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Mcdonnell & Miller RBT-3000 LWCO & Fuel Economizer – Obsolete - Low Water Cut Offs
Mcdonnell & MillerLow Water Cut Offs

Mcdonnell & Miller RBT-3000 LWCO & Fuel Economizer – Obsolete

Note: listed by manufacturer as obsolete/discontinued.

SKU 3G-OTH-02722

Also listed as: RBT3000 · RBT 3000

Brand
Mcdonnell & Miller
Item
RBT-3000 LWCO & Fuel Economizer – Obsolete
Category
Low Water Cut Offs
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Documents

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

Product Description

Note: listed by manufacturer as obsolete/discontinued.

Frequently Asked Questions

What is the McDonnell & Miller 3G-OTH-02722 low water cut off used for?

The McDonnell & Miller 3G-OTH-02722 low water cut off is used to protect boilers and steam systems from damage caused by low water conditions. It automatically shuts down the burner when water levels drop below a safe threshold, preventing overheating and potential equipment failure in commercial and industrial heating applications.

What are the specifications of the McDonnell & Miller 3G-OTH-02722?

The McDonnell & Miller 3G-OTH-02722 is a low water cut off designed for steam and hot water boilers. It operates on 24 VDC and features a probe-type sensing mechanism. The device is listed by the manufacturer as obsolete or discontinued, so exact specifications should be verified from original documentation before ordering.

Where to buy the McDonnell & Miller 3G-OTH-02722 in Singapore?

You can source the McDonnell & Miller 3G-OTH-02722 low water cut off through 3G Electric in Singapore. We provide industrial equipment sourcing, handle logistics and customs clearance, and arrange delivery to your facility. Contact us for current availability and lead time on this obsolete model.

How to install the McDonnell & Miller 3G-OTH-02722 low water cut off?

Install the McDonnell & Miller 3G-OTH-02722 according to the manufacturer's original instructions. Typically, mount the probe in the boiler's water column or steam chamber, connect 24 VDC power, and wire the output to the burner control circuit. Ensure proper grounding and test operation after installation. Consult a qualified technician for safety.

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

Mcdonnell & Miller Products

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

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