OMB4-63 6kA / 10kA Miniature Circuit Breaker for Higher Fault-Level Projects
OMB4-63 is positioned for low-voltage AC projects that require a stronger miniature circuit breaker option than basic standard-duty models. With 6kA / 10kA selection, it is suitable for buyers who need to match project specifications, commercial distribution panels and applications where higher short-circuit interruption capacity may be requested.
This page is written for project buyers, electrical distributors and panel builders who already have technical requirements or need help comparing OMB series options. OOHMAGE supports communication around rated current, pole configuration, curve type, breaking capacity, packaging, destination market and document requirements before quotation.
Why Choose OMB4-63
- Higher breaking-capacity option: suitable when the project calls for stronger short-circuit interruption capability.
- 6kA / 10kA positioning: gives buyers flexibility for different commercial and industrial distribution needs.
- Thermal-magnetic trip design: supports overload and short-circuit protection in modular installations.
- Project quotation support: OOHMAGE can help compare OMB1, OMB3 and OMB4 according to order requirements.
Recommended Applications
Choose OMB4-63 when a basic MCB is not enough and the specification calls for stronger interruption capacity. For standard distribution-board applications with lower fault-level requirements, OMB1-63 or OMB3-63 can also be compared.
Specification
| Number of Poles | 1P,2P, 3P, 4P |
| Rated Current (A) | 1, 2, 3, 4, 5, 6, 8, 10, 13, 16, 20, 25, 32, 40, 50, 63 |
| Rated Operational Voltage | 1P: 240/415V 2P, 3P, 4P: 415V |
| Trip Unit Technology | Thermal-magnetic |
| Curve Code | B, C, D |
| Network Frequency | 50/60Hz |
| Breaking Capacity | Icn=10000A/Ics=7500A |
| Energy Limiting Class I2t: | 3 comforming to IEC/EN 60898-1 |
| [Ui] Rated Insulation Voltage | 500V AC |
| [Uimp] Rated Impulse Withstand Voltage | 4000V |
| Mechanical Durability | 20000 cycles |
| Electrical Durability | 10000 cycles |
| Tightening Torque | M5 2.5N.m Ⅱ |
| IP Degree of Protection | IP20 comforming to IEC 60529 IP40(modular enclosure) comforming to IEC 60529 |
| Ambient Air Temperature for Operation | -5~40°C |
| EU RoHS Directive | Compliant EU RoHS Declaration |
| Pollution Degree | 2 comforming to IEC/EN 60898-1 |
| Upper Wiring Lower Wiring |  1-25mm²  |
Dimensions
Quotation Checklist
- Required breaking capacity: 6kA or 10kA
- Rated current, poles and curve type
- Application environment and panel requirement
- Quantity and delivery expectation
- Required certificates or technical documents
Common Questions About OMB4-63
When should I choose a 10kA MCB?
Choose a 10kA MCB when the project specification or expected fault level requires higher short-circuit interruption capacity.
Can OOHMAGE help compare OMB3-63 and OMB4-63?
Yes. Send the rated current, poles, breaking capacity and application requirement, and OOHMAGE can help confirm a suitable series.
Is OMB4-63 suitable for export orders?
Yes. OOHMAGE supports export-order communication, packaging discussion and document confirmation according to the selected model.
OMB4-63 High-Breaking-Capacity MCB Selection and Applications
OMB4-63 High-Breaking-Capacity MCB is designed for circuits requiring 6kA or 10kA miniature circuit-breaker options. Correct selection should be based on prospective fault current, rated current, curve, poles and voltage. OOHMAGE supplies project quantities with model confirmation, technical documentation support and one-year warranty terms.
- Application fit: Confirm the electrical system and installation environment before final model selection.
- Documentation: CE and ISO-related documentation is available for the promoted product range, subject to exact model confirmation.
- Quality control: Products are checked according to the applicable inspection process before shipment.
Common Questions
When is a 10kA option considered?
Use the calculated prospective fault current and applicable installation standard to determine the required breaking capacity.
What project data should be shared?
Provide system voltage, rated current, curve, poles, fault level, quantity and application.
Compare the complete OOHMAGE MCB range, or send your ratings, quantity and application to info@oohmage.com for model confirmation and a quotation.
OMB4-63 Miniature Circuit Breaker for Distributor and Project Orders
OMB4-63 is a DIN rail miniature circuit breaker for projects that need stable MCB supply with 6kA or 10kA breaking capacity options. As a miniature circuit breaker supplier, OOHMAGE can confirm the suitable model based on rated current, pole configuration, curve type and order quantity.
What should I send before ordering?
Provide the system voltage, rated current, tripping curve, poles, required breaking capacity, application and quantity. OOHMAGE can help confirm the suitable OMB4-63 configuration for regular supply or volume order discussion.
Request Quote
Tell us your specifications, quantity, or application scenario and we will reply with a tailored quote.
