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Siemens MXD63B600 Molded Case Circuit Breaker

  • 600A
  • 3 Pole
  • Unit Mount
Siemens MXD63B600
Molded Case Circuit Breaker
Brand Siemens
SKU MXD63B600
Select Item Condition
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  • 600A
  • 3 Pole
  • Unit Mount

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Siemens MXD63B600 - 600A 3 Pole Molded Case Circuit Breaker

Siemens MXD63B600 - 600A 3 Pole Molded Case Circuit Breaker

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$4,573.27 In Stock

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Description

Engineered for industrial applications, the MXD63B600 is a 600A, 3-pole molded case circuit breaker from the Siemens Sentron family. It features a robust MD frame and provides reliable thermal-magnetic protection with Long-Time and Instantaneous (LI) trip functions. This unit-mount breaker installs into Siemens Sentron S4 and S5 panelboards, as well as SB-series switchboards and motor control centers. Rated for 65kAIC at 240VAC, it includes an adjustable magnetic trip (3000-6000A).

Specifications

Key specifications
Brand Siemens
Series MXD6
Amperage 600A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 65kA @ 240VAC, 50kA @ 480VAC, 25kA @ 600VAC, 25kA @ 250VDC
Fit and installation
Frame Type MD
Terminal Type Lugs
For Use With Siemens Sentron Panelboards (Type S4, S5), Switchboards (SB1, SB2, SB3), Motor Control Centers
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Lug Kits, Rotary Handle, Motor Operator
Accessories Mounting Hardware
Standards CSA C22.2 No. 5, IEC 60947-2, UL 489
Approval CSA, HACR, UL
Temp Rating 40C
Construction Features Reverse Feed, Non-Interchangeable Trip, Trip-Free Mechanism, HACR Rated

Product FAQs

5 answers
Which Siemens enclosures and panelboards accept the MXD63B600 breaker?

This MD frame breaker is compatible with Siemens Sentron Type S4 and S5 panelboards, SB1, SB2, and SB3 switchboards, as well as Siemens Motor Control Centers.

What is the difference between the MXD63B600 and the HMXD63B600?

The MXD63B600 is the standard-tier interrupting version rated at 50kAIC at 480VAC. The HMXD63B600 is the high-interrupting version rated at 65kAIC at 480VAC. Both are 600A, 3-pole MD frame breakers with identical physical dimensions.

How is the trip unit configured on the MXD63B600?

It utilizes a thermal-magnetic trip unit with Long-Time and Instantaneous (LI) protection. The thermal overload setting is fixed at 600A, while the magnetic short-circuit trip is adjustable to coordinate with downstream devices.

Which lug kits are compatible with this breaker?

As an MD frame breaker, it accepts standard Siemens lug kits such as the TA3K500 for aluminum or copper wire, and the TC2K500 for copper-only applications. Lugs are typically installed on both the line and load sides.

Is the MXD63B600 suitable for DC power systems?

Yes, it is rated for DC applications up to 250VDC with a maximum interrupting capacity of 25kAIC.

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