Super Immunised Residual Current Device Type B

Super immunised Residual Current Device Type B

• General

1.1 Function

VKL11B RCD and VKL11B+ RCD is appearance design, compact structure, good reliability, and high safety. They are universal residual current circuit breaker.

Residual current circuit breaker type B are suitable for domestic as well as industrial applications, where are used frequency inverters, PV plant, EV chargers and similar elements. B type provides a sensitivity to residual AC, pulsating and smooth DC current, together with high frequencies up to 1 kHz.

Residual current circuit breaker type B+ meet full type B feature , with additional tripping values are defined up to 20KHZ and they are below 420mA.

They are based on electronic technology, which brings advantages of more accurate measuring of residual current and, as a consequence, reduction of unwanted tripping. These devices also do not suffer with magnetization of the tripping unit.

1.2 Selection

Detectable wave form

Type B

Tripping is ensured for sinusoidal AC residual currents pulsed DC residual currents, alternating residual sinusoidal currents up to 1000Hz, pulsating direct residual currents and for smooth direct residual currents, whether applied suddenly or increasing slowly.

Type B+

Meet full type B feature , with additional tripping values are defined up to 20KHZ and they are below 420mA

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

Instantaneous It ensures instantaneous tripping(without time-delay).

Short time delay

Selective (time delay)

1.3 Approvals and certificates

• Technical parameters

• Special features regarding the use of SIQUENCE universal current-sensitive residual current circuit breaker (Type B and Type B+)
  • Applications

3.1 Typical applications that are vulnerable to smooth DC residual currents:

- Frequency converters with a three-phase connection

- Medical equipment such as X-ray equipment or CT machines

- Photovoltaic or UPS systems

- Connection points (wall boxes, charging stations) for electric vehicles

- Elevator controllers

- Pipeline trace heating

- Test setups in laboratories

- Construction sites in accordance with BGI 608 information leaflet (Electronic equipment

on construction sites)

- Charging stations for battery-powered forklift trucks

- Cranes of all kinds

- Mixing plants if relevant loads are connected

- Variable-speed machine tools, such as milling and grinding machines or lathes

• Wiring diagrams

• Tripping characteristics

.B type

• Dimensions (mm)
• 

RCD TYPE B is a high-immunity RCD with a protection degree of IP20. It has a rated voltage of 2P: 230/240V AC; 4P: 400/415V AC and a rated storage temperature of -40℃~+70℃. Its rated residual operating current is 30mA, providing additional protection against electric shock.

The RCD TYPE B is made of high-quality materials, designed to be highly reliable and durable, providing maximum safety against electric shock and other electrical hazards. It is also designed to be easy to install and maintain.

The RCD TYPE B is ideal for residential and commercial applications, providing reliable and cost-effective protection against electric shock, electric fire hazards, and other electrical hazards. It is also suitable for industrial applications, where it can provide protection against high-power electric shock, electric fire hazards, and other electrical hazards.

The RCD TYPE B is an excellent choice for any application where safety and reliability are the primary requirements. It is designed to provide maximum protection against electric shock and other electrical hazards, while providing reliable and cost-effective protection.

Features:

• Product Name: Residual Current Device TYPE B
• Protection Degree: IP20
• Rated Voltage: 2P: 230/240V AC; 4P: 400/415V AC
• Rated Storage Temperature: -40℃~+70℃
• Rated residual operating current I△n: 30mA, 100mA, 300mA, 500mA
• Rated Insulation Voltage: 500V
• Super immunised Residual Current Device

Applications:

HAROK's VKL11 RCD TYPE B is a residual current device that provides protection against electric shocks and fire caused by indirect contact and insulation faults. It is certified by CE, CB, NF, ISI and SEMKO with a minimum order quantity of 5000. It comes in a paper carton and takes 4-6 weeks for delivery after payment. Payment is accepted through FOB NINGBO or SHANGHAI with a supply ability of 100,000 PCS PER MONTH. It has a rated insulation voltage of 500V, protection degree of IP20, rated residual non-operating time of 0.3s, rated frequency of 50Hz/60Hz and rated current of 30mA.

Technical Parameters:

Customization:

Packing and Shipping:

Packaging and Shipping for Residual Current Device TYPE B:

The Residual Current DeviceTYPE B will be packaged in a sturdy cardboard box and sealed with a waterproof bag. The package will include instructions and safety warnings. The package will be shipped using a reliable courier service, ensuring that it arrives in perfect condition.