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Rugged Clean Water Immersion Heater—2" NPT Brass Fitting

ARMT-2 Series

Water Immersion Heater | ARMT-2 Series

Water Immersion Heater

USD1,275.00 ARMT-2155/120V

  • Ideal For Clean Liquids within pH 6 to pH 8 Range
  • Quality Construction with Copper Sheath
  • Models Available with 120V, 208V, 240V, or 480V, 1 Phase Power
  • Integral Thermostat
Immersion Heaters - View related products


The OMEGALUX™ ARMT-2 Series clean water immersion heater feature 2" NPT brass fitting screw plug for direct heating of the process fluid in your tank or vessel. Tested design characteristics assure years of dependable performance.

Please 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 the Temperature Section for our full 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.

T-2 Temp.Range (60°-250°F)
Model No.
T-1 Temp.Range (0°-100°F)
Model No.
kW Phase W/in2 No.
Dim. B
in (cm)
ARMT-2155/*ARMT-2155T1/*1.5148112 (30)
ARMT-2205-3/**ARMT-2205-3T1/**215128 (20)
ARMT-2255/***ARMT-2255T1/***2.5148291/2 (20)
ARMT-2305/**ARMT-2305T1/**3148212 (30)
ARMT-2405/***ARMT-2405T1/***4148218 (46)
ARMT-2505/***ARMT-2505T1/***5153219 13/16 (39)
ARMT-2605/***ARMT-2605T1/***61472251/8 (64)
ARMT-2705/***ARMT-2705T1/***7149228 (71)
ARMT-2105/***ARMT-2105T1/***10146240 1/2 (103)
ARMT-2125/240ARMT-2125T1/24012146248 (122)
ARMT-2125/480ARMT-2125T1/24012146248 (122)
ARMT-21505/240ARMT-21505T1/24015150254 (137)
/* Designate voltage; 120, 208, 240 VAC.
/** Designate voltage; 120, 208, 240 480 VAC.
/*** Designate voltage; 208, 240 480 VAC.
To order the unit with the optional E2 enclosure, insert E2 into the part number as shown, ARMT-2255E2T1/240.
* E2 enclosure not intended for use in hazardous areas.
Place Order(Specify Model Number)
Part Number/Desc.
Example part numbers are shown below. For additional configurations see the Part Number Builder below this table.
Availability: 6 weeks
2kW heater powered by 480 Vac
Availability: 6 weeks
5kW heater powered by 240Vac
All amounts shown in USD

Part Number Builder

Build Your Part Number Below
Option Descriptions:

(1) kW select from:
15 for 1.5 kW
20 for 2 kW
25 for 2.5 kW
30 for 3 kW
40 for 4 kW
50 for 5 kW
60 for 6 kW
70 for 7 kW
10 for 10 kW
12 for 12 kW
150 for 15 kW

(2) P/N ARMT-2205-3/** & ARMT-2205-3T1/** select from:
Nothing(leave field blank) for Valid for all p/n except ARMT-2205-3/** & ARMT-2205-3T1/**
-3 for Only valid for ARMT-2205-3/** & ARMT-2205-3T1/**

(3) Enclosure select from:
Nothing(leave field blank) for General Purpose NEMA-1 rated
E2 for Moisture Tight/Explosion Resistant

(4) Temperature Range select from:
Nothing(leave field blank) for Temp Range (60 to 250°F)
T1 for Temp Range (0 to 100°F)

(5) Voltage select from:
120V for 120 Vac
208V for 208 Vac
240V for 240 Vac
480V for 480 Vac
Note: All combinations may not be valid, check spec sheet for valid part numbers.
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