Description
The Hyundai HBS-803 (Part Number: HBS-803, 800A Rating) is a high-capacity 3-pole molded case circuit breaker (MCCB) engineered for electrical distribution and motor protection in heavy industrial, marine, and commercial power architectures. Manufactured by Hyundai Electric, this robust protective device provides reliable overload, short-circuit, and fault current interruption to safeguard critical electrical circuits.
📋 Product Datasheet & Parameters
- 🔌 Product Type: Molded Case Circuit Breaker (MCCB) / 3-Pole Power Switch
- 🏷️ Brand & Manufacturer: Hyundai Electric
- 📦 Part Number / MPN: HBS-803 (Series: Susol / HBS Frame)
- ⚙️ Series Compatibility: Hyundai industrial distribution switchboards, motor control centers (MCC), and marine switchboards
- 🌍 Country of Origin: South Korea / Global industrial manufacturing standards
- 📏 Form Factor: Compact heavy-duty molded resin housing for panel or switchboard backplate mounting
- ⚖️ Net Weight: Approximately 9.50 kg
- ⚡ Rated Current (In): 800 A
- ⚡ Number of Poles: 3-Pole (3P)
- ⚡ Operating Voltage: Standard industrial low-voltage power distribution rails (Up to 690 VAC system voltage)
- 🌐 Data Interface: Hardwired heavy-duty busbar and terminal lug connections (optional auxiliary and alarm contact blocks available)
- 🛡️ Operational Environment: Industrial-grade enclosure rated for ambient temperature variations, mechanical vibration, and high short-circuit interrupting capacity
❓ Frequently Asked Questions (Q&A)
- Q: What is the primary function of the Hyundai HBS-803 circuit breaker? A: It serves as a main or feeder circuit breaker that automatically interrupts electrical power during overload or short-circuit conditions to protect downstream equipment and personnel.
- Q: Is the trip unit adjustable on the 800A model? A: Yes, Hyundai HBS series breakers typically feature adjustable thermal-magnetic or electronic trip units to fine-tune overload and short-circuit pickup thresholds for specific application requirements.
- Q: What installation precautions are required? A: Electrical power must be completely locked out and tagged out (LOTO) prior to installation or maintenance. Torque specifications for busbar terminal connections must be strictly followed to prevent overheating.
🔍 Recommended Alternative Series & Models
- Hyundai Susol Series MCCB – ABS / HBS Frame
- Hyundai HiAS Air Circuit Breaker (ACB) Series
- ABB Sace Tmax T Series MCCB – T7 / T8 (800A)
- Schneider Electric Compact NSX Series MCCB – NSX800
- Siemens 3VA Molded Case Circuit Breaker Series – 800A Frame
- Eaton Cutler-Hammer Series G / MDL Circuit Breaker (800A)
- LS Electric Susol Series MCCB – TS800
- GE Spectra RMS Molded Case Circuit Breaker Series
- Mitsubishi Electric WS-V Series MCCB – NF800-SEW
- Merlin Gerin Compact MCCB Series

