Chromalox PK425-2 Installation & Operation

RENEWAL PARTS IDENTIFICATION
Type ARR Inverse-Action Thermostat
2 1 / "
4
Type ARR-LT
Moisture Resistant Model
© 2010 Chromalox, Inc.
Installation, Operation
and
3
3 / "
8
5 7 / "
8
Type ARR
C L
3 / " NPT Conduit Holes
7 7 / " 4
/ "
8
8
4 7 / "
16
5 1 / "
16
Specifications – Table A
Temperature
Range
Model (°F)
ARR-215 60-250
ARR-219 60-250
ARR-515 200-550
ARR-519 200-550
Models installed in a moisture-resistant enclosure are designated by the suffix "LT" on the
model number.
11 16
2 / "
7 1 / "
16
Figure 1
4
ARR
(Supersedes PK425-1)
161-562792-001
JANUARY, 1988
Sensing Bulb
with 7'
Standard Capillary
Approx.
Length
Style Dia.(In.) (In.)
3 1
5 / 4 /
8 4
3 9
9 / 16 /
16 32
3 1
5 / 3 /
8 4
3 1
9 / 11 /
16 4
2 / " Ref. 3 8
7 8
2 / "
Bulb
Dia.
Length
(Refer to
Specifications Table A)
PK425-2
Max.
A.C. Rating
(Amps)
30 Amp
120-277 Vac
(1 Pole Res.)
18
FLA-72LRA
250 Vac
125 Vac
120-277 Vac
(Pilot Duty)