MARATHON MOTORS Black Max Inverter Duty Motors, Hazardous Duty, Explosion Proof

Marathon inverter (vector) duty Black Max hazardous duty motors are ideal for powering machine tools, material handling equipment, conveyors, cranes & hoists and other variable speed applications. ...Read More

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MARATHON MOTORS 056H17E5305A
MARATHON MOTORS 056H17E5301B
MARATHON MOTORS 056H17E5302C
MARATHON MOTORS 056H17E5303D
MARATHON MOTORS 056H17E5304E
Ambient Temp. Range: 40 Degrees C , Base: Rigid , Bearings: Ball , Duty: Continuous , Enclosure: Totally Enclosed Nonventilated , Finish: Black , Frame: 56C , Frame Material: Rolled Steel , Hz: 60 , Insulation Class: F , Max. Speed: 3600 RPM , Motor Application: Cranes , Motor Design: 3-Phase , Motor Enclosure Design: Totally Enclosed Nonventilated , Motor Mounting Position: Horizontal , Motor Shaft Design: Keyed , Motor Thermal Protection: None , Motor Type: 3-Phase , Mounting: C-Face , Mounting Position: Horizontal , Nameplate RPM: 1725 , NEMA Design: A , Phase: 3 , Rotation: CW/CCW , RPM Range: 1701-1800 , Service Factor: 1.0 , Shaft Dia.: 5/8" , Shaft Length: 2 1/16" , Thermal Protection: None , Voltage: 230/460 , Warranty: 3 yr.
StyleModelEfficiency GroupFull Load AmpsHPNominal EfficiencyOverall LengthTorquePrice (inc. GST)
A
056H17E5305		Epact3.0/1.510.84143 lb.-ft. SGD 2,303.05
B
056H17E5301		Standard1.1/.551/40.71120.75 lb.-ft. SGD 1,406.03
C
056H17E5302		Standard1.2/0.61/30.745121 lb.-ft. SGD 1,663.84
D
056H17E5303		Standard1.6/0.81/20.812.51.52 lb.-ft. SGD 1,881.21
E
056H17E5304		Standard2.4/1.23/40.82512-/22.25 lb.-ft. SGD 1,974.56

Features

  • Marathon inverter (vector) duty Black Max hazardous duty motors are equipped with a MaxGuard inverter-rated insulation system for exceeding NEMA MG1 Part 31 rating and handling voltage peaks.
  • They produce a constant horsepower up to twice their base RPM speed and can be run at 1/1000 of the base speed in pump, fan & blower applications.
  • These motors can handle low speeds without getting overheated and have ball bearings for smooth operation.
  • These motors meet the T3B temperature code, handling a maximum surface temperature of 329 degrees F. They operate continuously at a 40 degrees C ambient temperature.
  • They come with a top mount (F3) conduit box (shipped loose) for easy & quick electrical connections.

Standards and Approvals

  • CSA
  • UL

Frequently Asked Questions

How are these motors installed?

These motors have a rigid base (C-face footed) for horizontal mounting on a surface for easy and secure installation.

Do these motors have thermal protection?

These Marathon inverter (vector) duty Black Max hazardous duty motors are integrated with normally closed thermostats (one per phase, Class F) for acting as a thermal protector and turning Off the controller to prevent damage.

How is the shaft of these motors designed?

These motors feature keyed shafts that can rotate in both clockwise & counterclockwise directions.

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