The Marathon Harsh Duty is an industry-leading industrial alternator with a reputation for its robust protection against the toughest elements.

Born from DNA of the time tested, rugged componentry in our Harsh Duty, the Irrigator Duty includes even more water ingress protection, greatly enhancing its capacity to maintain reliable power through extremely wet or dust-laden environments.

• Container refrigeration
• Center pivot irrigation systems
• Aggregate processing plants
• Sewage lift stations
• Submersible pump applications

Specifications

• 20, 25, 30, and 40 kW
• PM500 AVR voltage regulator (shunt excited)
• 1 HP/kW motor starting
• Added ingress protection
• Winding treated with multiple dip and bake cycles of 100% solids varnish
• Reinforced main stator windings
• Taped and encapsulated exciter stator
• Anti-tracking coated exciter stator
• Available in one and two-bearing designs
• 2-year warranty