Receiving, Handling, and Storing the MCC

For ease of use during transportation and installation, MCCs are constructed in shipping blocks of up to three vertical sections. The main horizontal bus of all shipping blocks is spliced together at the job site with the use of captive horizontal splice bars.

Before shipment from the factory, the MCC is inspected visually, electrically, and mechanically by professional quality control analysts. Certification of quality control testing is available upon request.

After leaving Quality Control, each shipping block is carefully packaged and attached to a skid (see Motor Control Center Packaged in Sideways Position (Typical for Most Sections) and Motor Control Center Packaged in Upright Position (Typical for Extra Heavy Sections such as 18-Pulse Drives or as Customer Option)).

Motor Control Center Packaged in Sideways Position (Typical for Most Sections)

Motor Control Center Packaged in Upright Position (Typical for Extra Heavy Sections such as 18-Pulse Drives or as Customer Option)

Receiving the MCC

Inspect the MCC for damage as soon as it is received. Delivery of the equipment to a carrier at any of the Schneider Electric plants or other shipping point constitutes delivery to the purchaser. Title and all risk of loss or damage in transit shall pass to the purchaser at that time. Refer to the Schneider Electric Conditions of Sale for more details. All claims for loss and damage must be made by the purchaser to the carrier.

If the packaging material is removed, replace it for protection until the MCC is installed.

Handling the MCC

WARNING
HAZARD OF FALLING EQUIPMENT Use extreme caution when moving sections. The MCC has a high center of gravity, which may cause it to tilt. Do not attempt to lift or attach lifting means to sections equipped with pull boxes. Failure to follow these instructions can result in death, serious injury, or equipment damage.

Equipment Needed

Adequate equipment, such as a fork truck, crane, or rods and pipe rollers, must be available for handling MCCs. Approximate MCC Shipping Weights lists the approximate shipping weights of sections equipped with typical units. If you need more exact shipping weights for your set-up, contact the MCC Technical Assistance Group at 800-634-2003.

Approximate MCC Shipping Weights

Enclosure Type		Depth in. (mm)	One Section lb. (kg)	Two Sections lb. (kg)	Three Sections lb. (kg)
1, 1 A, 12		15 (381)	600 (272)	1200 (544)	1800 (816)
3R Non-Walk-In		15 (381) (26.6/676 overall)	900 (408)	1800 (816)	2700 (1225)
1, 1 A, 12		20 in. (508)	750 (340)	1500 (680)	2250 (1021)
3R Non-Walk-In		20 (508) (31.6/803 overall)	1050 (476)	2100 (953)	3150 (1429)
18-Pulse Drive	50 wide (1270)	20 (508)	—	2107 (956)	—
18-Pulse Drive	65 wide (1651)	20 (508)	—	2816 (1277)	—

Moving the MCC

As shown in Approximate MCC Shipping Weights, weights vary by enclosure type and depth.

WARNING
RISK OF INJURY OR EQUIPMENT DAMAGE While moving the MCC: Follow all manufacturer-specified instructions and precautions when moving heavy equipment. Verify that the moving equipment is rated to handle the weight. Fork trucks, when available, provide a convenient method of moving MCCs (see Moving the MCC with a Fork Truck). When removing an MCC from a shipping pallet, carefully balance and secure it using a properly rated strap. Failure to follow these instructions can result in death, serious injury, or equipment damage.

WARNING

RISK OF INJURY OR EQUIPMENT DAMAGE

While moving the MCC:

Follow all manufacturer-specified instructions and precautions when moving heavy equipment.
Verify that the moving equipment is rated to handle the weight.
Fork trucks, when available, provide a convenient method of moving MCCs (see Moving the MCC with a Fork Truck).
When removing an MCC from a shipping pallet, carefully balance and secure it using a properly rated strap.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

NOTE: Standard sections are packaged and shipped in a sideways position, as shown in Motor Control Center Packaged in Sideways Position (Typical for Most Sections) and Moving the MCC with a Fork Truck. Extra heavy sections, such as 18–pulse drives, are packaged and shipped in an upright position, as shown in Motor Control Center Packaged in Upright Position (Typical for Extra Heavy Sections such as 18-Pulse Drives or as Customer Option). MCC sections can also be packaged and shipped in an upright position at the customer’s request.

Moving the MCC with a Fork Truck

Each shipping block has lifting angles for handling the MCC with overhead cranes.

WARNING
RISK OF INJURY OR EQUIPMENT DAMAGE Take the following precautions when using a crane: Handle MCCs in the upright position only. Select rigging lengths to compensate for any unequal weight distribution. Do not exceed the 45° maximum angle between the vertical and lifting cables (see Proper Use of Sling to Lift MCCs). Use only slings with properly rated hooks or shackles. Do not pass ropes or cables through the holes in the lifting angle(s). Failure to follow these instructions can result in death, serious injury, or equipment damage.

WARNING

RISK OF INJURY OR EQUIPMENT DAMAGE

Take the following precautions when using a crane:

Handle MCCs in the upright position only.
Select rigging lengths to compensate for any unequal weight distribution.
Do not exceed the 45° maximum angle between the vertical and lifting cables (see Proper Use of Sling to Lift MCCs).
Use only slings with properly rated hooks or shackles. Do not pass ropes or cables through the holes in the lifting angle(s).

Failure to follow these instructions can result in death, serious injury, or equipment damage.

Proper Use of Sling to Lift MCCs

After the shipping section is in place, its lifting angle(s) may be removed and discarded. To help prevent the entrance of foreign materials, replace all hardware that secured the lifting angle(s).

Model 6 MCCs with the arc-rated option must have the lifting angle removed to maintain the arc rating and allow the proper operation of the arc-rated vent flaps. Retain the hardware from the lifting angle for installing the top-plate assembly.

Model 6 MCCs with the ArcBlok option must have the lifting angle removed and discarded. Then move the vented hood to the vent location. To help prevent the entrance of foreign materials, replace all hardware that secured the lifting angle.

Plug-in Units

Some MCC units can weigh up to 200 lb. (90.7 kg) and require two or more persons or special handling equipment. Lift only by supporting bottom and/or side panels of the unit (see Proper/Improper Lifting Points for Plug-in Units Taller Than 24 in. (610 mm)).

Proper/Improper Lifting Points for Plug-in Units Taller Than 24 in. (610 mm)

Proper Lifting Points

Improper Lifting Points

Dimensions: in. (mm)

Before installing any MCC control units, locate and retighten or re-torque any connections that may have loosened during shipment and handling. Refer to the procedures in Installing Additional MCC Units.

Storing the MCC

NOTICE
HAZARD OF MOISTURE INGRESS AND CORROSION Never store MCCs outdoors. Outdoor storage is inadequate, even with the protection of a tarpaulin. Failure to follow these instructions can result in equipment damage.

If the MCC cannot be placed into service upon receipt, store it in a clean, dry, ventilated building free from temperature extremes. Acceptable storage temperatures are from 0°C (32°F) to 40°C (104°F). Acceptable humidity levels are 0–95%, non-condensing.

If the storage area is cool and/or damp, provide enough heat to help prevent condensation inside the MCC. Contact your Schneider Electric field sales representative for specific requirements.