Chromalox PK425-2 specifications

(Supersedes PK425-1)
PK425-2
ARR
161-562792-001
JANUARY, 1988
4
and
Installation, Operation
RENEWAL PARTS IDENTIFICATION
Type ARR Inverse-Action Thermostat
© 2010 Chromalox, Inc.
Specifications – Table A
Sensing Bulb
with 7’
Standard Capillary
Temperature Approx. Max.
Range Length A.C. Rating
Model (°F) Style Dia.(In.) (In.) (Amps)
ARR-215 60-250 5 3/841/4
ARR-219 60-250 9 3/16 169/32
ARR-515 200-550 5 3/831/4
ARR-519 200-550 9 3/16 111/4
Models installed in a moisture-resistant enclosure are designated by the suffix “LT” on the
model number.
Length
(Refer to
Specifications Table A)
Bulb
Dia.
2 / "
1116
2 / " Ref.
38
2 / "
78
Type ARR
Type ARR-LT
Moisture Resistant Model
Figure 1
30 Amp
120-277 Vac
(1 Pole Res.)
18
FLA-72LRA
250 Vac
125 Vac
120-277 Vac
(Pilot Duty)
21/4”
33/8”
57/8”
3/4” NPT Conduit Holes
47/16”
51/16”
71/16”
7/8”7/8”
C
L