Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
ALLEGRO Confined Space Blower: 115/208 to 230 V AC, 20 in Duct Dia, 1 1/2 hp Horsepower - Axial Fans & Blowers
ALLEGROAxial Fans & Blowers

ALLEGRO Confined Space Blower: 115/208 to 230 V AC, 20 in Duct Dia, 1 1/2 hp Horsepower

The ALLEGRO Confined Space Blower (MPN 9525-50EX) is an axial fan designed for ventilation in confined spaces. This orange blower-only unit operates at 120/208 to 240 V AC, features a 20-inch duct diameter, and is…

SKU 3G-OTH-545117

Brand
ALLEGRO
Item
Confined Space Blower: 115/208 to 230 V AC, 20 in Duct Dia, 1 1/2 hp Horsepower
Category
Axial Fans & Blowers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

ALLEGRO
Manufacturer Part Number
9525-50EX
Type
Orange
Duct Dia
20 in
Includes
Blower Only
Horsepower
1 1/2 hp
Operating Voltage
120/208 to 240 V AC
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

ALLEGRO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The ALLEGRO Confined Space Blower (MPN 9525-50EX) is an axial fan designed for ventilation in confined spaces. This orange blower-only unit operates at 120/208 to 240 V AC, features a 20-inch duct diameter, and is powered by a 1 1/2 hp motor.

Frequently Asked Questions

What is the ALLEGRO 9525-50EX confined space blower used for?

The ALLEGRO 9525-50EX is an axial fan designed to ventilate confined spaces such as tanks, vaults, and manholes. It supplies fresh air to workers and removes hazardous fumes, dust, or vapors, supporting safety compliance in industrial and construction environments.

What are the specifications of the ALLEGRO 9525-50EX blower?

The ALLEGRO 9525-50EX operates at 120/208 to 240 V AC, has a 20-inch duct diameter, and a 1 1/2 hp motor. It is a blower-only unit (no ducting included) in an orange housing. The manufacturer part number is 9525-50EX.

Where to buy the ALLEGRO 9525-50EX confined space blower worldwide?

3G Electric supplies the ALLEGRO 9525-50EX confined space blower to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this ventilation equipment.

How to select the right confined space blower for my application?

Select a blower based on duct diameter, required airflow, and available power. The ALLEGRO 9525-50EX with a 20-inch duct and 1 1/2 hp motor suits medium-volume ventilation. Ensure the operating voltage (120/208 to 240 V AC) matches your site supply. Consult a safety engineer for confined-space compliance.

Used in

Common applications for ALLEGRO
Industrial hygiene monitoring — ALLEGRO lead cassettes (9804-14) for airborne lead sampling in manufacturing facilities.
Confined space ventilation — ALLEGRO axial blower (9548) for air movement in tanks or vaults during maintenance.
Temporary heating on construction sites — ALLEGRO portable electric heater (9401-50) for work tents in cold weather.
Sampling pump maintenance — ALLEGRO service kits (9804-40) for replacing vanes and filters in IAQ pumps.
Asbestos or particulate analysis — ALLEGRO TEM cassettes (9804-17) for electron microscopy sample collection.
HVACR system testing — ALLEGRO axial blower (9548) for ventilation testing in ductwork or equipment rooms.

ALLEGRO Products

3G Electric supplies ALLEGRO axial fans & blowers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from ALLEGRO

