Eaton Cutler Hammer MDLB3800T35W 800A 3 Poles Molded Case Circuit Breaker – Bolt On – 600VAC

Eaton Cutler Hammer MDLB3800T35W 800A 3 Poles Molded Case Circuit Breaker – Bolt On – 600VACThe Eaton Cutler Hammer MDLB3800T35W molded case circuit breaker is designed for advanced protection in industrial and commercial electrical distribution systems. Built with the MDLB frame style and equipped with an LSG (Long Time, Short Time, Ground Fault) non interchangeable trip unit, this breaker provides precise and adjustable protection against overloads, short circuits, and ground faults. With a maximum current rating of 800 amperes at 40C and

The Eaton Cutler-Hammer MDLB3800T35W molded case circuit breaker is designed for advanced protection in industrial and commercial electrical distribution systems. Built with the MDLB frame style and equipped with an LSG (Long-Time, Short-Time, Ground Fault) non-interchangeable trip unit, this breaker provides precise and adjustable protection against overloads, short circuits, and ground faults. With a maximum current rating of 800 amperes at 40°C and a 3-pole configuration, it supports electrical systems operating up to 600VAC at 50/60Hz. The breaker is also suitable for reverse feed applications, offering additional flexibility for various installation setups. Its bolt-on mounting design ensures secure installation in compatible panelboards and switchgear for reliable power distribution.

Product Specifications

• Brand: Eaton / Cutler-Hammer
• Model: MDLB3800T35W
• Breaker Type: Molded Case Circuit Breaker
• Frame Type: MDLB (M Frame Style)
• Trip Unit Type: LSG Non-Interchangeable Trip Unit
• Maximum Amperage Rating: 800 Ampere
• Number of Poles: 3 Pole
• Mounting Type: Bolt-On
• Frequency: 50/60 Hz
• Reverse Feed Capability: Suitable for Reverse Feed Applications
• Standard Lug Type: Not Included / Configurable

Technical Specifications

• LSG trip unit providing Long Delay, Short Delay, and Ground Fault protection
• Adjustable long delay pickup controlled by an adjustable rating plug
• Adjustable short delay pickup with I²t response or flat response time characteristics
• Adjustable ground fault pickup with configurable ground fault delay (flat response)
• Designed for high-performance protection in heavy-duty electrical systems
• Rugged molded case construction for durability and reliability in industrial environments

Voltage and Ratings

• Maximum AC Voltage: 600 VAC
• Interrupting Capacity:
• • 65 kA @ 240 VAC
  • 50 kA @ 480 VAC
  • 25 kA @ 600 VAC
• Trip Setting: Adjustable 5–10 times the continuous ampere rating
• Maximum Continuous Current: 800A at 40°C

Product Data

• Manufacturer: Eaton / Cutler-Hammer
• Product Series: MDLB Frame Series
• Configuration: Molded Case Circuit Breaker with LSG Trip Unit
• Connection Type: Bolt-On
• Warranty: 1 Year
• Application: Industrial power distribution, switchgear protection, and systems requiring adjustable overload, short circuit, and ground fault protection

Important Note

This circuit breaker requires a rating plug to operate, and the rating plug is not included with the unit. Please contact us to confirm availability and pricing if you need a rating plug installed prior to ordering. The product image shown represents a base model and is provided for identification purposes only. Accessories ordered together with the breaker can be installed at no additional cost—simply include your configuration requirements in the order comments during checkout.