Electrical Requirements - Maytag MMW9730AB Installation Manual

If codes permit and a separate ground wire is used, it is
recommended that a qualified electrical installer determine that
the ground path and wire gauge are in accordance with local
codes.
Check with a qualified electrical installer if you are not sure the
oven is properly grounded.
This oven must be connected to a grounded metal, permanent
wiring system.
Be sure that the electrical connection and wire size are adequate
and in conformance with the National Electrical Code, ANSI/
NFPA 70-latest edition or CSA Standards C22.1-94, Canadian
Electrical Code, Part 1 and C22.2 No. O-M91-latest edition, and
all local codes and ordinances.
A copy of the above code standards can be obtained from:
National Fire Protection Association
1 Batterymarch Park
Quincy, MA 02169-7471
CSA International
8501 East Pleasant Valley Road
Cleveland, OH 44131-5575
Electrical Connection
To properly install your oven, you must determine the type of
electrical connection you will be using and follow the instructions
provided for it here.
Oven must be connected to the proper electrical voltage,
amperage, and frequency as specified on the model/serial
number rating plate. See the following illustration.
A. Model/serial number plate
Models rated from 7.3 to 9.6 kW at 240 volts (5.4 to 7.4 kW
at 208 volts) require a separate 40-amp circuit. Models rated
at 4.8 kW and below at 240 volts (3.6 kW and below at
208 volts) require a separate 20-amp circuit.
Model KEHU309B requires a separate 50-amp circuit.
A circuit breaker is recommended.
Connect directly to the fused disconnect (or circuit breaker
box) through flexible, armored or nonmetallic sheathed,
copper cable (with grounding wire). See "Make Electrical
Connection" section.
Flexible conduit from the oven should be connected directly
to the junction box.
4

Electrical Requirements

For power requirements for models WOC54EC7A, WOC54EC0A,
WOC95EC0A and MMW9730A, refer to the following table.
For power requirements for models KEMS379B and KEMS309B,
refer to the following table.
A
For power requirements for model KEHU309B, refer to the
following table.
Do not cut the conduit. The length of conduit provided is for
serviceability of the oven.
A UL listed or CSA approved conduit connector must be
provided.
If the house has aluminum wiring follow the procedure below:
1. Connect a section of solid copper wire to the ends of the
flexible conduit leads.
2. Connect the aluminum wiring to the added section of
copper wire using special connectors and/or tools
designed and UL listed for joining copper to aluminum.
Follow the electrical connector manufacturer's recommended
procedure. Aluminum/copper connection must conform with
local codes and industry accepted wiring practices.
Voltage Microwave Oven
and Microwave
Oven with Single
Thermal Oven
240 VAC 5490 W
208 VAC 4590 W
240 VAC 30.4 A
208 VAC 28.4 A
Voltage Microwave Oven
and Microwave
Oven with Single
Thermal Oven
240 VAC 6230 W
208 VAC 5239 W
240 VAC 36.0 A
208 VAC 32.8 A
Voltage
240 VAC
208 VAC
240 VAC
208 VAC
Microwave Oven
and Microwave
Oven with Single
Convection Oven
5520 W
4620 W
30.5 A
28.6 A
Microwave Oven
and Microwave
Oven with Single
Convection Oven
6260 W
5262 W
35.1 A
32.9 A
Microwave Oven and
Microwave Oven with Single
Convection Oven
7560 W
6246 W
40.5 A
37.7 A