Hager Circuit Breaker - HMC499 - HMC
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Product Information
Full details
The Hager HMC499 circuit breaker is designed for electrical enclosure accessories, offering reliable circuit protection for systems operating up to 415 V AC. Its key benefit lies in a constant tightening torque mechanism that ensures secure connections, even as conductors settle over time, preventing loose connections and enhancing safety. A potential caveat to consider is its specific AC input voltage limitation and the need for professional installation. This guide will help you understand its features, usage, and maintenance.
All features
| Series | HMC |
|---|---|
| Model Part Number | HMC499 |
| Brand | HAGER |
Extended Product Information
FAQs
What is the main advantage of the constant tightening torque feature?
The constant tightening torque ensures that the connection remains secure over time, even as the compressed conductor naturally settles or changes slightly, preventing loose connections that can lead to overheating and failure.
What is the AC input voltage rating for the HMC499?
The Hager HMC499 circuit breaker is rated for an AC input voltage of 415 V.
Does this circuit breaker comply with environmental standards?
Yes, the HMC499 complies with RoHS (Restriction of Hazardous Substances) directives, indicating it is manufactured with reduced hazardous materials.
Can I install this circuit breaker myself?
Installation of circuit breakers should always be performed by a qualified and licensed electrician to ensure safety and compliance with electrical codes.
What does the locking option in the zero position provide?
The locking option in the 'off' (zero) position is a safety feature that prevents the circuit breaker from being accidentally switched back on, which is important during maintenance or troubleshooting.
Is this model part of a specific series?
Yes, the HMC499 is part of Hager's HMC series of circuit protection devices.
Troubleshooting
Circuit breaker trips frequently.
Check for overloaded circuits. Verify that the connected load does not exceed the breaker's rated capacity. Inspect connections for any signs of looseness or damage, despite the constant tightening torque feature.
Difficulty locking the breaker in the zero position.
Ensure the breaker is fully in the 'off' position before attempting to lock it. Check for any physical obstructions around the locking mechanism.
No power after installation.
Confirm that the circuit breaker is in the 'on' position. Verify that the incoming power supply is correctly connected and active. Ensure all connections are secure, as recommended during installation.
Pros and Cons
Pros
- Ensures reliable and long-lasting electrical connections due to constant tightening torque.
- Enhances safety with a locking mechanism in the zero position.
- Built to professional standards within the established Hager HMC series.
- Compliant with RoHS standards for environmental safety.
Cons
- Specific AC input voltage rating of 415 V may not suit all applications.
- Requires professional installation for safe and effective operation.
- Single unit quantity means multiple purchases are needed for larger installations.
Setup, Compatibility & Care
Setup: Installation of the Hager HMC499 circuit breaker should be performed by a qualified electrician. It requires proper mounting within a compatible electrical enclosure and secure connection to the electrical system, ensuring the conductor is correctly terminated according to electrical codes and standards. The 415 V AC input voltage must be matched to the system's requirements.
Compatibility: This circuit breaker is designed as an electrical enclosure accessory and is compatible with systems operating at 415 V AC. It is part of the Hager HMC series, suggesting compatibility with other Hager components designed for this range. Always verify specific enclosure and system compatibility before installation.
Care: To ensure the longevity and reliable performance of the HMC499, regular visual inspections for dust accumulation or physical damage are recommended. While the design minimizes maintenance needs related to connection tightness, ensure the surrounding enclosure is kept clean and free from obstructions. Avoid using harsh chemicals for cleaning; a dry or slightly damp cloth is sufficient for external cleaning.