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3G Electric
Mcdonnell & Miller Series AFE-1 Air Flow Switches
Mcdonnell & MillerFlow Switches

Mcdonnell & Miller Series AFE-1 Air Flow Switches

Note: listed by manufacturer as obsolete/discontinued.

SKU 3G-OTH-02751

Also listed as: AFE1 · AFE 1

Brand
Mcdonnell & Miller
Item
Series AFE-1 Air Flow Switches
Part Number
AFE-1
Category
Flow Switches
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Mcdonnell & Miller
Manufacturer Part Number
AFE1

Technical Documents

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Mcdonnell & Miller Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

Note: listed by manufacturer as obsolete/discontinued.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the McDonnell & Miller 3G-OTH-02751 flow switch used for?

The McDonnell & Miller 3G-OTH-02751 flow switch is designed for industrial hazardous environments requiring NEMA 7 (Class I, Division I, Groups C and D) or NEMA 9 (Class II, Division I, Groups E, F, and G) enclosures. It detects liquid flow in piping systems to trigger alarms or control equipment in explosive atmospheres.

What are the specifications of the McDonnell & Miller 3G-OTH-02751?

The McDonnell & Miller 3G-OTH-02751 is a flow switch for hazardous locations. It features a NEMA 7 or NEMA 9 enclosure suitable for Class I, Division I, Groups C and D, and Class II, Division I, Groups E, F, and G. The manufacturer lists this model as obsolete or discontinued.

Where to buy the McDonnell & Miller 3G-OTH-02751 in Singapore?

3G Electric supplies the McDonnell & Miller 3G-OTH-02751 flow switch to Singapore. We source and deliver this obsolete model, handling logistics and customs clearance for your facility. Contact us for availability and lead time on this discontinued hazardous-location flow switch.

How to select a replacement for the McDonnell & Miller 3G-OTH-02751?

When selecting a replacement for the McDonnell & Miller 3G-OTH-02751, verify the required hazardous-location classification (NEMA 7 or NEMA 9) and pipe size. Since the 3G-OTH-02751 is discontinued, consult a qualified engineer to choose a current model with equivalent flow range and enclosure rating. 3G Electric can help source suitable alternatives.

Used in

Common applications for Mcdonnell & Miller
Steam boiler low-water cutoff — McDonnell & Miller inline flow switches (e.g., FS-1) for automatic burner shutdown
Cooling water flow monitoring — McDonnell & Miller insertion-style switches (e.g., FS4-3D) in large-diameter pipes
Hazardous-area process lines — McDonnell & Miller FS7-4E with NEMA 7/9 enclosure for Class I, Div 1 locations
HVAC chilled water systems — McDonnell & Miller FS6-1 inline switch for pump flow verification
Industrial wastewater treatment — McDonnell & Miller FS4-3S stainless steel switch for corrosive fluid flow detection
Boiler feedwater control — McDonnell & Miller FS8-WJ with BSP connections for international installations
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Mcdonnell & Miller Products

3G Electric supplies Mcdonnell & Miller flow switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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