Chromalox Big Red Book

Immersion

MT-3 Clean Water Applications (cont’d.) • 2-1/2" NPT Brass Screw Plug • Copper Sheath Elements • High Watt Density (46 - 53 W/In 2 ) • 3 - 18 kW • Without Thermostat • 120, 208 and 480 Volt, 1 and 3 Phase • General Purpose, Moisture Resistant/Explosion Resistant Terminal Enclosure or Moisture Resistant

E1 — Dimensions (Inches)

5-5/8

B

2" Cold (Ref.)

4

2-1/2 Min. Hole Size

Thermowell

(3) 0.475" Dia. Elements

Hole for 3/4" Conduit

E2 — Dimensions (Inches)

B

5-3/8

2" Cold (Ref.)

3-3/8

2-1/2 Min. Hole Size

5-3/16 Nom.

Thermowell

(3) 0.475" Dia. Elements

(2) 3/4" NPT Conduit Opening

E4TP — Dimensions (Inches)

6-13/32

B

1/2" NPT Conduit K.O.

2" Cold (Ref.)

2-1/2 Min. Hole Size

4-13/16

Thermowell

(3) 0.475" Dia. Elements 1/4" NPT

3/4" NPT Conduit Knockout

Conduit Knockout

Specifications and Ordering Information

E2 Moisture Resistant/Explosion Resistant 2

E1 General Purpose 1

E4 Moisture Resistant

No. Elem.

DIM. B (In.)

Wt. (Lbs.)

Wt. (Lbs.)

Wt. (Lbs.)

kW Volts Phase W/In 2

Model

Stock PCN

Model

Stock PCN

Model

Stock PCN

12 12 12 12 12 12 15 15 15 15 15 15 18 18 18 18 18

208 208 240 240 480 480 208 208 240 240 480 480 208 240 240 480 480

1 3 1 3 1 3 1 3 1 3 1 3 3 1 3 1 3

46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46 46

3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3

32-5/16 32-5/16 32-5/16 32-5/16 32-5/16 32-5/16 39-3/4 39-3/4 39-3/4 39-3/4 39-3/4 39-3/4 47-1/4 47-1/4 47-1/4 47-1/4 47-1/4

MT-3120A MT-3120A MT-3120A MT-3120A MT-3120A MT-3120A MT-3150A MT-3150A MT-3150A MT-3150A MT-3150A MT-3150A MT-3180A MT-3180A MT-3180A MT-3180A MT-3180A

NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS

322501 322528 322544 322560 322587 322608 322624 322640 322667 322683 322704 322720 322747 322763 322780 322800 322827

13 13 13 13 13 13 14 14 14 14 14 14 15 15 15 15 15

MT-3120E2 MT-3120E2 MT-3120E2 MT-3120E2 MT-3120E2 MT-3120E2 MT-3150E2 MT-3150E2 MT-3150E2 MT-3150E2 MT-3150E2 MT-3150E2 MT-3180E2 MT-3180E2 MT-3180E2 MT-3180E2 MT-3180E2

NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS

322510 322536 322552 322579 322595 322616 322632 322659 322675 322691 322712 322739 322755 322771 322798 322819 322835

16 16 16 16 16 16 17 17 17 17 17 17 18 18 18 18 18

MT-3120E4TP MT-3120E4TP MT-3120E4TP MT-3120E4TP MT-3120E4TP MT-3120E4TP MT-3150E4TP MT-3150E4TP MT-3150E4TP MT-3150E4TP MT-3150E4TP MT-3150E4TP MT-3180E4TP MT-3180E4TP MT-3180E4TP MT-3180E4TP MT-3180E4TP

NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS

063693 063706 063714 063722 063730 063749 063757 063765 063773 063781 063790 063802 063810 063829 063837 063845 063853

13 13 13 13 13 13 14 14 14 14 14 14 15 15 15 15 15

Specify model, volts, phase, kW, PCN and quantity. 1. Heaters with General Purpose Enclosures are UL Listed and CSA Certified. 2. Heaters with Moisture Resistant/Explosion Resistant Enclosures are CSA NRTL/C Certified. 3. Not UL Listed, CSA Certified or C CSA US ® Certified (Exceeds 48 Amps).

“Under the U.S. Federal Safe Drinking Water Act, it is unlawful to install or use this product in any service that comes into contact with water for human consumption (including drinking, food or beverage preparation, hand washing, or teeth brushing). This product is intended exclusively for use in non-potable service.”

B-22