The Hyundai HAT 25 Air Circuit Breaker represents a pinnacle of industrial electrical protection technology, delivering robust overcurrent safeguarding for high-power applications across marine and industrial environments. Manufactured by Hyundai Heavy Industries Co., Ltd., one of the world's most respected names in heavy industrial equipment, this 3-pole air circuit breaker is engineered to provide exceptional reliability when protecting circuits rated up to 2500 amps at 660 volts.

Air circuit breakers (ACBs) serve as critical components in electrical distribution systems, providing essential protection against overloads, short circuits, and earth faults. The Hyundai HAT 25 stands out in the industrial automation marketplace for its combination of high interrupting capacity, compact footprint, and proven performance in demanding operational conditions. At Auto2mation, we specialize in sourcing premium industrial automation components like the HAT 25 to keep your marine vessels, manufacturing facilities, and power distribution networks operating at peak efficiency.

Whether you are maintaining an existing switchgear installation, upgrading your power distribution infrastructure, or building a new marine electrical system, the Hyundai HAT 25 Air Circuit Breaker offers the dependability and performance specifications that engineering teams demand. With its 50-60Hz frequency compatibility and ambient temperature ratings of 40°C to 45°C, this breaker is designed to perform consistently in the challenging thermal environments commonly encountered in industrial and marine applications.

Key Features & Specifications

The Hyundai HAT 25 Air Circuit Breaker incorporates a comprehensive set of features that make it an ideal choice for demanding industrial and marine electrical protection applications. Every aspect of this breaker's design reflects Hyundai Heavy Industries' commitment to quality engineering and operational reliability.

• 3-Pole Configuration: Standard three-pole design for three-phase power system protection, ensuring comprehensive circuit safeguarding across all phases.
• 2500A Rated Current: Exceptionally high current rating suitable for main power distribution boards, large motor control centers, and high-capacity generator protection applications.
• 660V Voltage Rating: Designed for medium-voltage industrial power systems, providing reliable protection in marine switchboards and industrial substations.
• 50-60Hz Operation: Dual frequency compatibility ensures seamless integration into power systems worldwide, regardless of regional grid frequency standards.
• Ambient Temperature Range: Rated for operation at 40°C and 45°C ambient temperatures, making it suitable for engine rooms, industrial plants, and other thermally challenging environments.
• Compact Design: Despite its high current capacity, the HAT 25 features a space-efficient design that simplifies installation in crowded electrical panels and switchgear assemblies.
• International Standards Compliance: Manufactured to meet global safety and performance standards, ensuring reliable operation and regulatory compliance across jurisdictions.
• 137 Kg Weight: Substantial construction that reflects the robust internal components and arc chute systems designed for high-interrupting capacity applications.

Technical Specifications

Specification	Details
Product Name	Hyundai HAT 25 Air Circuit Breaker
Model Number	HAT 25
Brand Name	Hyundai
Manufacturer	Hyundai Heavy Industries Co., Ltd.
Poles	3
Rated Current	2500A
Voltage Rating	660V
Frequency	50-60Hz
Ambient Temperature	40°C, 45°C
Weight	137 Kg

Applications & Use Cases

The Hyundai HAT 25 Air Circuit Breaker finds application across a diverse range of industrial and commercial settings where reliable overcurrent protection is paramount. Its high current and voltage ratings make it particularly well-suited for heavy-duty applications that demand uncompromising electrical safety.

Marine Power Distribution

In marine environments, the HAT 25 serves as a primary protection device in main switchboards aboard cargo vessels, tankers, offshore platforms, and naval ships. The breaker's ability to operate at elevated ambient temperatures makes it ideal for engine room installations where heat generation from propulsion systems and auxiliary machinery creates challenging thermal conditions. Its robust construction withstands the vibration and humidity commonly encountered in maritime applications.

Industrial Manufacturing Plants

Manufacturing facilities with high-power demands rely on the HAT 25 for protecting main incoming feeders and large motor circuits. Steel mills, cement plants, chemical processing facilities, and automotive manufacturing lines all benefit from the breaker's 2500A capacity, which accommodates the substantial current draws associated with heavy industrial machinery and process equipment.

Power Generation and Transformer Protection

The HAT 25 provides essential protection for generators and transformers in both land-based and marine power generation systems. Its high interrupting capacity ensures safe clearance of fault currents that can occur during generator paralleling operations or transformer energization events. Power plants, co-generation facilities, and emergency backup power systems all represent ideal deployment scenarios for this breaker.

Commercial Building Infrastructure

Large commercial complexes, data centers, hospitals, and shopping malls utilize the HAT 25 in their main low-voltage switchgear assemblies. The breaker's compact design facilitates installation in space-constrained electrical rooms while its reliable performance ensures continuous power supply to critical building systems including HVAC, lighting, elevators, and life safety equipment.

