Overview
The VIOX VOB3-63 is a miniature circuit breaker designed to provide overload and short-circuit protection in AC 50/60 Hz electrical circuits. The series covers rated currents from 1 A to 63 A and is available with B, C and D tripping curves for resistive, general-purpose and high-inrush loads. Its 1P, 2P, 3P and 4P configurations support lighting, socket, control and equipment circuits in residential, commercial and light industrial distribution systems. The 18 mm modular design is intended for DIN-rail installation in distribution boards, consumer units and control panels.
Features
- Overload and short-circuit protection for AC electrical circuits.
- Rated-current options from 1 A to 63 A.
- B, C and D tripping-curve options.
- 6 kA rated short-circuit breaking capacity.
- Compact 18 mm single-pole modular width.
- Clear contact-position indicator.
- Top or bottom power entry.
Models
| Pole Configuration | Overall Width |
|---|---|
| 1P | 17.4 ±0.2 mm |
| 2P | 35.2 ±0.3 mm |
| 3P | 52.8 ±0.4 mm |
| 4P | 70.4 ±0.5 mm |
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 | 2 kV for 1 minute |
Protection Data
| Parameter | Specification |
|---|---|
| Protection Functions | Overload and short-circuit protection |
| Rated Short-Circuit Breaking Capacity | 6 kA |
| Tripping Curves | B (3–5 In), C (5–10 In), D (10–20 In) |
| Agreed Non-Tripping Time | 1 hour at 1.13 In, cold state, for In ≤ 63 A |
| Agreed Tripping Time | 1 hour at 1.45 In, hot state, for In ≤ 63 A |
| Reference Temperature | 30 °C |
Mechanical and Installation Data
| Parameter | Specification |
|---|---|
| Number of Poles | 1P, 2P, 3P, 4P |
| Single-Pole Width | 18 mm nominal |
| Mounting | DIN rail |
| Mechanical Life | 20,000 operations |
| Electrical Life | 4,000 operations |
| Degree of Protection | IP20 |
| Wiring Capacity | 25 mm² |
| Power Entry | Top or bottom |
Standards
| Parameter | Specification |
|---|---|
| Compliant Standards | GB/T 10963.1, IEC 60898-1 |
Selection Guide
| Code Position | Meaning | Available Value |
|---|---|---|
| VO | Enterprise identification | VO |
| B | Miniature circuit breaker | B |
| 3 | Design series number | 3 |
| 60 | Shell frame current | 60 |
| Curve | Tripping curve | B, C or D |
| Current | 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 |
| Poles | Number of poles | 1P, 2P, 3P or 4P |
Catalog configuration example: VO-B-3-60-C-63A-4P
>Rated Current
Select one of the listed ratings from 1 A to 63 A according to the circuit design and conductor requirements.
Tripping Curve
Choose curve B for resistive loads, curve C for general-purpose loads or curve D for loads with high inrush current.
Number of Poles
Select a 1P, 2P, 3P or 4P configuration to match the required circuit arrangement.
Rated Voltage
Verify the selected pole configuration against the catalog voltage listing: 240/400 V for 1P and 2P, and 400 V for 2P, 3P and 4P.
Trip Curves
The VOB3-63 is available with three instantaneous tripping characteristics. The technical specification table lists the following current ranges as multiples of rated current (In).
| Curve | Instantaneous Tripping Range | Catalog Load Description |
|---|---|---|
| B | 3–5 In | Resistive loads |
| C | 5–10 In | General-purpose loads |
| D | 10–20 In | High-inrush loads |
Dimensions
Applications
- Residential distribution boards and consumer units.
- Commercial lighting and socket circuits.
- Light industrial distribution and control panels.
- Control and equipment circuits requiring overload and short-circuit protection.
Installation
- Install the device on a DIN rail inside a suitable distribution board, consumer unit or control panel.
- Use either top or bottom power entry according to the panel wiring arrangement.
- Confirm that the connected conductor is within the specified 25 mm² wiring capacity.
- Allow the required modular width for the selected 1P, 2P, 3P or 4P configuration.
Downloads
FAQ
What rated currents are available for the VOB3-63?
The available rated currents are 1, 2, 3, 4, 6, 10, 16, 20, 25, 32, 40, 50 and 63 A.
Which pole configurations are available?
The VOB3-63 is available in 1P, 2P, 3P and 4P configurations.
What is the VOB3-63 breaking capacity?
Its rated short-circuit breaking capacity is 6 kA.
Which tripping curves can be selected?
B, C and D curves are available for resistive, general-purpose and high-inrush loads respectively.
What are the rated frequency and listed voltages?
The rated frequency is 50/60 Hz. The catalog lists 240/400 V for 1P and 2P configurations and 400 V for 2P, 3P and 4P configurations.
Which standards are listed for the VOB3-63?
The catalog lists GB/T 10963.1 and IEC 60898-1 as compliant standards.
