Sterlco SGBD Series Batch Gravimetric Blenders - Manual (Page 40)

BLN1-600A Chapter 3: Installation 40 of 116
If a step down transformer was provided, it should never be used to power anything other
than the blender. Loading equipment, etc. must be powered by another power source. As well
as possibly overloading the transformer, the additional equipment may induce power line
noise that may affect the operation of the blending system.
The transformer will be mounted and wired by the customer or your installer. If company or
local codes require fusing or disconnects, these items must be supplied, wired, and mounted
by the customer.
1. Provide a correctly sized and protected power supply to the unit.
2. If an electrical supply disconnect is not installed as a factory option, the customer
is responsible to properly size and install a suitable disconnect.
3. Refer to National Electric Code (NEC) 430-24-26 for proper feed conductor and
supply disconnect sizing.
4. Voltages must be within plus or minus ten percent (±10%) of the nameplate rating.
5. Maintain a safe ground and disconnect the power supply before servicing the unit
(NFPA Article 250).
A qualified electrician should make electrical connections and disconnect the
electricity when service calls are needed.
Improper electrical connections can
damage the unit and cause serious
operator injury or death!
MAKE SURE THAT ALL ELECTRICAL CONNECTIONS ARE
MADE BY A QUALIFIED ELECTRICIAN, AND THAT ALL
CONNECTIONS ARE TIGHT.
Ensure that the power entrance location on the blender panel remains unchanged. Make sure
that the proper size wire and proper wire routing techniques are used when installing the
• Each blending system MUST be connected to a separate source of power. Do
not connect other electrical equipment, especially self-contained hopper
loaders, on the same line as the blending system.