Description
The Allegro 9503-E is an explosion-proof centrifugal blower designed for ventilation in hazardous environments. Its single-phase electric motor is UL Listed and CSA Certified, while the non-sparking ABS housing provides an added level of safety for applications where hazardous-location requirements apply.
The blower is equipped with a 3/4 HP motor operating at a maximum of 1,425 RPM. Its airflow performance is rated at 1,300 CFM in free air, 915 CFM after the first 90° bend and 750 CFM after the second 90° bend, allowing effective ventilation even when duct routing includes bends.
The unit uses retractable, single-ply lightweight ducting made from vinyl/polyester with neoprene coating, rated for temperatures from -65°F to 250°F. The ducting is also rated to 100,000 ohms or less per square inch.
The 9503-E comes with a NEMA-rated 220V plug compatible with explosion-proof sockets, which are sold separately. The source specifies compliance with Class I & II, Division 1 & 2 hazardous-location requirements.
Key Features
- 8″ centrifugal heavy-duty explosion-proof blower
- Model 9503-E
- 3/4 HP single-phase explosion-proof electric motor
- UL Listed and CSA Certified motor
- Maximum motor speed of 1,425 RPM
- Non-sparking ABS housing
- Compact design for handling and storage
- Strong airflow without excessive bulk
- Up to 1,300 CFM free-air capacity
- 915 CFM after first 90° bend
- 750 CFM after second 90° bend
- Retractable single-ply ducting
- Lightweight vinyl/polyester/neoprene-coated ducting
- Ducting temperature range of -65°F to 250°F
- NEMA-rated 220V plug
- Designed for hazardous locations
Applications
- Hazardous-location ventilation
- Confined-space ventilation
- Industrial plant ventilation
- Chemical and process industries
- Tank and vessel ventilation
- Manhole and sewer ventilation
- Emergency response and rescue operations
- Ventilation applications requiring explosion-proof equipment
Certifications & Standards
- UL Listed
- CSA Certified
- Class I, Division 1 & 2, Groups C & D
- Class II, Division 1 & 2, Groups F & G
- Compliant with Class I & II, Division 1 & 2 hazardous-location requirements
