VKL11 Автоматический выключатель с управлением по остаточному току 4P (RCCB)

Introduction to the VKL11 RCCB

The VIOX VKL11 Residual Current Circuit Breaker (RCCB) represents the cutting edge in electrical safety technology. Designed with precision engineering and manufactured to meet the highest international standards, the VKL11 RCCB provides reliable protection against residual currents in residential, commercial, and industrial applications.

As a critical safety component in modern electrical installations, the VKL11 RCCB constantly monitors the balance between phase and neutral currents, instantly disconnecting the circuit when a potentially dangerous imbalance is detected. This rapid response mechanism protects people from electric shock hazards and property from electrical fires, making it an essential device for any electrical installation.

1. General Features and Functions

1.1 Primary Function

The VKL11 RCCB is engineered to:

• Control electric circuits efficiently and reliably
• Protect people against indirect contacts and provide additional protection against direct contacts
• Protect installations against fire hazards due to insulation faults

These residual current circuit breakers are specifically designed for use in housing, tertiary sector, and industrial applications where electrical safety is paramount.

1.2 Selection Guide and Types

Detectable Wave Form Options

AC Class: The AC class VKL11 RCCB is ensured for slowly increasing sinusoidal AC residual currents, providing standard protection for most common household and light commercial applications.

A Class: The A class model is engineered for both sinusoidal AC residual currents and pulsed DC residual currents, offering enhanced protection regardless of whether these currents are applied suddenly or increasing slowly.

Тип ASi: The most advanced option in the VKL11 range, the ASi type includes:

• Full type A features plus Si: Super immunized (High immunity to unwanted tripping)
• Protection for both sinusoidal AC residual currents and pulsed DC residual currents
• Special G/SI type with filters against spurious tripping caused by harmonics and transient surges
• Ability to withstand the impact of 8/20μs surge 3000A while maintaining stable status
• Both G/KV function and SI function for comprehensive protection

1.3 Certifications and Compliance

The VKL11 RCCB series meets rigorous international standards, evidenced by UKCA and CE approvals and certificates, ensuring compliance with the most stringent safety regulations.

2. Technical Parameters

3. Tripping Sensitivity and Performance

Advanced Tripping Sensitivity Options

The VKL11 RCCB offers multiple sensitivity levels to suit different application requirements:

• 10 мА: Precision instrument leakage protection and bathroom use, offering the highest level of protection for areas where water and electricity are in close proximity
• 30 мА: Additional protection against direct contact, ideal for residential applications
• 100 мА: Co-ordinated with the earth system according to the formula I∆n < 50R, to provide protection against indirect contacts
• 300 мА/500 мА: Protection against indirect contacts, as well as fire hazard, typically used in industrial applications

Breaking Time Performance

The VKL11 RCCB offers three distinct breaking time performances to match specific application requirements:

Мгновенный

It ensures instantaneous tripping (without time-delay), with response times ≤100ms for standard (Normal type) applications where immediate disconnection is critical.

Short Time Delay Si, G, KV

With response times between 10ms~300ms (ASI, G, KV type), it ensures any tripping at least 10ms. The Si: Super immunized feature provides high immunity to unwanted tripping, making this option ideal for installations where momentary fluctuations might occur.

Selective S

The Selective option ensures total discrimination with a nonselective RCD placed downstream, with response times between 150ms~500ms (S type). This makes it perfect for cascaded installations where discrimination between devices is essential.

4. Applications and Benefits

Ideal Applications for the VKL11 RCCB

The VKL11 RCCB is suitable for a wide range of applications, including:

• Residential Installations: Providing essential protection in homes, apartments, and living spaces
• Коммерческие здания: Ensuring safety in offices, retail spaces, and public facilities
• Light Industrial Applications: Protecting equipment and personnel in workshop environments
• Specialized Areas: Offering enhanced protection in bathrooms, kitchens, and other locations where water and electricity coexist
• Distribution Boards: Integration into main and sub-distribution boards for comprehensive electrical safety

