VKL11 RCCB Type B+
1. General
1.1 Function
A residual current circuit breaker (RCCB) is an electrical device
that is designed to protect against electrical shock caused by
ground faults. It works by detecting any imbalance in the
electrical current flowing through a circuit and immediately
shutting off the power to prevent any potential injury or damage.
RCCBs are particularly important in areas where water and
electricity are in close proximity, such as bathrooms and kitchens.
They are also commonly used to provide additional safety protection
in damp or wet locations, as well as in industrial settings where
high voltage or high current circuits are used. Overall, RCCBs
provide a crucial layer of protection against electrical hazards
and are an essential component of any safe and effective electrical
system.
VKL11B RCCB and VKL111B+ 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 | 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:
The High immunity RCCB TYPE B is a Voltage Dependent RCCB with
rated impulse withstand voltage Uimp of 4 KV (1.2/50μs). This Super
immunised RCCB has a busbar thickness of 0.8 - 2 Mm and rated
frequency of 50/60Hz. It is capable of providing high reliability
and superior protection against electric shock and providing a safe
environment. The RCCB TYPE B is the perfect choice for any
application where safety is a priority.
Features:
- Product Name: RCCB TYPE B (Residual Current Circuit Breaker Type B)
- Electrical Endurance: ≥ 2000
- Mechanical Endurance: ≥ 4000
- Degree of protection: IP20
- Busbar thickness: 0.8 - 2 Mm
- Sensitivity: Alternating, Pulsed and Smooth Direct Currents (High
Frequency up to 1 KHZ)
Applications:
HAROK's VKL11 Residual Current Circuit Breaker (RCCB) Type B is a
reliable and trusted device designed to protect people from
electric shock and fire hazards caused by earth leakage. It is
certified to comply with IEC/EN 62423, IEC/EN 61008-1, and OVE
E8601 standards and has a rated impulse withstand voltage Uimp of 4
KV (1.2/50μs). It is rated with a voltage of 2P 230/240V~; 4P
400/415V~ and an insulation voltage Ui of 500V. In addition, its
rated residual operating current I△n is 30mA, 100mA, 300mA, and
500mA (Instantaneous & K-short Time Delayed (G, ASi)), and 100mA,
300mA, and 500mA (100mA, 300mA, 500mA). It is suitable for a wide
range of applications and is ideal for protecting against electric
shock and fire risks caused by earth leakage. Its reliable design
and high-quality components make it an excellent choice for
residential, commercial, and industrial applications.
Technical Parameters:
| Product Name | RCCB TYPE B |
|---|
| Busbar thickness | 0.8 - 2 Mm |
| Electrical Endurance | ≥ 2000 |
| Rated impulse withstand voltage Uimp | 4 KV (1.2/50μs) |
| Rated Frequency | 50/60 Hz |
| Rated making and breaking capacity Im | 1500A |
| Rated residual operating current I△n | 30mA, 100mA, 300mA, 500mA (Instantaneous & K-short Time Delayed (G,
ASi)); 100mA, 300mA, 500mA (100mA, 300mA, 500mA) |
| Mode of operation | Voltage Dependent |
| Rated insulation voltage Ui | 500V |
| Sensitivity | Alternating, Pulsed And Smooth Direct Currents (High Frequency Up
To 1 KHZ) |
Customization:
HAROK VKL11 High Immunity RCCB
- Brand Name: HAROK
- Model Number: VKL11
- Place of Origin: CHINA
- Rated Frequency: 50/60Hz
- Mechanical Endurance: ≥ 4000
- Rated insulation voltage Ui: 500V
- Rated residual operating current I△n: 30mA, 100mA, 300mA, 500mA
(Instantaneous & K-short Time Delayed (G, ASi)); 100mA, 300mA,
500mA (100mA, 300mA, 500mA)
- Standard: IEC/EN 62423, IEC/EN 61008-1, OVE E8601
HAROK VKL11 High Immunity RCCB is a type B residual current circuit
breaker, which is designed in accordance with IEC/EN 62423, IEC/EN
61008-1, and OVE E8601 standards. It has a rated frequency of 50/60
Hz and a rated insulation voltage of 500V. Its mechanical endurance
is ≥ 4000, and its rated residual operating current is I△n: 30mA,
100mA, 300mA, 500mA (Instantaneous & K-short Time Delayed (G,
ASi)); 100mA, 300mA, 500mA (100mA, 300mA, 500mA).
Packing and Shipping:
Packaging and Shipping for RCCB TYPE B:
We package RCCB TYPE B in a sturdy cardboard box to ensure safe
delivery. The box is filled with foam to provide an extra layer of
protection. The shipping method chosen will depend on the size and
weight of the shipment, and may include air, land or sea transport.
