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: 12 V DC, 16 in Duct Dia, 1/2 hp Horsepower, Orange - Axial Fans & Blowers
ALLEGROAxial Fans & Blowers

ALLEGRO Confined Space Blower: 12 V DC, 16 in Duct Dia, 1/2 hp Horsepower, Orange

The ALLEGRO Confined Space Blower is a 12 V DC axial fan designed for ventilation in confined spaces. It features a 16-inch duct diameter, 1/2 hp motor, and draws 39 A of current. This orange blower includes a 15 ft…

SKU 3G-OTH-545108

Brand
ALLEGRO
Item
Confined Space Blower: 12 V DC, 16 in Duct Dia, 1/2 hp Horsepower, Orange
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
9556
Type
Orange
Current
39 A
Duct Dia
16 in
Includes
15 ft (4.57 m) Power Cord
Horsepower
1/2 hp
Operating Voltage
12 V DC with Vehicle Battery Hookups
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 is a 12 V DC axial fan designed for ventilation in confined spaces. It features a 16-inch duct diameter, 1/2 hp motor, and draws 39 A of current. This orange blower includes a 15 ft (4.57 m) power cord and operates on 12 V DC with vehicle battery hookups (MPN 9556).

Frequently Asked Questions

What is the ALLEGRO Confined Space Blower used for?

The ALLEGRO Confined Space Blower is an axial fan designed to ventilate tanks, vaults, and other enclosed areas. It supplies fresh air to protect workers from hazardous atmospheres during entry, maintenance, or rescue operations.

What are the specifications of the ALLEGRO 9556 blower?

The ALLEGRO 9556 blower operates on 12 V DC with vehicle battery hookups, draws 39 A current, and has a 1/2 hp motor. It includes a 15 ft (4.57 m) power cord and a 16 in duct diameter. The unit is orange and weighs accordingly.

Where to buy the ALLEGRO 9556 confined space blower worldwide?

3G Electric supplies the ALLEGRO 9556 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 solution.

How to maintain an ALLEGRO confined space blower?

Regularly inspect the power cord and duct connections for damage. Clean the fan blades and housing to prevent debris buildup. Verify the 12 V DC battery hookups are secure and corrosion-free. Follow ALLEGRO's manual for motor and electrical checks.

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: 115 V AC, 16 in Duct Dia, 1 hp Horsepower, 3,450 RPM Blower/Fan Speed (MPN 9553). Key specifications — Brand: ALLEGRO; Includes: Blower Only; Operating Voltage: 115 V AC.
ALLEGRO
ALLEGRO Confined Space Blower: 115 V AC, 16 in Duct Dia, 1 hp Horsepower, 3,450 RPM Blower/Fan Speed (MPN 9553). Key specifications — Brand: ALLEGRO; Includes: Blower Only; Operating Voltage: 115 V AC.
ALLEGRO Axial AC Plastic Blower: 115/230 V AC, 8 in Duct Dia, 1/3 hp Horsepower, Orange (MPN 9533). Key specifications — Brand: ALLEGRO; Includes: Steel Powder Coated Grill; Operating Voltage: 120/240 V AC.
ALLEGRO
ALLEGRO Axial AC Plastic Blower: 115/230 V AC, 8 in Duct Dia, 1/3 hp Horsepower, Orange (MPN 9533). Key specifications — Brand: ALLEGRO; Includes: Steel Powder Coated Grill; Operating Voltage: 120/240 V AC.
ALLEGRO Confined Space Fan: 115V, 16 in Duct Dia, 1/2 hp Horsepower, 2,900 cfm Max Flow in Free Air (MPN 9515-01). Key specifications — Brand: ALLEGRO; Includes: Metal Housing; Operating Voltage: 115 V AC.
ALLEGRO
ALLEGRO Confined Space Fan: 115V, 16 in Duct Dia, 1/2 hp Horsepower, 2,900 cfm Max Flow in Free Air (MPN 9515-01). Key specifications — Brand: ALLEGRO; Includes: Metal Housing; Operating Voltage: 115 V AC.
ALLEGRO Confined Space Fan: 115/230 V AC, 20 in Duct Dia, 2 hp Horsepower, Orange, 21 A Current (MPN 9525-50). 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, 21 A Current (MPN 9525-50). Key specifications — Brand: ALLEGRO; Operating Voltage: 120/240 V AC.
ALLEGRO Confined Space Fan: 12 V DC, 12 in Duct Dia, 1/4 hp Horsepower, 3,800 RPM Blower/Fan Speed (MPN 9539-12DC). Key specifications — Brand: ALLEGRO; Operating Voltage: 12 V DC with Vehicle Battery Hookups.
ALLEGRO
ALLEGRO Confined Space Fan: 12 V DC, 12 in Duct Dia, 1/4 hp Horsepower, 3,800 RPM Blower/Fan Speed (MPN 9539-12DC). Key specifications — Brand: ALLEGRO; Operating Voltage: 12 V DC with Vehicle Battery Hookups.
ALLEGRO Confined Space Blower: 115/208 to 230 V AC, 20 in Duct Dia, 1 1/2 hp Horsepower, Orange (MPN 9525-50EX). Key specifications — Brand: ALLEGRO; Includes: Blower Only; Operating Voltage: 120/208 to 240 V AC.
ALLEGRO
ALLEGRO Confined Space Blower: 115/208 to 230 V AC, 20 in Duct Dia, 1 1/2 hp Horsepower, Orange (MPN 9525-50EX). Key specifications — Brand: ALLEGRO; Includes: Blower Only; Operating Voltage: 120/208 to 240 V AC.
ALLEGRO Confined Space Fan: 115 V AC, 12 in Duct Dia, 1/3 hp Horsepower, 3,250 RPM Blower/Fan Speed (MPN 9539-12EX). Key specifications — Brand: ALLEGRO; Operating Voltage: 115 V AC.
ALLEGRO
ALLEGRO Confined Space Fan: 115 V AC, 12 in Duct Dia, 1/3 hp Horsepower, 3,250 RPM Blower/Fan Speed (MPN 9539-12EX). Key specifications — Brand: ALLEGRO; Operating Voltage: 115 V AC.
ALLEGRO Confined Space Blower: 115 V AC, 8 in Duct Dia, 1/3 hp Horsepower, Black/Orange/Yellow (MPN 9539-08). Key specifications — Brand: ALLEGRO; Includes: Carry Handle; Operating Voltage: 115 V AC.
ALLEGRO
ALLEGRO Confined Space Blower: 115 V AC, 8 in Duct Dia, 1/3 hp Horsepower, Black/Orange/Yellow (MPN 9539-08). Key specifications — Brand: ALLEGRO; Includes: Carry Handle; Operating Voltage: 115 V AC.