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Allegro 9525-01 20" Axial Explosion-Proof (EX) Metal Blower

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Allegro 9525-01 has an electric, explosion proof motor is UL/CSA listed single phase motor and NEMA rated. 115V plug and 3 blade fan. Meets Class I, Division 1 and 2, Groups C & D, Class II Division 1 and 2 Groups F & G.

For use in applications requiring a large amount of output in a hazardous location environment. Allegro’s 20” (50.8cm) Explosion Proof blower is offered with a 1/2 HP Explosion Proof motor with an efficient 3-blade fan in a rugged metal housing. Certified to CSA Standard C22.2 No. 113.


  • Complete unit epoxy powder coated in orange
  • Interchangeable flange for intake or exhaust side mounting
  • 16 gauge cold rolled steel housing
  • Integrated carrying handles on four sides
  • Steel grill (zinc plated)
  • Equipped with four rubber feet
  • Stackable design


  • HP: 1/2 HP
  • Certifications: UL Listed, CSA certified
  • Voltage/Hz: 115/230V AC, 60 Hz, Single Phase
  • RPM: 1725
  • Current Draw: 8.2/4.1A
  • Cord: 25’ (7.62m) 12/3 AWG SJOOW 90C 300V medium duty
  • Plug: NEMA 20 Amp plug, explosion proof rated.


  • Anti-Static glass reinforced polyamide three blade fan with aluminum hub
  • Moving fan mounted 1 5/8” (4.12cm) from grill for safety, grill gap 5/16” (.79cm)

19" L x 22" W x 22.5" H Weight 75 pounds

Flow Rate:
Free air CFM 4650
One 90 degree bend CFM 3150
Two 90 degree bends CFM 2950

This Allegro 9525-01 Explosion Proof Axial Blower can be used with a generator, but it is important to use the proper size generator when powering a blower. Using an undersized generator may cause damage to the blower motor. Use of a generator at the minimum recommended output with additional devises can cause decreased output or blower stoppage. Please contact our office for more information.

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