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MINI RCBO | Residual Current Operated Circuit Breaker with over-current
protection
VRL11 MINI RCBO Residual Current Operated Circuit Breaker with over-current protection
(MCB sized 1 module with switched neutral)
1.1 Function
VRL11B mini RCBO type B and VRL11B+ mini RCBO type B+ are appearance design, compact structure, good reliability, and high safety. They are universal residual current circuit breaker with Overcurrent protection(RCBO).
Rated current up to 63A and for purposes of residual current protection, overcurrent (overload) and short circuit protection. When any personal electric shock occurs or the circuit leakage current exceeds the predetermined value, the RCBO can automatically cut off the power supply in a very short period of time, so that the safety of persons and electrical equipment can be operated.
Residual current circuit breaker with Overcurrent protection(RCBO) 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 with Overcurrent protection(RCBO) 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)
Tripping Curve B & C
2.2 Basic parameters
| Type | B | B+ | ||
| Electrical | ||||
| Design according to | IEC/EN 62423, IEC/EN 61009-1, 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 | 6A,10A,13A,16A, 20A,25A, 32A, 40A, 63A | |||
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 | |||
| Tripping Curve | B: (3-5)In, C: (5-10)In | |||
| Rated insulation voltage Ui | 500 V | |||
| Rated impulse withstand voltage Uimp | 4 kV (1.2/50μs) | |||
| Rated conditional short-circuit current Inc | 6KA,10 kA | |||
| Rated making and breaking capacity Im | 3000 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 | |||
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 61009 | |||
| Contact position indicator | mechanical red / green | |||
| Supply possibility | top or bottom | |||
| Mounting position | any | |||
2.3 The residual current breaking times
| In (A) | I△n (A) | Breaking time when the residual current assumes the following values (s) | ||||
| I△n | 2I△n | 5I△n | 5A, 10A, 20A, 50A, 100A, 200A, 500A(a) | I△t(b) | ||
| 6~63 | 0.01, 0.03, 0.1, 0.3, 0.5 | 0.1 | 0.05 | 0.04 | 0.04 | 0.04 |
a. For tests of 5A, 10A, 20A, 50A, 100A, 200A and 500A, the current values beyond the lower limit of over-current instantaneous tripping are not tested. B. Tests are done when I△t is equal to the lower limit current of over-current instantaneous tripping of type B and type C. | ||||||
2.4 The over-current protection characteristics
| No. | Rated current In (A) | Initial state | Test current (A) | Specified time (t) | Expected result | Remarks |
| a | 6 ~ 40 | Cold state | 1.13 In | t ≥ 1h | Non-tripping | |
| b | Immediately after sequence a | 1.45 In | t < 1h | Tripping | Increase to the specified current within 5s after test item a. | |
| c | Cold state | 2.55 In | 1s < t < 60s | Tripping | ||
| d | Cold state | 3 In | t ≥ 0.1s | Non-tripping | Curve B | |
| 5 In | t < 0.1s | Tripping | ||||
| 5 In | t ≥ 0.1s | Non-tripping | Curve C | |||
| 10 In | t < 0.1s | Tripping |
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)
3. Outline and installation dimensions (mm)
Residual Current Operated Circuit Breaker (RCBO) Type B is an innovative safety device designed for total protection of circuits from overloads, short-circuits, and leakage currents. It features top and bottom connection, 1P+N poles, and a frame size rated current Inm of 50A. It also offers a range of rated residual operating current from 0.01A, 0.03A, 0.1A, 0.3A, and rated current from 6A, 10A, 16A, 20A, 25A, 32A, 40A, and 50A.
The RCBO Type B Circuit Breaker offers a reliable and powerful protection system for residential and commercial applications. It is designed to detect any leakage current before it can cause damage, and it can be used in a variety of applications to protect both people and property. It is also easy to install and use, making it an ideal choice for those who want to ensure the safety of their electrical systems. This product is perfect for those who want to make sure their circuits are safe and secure.
