Chromalox KDS-3, KDS-1, KDS-2 User Manual
© 2010 Chromalox®, Inc.
Power Disconnect Switch Kits
Electrical Data (60Hz)
Standard
Model Contactor
Volts kW Phase Amps
Rating (Qty.)
KUH-C-02-81 208 2.667 1 12.8
KUH-C-02-21 208/240 2/2.667 1 11.1*
KUH-C-02-71 277 2.667 1 9.6
KUH-C-04-81
208 4
1 19.2
KUH-C-04-83 3 11.2 30A (1)
KUH-C-04-21
208/240 3/4
1 16.7*
KUH-C-04-23 3 9.6* 30A (1)
KUH-C-04-71 277 4 1 14.5
KUH-C-04-43 480 4 3 4.8 30A (1)
KUH-C-05-81
208 5
1 24.0
KUH-C-05-83 3 13.8 30A (1)
KUH-C-05-21
208/240 3.75/5
1 20.8*
KUH-C-05-23 3 12.1* 30A (1)
KUH-C-05-71 277 5 1 18.2
KUH-C-05-43 480 5 3 6.0 30A (1)
KUH-C-07-81
208 7.5
1 36.1 50A (1)
KUH-C-07-83 3 20.9 30A (1)
KUH-C-07-21
208/240 5.625/7.5
1 31.1* 30A (1)
KUH-C-07-23 3 18.1* 30A (1)
KUH-C-07-71 277 7.5 1 27.2 30A (1)
KUH-C-07-43 480 7.5 3 9.0 30A (1)
KUH-C-10-81
208 10
1 48.0 50A (1)
KUH-C-10-83 3 27.8 30A (1)
KUH-C-10-21
208/240 7.5/10
1 41.7* 30A (1)
KUH-C-10-23 3 24.0* 30A (1)
KUH-C-10-43 480 10 3 12.0 30A (1)
KUH-C-12-83 208 12.5 3 34.8 50A (1)
KUH-C-12-23 208/240 9.375/12.5 3 30.1* 50A (1)
KUH-C-12-43 480 12.5 3 15.1 30A (1)
KUH-C-15-83 208 15 3 41.8 50A (1)
KUH-C-15-23 208/240 11.25/15 3 36.2* 50A (1)
KUH-C-15-43 480 15 3 18.1 30A (1)
KUH-C-20-23 208/240 15/20 3 48.0* 50A (1)
KUH-C-20-43 480 20 3 24.0 30A (1)
KUH-C-25-43 480 25 3 30.0 50A (1)
KUH-C-30-83 208 30 3 83.4 50A (2)
KUH-C-30-23 208/240 22.5/30 3 72.2* 50A (2)
KUH-C-30-43 480 30 3 36.1 30A (2)
KUH-C-35-23 208/240 26.25/35 3 84.3* 50A (2)
KUH-C-35-43 480 35 3 42.1 30A (2)
KUH-C-40-23 208/240 30/40 3 96.0* 50A (2)
KUH-C-40-43 480 40 3 48.0 30A (2)
KUH-C-45-43 480 45 3 54.1 30A (2)
Specifications – Table A
GENERAL
The following procedure contains instructions for installing
Power Disconnect Switches.
ELECTRIC SHOCK HAZARD. Disconnect all power
before installing disconnect switch. Failure to do
so could result in personal injury or property damage. Disconnect switch must be installed by a
qualified person in accordance with the National
Electrical Code, NFPA 70.
*208V amperage is 86% of 240V value.
®
DIVISION 4 SECTION
KUH
SALES
REFERENCE
DATE
SERVICE REFERENCE
PF486-3
161-303476-001
AUGUST, 2004
(Supersedes PF486-2)
INSTALLATION INSTRUCTIONS AND RENEWAL PARTS IDENTIFICATION
3 Pole
Model Rating PCN
KDS-1 50 Amp for units rated 480V and less 304434
40 Amp for units rated 500V to 600V
3 Pole 600 V Rating
Model Rating PCN
KDS-2 80 Amp 304442
KDS-3 100 Amp 304450
Power Disconnect Switch
for Field Installation
Mounting Bracket
Plastic
Bezel
Mounting Plate
Hardware
(Self Tapping)
Mounting Plate
Cover
INSTALLATION
1. The amperage rating of the disconnect
must be equal to or greater than the
amperage rating on Table A and as
marked on the nameplate located on the
bottom access door (Figure 1).
2. The power disconnect kit is to be installed
in the rectangular knockout located in the
bottom right corner on the back of the
heater (Figure 2). The knockout can be
removed using a hammer and chisel or
other appropriate means.
For easier access to terminal screws to
wire pigtail leads supplied on the heater, it
is suggested that these connections be
made before installing. See Wiring
Instructions.
3. The disconnect switch assembly (Figures
3 or 4) consists of a mounting bracket,
disconnect switch, mounting plate cover
and self tapping screws.
4. The Disconnect switch, with its mount-ing bracket should be
inserted into the heater cabinet by opening the bottom service
door and positioned behind the opening created in Step 2 (see
Figure 5).
KDS–1
5. The disconnect switch, with its mounting plate should be inserted
into the heater cabinet by opening the bottom service door and
positioned behind the opening created in step 2 (see Figure 5).
6. Insert the four self tapping screws into the four holes in the rear
panel. They should engage the holes in the mounting plate and
then be tightened until they are secure (see Figure 6).
7. Mount the switch faceplate to the switch using the two provided
screws. Mount with the “OFF” position to “0” to the left and the
on position “1” to the top. Slide the handle over the shaft and
tighten the screw to secure.
Figure 2
Figure 4
80 and 100 Amp Kit — KDS-2 and KDS-3
The disconnect switch has a bracket for mounting the switch.
Figure 5
Knockout
REAR CASE
REAR CASE
0
1
(ON)
(OFF)
(2) 6-20 x 1/2 SCREWS
MOUNT FACEPLATE WITH "ON"
POSITION TO TOP OF HEATER
MOUNT SWITCH ASSEMBLY
ONTO REAR CASE OF HEATER
(4) 8-32 SCREWS
(4) 8-18 X 1/2 SCREWS
COVER PLATE
Figure 6 – KDS-1
Figure 1
Figure 3
40 and 50 Amp Kits — KDS-1
The disconnect switch has a bracket for mounting the switch.
Disconnect Switch
Pigtail Leads
Handle
Faceplate
(4) 8-18 x 1/2
(4) 8-32 x 1/2
(2) 6-20 x 1/2
Mounting Plate Cover
2
Loading...