Electrical Installation - Bosch 500 Série Mode D'emploi

8. Refer to the Electrical Connection section for further
information to complete the electrical connection of the
combination unit to the main power supply.

Electrical Installation

All model ovens on the front cover of this installation
instruction manual are dual rated, designed to be
connected to either 208 or 240V AC, 60 Hz, 4 wire, single-
phase power supply.
Model
208V, 60 Hz
HBN54, HBN84,
HBL53, HBL54,
HBL84, HBLP4
HBL55
HBN56, HBL56,
HBL57, HBN86,
HBL86, HBL87,
HBLP6, HBLP7,
HSLP7
The electrical supply should be a 4-wire single-phase AC.
Install a suitable conduit box (not furnished). An
appropriately-sized, UL-listed conduit connector must be
used to correctly attach the conduit to the junction box.
Important: Local Codes may vary; installation, electrical
connections and grounding must comply with all applicable
local codes.
If local codes permit grounding through the electrical
supply neutral, connect both the white neutral wire and the
green ground wire from the oven to the white neutral
electrical supply wire.
Important: If you have purchased a combination oven unit
(one that includes a microwave or steam oven over the
single oven), see the preceding section "Connecting the
Microwave Oven or Steam Oven Electrical Conduit to the
Single Oven" showing electrical connection of the
combination unit components.
9 WARNING
Complete the connection of the microwave or steam
oven conduit to the single oven before proceeding
with the unit electrical connection to the main power
supply.
Electrical Connection to Main Power Supply
The four-wire connection is preferred, but where local
codes permit, the three wire connection is also acceptable.
English 8
Circuit Required
240V, 60 Hz
30 AMP
30 AMP 40 AMP
40 AMP
Four-wire Connection
Ungrounded Neutral
power supply
junction box
red wires
green or bare
wire
green wire
UL listed
connector
• Connect the red oven wire to the red electrical supply
wire (hot wire).
• Connect the black oven wire to the black electrical
supply wire (hot wire).
• Connect the white neutral oven wire to the white
neutral (not bare or green ground) electrical supply
wire.
• Connect the green ground oven wire to the bare or
green ground electrical supply wire.
Three-wire Connection
Grounded Neutral
power supply
junction box
red wires
white, bare, or
green wire
white wire
green wire
• Connect red wire from oven to red wire in junction box.
• Connect black wire from oven to black wire in junction
box.
• Connect both green ground wire and white wire from
oven to white, green or bare neutral wire in junction
box.
The conduit cable, where connected at the oven, swivels.
Rotate conduit cable upward (or downward) and direct
through hole prepared in cabinet to attach to J-Box.
To maintain serviceability, the flex conduit must not be
shortened and should be routed to permit temporary
removal of the oven.
black wires
white wires
cable from
oven
black wires
UL listed
connector
cable from
oven
9000989321 Rev A