Key Benefits of Choosing the VKL11 RCCB

• Повышенная безопасность: Protects against both direct and indirect electrical contacts
• Fire Prevention: Fast disconnection helps prevent electrical fires caused by insulation faults
• Versatile Protection: Available in various types (AC, A, ASi) to suit different application requirements
• Type Options: From standard AC detection to advanced ASi with high immunity to unwanted tripping
• Международное соответствие: Meets rigorous standards with UKCA and CE certifications
• Надежность: Engineered for long electrical and mechanical life (≥2000 operations)
• Широкий рабочий диапазон: Functions effectively from -25°C to 55°C ambient temperature
• Простая установка: Mounts on standard 35mm DIN rail with fast clip device

5. Installation and Dimensions

Габаритные и установочные размеры (мм)

The VKL11 RCCB is designed for convenient installation in distribution boards with standardized dimensions that facilitate easy integration:

• Монтаж: На DIN-рейку EN 60715 (35 мм) с помощью быстрозажимного устройства
• Connection: From top and bottom for flexible installation options
• Terminal connection type: Compatible with both Cable and Pin-type busbar
• Terminal capacity for cable: 25-35 mm² (18-3/18-2 AWG)
• Terminal capacity for busbar: 10/16 mm² (18-8/18-5 AWG)
• Tightening torque: 2.5 N·m (22 in-lbs) for secure connections

6. Selection Guide: Choosing the Right VKL11 RCCB

Step 1: Determine the Required Type Based on Waveform Detection

• Type AC: For basic applications with standard sinusoidal AC current protection
• Type A: For applications with both AC and pulsed DC components
• Type ASi: For installations requiring high immunity to unwanted tripping, with protection against harmonics and transient surges

Step 2: Select the Appropriate Current Rating (In)

Choose from: 16A, 25A, 32A, 40A, 63A, 80A, or 100A based on the circuit’s maximum expected operational current.

Step 3: Determine the Required Sensitivity (I∆n)

• 10 мА: For highest protection level (precision instruments, bathrooms)
• 30 мА: For standard personnel protection in residential applications
• 100 мА: For coordinated protection with earthing systems
• 300mA: For fire prevention and industrial applications

Step 4: Choose Between 2P and 4P Versions

Select 2P (2-pole) for single-phase applications (240V) or 4P (4-pole) for three-phase applications (415V).

Step 5: Consider Breaking Time Requirements

• Normal type: For standard instantaneous operation (≤100ms)
• ASI, G, KV type: For applications requiring short time delay (10ms~300ms)
• S type: For selective coordination (150ms~500ms)

7.Outline and installation Dimensions(mm)

8. Maintenance and Testing Recommendations

While the VKL11 RCCB is designed for reliable, long-term operation, regular testing is recommended to ensure optimal performance:

• Test the RCCB monthly by pressing the test button to verify proper mechanical operation
• Conduct annual inspections by qualified personnel to check for signs of overheating, damage, or loose connections
• Verify tripping times and sensitivity using appropriate test equipment as part of scheduled electrical maintenance
• Replace the RCCB if the test button fails to trip the device or if any physical damage is observed
• Document all tests and maintenance activities for compliance with local electrical regulations

9. Integration with Electrical Systems

Main Distribution Board Installation

The VKL11 RCCB integrates seamlessly into main distribution boards, providing comprehensive protection for the entire electrical installation. In this configuration, it typically protects multiple circuits downstream.

Sub-Distribution Board Installation

For more targeted protection, the VKL11 can be installed in sub-distribution boards, protecting specific areas or equipment. This arrangement allows for selective coordination with upstream protective devices.

Cascade Configuration

In larger installations, VKL11 RCCBs can be arranged in a cascade configuration, with selective (S-type) devices upstream and standard devices downstream, ensuring proper discrimination and preventing unnecessary power interruptions.

Conclusion: Why Choose the VKL11 RCCB

The VIOX VKL11 Residual Current Circuit Breaker represents the ideal balance of advanced protection, reliability, and versatility. With its comprehensive range of types, sensitivities, and performance characteristics, it offers tailored electrical safety solutions for virtually any application.

By choosing the VKL11 RCCB, you’re investing in a safety device that not only meets current international standards but is built with the quality and durability to provide years of dependable service. Whether for residential, commercial, or industrial installations, the VKL11 delivers the peace of mind that comes from knowing your electrical systems are protected by industry-leading technology.

For more information about the VKL11 RCCB or to discuss your specific application requirements, please contact our technical support team or visit our website.