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Tel.: 1 (450) 444 2030 

 Toll Free: 1 888 222-1560 

 Fax: 1 (450) 444 2029 

 Internet: www.kantech.com

 DN1246-0404

 

Copyright 

 2004 Kantech Systems. All rights reserved 

 Specifications may change without notice. 

Kantech Systems 

KT-PC4204

4 Relay Output and Power Supply

 

1. Introduction 

The 

KT-PC4204

 is an output module with four programmable relays and can be 

used to repower the Combus (see KT-300 installation manual in the Combus 

Repower Section). This module is also used for elevator control. 

Note

: Do not use any power supply other than the KT-PC4204 to repower the 

Combus. If a power supply other than the KT-PC4204 is used, the Combus 

repower function will not operate as intended.  

2. Specifications 

• 

Current Draw: 30 mA (from Combus) 

• 

16VAC/40VA transformer required 

• 

Maximum 7Ah battery required 

• 

Connects to the controller via 4-wire Combus 

• 

Four programmable relay contacts rated 2A, 30VDC 

• 

AUX current: 1.0A max. 

• 

Tamper contact input 

• 

Can be used to repower the combus 

• 

Can be used for elevator control 

3. 

Installing the KT-PC4204 

3.1. Unpacking 

The 

KT-PC4204

 package should include the following parts/items: 

• 

One (1) KT-PC4204 circuit board 

• 

One (1) ground wire assembly 

• 

Five (5) plastic standoffs 

• 

One (1) 5A replacement fuse 

• 

One (1) installation instructions sheet 

3.2. Mounting 

 

The 

KT-PC4204

 should be located inside a compatible cabinet (Kantech part no. 

KT-4051CAB), mounted in a dry and secure location. Preferably, it should be 

placed at a convenient distance from the connected devices. 

Perform the following steps to mount the unit: 

1. 

Press the five (5) plastic standoffs through the mounting holes at back of the 

cabinet,  

2. 

Secure the cabinet to the wall in the desired location. Use appropriate wall 

anchors when securing the cabinet to drywall, plaster, concrete, brick or 

other surfaces, 

3. 

Press the circuit board into the plastic standoffs to secure the module to the 

cabinet. 

Once the unit is mounted, wiring may be started. 

3.3.  Installation and Wiring 

Before beginning to wire the unit, ensure that all power (AC transformer and 

battery) is disconnected from the KT-300 controller. 
Perform the following steps to complete wiring: 

1. 

Connect the four Combus wires to the KT-PC4204. Connect the red, black, 

yellow and green Combus wires to the RED, BLK, YEL and GRN 

terminals, respectively.  

 

If the module is being used for Combus Repower, connect the Combus wires 

according to the following diagram. For this option, Jumper J1 must also be 

set for “Combus Relay.”

 

 

 

2. 

Complete all output wiring,  

3. 

Connect the external tamper switch, if used. 

Consult the above wiring diagrams for further information.

 

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