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

MCDONNELL & MILLER 3-Level Sensor: RS-3-BR-1 Mfr Part # - Replacement HVACR Pumps, Valves & Tubing
MCDONNELLReplacement HVACR Pumps, Valves & Tubing

MCDONNELL & MILLER 3-Level Sensor: RS-3-BR-1 Mfr Part #

MCDONNELL Replacement HVACR Pumps, Valves & Tubing. Specifications: Product Type: 3-Level Sensor.

SKU 3G-OTH-83367

Also listed as: RS3BR1 · RS 3 BR 1

Brand
MCDONNELL
Item
& MILLER 3-Level Sensor: RS-3-BR-1 Mfr Part #
Category
Replacement HVACR Pumps, Valves & Tubing
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

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 Specifications

MCDONNELL
Manufacturer Part Number
RS-3-BR-1
Product Type
3-Level Sensor

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

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

Product Description

MCDONNELL Replacement HVACR Pumps, Valves & Tubing. Specifications: Product Type: 3-Level Sensor.

Frequently Asked Questions

What is the MCDONNELL & MILLER RS-3-BR-1 3-Level Sensor used for?

The MCDONNELL & MILLER RS-3-BR-1 is a 3-level sensor used in HVACR systems to monitor liquid levels in boilers, tanks, or receivers. It provides three discrete level signals for control or alarm functions, helping maintain safe and efficient operation in commercial and industrial heating applications.

What are the specifications of the MCDONNELL & MILLER RS-3-BR-1?

The MCDONNELL & MILLER RS-3-BR-1 is a 3-level sensor with manufacturer part number RS-3-BR-1. It is designed for replacement HVACR pumps, valves, and tubing applications. For detailed electrical ratings and mounting requirements, consult the product datasheet or contact 3G Electric.

Where to buy the MCDONNELL & MILLER RS-3-BR-1 worldwide?

You can source the MCDONNELL & MILLER RS-3-BR-1 3-level sensor through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install the MCDONNELL & MILLER RS-3-BR-1 3-Level Sensor?

Install the MCDONNELL & MILLER RS-3-BR-1 according to the manufacturer's instructions, typically by mounting it vertically in the tank or pipe at the desired level points. Ensure proper wiring to the control panel and test all three level outputs before commissioning. Always follow local codes and safety guidelines.

Used in

Common applications for MCDONNELL
Steam boiler low-water cutoff — McDonnell & Miller 61 level control
Condensate receiver level monitoring — McDonnell & Miller RS-4-BR-1 4-level sensor
HVACR pump suction filtration — McDonnell & Miller 340700 strainer basket assembly
Flow switch head replacement — McDonnell & Miller 63-HD head mechanism
Boiler control circuit safety — McDonnell & Miller 7-BM electrical switch with manual reset
Field servicing of flow switches — McDonnell & Miller 310452 cartridge kit

MCDONNELL Products

3G Electric supplies MCDONNELL replacement hvacr pumps, valves & tubing. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Pump Accessories Valves & Regulation Motors & Drives All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
MCDONNELL & MILLER Single Level Sensor: RS-1-BR-1 Mfr Part #
MCDONNELL
MCDONNELL & MILLER Single Level Sensor: RS-1-BR-1 Mfr Part #
MCDONNELL & MILLER 4-Level Sensor: RS-4-BR-1 Mfr Part #
MCDONNELL
MCDONNELL & MILLER 4-Level Sensor: RS-4-BR-1 Mfr Part #
MCDONNELL & MILLER Single Level Sensor: RS-1-LP Mfr Part #
MCDONNELL
MCDONNELL & MILLER Single Level Sensor: RS-1-LP Mfr Part #
MCDONNELL & MILLER Level Pressure Control: 157S-RB-MD Mfr Part #
MCDONNELL
MCDONNELL & MILLER Level Pressure Control: 157S-RB-MD Mfr Part #
MCDONNELL & MILLER Level Control: 157S-RBP-MD Mfr Part #
MCDONNELL
MCDONNELL & MILLER Level Control: 157S-RBP-MD Mfr Part #
MCDONNELL & MILLER Liquid Level Control Probe: P-3-SS Mfr Part #
MCDONNELL
MCDONNELL & MILLER Liquid Level Control Probe: P-3-SS Mfr Part #

More from MCDONNELL

View all MCDONNELL parts
MCDONNELL & MILLER Low Water Cut-Off, 120V, Residential: RB-122E Mfr Part #
MCDONNELL
MCDONNELL & MILLER Low Water Cut-Off, 120V, Residential: RB-122E Mfr Part #
MCDONNELL & MILLER Raised Face Holding Gasket: 325500 Mfr Part #
MCDONNELL
MCDONNELL & MILLER Raised Face Holding Gasket: 325500 Mfr Part #
MCDONNELL & MILLER Make-Up Water Feeder: 25-A Mfr Part #
MCDONNELL
MCDONNELL & MILLER Make-Up Water Feeder: 25-A Mfr Part #
MCDONNELL & MILLER Head Gasket: 325400 Mfr Part #
MCDONNELL
MCDONNELL & MILLER Head Gasket: 325400 Mfr Part #
MCDONNELL & MILLER Level Control Valve: 247 Mfr Part #
MCDONNELL
MCDONNELL & MILLER Level Control Valve: 247 Mfr Part #
MCDONNELL & MILLER Lower Valve: 317353 Mfr Part #
MCDONNELL
MCDONNELL & MILLER Lower Valve: 317353 Mfr Part #
MCDONNELL & MILLER Low Water Cut Off/Pump Controller: 93-7B Mfr Part #
MCDONNELL
MCDONNELL & MILLER Low Water Cut Off/Pump Controller: 93-7B Mfr Part #
MCDONNELL & MILLER Upper Valve: 317350 Mfr Part #
MCDONNELL
MCDONNELL & MILLER Upper Valve: 317350 Mfr Part #