Overview
The VIOX VRL22B is a Type B residual current circuit breaker with overcurrent protection for AC 50/60 Hz installations. It combines residual-current, overload and short-circuit protection and detects sinusoidal AC, pulsating DC and smooth DC residual currents. Type B covers residual-current frequencies up to 1 kHz, while the Type B+ variant extends detection up to 20 kHz. The 2P and 4P configurations are intended for applications incorporating frequency converters, photovoltaic and UPS systems, medical equipment, elevator controllers, trace-heating systems and variable-speed machinery.
Features
- Type B detection of sinusoidal AC, pulsating DC and smooth DC residual currents.
- Type B frequency range up to 1 kHz.
- Type B+ frequency range up to 20 kHz.
- B, C and D overcurrent tripping curves.
- Instantaneous, K short-time-delayed and S selective versions.
- 6 kA or 10 kA rated conditional short-circuit current.
- Electrical isolation through a contact gap greater than 4 mm.
Models
| Model | Poles | Maximum Rated Current | Rated Voltage |
|---|---|---|---|
| VRL22B | 2P | 63 A | 230/240 V AC |
| VRL22-40B | 4P | 40 A | 400/415 V AC |
| VRL22-63B | 4P | 63 A | 400/415 V AC |
| Variant | Residual-Current Detection | Frequency Range | Additional Characteristic |
|---|---|---|---|
| Type B | Sinusoidal AC, pulsating DC and smooth DC residual currents | Up to 1 kHz | Universal current-sensitive RCBO |
| Type B+ | Full Type B residual-current detection capability | Up to 20 kHz | Additional tripping values below 420 mA as specified by VDE 0664-400 |
Specifications
Electrical Data
| Parameter | Specification |
|---|---|
| Rated Current | 6, 10, 13, 15, 16, 20, 25, 32, 40, 50, 63 A |
| Rated Voltage | 2P: 230/240 V AC; 4P: 400/415 V AC |
| Rated Frequency | 50/60 Hz |
| Electronic Operating Voltage | 50-264 V AC |
| Test-Circuit Voltage Range | 2P: 184-264 V AC; 4P: 184-440 V AC |
| Rated Insulation Voltage | 500 V |
| Rated Impulse Withstand Voltage | 4 kV, 1.2/50 μs |
Protection Data
| Parameter | Specification |
|---|---|
| Residual-Current Variants | Type B; Type B+ |
| Rated Residual Operating Current | 30, 100, 300, 500 mA |
| Tripping Curves | B: 3-5 In; C: 5-10 In; D: 10-20 In |
| Rated Conditional Short-Circuit Current | 6 kA or 10 kA; energy-limiting class 3 for B and C curves |
| Rated Making and Breaking Capacity | 3,000 A |
| Peak Withstand Current | 3 kA, 8/20 μs; 5 kA, 8/20 μs for Type S |
Installation and Environmental Data
| Parameter | Specification |
|---|---|
| Degree of Protection | IP20 |
| Terminal Type | Open-mounted / lift terminals |
| Terminal Capacity | 1-25 mm² |
| Terminal Tightening Torque | 2-2.5 N·m |
| Busbar Thickness | 0.8-2 mm |
| Electrical Isolation | > 4 mm contact gap |
| Operating Temperature | -25 °C to +55 °C |
| Storage and Transport Temperature | -40 °C to +70 °C |
Mechanical Data
| Parameter | Specification |
|---|---|
| Electrical Endurance | ≥ 5,000 operating cycles |
| Mechanical Endurance | ≥ 5,000 operating cycles |
Standards
| Variant | Applicable Standards |
|---|---|
| Type B | IEC/EN 62423; IEC/EN 61009-1; OVE E 8601 |
| Type B+ | IEC/EN 62423; IEC/EN 61009-1; OVE E 8601; VDE 0664-400 |
Selection Guide
| Code Element | Meaning | Available Values |
|---|---|---|
| V | VIOX enterprise identification | V |
| RL | RCBO product family | RL |
| 22 | Design series | 22 |
| B | Residual-current type | B |
| Curve | Overcurrent tripping curve | B, C or D |
| Current | Rated current | 6-63 A |
| Sensitivity | Rated residual operating current | 30-500 mA |
| Poles | Number of poles | 2P or 4P |
Catalog configuration example: V-RL-22-B-C-32A-30mA-2P
Type B or B+
Select Type B for residual-current frequencies up to 1 kHz or Type B+ where the cataloged frequency range up to 20 kHz is required.
Operating Variant
Confirm whether instantaneous, K short-time-delayed or S selective operation is required and select the corresponding residual-current rating.
Rated Current
Select from 6 A to 63 A, observing the 40 A limit of the VRL22-40B model.
Poles and Voltage
Select 2P for 230/240 V AC or 4P for 400/415 V AC circuits.
Trip Curves
| Test Current | Specified Time | Result | Curve |
|---|---|---|---|
| 1.13 In | t ≥ 1 h | Non-tripping | B, C |
| 1.45 In | t < 1 h | Tripping | B, C |
| 2.55 In | 1 s < t < 60 s | Tripping | B, C |
| 3 In | t ≥ 0.1 s | Non-tripping | B |
| 5 In | t < 0.1 s | Tripping | B |
| 5 In | t ≥ 0.1 s | Non-tripping | C |
| 10 In | t < 0.1 s | Tripping | C |
| At IΔn | At 2 IΔn | At 5 IΔn | At IΔt |
|---|---|---|---|
| 0.10 s | 0.05 s | 0.04 s | 0.04 s |
Dimensions
Applications
- Frequency converters and variable-speed machinery.
- Photovoltaic and UPS systems.
- Medical equipment and elevator controllers.
- Trace-heating systems.
Installation
- Use open-mounted or lift terminals with conductors from 1 mm² to 25 mm².
- Tighten terminals to 2-2.5 N·m.
- Use busbars with a thickness of 0.8-2 mm when applicable.
- Match the 2P or 4P configuration to the specified circuit voltage.
- Confirm the required Type B or Type B+ residual-current response before selection.
FAQ
What residual currents does the VRL22B detect?
Type B detects sinusoidal AC, pulsating DC and smooth DC residual currents.
What is the difference between Type B and Type B+?
Type B covers residual-current frequencies up to 1 kHz. Type B+ extends the range to 20 kHz and provides additional tripping values below 420 mA as specified by VDE 0664-400.
Which rated currents are available?
The listed rated-current options are 6, 10, 13, 15, 16, 20, 25, 32, 40, 50 and 63 A.
Which pole configurations are available?
The VRL22B family is available in 2P and 4P configurations.
Which applications are listed for this Type B RCBO?
The catalog identifies frequency converters, photovoltaic and UPS systems, medical equipment, elevator controllers, trace heating and variable-speed machinery.