HAROK's Residual Current Operated Circuit Breaker (RCBO) Type B is a reliable and efficient device for over-current and short-circuit protection. It is suitable for a wide range of applications, including residential, commercial, and industrial installations. It is designed to meet the latest standards IEC/EN 61009-1, AS/NZS 61009.1. This RCBO is available in various sizes and current ratings, from 50A to 4P. It is also classified by type of instantaneous tripping, with Type B (3 ~ 5) In, and Type C (5 ~ 10) In. It offers a maximum electrical life of 2000, and a maximum mechanical life of 2000. This product is manufactured in ISO 9001 certified plants, with strict quality control, ensuring superior quality and reliability.
HAROK's RCBO Type B is ideal for electrical wiring systems of all types, including residential, commercial, and industrial applications. It helps to protect cables and other connected devices from over-current and short-circuit. It also provides additional safety features, such as preventing fire and electric shock. With its reliable performance and long-lasting durability, this RCBO is perfect for a wide range of applications.
HAROK's RCBO Type B offers superior quality and reliability, and is a perfect choice for all types of electrical wiring systems. With its advanced features and high performance, it provides a reliable and efficient protection for your cables and devices. Whether it is for residential, commercial, or industrial applications, HAROK's RCBO Type B is the perfect choice for your electrical needs.
| Product Name | RCBO Type B |
|---|---|
| Classified by Type of Instantaneous Tripping | Type B: (3 ~ 5) In, Type C: (5 ~ 10) In |
| Rated Residual Operating Current | 0.01A, 0.03A, 0.1A, 0.3A |
| Rated Residual Non-Operating Current | 0.005A, 0.015A, 0.05A, 0.15A |
| Poles | 1P+N |
| Standard | IEC/EN 61009-1, AS/NZS 61009.1 |
| Rated residual making and breaking capacity I△m | 500A |
| Rated Current | 6A 10A 16A 20A 25A 32A 40A 50A |
| Mechanical Life | 2000 |
| Electrical Life | 2000 |
Brand Name: HAROK
Model Number: VRL22 2P,4P VRL11 VAL003 VKL003 VDL006 VRL01 VRL02 VRL03 VK007LE
1P-4P
Place of Origin: CHINA
Mechanical Life: 2000
Product Name: RCBO Type B
Poles: 1P+N
Rated Voltage: AC240V
Rated impulse withstand voltage Uimp: 6000V
HAROK RCBO Type B Residual Current Operated Circuit Breaker is designed to protect your electrical system from overcurrent and short circuit faults. It is rated for AC240V, and is designed to withstand up to 6000V rated impulse voltage. It is available in 1P+N poles and has a Mechanical Life of 2000. This product is manufactured in China and carries the HAROK brand name.
We provide technical support and service for our RCBO Type B product.
Our technical support team is available to respond to your inquiries any time of the day. We provide a 24/7 customer service hotline to help you with any product issues.
We also provide online tutorials and user manuals for our products. These materials are designed to help you set up and use our products with ease.
If you encounter any issues with our products, we offer full warranty coverage. We will repair or replace any defective products free of charge.
Packaging and Shipping for RCBO Type B:
A1: HAROK's RCBO Type B is a device that integrates residual current protection and over-current protection, providing short-circuit protection and overload protection for electrical circuit. It is available in various models, including VRL22 2P,4P VRL11 VAL003 VKL003 VDL006 VRL01 VRL02 VRL03 VK007LE 1P-4P, all of which are made in China.
A2: HAROK's RCBO Type B has a high level of protection and can identify leakage current quickly. It can provide effective protection against over-voltage, over-current, short-circuit and other faults. Additionally, it has a long service life and can be connected to a wide variety of circuit breakers.
A3: HAROK's RCBO Type B can be used in many places, such as in buildings, factories, and residential areas. It can also be used to provide short-circuit and overload protection for electrical circuits.
A4: HAROK's RCBO Type B has obtained CE, RoHS, and other safety certifications.
A5: HAROK provides a one-year warranty period for all of its RCBO Type B products.
