Specification

Table Of Contents
12
4. Add strain relief.
Style 1: Power supply cord strain relief
Remove the knockout for the power supply cord.
Assemble a UL listed strain relief in the opening.
A
A. UL listed strain relief
Tighten strain relief screw against the power supply cord.
Style 2: Direct wire strain relief
Remove the knockout as needed for the flexible conduit
connection.
Assemble a UL listed conduit connector in the opening.
A
B
A. Removable retaining nut
B. Conduit
Tighten strain relief screw against the flexible conduit.
5. Complete installation following instructions for your type of
electrical connection:
4-wire (recommended)
3-wire (if 4-wire is not available)
Electrical Connection Options
If your home has:
And you will be
connecting to:
Go to Section:
4-wire receptacle
(NEMA type 14-50R)
A UL Listed, 250 V
minimum, 40 A,
range power
supply cord
4-wire connection:
Power supply cord
4-wire direct
B
A
A. 3/8" (1 cm)
B. 5" (12 cm)
A circuit breaker
box or fused
disconnect
4-wire connection:
Direct wire
3-wire receptacle
(NEMA type 10-50R)
A UL Listed, 250 V
minimum, 40 A,
range power
supply cord
3-wire connection:
Power supply cord
3-wire direct
B
A
A. 3/8" (1 cm)
B. 3" (7.6 cm)
A circuit breaker
box or fused
disconnect
3-wire connection:
Direct wire
4-Wire Connection: Power Supply Cord
Use this method for:
New branch-circuit installations (1996 NEC)
Mobile homes
Recreational vehicles
In an area where local codes prohibit grounding through the
neutral.