Hyundai HiBS 403 is a 400AF, 3-pole molded case circuit breaker (MCCB) designed for low-voltage power distribution and circuit protection. It uses a thermal-magnetic trip mechanism and is available with rated currents from 250 A to 400 A.
Key Features
- 400AF frame size for high-current industrial applications.
- 3-pole construction suitable for three-phase electrical distribution.
- Rated current options of 250 A, 300 A, 350 A and 400 A.
- Thermal-magnetic protection for overload and short-circuit protection.
- High short-circuit interrupting capability, up to 42 kA at 380/415 VAC.
- 690 V operational voltage and 750 V insulation voltage.
Typical Applications
- Main incomer protection in distribution panels.
- Industrial MCC and power distribution boards.
- Protection of large motors and industrial loads.
- Transformer secondary-side protection.
- Generator and electrical utility distribution systems.
- Manufacturing and process industries.
