You're looking at an electrical panel. The breakers are there, but the leakage protection is missing or outdated. You need to specify a residual current circuit breaker — but which one? The wrong choice leads to nuisance tripping, inadequate protection, or installation headaches. The right choice provides reliable leakage protection across every circuit in your facility.
Choosing the right RCCB for your panel comes down to three factors: current capacity, sensitivity, and configuration. The EKL6-100 series from ETEK Electric covers the range — from 16A to 100A, 30mA to 300mA sensitivity, and 2-pole or 4-pole configurations. This guide walks you through how to match the RCCB to your panel and application.
Magnetic tripping — the reliability advantage
The core of the EKL6-100 is its magnetic tripping mechanism, which provides consistent performance where other RCCBs might fail.
Stable operation in electrically noisy environments
Industrial and commercial electrical environments are noisy — variable frequency drives, switching power supplies, and heavy machinery all generate electrical noise that can affect sensitive protection devices. The EKL6-100's magnetic tripping mechanism ensures stable operation even in these challenging conditions. Unlike thermal-magnetic devices that can be affected by ambient temperature, the magnetic mechanism responds directly to the leakage current itself — not to heat.
Up to 100A capacity for demanding loads
With a rated current range of 16A to 100A, the EKL6-100 covers the full spectrum of industrial and commercial applications. From small lighting circuits to large HVAC systems and production lines, one RCCB series handles the range. The 100A capacity means you can protect high-current loads without needing multiple devices in parallel.
Multiple sensitivity options for targeted protection
The EKL6-100 offers sensitivity options of 30mA, 100mA, and 300mA. Each sensitivity level serves a different protection purpose:
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30mA — Personnel protection. The standard for circuits where human contact is possible.
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100mA — Equipment protection. Catches leakage currents that could damage sensitive electronics.
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300mA — Fire protection. Prevents sustained leakage currents from generating heat and starting fires.
For facility managers specifying protection for an entire building, this flexibility means you can match the RCCB to the risk level of each circuit.
Where the EKL6-100 fits in your electrical system
The EKL6-100 is designed for a wide range of industrial and commercial applications. Understanding where it fits helps you specify the right protection for each part of your facility.
Manufacturing plants and production lines
CNC machines, robotic cells, and automated production lines all rely on continuous power. A leakage fault that trips the wrong circuit can stop production. The EKL6-100 protects manufacturing equipment while discriminating between fault types.
Commercial complexes and office buildings
Shopping malls, office buildings, and retail spaces have diverse electrical loads — lighting, HVAC, elevators, and tenant power. The EKL6-100 provides protection that meets commercial safety requirements without nuisance tripping.
HVAC systems and data centers
Large HVAC installations draw high current and operate in demanding conditions. Data centers require protection that doesn't compromise uptime. The EKL6-100 is specified for both.
Below is a quick reference table for EKL6-100 specifications:
| Specification | EKL6-100 |
|---|---|
| Standard | IEC61008-1 |
| RCD Type | AC, A |
| Rated current | 16~100A |
| Rated voltage | 230/400V~240/415V |
| Poles | 2P(1P+N), 4P(3P+N), N Pole on left |
| Sensitivity | 30mA, 100mA, 300mA |
| Short-circuit breaking capacity | 6kA, 10kA |
| Ambient temperature | -25°C to +40°C |
| Connection | Bi-Directional |
| Electrical life | 2,000 cycles |
| Mechanical life | 4,000 cycles |
| Protection degree | IP20 |
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Installation and configuration that works with your system
The EKL6-100 is designed for straightforward integration into existing electrical systems.
Bi-directional connection for flexible installation
The EKL6-100 supports bi-directional connection, meaning it can be installed in either direction without affecting performance. This simplifies installation in retrofit applications where the existing wiring may not follow a standard orientation. It also reduces the risk of incorrect installation.
DIN rail mounting and multiple pole configurations
The EKL6-100 mounts on a standard 35mm DIN rail, the industry standard for electrical distribution panels. It's available in 2P(1P+N) and 4P(3P+N) configurations, with the neutral pole on the left. This allows you to match the RCCB to the circuit configuration — single-phase for lighting and small loads, three-phase for motors and large equipment.
Wide operating temperature range
The EKL6-100 operates reliably from -25°C to +40°C. This temperature range covers most industrial and commercial environments — from unheated equipment rooms to warm manufacturing floors. In high-humidity conditions, it performs up to 95% relative humidity.
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Questions facility managers and contractors ask
Q: What's the difference between Type AC, Type A, and Type B RCCBs?
A: Type AC RCCBs protect against alternating residual currents. Type A RCCBs protect against alternating currents and pulsed DC currents. Type B RCCBs offer advanced protection for AC, pulsed DC, and smooth DC residual currents. The EKL6-100 is available in Type AC and A configurations, suitable for most industrial and commercial applications. For applications with DC components — EV charging stations, solar inverters, VFDs — the EKL6-100B Type B provides comprehensive AC/DC leakage protection.
Q: How do I choose the right sensitivity for my application?
A: 30mA sensitivity is the standard for personnel protection — use it for general circuits where human contact is possible. 100mA sensitivity is suitable for equipment protection where nuisance tripping needs to be minimized. 300mA sensitivity is used for fire protection, guarding against sustained leakage currents that could generate heat. The EKL6-100 offers all three options.
Q: What is the short-circuit breaking capacity and why does it matter?
A: The short-circuit breaking capacity is the maximum fault current the RCCB can safely interrupt. The EKL6-100 offers 6kA standard and 10kA for higher-capacity installations. A higher breaking capacity means the RCCB can handle larger fault currents without being destroyed, providing more robust protection for high-capacity systems.
Q: Can the EKL6-100 be used with bi-directional power flow?
A: Yes. The EKL6-100 supports bi-directional connection, making it suitable for systems with bi-directional power flow such as solar PV installations with battery storage and EV charging stations with vehicle-to-grid capability.
Why ETEK Electric's EKL6-100 is built for industrial and commercial reliability
ETEK Electric has been a strong partner in the electrical protection industry, focusing on developing innovative green energy solutions and enhancing product safety and reliability. The EKL6-100 RCCB is engineered for robust electrical safety in demanding environments.
The EKL6-100 is certified to IEC61008-1, ensuring compliance with international safety standards. Its magnetic tripping mechanism delivers stable operation even in electrically noisy environments where other RCCBs might nuisance-trip. The wide operating temperature range of -25°C to +40°C and 95% humidity tolerance make it suitable for harsh environments.
The EKL6-100B Type B variant extends protection to AC, pulsed DC, and smooth DC residual currents, meeting the demands of modern electrical systems with DC components. For facility managers specifying protection for manufacturing plants, commercial complexes, HVAC systems, and data centers, the combination of magnetic reliability, flexible configuration, and international certification makes the EKL6-100 a practical choice.
Before you specify RCCBs for your next project, evaluate your protection requirements — current capacity, sensitivity needs, and environmental conditions. The EKL6-100 covers the range, so you can standardize on one reliable RCCB family across your facility.
Ready to specify EKL6-100 RCCBs for your industrial or commercial installation? Contact ETEK Electric for a quote or technical consultation. Share your current ratings, sensitivity requirements, and application type — their team can recommend the right EKL6-100 configuration for your specific needs.
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