GE Industrial Solutions NEMA 1 User Manual

GE Consumer & Industrial

Electrical Distribution

Double-Throw Safety Switch, NEMA 1

DEH-44153 Installation Instructions
30-400 Ampere Double-Throw Safety Switch

General

To comply with the National Electrical Code and
Underwriters Laboratories, the safety switch must
be installed in accordance with the information
provided on the UL rating label on the inside of the
equipment. Follow all local electrical codes and have
work performed by a qualified electrical contractor
and/or licensed electrician only.

WARNING: Hazard of electrical shock or
burn. Turn off power before installing or
servicing this equipment.

1. Move switch handle to OFF or center
position.

2. Open switch door.

Open the door by moving latch A upwards until the
latch clears the door, then pull the cover open. The
door is hinged on the left and opens on the right.

4. Remove knockouts.

Remove the center portion of the knockout first by
striking it inward with a hammer and screwdriver.
Outer rings may then be pried up or driven in one at
a time.

5. Pull Line and Load wiring into the box.

6. Wire phase A, B and C of Load as shown.

Refer to rating label inside switch for load lug
tightening torque. Pull Load wires into the switch in
the direction indicated by the arrows.

3. Mount switch.

Use the mounting holes as shown with fasteners of
the appropriate size for the switch being mounted.

7. Wire phase A, B, and C of Line 1 as shown.

Refer to rating label inside switch for line lug
tightening torque. Pull Line 1 wires into the switch in
the direction indicated by the arrows.

8. Wire Phase A, B and C of Line 2 as shown.

Refer to rating label inside switch for Line lug
tightening torque. Wire Line 2 only in the direction
indicated by the arrow.

9. Re-check all electrical connections.

Ensure that all electrical connections are tightened
to the proper torque before energizing the safety
switch.

10. Close door.

Close the door and ensure that latch A (see Step 2) is
engaged.

How to use the interlock defeat feature

WARNING: Hazard of electrical shock or

burn. The interlock defeat allows the door
interlock to be overridden and the door to
be opened when the switch handle is in the
ON position. This should only be done by
qualified electrical contractor and/or
licensed electrician.

GE Consumer & Industrial
41 Woodford Avenue
Plainville, CT 06062

www.geelectrical.com

• IN PREPARATION FOR OPENING THE
ENCLOSURE DOOR, USE APPROPRIATE NFPA
70E PERSONAL PROTECTIVE EQUIPMENT (PPE).

• Insert the end of an appropriately sized blade-
type screwdriver through Slot A and into Slot B.
Using the side of the screwdriver blade, engage
the tab in the direction of the arrow shown in
the diagram below to release the interlock.

• Open the door.

NOTE: Accessories and replacement parts are listed on
the label inside the safety switch door.

DEH-44153