High immunity Residual Current Circuit Breaker Type B
1. General
1.1 Function
VKL11B RCCB and VKL11B+ RCCB 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
RCCB | Residual Current Circuit Breaker
2. Technical parameters
| Type | B | B+ |
| Electrical |
| Design according to | IEC/EN 62423, IEC/EN 61008-1, OVE E8601 |
| VDE 0664-400 |
| Current test marks as printed onto the device |
| Rated voltage Un | 2P: 230/240V AC 4P: 400/415V AC |
| Rated frequency fn | 50/60Hz |
| Mode of operation | "A type functionality: voltage independent B and B+ type functionality: voltage dependent" |
| Operation voltage electronic | 50 – 264V AC |
| Voltage range test circuit | 2P: 184 – 264V AC 4P: 184 – 440V AC |
| Rated current In | 16A, 25A, 32A, 40A, 63A, 80A, 100A |
Rated residual operating current I△n | Instantaneous | 30mA, 100mA, 300mA, 500mA | 30mA, 100mA, 300mA |
| K-short time delayed (G, ASi) | 30mA, 100mA, 300mA, 500mA | 30mA, 100mA, 300mA |
| S- selective | 100mA, 300mA, 500mA | 100mA, 300mA |
| Sensitivity | Alternating, pulsed and smooth direct currents |
| High frequency up to 1 kHZ | High frequency up to 20kHZ |
| Rated insulation voltage Ui | 500 V |
| Rated impulse withstand voltage Uimp | 4 kV (1.2/50μs) |
| Rated conditional short-circuit current Inc | 10 kA |
| Rated making and breaking capacity Im | 1500 A |
| Peak withstand current | 3 kA (8/20 μs) surge current proof 5 kA (8/20 μs) surge current proof for type S |
| Electrical isolation | > 4 mm contact space |
Maximum back-up fuse In = 16-100A | Short circuit and overload protection 100 A gG/gL |
Endurance (operating cycles) | electrical components | ≥ 2000 |
| mechanical components | ≥ 4000 |
| Mechanical |
| Degree of protection | IP20 |
| Upper and lower terminals | open mounted / lift terminals |
| Terminal capacity | 1 - 25 mm2 |
| Terminal torque | 2 - 2.5 Nm |
| Busbar thickness | 0.8 - 2 mm |
| Operating temperature | -25°C ... +55°C |
| Storage- and transport temperature | -40°C ... +70°C |
| Resistance to climatic conditions | IEC/EN 61008 |
| Contact position indicator | mechanical red / green |
| Supply possibility | top or bottom |
| Mounting position | any |
3. Special features regarding the use of SIQUENCE universal
current-sensitive residual current circuit breaker (Type B and Type
B+)
3.1 Applications
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
4. Wiring diagrams
5. Tripping characteristics
B type
6. Dimensions (mm)
Product Description:
RCCB TYPE B is a high-performance residual current circuit breaker,
designed with rated making and breaking capacity Im of 1500A,
electrical endurance of ≥ 2000, degree of protection of IP20, rated
residual operating current I△n of 30mA, 100mA, 300mA, 500mA
(Instantaneous & K-short Time Delayed (G, ASi)); 100mA, 300mA,
500mA (100mA, 300mA, 500mA) and rated frequency of 50/60Hz. It
provides excellent protection against electric shock and fire
caused by earth leakage current and features high immunity. It is
ideal for use in residential, commercial and industrial
applications.
Features:
- Product Name: High immunity RCCB TYPE B
- Sensitivity: Alternating, Pulsed and Smooth Direct Currents (High Frequency up
to 1 KHZ)
- Mechanical Endurance: ≥ 4000
- Rated insulation voltage Ui: 500V
- Electrical Endurance: ≥ 2000
- Busbar thickness: 0.8 - 2 Mm
Applications:
Harok VKL11 Super Immunised RCCB TYPE B
Harok's VKL11 Super Immunised RCCB TYPE B is a highly-reliable
voltage dependent circuit breaker designed for use in various
indoor applications. With a rated insulation voltage of 500V, it
provides superior protection with a degree of protection IP20 and
electrical endurance of ≥ 2000. The circuit breaker is manufactured
with a rated frequency of 50/60Hz. It is also designed with a
voltage dependent mode of operation, making it a safe and durable
choice for a variety of applications.
Harok's VKL11 Super Immunised RCCB TYPE B is suitable for use in
various indoor environments ranging from residential and commercial
premises to industrial facilities. It is compliant with the IEC
61009-1 standard for residual current circuit breakers and is ideal
for use in applications where safety and reliability are of
paramount importance. Furthermore, it is an excellent choice for
areas where frequent switching is required, as it ensures accurate
and reliable protection from overcurrent and short circuit.
Harok's VKL11 Super Immunised RCCB TYPE B is a cost-effective
solution for a variety of applications. With its superior
protection, electrical endurance and reliable operation, it is an
excellent choice for a wide range of indoor applications.
Technical Parameters:
| Product Name | RCCB TYPE B |
|---|
| Rated Frequency | 50/60Hz |
|---|
| Rated impulse withstand voltage Uimp | 4 KV (1.2/50μs) |
|---|
| Mechanical Endurance | ≥ 4000 |
|---|
| Rated making and breaking capacity Im | 1500A |
|---|
| Degree of protection | IP20 |
|---|
| Rated voltage Un | 2P 230/240V~; 4P 400/415V~ |
|---|
| Rated current In | 16A, 25A, 32A, 40A, 63A, 80A, 100A |
|---|
| Sensitivity | Alternating, Pulsed And Smooth Direct Currents (High Frequency Up
To 1 KHZ) |
|---|
| Standard | IEC/EN 62423, IEC/EN 61008-1, OVE E8601 |
|---|
| Special Feature | Super immunised RCCB, High immunity RCCB |
|---|
Customization:
HAROK VKL11 High Immunity RCCB TYPE B
Brand Name: HAROK
Model Number: VKL11
Place of Origin: CHINA
Electrical Endurance: ≥ 2000
Rated current In: 16A, 25A, 32A, 40A, 63A, 80A, 100A
Degree of protection: IP20
Rated voltage Un: 2P 230/240V~; 4P 400/415V~
Rated residual operating current I△n: 30mA, 100mA, 300mA, 500mA
(Instantaneous & K-short Time Delayed (G, ASi)); 100mA, 300mA,
500mA (100mA, 300mA, 500mA)
Super immunised RCCB, High immunity RCCB.
Packing and Shipping:
Packaging and Shipping for RCCB TYPE B:
- The product is packed in a cardboard box with a protective foam
layer;
- The box is sealed with plastic tape;
- The box is labeled with product and company information;
- The product is shipped via air freight or ground freight, depending
on customer preference.
