Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
REZNOR 85449 Auto Limit Switch, 140°F to 200°F - Replacement HVACR Controls, Switches & Thermostats
REZNORReplacement HVACR Controls, Switches & Thermostats

REZNOR 85449 Auto Limit Switch, 140°F to 200°F

REZNOR Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Limit Switch.

SKU 3G-OTH-106017

Brand
REZNOR
Item
85449 Auto Limit Switch, 140°F to 200°F
Part Number
85449
Category
Replacement HVACR Controls, Switches & Thermostats
Available to Order
Also known as:85449REZNOR
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.
EXW Singapore
Collect or forward from our office
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

REZNOR
Manufacturer Part Number
85449
Product Type
Limit Switch

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

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

Product Description

REZNOR Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Limit Switch.

Frequently Asked Questions

What is the REZNOR 85449 limit switch used for?

The REZNOR 85449 auto limit switch is used in HVAC systems to monitor and control temperature, typically in gas-fired unit heaters. It opens or closes electrical contacts when the temperature reaches 140°F to 200°F, preventing overheating and ensuring safe operation.

What are the specifications of the REZNOR 85449 limit switch?

The REZNOR 85449 is a limit switch with a temperature range of 140°F to 200°F. It is a replacement HVACR control component, designed for use in REZNOR heating equipment. The manufacturer part number is 85449, and it is classified as a limit switch for safety and temperature regulation.

Where to buy the REZNOR 85449 limit switch worldwide?

You can source the REZNOR 85449 limit switch through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time; we supply genuine REZNOR replacement parts for HVAC systems.

How to install the REZNOR 85449 limit switch?

To install the REZNOR 85449 limit switch, first disconnect power to the HVAC unit. Mount the switch in the designated location, typically near the heat exchanger. Connect the wiring per the unit's schematic, ensuring proper contact. Test operation by verifying the switch opens at the specified temperature range.

Used in

Common applications for REZNOR
Industrial unit heaters — Venter motor and wheel assembly (MPN 220785) for combustion gas exhaust and airflow maintenance.
Commercial rooftop units — Gas valve (MPN 96300) for controlling fuel flow in heating systems.
Make-up air equipment — Pressure switch (MPN 204327) to verify airflow before ignition.
Warehouse heating systems — Fan control (MPN 123976) to regulate airflow in ventilation equipment.
Manufacturing plant heating — Pilot assembly (MPN 125251) for reliable burner ignition.
Reznor HRP400 industrial heaters — OEM blower wheel (MPN 43814) to restore airflow during repairs.
Not sure this is the right part? Photo-identify it→

REZNOR Products

3G Electric supplies REZNOR replacement hvacr controls, switches & thermostats. 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 REZNOR

View all REZNOR parts →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first