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MARATHON MOTORS Hazardous Duty Division 1 Explosion Proof Motors, Severe Duty, Three Phase, C Face Footless

Marathon hazardous duty, Division 1 explosion-proof motors operate in environments that are exposed to potentially explosive or flammable atmospheric vapours, fumes, dust or gases. They are used in Class 1 (Group C & D) & Class 2 (Group F & G) locations.

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MARATHON MOTORS 145TTGN16036A
MARATHON MOTORS 143TTGN16539B
MARATHON MOTORS 056T17G15615C
MARATHON MOTORS 056T17G15599D
MARATHON MOTORS 056T17G15601E
MARATHON MOTORS 182TTGN16003F
MARATHON MOTORS 213TTGND16001G
Bearings: Ball , Duty: Continuous , Efficiency Group: NEMA Premium Efficient , Max. Ambient Temp.: 40 Degrees C , Motor Application: Hazardous Location , Motor Design: 3-Phase , Motor Enclosure Design: Totally Enclosed Fan-Cooled , Motor Shaft Design: Keyed , Phase: 3 , Temp. Code: T3B
StyleModelNominal EfficiencyLead LengthFrameFull Load AmpsHazardous Location ClassHPHzInsulation ClassPrice
A
145TTGN16036		50.5%12"143TC4.6/2.31 D / 2 F,G1.550/60B£1,466.06
B
143TTGN16539		82.5%12"143TC3.3/1.61 D / 2 F,G150/60B£1,310.67
C
056T17G15615		85.5%18"56C1.31 C,D / 2 F,G160B£1,059.61
D
056T17G15599		86.5%18"56C3.3/1.61 C,D / 2 F,G160B£1,021.26
E
056T17G15601		87.5%18"56C4.6/2.31 C,D / 2 F,G1.560B£1,522.92
F
182TTGN16003		89.5%6"182TC7.6/3.81 D / 2 F,G350/60F£1,966.68
G
213TTGND16001		91.7%6"213TC18.2/9.11 D / 2 F,G7.550/60B£2,891.38

Working Mechanism

  • Electric motors convert electrical energy into mechanical energy for generating motion.
  • Force is produced within the motor through the interaction between a winding alternating (AC) or direct (DC) current and the magnetic field.

Features

  • Marathon hazardous duty motors are supplied in explosion-proof conduit boxes for efficient operation in harsh environments.
  • They feature cast iron or rolled steel frame construction for structural rigidness and corrosion-proof service, at temperatures up to 40 degrees Celsius.
  • These Class B insulated units eliminate the need for run capacitors, starting capacitors and centrifugal starting switches, to prevent failure or wear of motors.
  • They come with T-stat or auto thermostats that are connected to the control circuit.
  • These triple-phase models have clockwise or counterclockwise rotational shafts and deliver speeds up to 3525 rpm.
  • They are equipped with a TEFC enclosure to permit cooling air to flow through the motor, thus preventing overheating.
  • These C-face, footless mounting units have ball bearings to reduce motor friction.

Standards and Approvals

  • UL
  • NEMA

Frequently Asked Questions

What does class B insulation mean?

These motors have Class B insulation for temperature control. Class B insulated motors can handle temperatures up to 130 degrees C.

Do these motors prevent overloading?

Yes, Marathon motors have a T-stat or automatic reset thermal protector to prevent overloads.

What is the difference between single, double and triple-phase motors?

  • Single-phase motor: Electricity flows through a single conductor.
  • Double-phase motor: Electricity flows through 4-wire conductors (2 for each phase).
  • Triple-phase motor: Electricity flows through 3 separate conductors.

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