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INSTALLATION AND OPERATING INSTRUCTIONS

ENGLISH

WARNINGS AND CAUTIONS

• 

TO AVOID FIRE, SHOCK, OR DEATH; TURN OFF POWER

 at circuit breaker or fuse and 

test that power is off before wiring!

•  To be installed and/or used in accordance with appropriate electrical codes and regulations.

•  If you are unsure about any part of these instructions, consult an electrician.

WARNINGS AND CAUTIONS

•  This product must be installed in a suitable junction box or equivalent enclosure.

•  Use this device with 

copper or copper-clad wire only.

•  For indoor use only.

•  SAVE THESE INSTRUCTIONS.

LEVITON UPB™ 15A RELAY SWITCH AND AUXILIARY SWITCH

Cat. No. 40A00-1

Installation Instructions and User’s Guide

DI-022-HL401-05A

AR2253

(40I00-1)

For the following Models:

40A00-1 Leviton 15A Relay Switch (referred to as Leviton UPB™ Wall Switch, in this document), 

and 37A00-1 Leviton Auxiliary Switch.

NOTE:

 All Leviton UPB™ Wall Switches require a neutral (white) connection wire. 

Leviton UPB™ Wall Switch Overview

The Leviton UPB™ Wall Switch 

(Figure 1)

 allows for local control of loads by using the rocker switch. It also 

incorporates the UPB™ two-way powerline communication technology that gives it the ability to be remotely 

controlled by UPB™ compatible controllers. The Leviton UPB™ Wall Switch is also capable of transmitting 

UPB™ messages when the rocker switch is turned on or turned off.
The Leviton 15A Relay Switch is used to control loads such as receptacles, motor-operated appliances (i.e. 

fans), and fluorescent lighting fixtures.

Figure 1 - Leviton UPB™ Wall Switch

(ON/BRIGHT)

(OFF/DIM)

BOTTOM

LED

INDICATOR

TOP

GROUND

GREEN

RED

YELLOW

WHITE

LOAD

CONTROL

NEUTRAL

BLACK

LINE

Leviton Auxiliary Switch Overview

The 37A00-1 Leviton Auxiliary Switch 

(Figure 2)

 is an optional companion device used with the Leviton UPB™ 

Wall Switch for multi-way circuits. The Leviton Auxiliary Switch has a rocker switch that controls the load in the 

exact same manner as the rocker switch on the Leviton UPB™ Wall Switch.

Figure 2 – Leviton Auxiliary Switch

YELLOW

BLUE

GRAY

CONTROL

*NEUTRAL

*NEUTRAL

BLACK

LINE

BOTTOM

(OFF/DIM)

(ON/BRIGHT)

TOP

(FOR RED INDICATOR)

(FOR BLUE INDICATOR)

INDICATOR

LED

Changing Switch Color

The color of the Leviton UPB™ Wall Switch and Auxiliary Switch may be changed to complement the interior 

décor. The Leviton UPB™ Wall Switch and Auxiliary Switch is supplied with a white switch plate. Additional 

colors are available; contact your Leviton distributor for more information. When changing the switch plate, 

make sure that the switch is disconnected from all power, and proceed as follows:

Figure 3 – Changing Switch Color

1.

  The switch plate attaches to the Leviton UPB™ Wall Switch and Auxiliary Switch with two 

latches on the right and two on the left. Using a small-bladed screwdriver, gently depress the 

upper and lower latch on one side while lifting up on the plate. Once the latches are released 

on one side, remove the switch plate from the other side.

2.

  Align the latches of the new switch plate to the openings on the mounting plate and gently 

snap into place.

INSTALLATION INSTRUCTIONS

The Leviton UPB™ Wall Switch is wired directly to the load and can be controlled by adding one 

or more optional Leviton Auxiliary Switches producing multi-way circuits. Multi-way circuits make 

it possible for a group of switches to control the same load. This section will illustrate how to 

make the connections.

NOTES:
1.

  Refer to 

Figures 1 and 2

 to determine the wire colors for each connection.

2.

  All Leviton UPB™ Wall Switches require a neutral (white) connection.

3.

  The Line (black) wire must be accessible for the installation of all Leviton Auxiliary Switches. 

This wire may be connected to either phase of the 120/240V supply. The blue and/or gray 

wire on the Leviton Auxiliary Switch can be connected to either earth ground or neutral. The 

blue and/or gray wire is only used to light the LED on the switch. This LED only indicates that 

power is applied and serves as a night-light. Connect the blue wire only to light the LED blue. 

Connect the gray wire only to light the LED red. Connect both the blue wire and the gray wire 

to light the LED magenta. 

Installation Procedure

1.

  Be sure that all power to the load has been disconnected by turning off the circuit breaker.

2.

  If applicable, remove the faceplate from the existing wall switch, remove the existing wall switch from the wall box, and 

disconnect the wires from the existing wall switch.  Identify the "Line", "Neutral", "Load" and "Traveler" (if applicable) wires.

3.

  Remove 3/4" of insulation from each of the wires on the Leviton UPB™ Wall Switch. Install the Leviton UPB™ Wall Switch 

by connecting wires per wiring configuration shown in 

Figure 5

.

4.

  Install any optional Leviton Auxiliary Switch per wiring configuration shown in 

Figure 5

.

6.

  After all connections have been made, be certain that all wire connectors are firmly attached and there is no exposed copper.

5.

  Gently place the wires and Leviton UPB™ Wall Switch into the wall box with the LED at the top of device. Using the supplied 

screws, attach the Leviton UPB™ Wall Switch to the wall box. 

6.

  Before installing the faceplate, restore power to the circuit, and then fully close the air-gap switch lever.

7.

  After testing the Leviton UPB™ Wall Switch and Auxiliary Switch for proper local operation 

(see Table 1)

,  

install a Decora

®

 faceplate over each switch.

Leviton 15A RELAY SWITCH OPERATION

The Leviton 15A Relay Switch has configurable items that can be set using the UPB™ UPStart configuration software. The 

following describes the operation of the Leviton 15A Relay Switch in its factory default configuration.

Local Rocker Switch Operation

The Leviton 15A Relay Switch has a rocker switch that can be used to control the load as follows.

WEB 

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