiliary + Alarm), (Shunt + Auxiliary), etc.
5. Robust Electrical and Mechanical Performance
Designed for durability and reliability, MCCBs offer high levels of electrical resilience and mechanical performance:
- Impulse Withstand Voltage Rating (Uimp): Up to 8000V, which provides increased surge protection.
- Mechanical Endurance: Up to 125,000 operations for a long service life.
- Dielectric Strength: Tested at 2500V - 3000V for the integrity of insulation.
- Certifications: CE, CB, RoHS, ISO 9001, etc., meeting the requirements of global compliance.
ELM1 Series MCCB Models and Specs
The ELM1 models accommodate different load requirements for frames ranging from 63A to 1600A:

Applications for ELM1 MCCBs
Engineered for the protection of various types of electrical systems, the ELM1 series may be put to use in:
- Commercial buildings: Lighting protection, power circuit protection, and HVAC circuit protection in office buildings, malls, and hotels.
- Industrial facilities: Protecting production lines and heavy machinery, as well as motor control centers, from overloads and shorts.
- Data Centers: Provide reliable distribution of power to critical IT infrastructure to minimize downtime due to a lack of power.
- Renewable energy: Enhance protection for solar and wind energy distribution networks under varying load conditions.
- Marine and Offshore: Built to endure challenging environments like shipping and offshore installations.
- Motor Protection: Includes specialized variants designed for infrequent motor starting and operational changes.
Why Choose the ELM1 MCCB Series
1. Global Compliance & Safety
ELM1 MCCBs conform to the IEC 60947-2 standard and hold numerous international certifications, ensuring compatibility with systems across regions.
2. Customizable Solutions
With flexible pole configurations, breaking capacities, and accessory options, ELM1 MCCBs meet specific system requirements with ease.
3. Durability & Reliability
Manufactured using premium materials and undergoing rigorous testing, ELM1 MCCBs ensure long and reliable service life in challenging conditions.
4. Reduced Equipment Downtime Risks
Quick response to overload, short-circuit, or under-voltage events minimizes risks of equipment damage and downtime.
5. Easy Installation & Maintenance
Designed with standardized guide rails and mounting systems, making installation and maintenance straightforward and hassle-free.
Frequently Asked Questions (FAQ)
Q1: What is the difference between MCB and MCCB?
MCCBs (like the ELM1 series) handle higher current capacities (63A–1600A) and offer greater breaking performance compared to MCBs (typically up to 125A), making MCCBs suitable for industrial applications and MCBs more common in residential scenarios.
Q2: Can ELM1 MCCBs be used for motor protection?
Yes! ELM1 MCCBs provide variants tailored for motor protection, ideal for infrequent motor starting and operation.
Q3: What accessories are available for ELM1 MCCBs?
Accessories include shunt release, under-voltage release, auxiliary and alarm contacts, and various combined configurations to meet operational needs.
Q4: What certifications do ELM1 MCCBs have?
ELM1 MCCBs are certified by global bodies, including CE, CB, RoHS, and ISO 9001, ensuring compliance with international standards.
Q5: What is the maximum rated current of ELM1 MCCB?
ELM1 MCCBs support rated currents up to 1600A, making them ideal for large-scale industrial and infrastructure projects.
The ELM1 series of Moulded Case Circuit Breakers uses advanced technology, the highest level of performance, and extensive customization to provide reliable electrical protection for any application. Whether you are creating a new distribution system or upgrading an existing system, ELM1 MCCBs deliver tailored solutions with globally recognized certifications and proven reliability.
Ready to find the best ELM1 MCCB for your project? Contact our team today to discuss your requirements and request a quote.


















