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Warnings and considerations

WARNING! 

Turn OFF electrical power before installing or servicing this 

product. Improper use or installation can cause SERIOUS INJURY, DEATH 

or LOSS/DAMAGE OF PROPERTY.

ATTENTION!

 Coupez l’alimentation électrique avant d’installer ou de 

réparer ce produit. Une mauvaise installation ou utilisation peut entraîner 

des blessures graves, décès ou perte / dommages à la propriété.

WARNING! 

This device must be protected by a circuit breaker (20A max).

ATTENTION!

 Cet appareil doit être protégé par un disjoncteur (20A max.)

WARNING! 

Ground this device in accordance with the National Electric 

Code (NEC) requirements. DO NOT rely solely upon the yoke plate’s 

contact with a metal wallbox for adequate grounding. Use the device’s 

ground wire to make a secure connection to the safety ground of the 

electrical system.

ATTENTION! 

Cet 

appareil 

doit être en conformité avec le Code national 

de l’électricité (NEC). Ne comptez pas uniquement au contact de la 

plaque avant avec un boîtier mural métallique pour la mise à la terre 

adéquate. Utilisez cet 

appareil 

à la terre de l’appareil pour établir une 

connexion sécurisée au système électrique.

IMPORTANT! 

This device must be installed by a licensed electrician in 

accordance with all national and local electrical codes.

IMPORTANT! 

If you are unsure about any part of these instructions, 

consult a qualified electrician.

IMPORTANT!  

Use this device only with copper or copper-clad wire. Do 

not use aluminum wiring. This product has not been approved for use with 

aluminum wiring.

IMPORTANT!  

Install in accordance with all applicable national and local 

electrical codes.

IMPORTANT! 

Using this product in a manner other than outlined in this 

document voids your warranty. Further, Control4 is NOT liable for any 

damage incurred with the misuse of this product. See “Troubleshooting.”

IMPORTANT! 

Do NOT use a power screwdriver to install this device. If you 

do, you may overtighten the screws and strip them. Also, overtightening 

the screws may interfere with proper button operation.

IMPORTANT! 

This is an electronic device with intricate components. 

Handle and install with care!

IMPORTANT! 

Do not exceed a maximum cable length of 150 feet (45m) 

when the Yellow traveler wire is being run in parallel with the load, e.g., the 

wire is a 3 conductor (4 wire).

IMPORTANT! 

When used in conjunction with a Control4 switch or dimmer, 

the wire connecting the Auxiliary Keypad to the switch or dimmer must 

not exceed 150 feet (45m) at 120VAC, and 100 feet (30 m) at 277VAC.

Installation instructions

Turn off the local electrical power by either switching off the circuit breaker or 

removing the fuse from the fuse box. To ensure the wires do NOT have power 

running to them, use an inductive voltage detector.

NOTE: 

For wiring diagrams, refer to the Control4 switch or dimmer 

installation guide. The wallbox wiring shown in this document is an 

example. Your wire colors and functions may differ. If you are not sure 

which wires are the Line In/Hot, Neutral, and Earth Ground wires, have a 

trained electrician do the installation.

Supported model

• 

C4-KA  Auxiliary Keypad

Introduction

The Control4® Auxiliary Keypad is intended for use in a Control4 system. It installs 

in a standard wallbox and connects and communicates with a compatible Control4 

dimmer or switch using the traveler wire.

Box contents

• Auxiliary 

Keypad 

• Wire 

nuts

• Warranty 

card

•  Auxiliary Keypad Installation Guide

 (this document)

Compatible devices

The Auxiliary Keypad can connect to and control any of the following Control4 

devices:

• 

C4-APD120 Adaptive Phase Dimmer

• 

C4-APD240 Adaptive Phase Dimmer

• 

C4-APD277 Adaptive Phase Dimmer

• 

C4-FPD120 Forward Phase Dimmer

• 

C4-KD120 Keypad Dimmer

• 

C4-KD240 Keypad Dimmer

• 

C4-KD277 Keypad Dimmer

• C4-SW120277 

Switch

• C4-SW240 

Switch

• 

C4-TV120277 0-10V Dimmer

• 

C4-TV240 0-10V Dimmer

• 

C4-4SF120 Fan Speed Controller

Specifications

The specifications are described below.

Model number

C4-KA-xx

Power requirements

120/240/277 VAC +/-10% 50/60 Hz

Environmental

Operational temperature

32˚F ~ 104˚F (0˚C ~ 40˚C)

Humidity

5% to 95% non-condensing

Storage

-4˚F ~ 158˚F (-20˚C ~ 70˚C)

Miscellaneous

Wallbox volume

4.75 cubic inches

Weight

0.07 lb. (0.03 kg)

Shipping weight

0.12 lb. (0.05 kg)

Maximum number of 

supported devices

10

Auxiliary Keypad  
Installation Guide

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