
Explosion-Resistant* or 
Watertight Thermostats
AR-LT Series
Starts at
AR-214EP, $1145,
shown smaller
than actual size.
$
685
Caution—Hazard of Fire: 
Types AR, ARR, AR-LT 
and AR-EP thermostats
AR-EP, AR-LT Series
These models add a weatherresistant enclosure (AR-LT series) 
or an explosion-proof enclosure 
(AREP series) to the AR Series 
shown in the P Section. With the 
exception of the enclosure type, 
specifications are the same as 
listed. AR-EP models are UL listed 
for use on Class I, Groups C and D, 
and Class II, Groups E, F and G 
hazardous locations.
To Order 
(Specify Model Number)
Watertight Expl. Resistant* Temp Amp Rating Dimensions Cap 
Model Model Range 120 to Bulb 
Number Price Number Price °C (°F) 277V 480V Style Dia. Length Length
AR-115LT $685 AR-115EP $1145 -18 to 38 (0 to 100) 30 10 5 
AR-115ALT 685 AR-115AEP 1145 -18 to 38 (0 to 100) 30 10 5 
AR-115CLT 710 AR-115CEP 1185 -18 to 38 (0 to 100) 30 10 5 
AR-214LT 685 AR-214EP 1145 16 to 121 (160 to 250) 30 10 4 
AR-214DLT 710 AR-214DEP 1185 16 to 121 (160 to 250) 30 10 4 
AR-215LT 644 AR-215EP 1145 16 to 121 (160 to 250) 30 10 5 
AR-215ALT 644 AR-215AEP 1145 16 to 121 (160 to 250) 30 10 5 
AR-219LT 644 AR-219EP 1145 16 to 121 (160 to 250) 30 10 9 
AR-514LT 685 AR-514EP 1145 93 to 288 (200 to 550) 30 10 4 
AR-519LT 685 AR-519EP 1145 93 to 288 (200 to 550) 30 10 9 
AR-519DLT 739 ——93 to 288 (200 to 550) 30 10 9 
AR-715LT 685 AR-715EP 1145 149 to 371 (300 to 700) 30 10 5 
AR-719LT 644 ——149 to 371 (300 to 700) 30 10 9
Comes complete with operator’s manual. 
Ordering Example: AR-115LT, watertight thermostat, $685.
do not provide failsafe 
temperature controls for 
heating. If the thermostat 
bulb ruptures, the 
controller senses that the 
temperature is not at the 
setpoint and heat stays 
on. A backup high limit 
temperature controller is 
recommended for safety.
*
Not intended for 
use in hazardous 
areas.
MOST POPULAR MODELS HIGHLIGHTED!
mm (in)
3
/
8" 98.6 (3.88) 2.1 (7)
3
/
8" 98.6 (3.88) 0.6 (2)
3
/
8" 98.6 (3.88) 3.6 (12)
1
/
4" 131.1 (5.16) 2.1 (7)
1
/
4" 131.1 (5.16) 4.5 (15)
3
/
8" 101.6 (4.0) 2.1 (7)
3
/
8" 101.6 (4.0) 0.6 (2)
3
/
16" 237.1 (10.75) 2.1 (7)
1
/
4" 143.0 (5.63) 2.1 (7)
3
/
16" 228.6 (9.0) 2.1 (7)
3
/
16" 228.6 (9.0) 4.5 (15)
3
/
8" 93.7 (3.69) 2.1 (7)
3
/
16" 300.0 (11.81) 2.1 (7)
m (ft)
Type CCF compression fittings are 
recommended for use with the AR 
thermostats shown on this page and 
in Section B. These fittings contain
CCF Compression Fitting Kit
AR 
Sensor
CCF compression fitting kit
goes over AR sensor.
special slotted washers that allow the 
fitting to slide over the thermostat bulb 
and tighten down on the capillary tube.
Thermowells Sold 
Separately. 
See Section B.
To Order
(Specify Model Number)
Model No. Price Material Size Weight
CCF-25D $75 300 Series SS 
CCF-25F 160 300 Series SS
Ordering Example: CCF-25D, compression fitting, $75.
P-129
CAUTION AND WARNING! 
Fire and electrical shock may result 
if products are used improperly or
installed or used by non-qualified
IN STOCK FOR FAST DELIVERY!
NPT
3
45 g (1.6 oz)
⁄8-18
1
45 g (1.6 oz)
2
⁄
-14
 

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