Enhance electrical safety with the MCB JCB3-80H
JCB3-80H specification matrix
| Field | Reviewed listing | Confirm for the order |
|---|---|---|
| Current | 1–80 A | Exact step and code |
| Breaking rating | 10 kA version | Voltage and applicable declaration |
| Curve | B/C/D | Corresponding time-current curve |
| Poles | Single through four-pole options | Actual neutral and phase arrangement |
| Protection | Overload and short circuit | Separate residual-current requirements |
| Proposed use | Main check |
|---|---|
| Motor branch | Starting envelope and curve |
| Distribution board | Terminals and assembly acceptance |
| High fault level | Applicable interruption rating |
| Electronic equipment | Any required RCD arrangement |
Review the miniature circuit breaker range using the load duty, pole arrangement and fault-level study.
Check the JCB3-80H rating against the board
W9’s current listing identifies 1–80 A options, B/C/D curves and a 10 kA version. Compare the applicable rating at the actual voltage with the prospective short-circuit current. Do not assume a higher headline kA value makes the device a universal replacement for another MCB.
The exact pole arrangement, terminal system, busbar geometry and assembly requirements must also fit. Select the curve using starting behaviour and fault-disconnection calculations. If the circuit requires residual-current protection, the MCB label does not supply it.
In today’s fast-paced world, ensuring the safety and reliability of electrical systems is crucial. Whether in domestic installations or and industrial power distribution systems, the MCB JCB3-80H miniature circuit breaker is a reliable and efficient solution. With short-circuit and overload protection and a breaking capacity of up to 10kA, this circuit breaker is designed to provide peace of mind and protect electrical equipment from potential hazards.
The MCB JCB3-80H offers a wide current range, from 1A to 80A, suitable for a wide range of applications. 1-, 2-, 3-, and 4-pole options further enhance its versatility to meet diverse installation needs. Additionally, B, C, or D curve options allow for customization based on specific requirements, ensuring optimal performance in a variety of electrical settings. This flexibility makes the MCB JCB3-80H a versatile and adaptable choice for a wide range of electrical installation.
Compliance with international standards is a key element of any electrical component, and the MCB JCB3-80H excels in this regard. It complies with the IEC 60898-1 standard, ensuring that stringent electrical safety and performance requirements are met. This certification underscores the reliability and quality of the MCB JCB3-80H, ensuring its confidence in its ability to effectively protect electrical systems.
The MCB JCB3-80H miniature circuit breaker is a robust and reliable solution for ensuring electrical safety in a wide range of applications. Its comprehensive features, including short-circuit and overload protection, high breaking capacity, contact indicators, and compliance with international standards, make it ideal for domestic, commercial, and industrial installations. With its versatility, reliability, and unwavering adherence to stringent standards, the MCB JCB3-80H fully embodies our commitment to electrical safety and performance.
Frequently asked questions
Does JCB3-80H include earth-leakage detection?
Its listed MCB functions are overload and short circuit. Provide the required residual-current arrangement separately.
Is the listed 10 kA value enough for every board?
No. Confirm its voltage and applicable product declaration, then compare with the installation fault level and any approved backup arrangement.
Can I change the curve to prevent a motor-start trip?
Only after reviewing starting current, conductors and fault-disconnection requirements. A higher pickup threshold can change protection performance.
What should be checked before replacing another MCB?
Verify ratings, curve, poles, terminals, busbars and assembly acceptance. Matching rail mounting and amperes is insufficient.
References
- IEC 60898-1 consolidated edition — AC household and similar circuit-breakers.
- IEC 60947-2:2024 — industrial circuit-breaker scope.
- IEC 60364-6:2016 — installation verification.
To confirm an MCB order code, contact W9 Group with the curve, current, voltage, poles and prospective fault current.