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VKL11 Earth Leakage Circuit Breaker(ELCB) type F
 

1. General

1.1 Function

VKL11F Earth Leakage Circuit Breaker TYPE F (ELCB TYPE F) is appearance design, compact structure,good reliability, and high safety.

The VKL11F ELCB Type F is defined according to IEC/EN 62423. It provides safe and reliable protection against sinusoidal residual currents and pulsating DC fault currents (like type A devices). It is also capable of handling residual currents with mixed frequencies of up to 1 kHz (10, 50, 1000 Hz) in accordance with the IEC 62423 standard. Type F ELCB maintain the standard functionality with superimposed smooth DC residual currents of up to 10 mA without affecting their standard functionality(However, smooth DC fault currents cannot be detected).

VKL11F ELCB Type F have additionally short-time delayed compared to ELCB Type A, and distinguish themselves from other devices thanks to their high resistance to power surges(have an increased surge current resistance of 3,000 A, prevent unwanted trippings e. g. due to surge currents, thunderstorms or operational leakage currents and thus increase system availability): this ensures minimal false tripping and a high degree of safety. They are available as ELCBs (2-pole or 4-pole up to 100 A) . With three versions for different residual currents (30mA,100mA and 300 mA), the ELCB type F functionality is voltage independent and can be used for fault and additional protection.

Note: Washing machines, hoovers, dishwashers, vibrators, hammer drills, heating and heat pumps, ballasts in lighting systems, air conditioners and welding equipment are all appliances that are in daily use in industry and households. As electronic controllers are increasingly used in such devices, residual currents occur that cannot be adequately detected by a type A ELCB. The reason for this is obvious: single-phase frequency converters are being used more and more frequently to control the motor speed in order to make the devices more energy efficient. These frequency inverters can generate residual currents with mixing frequencies other than 50 Hz by outputting a variable frequency in the order of 10 to 400 Hz. As a result, a ELCB Type A may not trip properly in the event of a fault, because it is affected by these mixing frequencies. This would mean that the ELCB will not possibly trip even if a fault occurs in the 50 Hz range.

Residual current circuit breaker VKL11F Type F solve all above problems!

Advantage:

• Suitable for use with single-phase frequency inverters

• Sensitive to alternating and pulsating DC fault currents of the mains frequency (Type A)

• Meets all requirements for RCCBs Type A, so that this can be replaced 1:1 by Type F

• Functionality maintenance with superimposed smooth DC residual currents of up to 10 mA (instead of only 6 mA, as with Type A)

• Sensitive to alternating residual currents with mixing frequencies unequal to 50 Hz (up to 1 kHz)

• High immunity against surge fault currents and mains voltage driven follow-on current pulses up to 3 kA

• Short-time delay of up to 10 ms prevents unwanted triggering by transient leakage currents

• Thunderstorm proof

• Small size for all rated currents

• High short-circuit current resistance of 10 kA

ELCB | Earth Leakage Circuit Breaker
 

1.2 Selection

Detectable wave form

Type F

Tripping is ensured for sinusoidal AC residual currents pulsed DC residual currents, alternating residual sinusoidal currents up to 1000Hz, maintain the standard functionality with superimposed smooth DC residual currents of up to 10 mA

Tripping sensitivity

30mA - additional protection against direct contact.

100mA - co-ordinated with the earth system according to the formula IΔn＜50/R, to provide

protection against indirect contacts;

300mA - protection against indirect contacts, as well as fire hazard.

Tripping time

Short time delay

1.3 Approvals and certificates: UKCA,CE

3.Dimensions (mm)

4.Technical parameters

ELCB TYPE EV, ELCB Type A Type AC Type ASi and ELCB Type A Type AC Type ASi are Earth Leakage Circuit Breakers (ELCB). These ELCBs offer protection grade of IP20, with the weight varies according to the product model. They have a very fast trip time of ≤0.1s, and have passed certifications: NF, SEMKO, VDE, KEMA. They are suitable for rated frequency of 50/60Hz.

Features:

• Product Name: ELCB Earth Leakage Circuit Breaker

• Insulation Voltage: ≥2KV

• Rated Voltage: 240V/415V

• Rated Breaking Capacity: 10KA

• Rated Current: 6A-100A

• Trip Time: ≤0.1s

Applications:

HAROK's Earth Leakage Circuit Breaker (ELCB TYPE F) VKL11 is a reliable and durable product that is certified by NF, SEMKO, VDE, KEMA and is compliant with all standards of safety. It is made in CHINA and requires a minimum order quantity of 1000. The packaging details are PAPER CARTON and the delivery time is 4-6 weeks after payment. Payment terms are FOB NINGBO or SHANGHAI and the product has a supply ability of 100,000 PCS per month. This Earth Leakage Circuit Breaker has a rated frequency of 50/60Hz, a rated sensitivity of 30mA/100mA/300mA, an operating environment temperature of -25℃~+50℃, and a protection grade of IP20.

Technical Parameters:

Customization:

• Brand Name: HAROK

• Model Number: VKL11

• Place of Origin: CHINA

• Certification: NF, SEMKO, VDE, KEMA

• Minimum Order Quantity: 1000

• Packaging Details: PAPER CARTON

• Delivery Time: 4-6 weeks after payment

• Payment Terms: FOB NINGBO or SHANGHAI

• Supply Ability: 100,000 PCS PER MONTH

• Rated Sensitivity: 30mA/100mA/300mA

• Protection Grade: IP20

• Rated Voltage: 240V/415V

• Trip Time: ≤0.1s

• Rated Breaking Capacity: 10KA

• ELCB TYPE F

Packing and Shipping:

ELCB Earth Leakage Circuit Breaker will be packaged and shipped in accordance with industry best practices for secure and safe transport. The product will be packaged in a secure and robust cardboard and bubble wrap to ensure maximum protection. All packages will be clearly marked with the product description and shipping address.

We use trusted and reliable couriers to ensure safe and timely delivery of the product. We guarantee that all orders will be shipped within 24 hours of the payment being received.