Square D Model 6 MCC buckets are designed for draw-out removal. Here is a step-by-step guide — and why you should let professionals handle it.
We Handle Removal: 713-466-1900One of the defining features of the Square D Model 6 MCC is its draw-out bucket design. Unlike fixed-mounted MCCs where breakers and starters are permanently wired into the section, the Model 6 uses plug-in buckets that can be physically withdrawn from the section without disconnecting any wiring. The bucket disconnects from the bus stabs when it is pulled out, and reconnects when it is pushed back in.
This design allows maintenance technicians to remove and replace a failed starter or breaker while the rest of the MCC remains energized — a significant operational advantage in industrial facilities that cannot afford extended downtime.
While the draw-out design is intended to allow bucket removal without de-energizing the entire MCC, this does NOT mean the work is safe for untrained personnel. The bus bars inside the MCC section remain energized at all times. Improper bucket removal can result in arc flash, electrocution, or equipment damage. All work on energized electrical equipment must be performed by qualified electricians following NFPA 70E arc flash safety protocols.
The following is a general overview of the bucket removal process for informational purposes. This work must be performed by a licensed electrician.
Before any work begins, a qualified electrician must perform an arc flash risk assessment per NFPA 70E. This determines the required PPE (personal protective equipment) for the specific MCC section and bucket being removed. Minimum PPE typically includes arc-rated clothing, face shield, insulated gloves, and hearing protection.
Open the front door of the bucket compartment. Turn the circuit breaker or disconnect handle to the OFF position. Verify that the load side of the circuit is de-energized using a calibrated voltage tester before proceeding.
Square D Model 6 buckets use a control wiring plug that must be disconnected before the bucket can be withdrawn. This plug typically disconnects by pulling it straight out from the bucket. Label the plug and its mating connector to ensure correct reconnection.
The bucket is held in place by a latch or retaining mechanism. Release the latch and pull the bucket straight out from the section. The bucket will slide on rails and the bus stabs will disengage as it is withdrawn. Support the bucket's weight as it comes out — larger buckets can weigh 50 to 150 pounds.
If you are selling your Square D Model 6 MCC, you do not need to remove the buckets yourself. Our crew handles all removal, disconnection, and loading at no cost to you. We have the tools, equipment, and trained personnel to safely remove MCC equipment from any facility. Call us at 713-466-1900 and we will take care of everything.