Chromalox PK407-4 User Manual
Installation, operation, Type ar industrial thermostat (three phase), Renewal parts identification
(Supersedes PK407-3)
PK407-4
AR
161-562793-001
MARCH, 2004
4
and
Installation, Operation
RENEWAL PARTS IDENTIFICATION
Type AR Industrial Thermostat
(Three Phase)
© 2010 Chromalox, Inc.
2-21/32"
Length
(Refer to
Specifications Table A)
Dia.
Bulb
2" O.D. T
yp.
Capillar
y
2-21/32"
4-3/32"
Sensing Bulb
with 7’
Standard Capillary
Temperature
Approx.
Max.
Range
Dia.
Length
A.C. Rating
Model*
(°F)
Style
(In.)
(In.)
(Amps)
AR-2153
60-250
5
3
/
8
4
1
/
4
AR-2193
60-250
9
3
/
16
10
3
/
4
30 Amps
AR-5153
200-550
5
3
/
8
3
1
/
4
@ 277 Volts
AR-5193
200-550
9
3
/
16
9
Specifications — Table A
*Models equipped with Pilot LIght are designated by the suffix “P” on the Model Number.
Models equipped with Knob Cover are designated by the suffix (KC) on the Model Number.
Models equipped with both a Pilot Light and a Knob Cover are designated by the suffix
“PKC” on the Model Number.
Figure 1