Why Choose the Hyundai HAT 25 Air Circuit Breaker

Selecting the right air circuit breaker for your electrical protection needs requires careful evaluation of performance characteristics, manufacturer reputation, and total cost of ownership. The Hyundai HAT 25 excels across all these dimensions, making it a preferred choice for discerning engineers and facility managers worldwide.

Proven Manufacturer Heritage

Hyundai Heavy Industries Co., Ltd. brings decades of engineering expertise to every product bearing its name. As one of the world's largest shipbuilders and industrial equipment manufacturers, Hyundai has established an unmatched reputation for quality and reliability. The HAT 25 benefits from this legacy of excellence, incorporating design refinements derived from extensive field experience across diverse operating environments.

Comprehensive Protection Capability

The HAT 25 delivers multi-functional protection against overloads, short circuits, and earth leakage faults. Its adjustable tripping characteristics enable precise coordination with downstream protective devices, ensuring selective fault clearance that minimizes disruption to unaffected portions of the electrical distribution network. This coordination capability is essential in complex industrial and marine power systems where continuity of supply directly impacts operational productivity and safety.

Ease of Installation and Maintenance

Despite its substantial 137 Kg weight reflecting robust internal construction, the HAT 25 features a design optimized for straightforward installation and servicing. Accessible terminals, clearly marked connections, and modular internal components simplify commissioning and reduce maintenance downtime. For facilities operating under tight maintenance windows, these design characteristics translate directly into improved equipment availability and reduced lifecycle costs.

Compatibility & Integration

The Hyundai HAT 25 Air Circuit Breaker is designed for seamless integration into standard low-voltage switchgear assemblies from major manufacturers. Its dimensional footprint and mounting configuration comply with industry conventions, facilitating retrofit installations and simplifying spare parts management for facilities with mixed-manufacturer switchgear portfolios.

The breaker's 660V rating makes it compatible with standard industrial three-phase power systems operating at 380V, 415V, 480V, and 600V nominal voltages. This voltage flexibility ensures broad applicability across regions with different national electrical standards, from European 400V systems to North American 480V installations.

For process control and industrial automation applications, the HAT 25 can be equipped with auxiliary contacts, shunt trips, undervoltage releases, and motor operators that enable remote control integration with PLC and SCADA systems. These accessories transform the breaker from a standalone protective device into an intelligent component of a modern power management system.

Maintenance & Support

Proper maintenance is essential to ensuring the long-term reliability of any air circuit breaker. The Hyundai HAT 25 is designed with serviceability in mind, featuring accessible arc chutes, replaceable contacts, and clearly documented maintenance procedures. Auto2mation recommends following the manufacturer's recommended maintenance schedule, which typically includes periodic inspection of contact wear, lubrication of mechanical linkages, and verification of trip unit calibration.

When you purchase the Hyundai HAT 25 from Auto2mation, you benefit from our comprehensive 30-day warranty and dedicated technical support team. Our specialists can assist with installation guidance, troubleshooting advice, and coordination studies to ensure optimal protection settings for your specific application. We also offer free shipping on all orders, delivering your critical electrical components directly to your facility or vessel anywhere in the world.

Frequently Asked Questions

Q1: What is the maximum current rating of the Hyundai HAT 25 Air Circuit Breaker?

The Hyundai HAT 25 Air Circuit Breaker has a rated current of 2500 amps, making it suitable for high-power industrial and marine electrical distribution applications requiring substantial overcurrent protection capacity.

Q2: What voltage systems is the HAT 25 compatible with?

The HAT 25 is rated for 660 volts and is compatible with standard three-phase industrial power systems operating at 380V, 400V, 415V, 480V, and 600V nominal voltages across 50Hz and 60Hz frequencies.

Q3: Is the Hyundai HAT 25 suitable for marine applications?

Yes, the HAT 25 is well-suited for marine applications. Its ambient temperature rating of 40°C to 45°C, robust 137 Kg construction, and compliance with international safety standards make it ideal for engine room switchboards and marine power distribution systems.

Q4: Who manufactures the HAT 25 Air Circuit Breaker?

The HAT 25 is manufactured by Hyundai Heavy Industries Co., Ltd., a globally recognized leader in industrial equipment, shipbuilding, and heavy machinery manufacturing based in South Korea.

Q5: What type of warranty does Auto2mation provide for this breaker?

Auto2mation provides a comprehensive 30-day warranty on the Hyundai HAT 25 Air Circuit Breaker, along with free worldwide shipping and dedicated technical support from our experienced marine and industrial automation specialists.

Q6: What is the weight of the Hyundai HAT 25?

The Hyundai HAT 25 Air Circuit Breaker weighs 137 Kg, reflecting its robust internal construction designed for high-interrupting capacity and long service life in demanding industrial environments.

Q7: Can the HAT 25 be integrated with automation and control systems?

Yes, the HAT 25 can be equipped with auxiliary contacts, shunt trip coils, undervoltage releases, and motor operators that enable integration with PLC and SCADA systems for remote monitoring and control within modern industrial automation architectures.

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