Overview
The VOB3-63H is a miniature circuit breaker for overload and short-circuit protection in AC 50/60 Hz electrical circuits. It provides a rated short-circuit breaking capacity of 10 kA and covers rated currents from 1 A to 63 A. Available configurations include 1P, 2P, 3P and 4P versions with B, C or D tripping curves. The breaker is designed for DIN-rail installation in distribution boards, consumer units and control panels used in residential, commercial and light-industrial distribution systems. Rated-voltage options listed in the catalog extend up to 240/400 V or 400 V, depending on pole configuration.
Features
- Overload and short-circuit protection for AC 50/60 Hz circuits.
- Rated short-circuit breaking capacity of 10 kA.
- Rated-current range from 1 A to 63 A.
- B, C and D tripping-curve options.
- Available in 1P, 2P, 3P and 4P configurations.
- Compact 18 mm unipolar width with contact-position indication and top or bottom power entry.
Models
| Catalog designation | Pole configuration |
|---|---|
| VOB3-63H 1P | 1P |
| VOB3-63H 2P | 2P |
| VOB3-63H 3P | 3P |
| VOB3-63H 4P | 4P |
Specifications
Electrical Data
| Parameter | Specification |
|---|---|
| Rated frame current | 63 A |
| Rated current | 1, 2, 3, 4, 6, 10, 16, 20, 25, 32, 40, 50, 63 A |
| Rated voltage | 240/400 V (1P, 2P); 400 V (2P, 3P, 4P) |
| Rated frequency | 50/60 Hz |
| Rated insulation voltage (Ui) | 500 V |
| Rated impulse withstand voltage (Uimp) | 4 kV |
| Dielectric strength test voltage (1 min) | 2 kV |
| Rated short-circuit breaking capacity | 10 kA |
Protection Data
| Parameter | Specification |
|---|---|
| Tripping curves | B (3-5 In), C (5-10 In), D (10-20 In) |
| Degree of protection | IP20 |
Mechanical Data
| Parameter | Specification |
|---|---|
| Number of poles | 1P, 2P, 3P, 4P |
| Unipolar width | 18 mm |
| Mechanical life | 20,000 operations |
| Electrical life | 4,000 operations |
Installation Data
| Parameter | Specification |
|---|---|
| Installation | DIN rail |
| Wiring capacity | 25 mm² |
| Incoming method | Top or bottom power entry |
Environmental and Standards Data
| Parameter | Specification |
|---|---|
| Reference temperature | 30 °C |
| Compliant standards | GB/T 10963.1, IEC 60898-1 |
Selection Guide
| Code position | Meaning | Catalog value or options |
|---|---|---|
| VO | Enterprise identification | VO |
| B | Miniature circuit breaker | B |
| 3 | Design serial number | 3 |
| 60 | Shell frame current | 60 |
| B / C / D | Tripping curve | B, C or D |
| Rated-current code | Rated current | 1 A, 2 A, 3 A, 4 A, 6 A, 10 A, 16 A, 20 A, 25 A, 32 A, 40 A, 50 A or 63 A |
| H | Short-circuit breaking-capacity level code | H |
| 1P / 2P / 3P / 4P | Number of poles | 1P, 2P, 3P or 4P |
Rated Current
Select one of the catalog ratings from 1 A to 63 A according to the circuit rating and protection requirements.
Tripping Curve
Choose B, C or D according to the required instantaneous tripping range: B (3-5 In), C (5-10 In) or D (10-20 In).
Pole Configuration
Select a 1P, 2P, 3P or 4P configuration to match the circuit arrangement.
Rated Voltage
Confirm the catalog voltage for the selected pole configuration: 240/400 V is listed for 1P and 2P, while 400 V is listed for 2P, 3P and 4P.
Trip Curves
| Characteristic | Catalog value |
|---|---|
| Agreed non-tripping time at 1.13 In, cold state, for In ≤ 63 A | 1 h |
| Agreed tripping time at 1.45 In, hot state, for In ≤ 63 A | 1 h |
| B instantaneous characteristic | 3-5 In |
| C instantaneous characteristic | 5-10 In |
| D instantaneous characteristic | 10-20 In |
Dimensions
Applications
- Residential electrical distribution systems.
- Commercial distribution boards.
- Light-industrial control panels.
- Consumer units requiring overload and short-circuit protection.
Installation
- Install the selected configuration on a DIN rail in a suitable distribution board, consumer unit or control panel.
- Confirm that the circuit voltage, rated current, pole configuration and tripping curve match the selected breaker.
- Use conductors within the listed 25 mm² wiring capacity.
- Power entry may be made from the top or bottom.
Downloads
FAQ
What protection does the VOB3-63H provide?
It provides overload and short-circuit protection for AC 50/60 Hz electrical circuits.
What rated currents and tripping curves are available?
The catalog lists rated currents from 1 A to 63 A with B, C and D tripping curves.
Which pole configurations are offered?
The VOB3-63H is available in 1P, 2P, 3P and 4P configurations.
What is the rated short-circuit breaking capacity?
The rated short-circuit breaking capacity is 10 kA.
How is the VOB3-63H installed and connected?
It is designed for DIN-rail installation, has a listed wiring capacity of 25 mm² and permits top or bottom power entry.
Which standards are listed for the VOB3-63H?
The technical specifications list GB/T 10963.1 and IEC 60898-1.
