Omega Products ARMTO-2020-240 User Manual
MEDIUM WEIGHT OIL IMMERSION HEATER
B
21.9 (8.625)
5.08 (2)
cold (ref)
20
(7.875)
5.7
(2.25)
min
hole
size
Thermowell
1.2 (0.475) dia. elements
2 (1.5) NPT conduit hubs
(one side plugged)
B
16.7
(6.56)
5.7 (2.25) min
hole size
5 (2) cold (ref)
Thermowell
15 (6)
(2) 0.475
dia. elements
Hole for 0.75 conduit
⻬ Steel Sheath and Low
⻬ Integral Thermostat
⻬ 2 to 6 kW
⻬ 208, 240 or 480V; 1 Phase
⻬ 2 Element Construction
APPLICATIONS
Heating medium viscosity oil—
Suitable for heating medium bodied
oils such as industrial gear oils or
numbers 4 and 5 residual fuel oils.
Heating provides low ambient
temperature protection, ensuring
that oil remains fluid to lubricate
effectively and reduce load on gear
motor drives.
To Order
kW W/in
ARMTO-2 Series with General Purpose Enclosure
2 15 2 16 (247⁄8) ARMTO-2020/* $900 ARMTO-2020T2/* $900 ARMTO-2020T1/* $900 4 (8)
2.66 15 2 16 (323⁄4) ARMTO-2026/* 975 ARMTO-2026T2/* 975 ARMTO-2026T1/* 975 4 (9)
3.33 15 2 20 (401⁄4) ARMTO-2033/* 1050 ARMTO-2033T2/* 1050 ARMTO-2033T1/* 1050 4 (9)
4 15 2 23 (473⁄4) ARMTO-2040/** 1150 ARMTO-2040T2/** 1150 ARMTO-2040T1/** 1150 5 (10)
5 15 2 31 (571⁄2) ARMTO-2050/* 1250 ARMTO-2050T2/* 1250 ARMTO-2050T1/* 1250 5 (11)
6 15 2 41 (67
ARMTO-2 Series with Moisture Tight/Explosion Resistant Enclosure
0.2 15 2 16 (247⁄8) ARMTO-2020E2/* $1150 ARMTO-2020E2T2/* $1150 ARMTO-2020E2T1/* $1150 6 (13)
2.66 15 2 16 (323⁄4) ARMTO-2026E2/* 1200 ARMTO-2026E2T2/* 1200 ARMTO-2026E2T1/* 1200 6 (14)
3.33 15 2 20 (401⁄4) ARMTO-2033E2/* 1300 ARMTO-2033E2T2/* 1300 ARMTO-2033E2T1/* 1300 6 (14)
4 15 2 23 (473⁄4) ARMTO-2040E2/** 1400 ARMTO-2040E2T2/** 1400 ARMTO-2040E2T1/** 1400 7 (15)
5 15 2 31 (571⁄2) ARMTO-2050E2/* 1500 ARMTO-2050E2T2/* 1500 ARMTO-2050E2T1/* 1500 7 (16)
6 15 2 31 (67
/*Designate voltage, i.e., insert “240” for 240 Vac, or “480” for 480 Vac.
/**Designate voltage, ie., insert “208” for 208 Vac, “240” for 240 Vac, or “480” for 480 Vac.
1 Heaters with general purpose enclosures are UL Listed with T1 or T2 temps and CSA certified with T1, T2 or T3 temps.
2 Heaters with moisture resistant/explosion resistant enclosures are CSA NRTL/C certified with T1, T2 or T3 temps.
Ordering Examples: ARMTO-2020/240, 2 kW heater with thermostat range of 200 to 550°F, powered by 240 Vac, $900.
ARMTO-2020E2/120V, 0.2 kW heater with thermostat range of 200 to 550°F, powered by 120 Vac, $1150.
† Caution: Explosion resistant type E2 construction refers to heater design features which provide explosion resisting containment of electrical
wiring according to National Electric Code. Abnormal application or use of heaters which in excessive temperatures can create hazardous
conditions which can lead to fire consult section Z for data on allowable watt densities for more viscous materials.
ARMTO-2 Series
Starts at
$
900
Watt Density for Heating
Medium Weight Oils
Three Temperature
Ranges Available
with 2 NPT Steel Fitting
(Specify Model Number)
T3 Temp Range T2 Temp Range T1 Temp Range
(200 to 550°F) (60 to 250°F) (0 to 100°F) Wt.
Model No. Price Model No. Price Model No. Price
3
⁄4 ) ARMTO-2060/* 1350 ARMTO-2060T2/* 1350 ARMTO-2060T1/* 1350 5 (12)
3
⁄4) ARMTO-2060E2/* 1600 ARMTO-2060E2T2/* 1600 ARMTO-2060E2T1/* 1600 8 (17)
Htg.
No.
Dim. B
2
Elem. cm (in)
E1 Dimensions: cm (in)
E2 Dimensions: cm (in)
SPECIFICATIONS
Wattage: 2 to 6 kW
Power: 240, or 480V; 1 phase
Watt Density: 15 W/in
2
Sheath: 0.475" diameter steel
Screw Plug: 2 NPT steel
Enclosure: General purpose
1
, NEMA-1
rated, or E2 moisture resistant/explosion
resistant enclosure2; see caution below
MOST POPULAR MODELS HIGHLIGHTED!
1
F-35
ARMTO-2020/240,
$900, shown smaller
than actual size.
Please Note: This integral thermostat
functions as a temperature control only.
This is not a fail safe device. An approved
pressure and/or temperature limit control
should be used with these heaters to assure
safe operation. See Section P for our
selection of controllers.
2†
ARMTO-2020E2T1/240,
$1150, shown smaller
than actual size.
Ib (kg)
One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | info@omega.com
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