View all ALLEGRO parts →
ALLEGRO Confined Space Blower: 12 V DC, 16 in Duct Dia, 1/2 hp Horsepower, Orange, Blower Only (MPN 9539-16DC). Key specifications — Brand: ALLEGRO; Includes: Blower Only; Operating Voltage: 12 V DC with Vehicle Battery Hookups.
ALLEGRO
ALLEGRO Confined Space Blower: 12 V DC, 16 in Duct Dia, 1/2 hp Horsepower, Orange, Blower Only (MPN 9539-16DC). Key specifications — Brand: ALLEGRO; Includes: Blower Only; Operating Voltage: 12 V DC with Vehicle Battery Hookups.
ALLEGRO Confined Space Fan: 115 V AC, 20 in Duct Dia, 1/2 hp Horsepower, 1,725 RPM Blower/Fan Speed (MPN 9525). Key specifications — Brand: ALLEGRO; Operating Voltage: 115 V AC.
ALLEGRO
ALLEGRO Confined Space Fan: 115 V AC, 20 in Duct Dia, 1/2 hp Horsepower, 1,725 RPM Blower/Fan Speed (MPN 9525). Key specifications — Brand: ALLEGRO; Operating Voltage: 115 V AC.
ALLEGRO Confined Space Fan: 115/230 V AC, 12 in Duct Dia, 1 hp Horsepower, Orange, 13 A Current (MPN 9543). Key specifications — Brand: ALLEGRO; Operating Voltage: 120/240 V AC.
ALLEGRO
ALLEGRO Confined Space Fan: 115/230 V AC, 12 in Duct Dia, 1 hp Horsepower, Orange, 13 A Current (MPN 9543). Key specifications — Brand: ALLEGRO; Operating Voltage: 120/240 V AC.
ALLEGRO Confined Space Blower: 230 V AC, 16 in Duct Dia, 3/4 hp Horsepower, Orange, Blower Only (MPN 9539-16EX). Key specifications — Brand: ALLEGRO; Includes: Blower Only; Operating Voltage: 240 V AC.
ALLEGRO
ALLEGRO Confined Space Blower: 230 V AC, 16 in Duct Dia, 3/4 hp Horsepower, Orange, Blower Only (MPN 9539-16EX). Key specifications — Brand: ALLEGRO; Includes: Blower Only; Operating Voltage: 240 V AC.
ALLEGRO Confined Space Fan: 115/230 V AC, 20 in Duct Dia, 2 hp Horsepower, Orange, 8.2 A Current (MPN 9525-01). Key specifications — Brand: ALLEGRO; Operating Voltage: 120/240 V AC.
ALLEGRO
ALLEGRO Confined Space Fan: 115/230 V AC, 20 in Duct Dia, 2 hp Horsepower, Orange, 8.2 A Current (MPN 9525-01). Key specifications — Brand: ALLEGRO; Operating Voltage: 120/240 V AC.
ALLEGRO Confined Space Fan: 115/230 V AC, 16 in Duct Dia, 2 hp Horsepower, Orange, 21 A Current (MPN 9516). Key specifications — Brand: ALLEGRO; Operating Voltage: 120/240 V AC.
ALLEGRO
ALLEGRO Confined Space Fan: 115/230 V AC, 16 in Duct Dia, 2 hp Horsepower, Orange, 21 A Current (MPN 9516). Key specifications — Brand: ALLEGRO; Operating Voltage: 120/240 V AC.
ALLEGRO High Output Fan: 115/230 V AC, 22 in Duct Dia, 1/2 hp Horsepower, 1,725 RPM Blower/Fan Speed (MPN 9541-22). Key specifications — Brand: ALLEGRO; Includes: Motor Mount; Operating Voltage: 120/240 V AC.
ALLEGRO
ALLEGRO High Output Fan: 115/230 V AC, 22 in Duct Dia, 1/2 hp Horsepower, 1,725 RPM Blower/Fan Speed (MPN 9541-22). Key specifications — Brand: ALLEGRO; Includes: Motor Mount; Operating Voltage: 120/240 V AC.
ALLEGRO Confined Space Fan: 115 V AC, 12 in Duct Dia, 1 hp Horsepower, 3,400 RPM Blower/Fan Speed (MPN 9539-12). Key specifications — Brand: ALLEGRO; Operating Voltage: 115 V AC.
ALLEGRO
ALLEGRO Confined Space Fan: 115 V AC, 12 in Duct Dia, 1 hp Horsepower, 3,400 RPM Blower/Fan Speed (MPN 9539-12). Key specifications — Brand: ALLEGRO; Operating Voltage: 115 V AC.