B
21.9 (8 5/8)
2" Cold
(Ref).
5.7
(2 1/4)
Min.
Hole
Size
Thermowell
1.2 (0.475) Dia. Elements
(2) 1 1/2 NPT Conduit Hubs
(one side plugged)
20
(7 7/8)
B
2
1/4
(5.7) Min.
Hole Size
2" Cold (Ref)
Thermowell
6 (15)
1.2 (0.475")
Dia. Elements
Hole for
3/4"
Conduit
16.7
(6 9/16)
IMMERSION HEATERS, INCOLOY
SHEATH—2 NPT FITTINGHHHHH
Dimensions: cm (in)
ARMTI-2 Series
Starts at
E1
$
1100
NRTL/C
E2
⻬ Ideal Immersion for
Severe, Hard Water
pH 5 to 9
⻬ Integral Thermostat
⻬ 2 NPT Stainless Steel
Fitting with 2 Heating
Elements
⻬ Available with NEMA-1
Rated General Purpose
Enclosure, or Explosion
Resistant Enclosure
⻬ 240 or 480V, 1 Phase
Power
2
⻬ 46 to 51 W/in
Watt
Density
SPECIFICATIONS
Wattage: 2 to 15 kW
Power: 240, or 480V; 1 phase
Sheath: 1.2 cm (0.475") diameter incoloy
Screw Plug: 2 NPT stainless steel
Thermostat: Bulb and capillary
Enclosure: General purpose, NEMA-1
rated, or type E2 moisture
resistant/explosion resistant enclosure
Note: The integral thermostat functions as
a temperature control only. This is not a fail
safe device. An approved pressure or
temperature control should be used with
these heaters to assure safe operation.
See Section P for our selection of control
devices.
CAUTION AND WARNING!
Fire and electrical shock may result
if products are used improperly or
installed or used by non-qualified
personnel. See inside back cover
for additional warning.
MOST POPULAR MODELS HIGHLIGHTED!
To Order (Specify Model Number)
No.
Htg. Dim. B
2
kW Phase W/in
ARMTI-2 Series with E1 General Purpose Terminal Enclosure
21 51 2 22 (8) ARMTI-2205-3/* $1100 6(3) ARMTI-2205-3T1/* $1100 6(3)
2.5 1 51 2 23 (9) ARMTI-2255/* 1100 7(3) ARMTI-2255/* 1100 7(3)
31 48 2 30 (12) ARMTI-2305/* 1150 7(3) ARMTI-2305/* 1150 7(3)
41 47 2 44 (171⁄2) ARMTI-2405/* 1200 7(3) ARMTI-2405/* 1200 7(3)
51 46 2 50 (195⁄8) ARMTI-2505/* 1300 8(4) ARMTI-2505/* 1300 8(4)
61 46 2 64 (251⁄16) ARMTI-2605/* 1350 8(4) ARMTI-2605/* 1350 8(4)
71 49 2 71 (281⁄8) ARMTI-2705/* 1350 9(4) ARMTI-2705/* 1350 9(4)
10 1 46 2 71 (405⁄8) ARMTI-21005/* 1550 10(5) ARMTI-21005/* 1550 10(5)
12 1 46 2 71 (475⁄8)†ARMTI-21205/* 1650 11(5)†ARMTI-21205/* 1650 11(5)
15 1 50 2 137 (54)†ARMTI-21505/* 1800 12(5)†ARMTI-21505/* 1800 12(5)
ARMTI-2 Series with E2 Moisture Resistant/Explosion Resistant Enclosure
21 51 2 22 (8) ARMTI-2205-3E2/* $1350 12(5) ARMTI-2205-3E2T1/* $1350 12(5)
2.5 1 51 2 23 (9) ARMTI-2255E2/* 1350 13(6) ARMTI-2255E2T1/* 1350 13(6)
31 48 2 30 (12) ARMTI-2305E2/* 1400 13(6) ARMTI-2305E2T1/* 1400 13(6)
41 47 2 44 (171⁄2) ARMTI-2405E2/* 1450 13(6) ARMTI-2405E2T1/* 1450 13(6)
51 46 2 50 (195⁄8) ARMTI-2505E2/* 1650 14(6) ARMTI-2505E2T1/* 1650 14(6)
61 46 2 64 (251⁄16) ARMTI-2605E2/* 1600 14(6) ARMTI-2605E2T1/* 1600 14(6)
71 49 2 71 (281⁄8) ARMTI-2705E2/* 1600 15(7) ARMTI-2705E2T1/* 1600 15(7)
10 1 46 2 71 (405⁄8) ARMTI-21005E2/* 1800 16(7) ARMTI-21005E2T1/* 1800 16(7)
12 1 46 2 71 (475⁄8)†ARMTI-21205E2/*
15 1 50 2 137 (54)
Insert “240” for 240 Vac, or “480” for 480 Vac
*
1 Heaters with general purpose enclosures are UL Listed and CSA certified except models
with † (exceeds 48 amps).
2 Heaters with moisture resistant/explosion resistant enclosures are CSA NRTL/C certified
and are not intended for use in hazardous areas. Except models with † (exceeds 48 amps).
Ordering Examples: ARMTI-2255/240, 2.5 kW heater with thermostat range of 60 to 250°F
powered by 240 Vac, $1100.
ARMTI-2305E2/240, explosion resistant immersion heater, $1400.
Elem. cm (in)
F-25
Temp Range T-1Temp Range
(60 to 250°F) Wt. (0 to 100°F)
Model No. Price lb(kg) Model No. Price lb(kg)
†
ARMTI-21505E2/* 1900 18(8)†ARMTI-21505E2T1/*
1900 17(7)†ARMTI-21205E2T1/*
ARMTI-2255/240,
$1100, shown smaller
than actual size.
ARMTI-2305E2/240,
$1400, shown smaller
than actual size.
Wt.
1
2
1900 15(7)
1900 18(8)
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