Eaton Cutler-Hammer KG3400S46 400A 3-Pole Generator Molded Case Circuit Breaker – Bolt-On – 600VAC – Thermal-Magnetic Interchangeable Trip (1000–2000A) with S46 Shunt Trip Option

The Eaton KG3400S46 is a K-frame molded case generator circuit breaker engineered for industrial and generator protection systems. It utilizes a thermal-magnetic interchangeable trip unit with a 1000–2000 Amp magnetic trip range, delivering dependable overload and short-circuit protection for generator-based power systems.

This configuration includes the S46 option, which adds a 12–24V DC shunt trip mounted on the right pole with rear exit wiring, enabling remote tripping capability for enhanced operational control and safety.

Rated for 400 Amperes at 40°C with 3 poles, this breaker is suitable for generator panels, switchgear assemblies, and backup power distribution systems.

Key Features

• K-Frame Generator Circuit Breaker designed for generator protection applications
• Thermal-Magnetic Interchangeable Trip Unit for reliable circuit protection
• Magnetic trip range: 1000–2000 Amp
• S46 Shunt Trip Option: 12–24V DC, Right Pole Mounted, Exiting Rear
• Bolt-On Connection for secure installation
• Line and Load End Terminals Standard

Specifications

• Manufacturer: Eaton / Cutler-Hammer
• Model: KG3400S46
• Frame Type: K
• Rated Current: 400 Ampere
• Poles: 3
• Maximum Voltage: 600 VAC
• Frequency: 50/60 Hz
• Trip Unit Type: Thermal-Magnetic Interchangeable
• Magnetic Trip Range: 1000–2000 Amp
• Interrupting Capacity:
• • 18 kA @ 240 VAC
  • 14 kA @ 480 VAC
  • 10 kA @ 600 VAC
• Connection: Bolt-On
• Standard Lug Type: Line and Load End Terminals
• Configuration Option:
  • S46: 12–24V DC Shunt Trip, Right Pole Mounted, Exiting Rear
• Warranty: One Year

Applications

• Generator protection systems
• Industrial switchgear installations
• Backup and emergency power systems
• Medium-capacity power distribution networks

Notes

The product image represents a base model for identification purposes only. If accessories are purchased with the breaker, they can be installed at no additional cost. Provide configuration details in the order comment box during checkout to ensure proper assembly.

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You may return items within 10 days of delivery for a refund.

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