Delivering 35 kAIC at 480VAC, this 200A Sentron MCCB utilizes an interchangeable thermal-magnetic trip unit for reliable overcurrent protection. The 3-pole JD frame breaker provides long-time and instantaneous (LI) functions for commercial and industrial applications. It is designed for unit mounting in Siemens panelboards, switchboards, and motor control centers. This specific model is replaced by the 3VA5320-5EC31-0AA0, which requires a mounting strap kit. Includes line and load lugs.
What enclosures and panels are compatible with the JD63B200?
This breaker is designed for unit mounting in Siemens Sentron panelboards, switchboards, and motor control centers. It requires appropriate JD frame mounting hardware.
What wire sizes are accepted by the standard lugs on this breaker?
The standard lugs accept one or two 3/0 AWG to 500 kcmil copper wires, or one or two 4/0 AWG to 500 kcmil aluminum wires.
How does the adjustable magnetic trip function work?
The JD63B200 features a fixed thermal element for overload protection and an adjustable magnetic dial. This allows you to set the instantaneous short-circuit trip threshold to coordinate with downstream devices or motor inrush currents.
Is the JD63B200 100% rated for continuous operation?
No, the standard JD63B200 is rated for 80% continuous load. For a 100% rated application, a breaker with an H suffix is required, along with specific 90-degree Celsius copper wire and lug combinations.
What is the difference between the JD63B200 and JXD63B200?
The JD63B200 features an interchangeable trip unit and typically ships unassembled with standard line and load lugs. The JXD63B200 features a non-interchangeable trip unit and ships factory-assembled without lugs. Both share the same 200A, 3-pole JD frame footprint and ratings.
Does this breaker provide ground fault or equipment protection?
No, the JD63B200 is a standard thermal-magnetic breaker providing only long-time (overload) and instantaneous (short-circuit) protection. It does not include integral ground fault (GFCI) or equipment protection (GFEP) features.
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