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Siemens MD63T800 800A 600V 3-Pole Circuit Breaker Trip Unit

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ManufacturerSiemens

Part numberMD63T800

Type Interchangeable Trip Unit

Manufacturer Siemens

Series Sentron

Frame Compatibility MD, HMD

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800A Current Rating 600V Voltage Rating Long-Time and Instantaneous Trip Functions Interchangeable Design Suitable for MD/HMD Frames Sentron Series Reliability

Product description

The Siemens MD63T800 is an interchangeable circuit breaker trip unit designed for the Sentron Series MD and HMD frame molded case circuit breakers. This unit offers an 800 Amp current rating and a 600V voltage rating. It is equipped with Long-Time (LI) and Instantaneous trip functions, providing comprehensive protection against overloads and short circuits. Its interchangeable nature allows for customization of protection settings according to application needs.

This trip unit is essential for high-capacity industrial applications requiring robust electrical fault protection, such as in power distribution, large motor control, and heavy manufacturing environments. It ensures the safety and reliability of electrical systems by preventing damage from overcurrent conditions.

Stanlo Automation, a veteran-owned distributor of surplus industrial parts, offers the Siemens MD63T800 trip unit. We are committed to providing quality components and expert service to support your automation needs and keep your operations running smoothly.

Technical specifications

Type	Interchangeable Trip Unit
Manufacturer	Siemens
Series	Sentron
Frame Compatibility	MD, HMD
Poles	3
Ampere Rating	800A
Voltage	600V AC
Trip Functions	LI (Long-Time & Instantaneous)
Interrupting Rating	25kAIC @ 600V

Common applications

High-Capacity Industrial Protection

Power Distribution

Heavy Manufacturing

Motor Control

Switchgear

Compatible systems

Siemens MD Frame Circuit Breakers Siemens HMD Frame Circuit Breakers

Also known as

MD63T800 Siemens Trip Unit Sentron MD Trip Unit 800A Circuit Breaker Trip

Replaces / compatible with

This trip unit is designed for Siemens MD and HMD frame circuit breakers. It replaces specific trip unit models within the Sentron series. Refer to Siemens documentation for precise compatibility.

Technical note

Expert tip

Ensure correct installation and calibration of the MD63T800 trip unit within its designated Siemens MD or HMD breaker frame to guarantee accurate protection performance.

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Frequently asked questions

What type of trip functions does the Siemens MD63T800 circuit breaker trip unit offer?

The Siemens MD63T800 trip unit provides Long-Time (LI) and Instantaneous trip functions. These are critical for protecting industrial equipment from both sustained overloads and sudden short-circuit events.