Description
SKH HGM403 Series 300A / 400A Molded Case Circuit Breaker (MCCB)
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- Main 01 40
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- Main 02 40
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- Main 03 39
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- Main 04 38
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- Main 05 33
The SKH HGM403 is a high-performance molded case circuit breaker designed for reliable overload and short-circuit protection in low-voltage power distribution systems. Available in 300A and 400A rated currents, with 3-pole (3P) and 4-pole (4P) configurations, it complies with IEC 60947-2 standards and is widely used in industrial, commercial, and construction electrical projects.
Key Specifications
- Model: HGM403
- Rated Current (In): 300A / 400A
- Frame Size: 400AF
- Poles: 3P / 4P
- Rated Operational Voltage (Ue): Up to 690V AC
- Frequency: 50/60Hz
- Short-Circuit Breaking Capacity (Icu): Up to 65kA (at 380/415V)
- Trip Type: Thermal-Magnetic
- Protection Functions: Overload protection, short-circuit protection, instantaneous trip
- Insulation Voltage (Ui): 1000V
- Impulse Withstand Voltage (Uimp): 8kV
- Standards: IEC 60947-2
- Mounting: Surface / Panel mounting
Features & Benefits
- Robust & Durable Construction: Molded insulated case ensures high mechanical strength and electrical safety.
- Reliable Tripping: Precise thermal-magnetic trip unit guarantees accurate and stable protection.
- High Breaking Capacity: Effectively interrupts high short-circuit currents to protect equipment and wiring.
- Wide Voltage Compatibility: Suitable for global power systems (380V, 400V, 415V, 690V).
- Easy Installation & Operation: User-friendly toggle mechanism and standard busbar terminals.
- Long Service Life: Stable performance under harsh industrial environments.
Applications
- Main power distribution boards & switchgear
- Industrial machinery & motor circuits
- Commercial building electrical systems
- Generator output protection
- Construction site power supply
- Panel boards & control centers
Why Choose SKH HGM403 MCCB?
- Professional industrial-grade circuit protection
- Stable performance & long-term reliability
- Competitive factory price
- Full compliance with international standards
- Suitable for heavy-load and high-power applications
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