It’s not that easy to choose the right furnace relay switch since there’s a ton of things you need to consider first. Some of the factors we paid attention to in our evaluation when reviewing the top furnace relay switch on the market. Through our research, weve looked through catalogues to pick out the very best for you. Through our comparison table, in-detail reviews of each product, were going to reveal the name of our best furnace relay switch on the marketbut dont skip to the end!
Best furnace relay switch
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Best furnace relay switch reviews
1. Emerson 90-380 Relay, Fan, 24 VAC
Feature
Heavy-duty, general-purpose relay operates in any positionCompact, totally enclosed design with isolated coil and mounting bracket
For heating and cooling applications and general switching
Quiet, reliable and economical
SPNO switch action
Description
The White-Rodgers 90-370 heavy-duty relay is a totally enclosed relay, which operates in any position. This relay provides general-purpose switching for heating and cooling applications.2. White Rodgers 90-380 Replacement Heavy Duty Switching Fan Relay SPST 1-NO , 1-NC 24 V Coil
Feature
For heating and cooling applications and general switchingCompact, totally enclosed design
Operates in any position
Standard 1/4" Male TerminalsIndividually Boxed
Individually Boxed
Description
Brand New , Individually Boxed Replacement Fan Relay3. White-Rodgers Relay, Switching, 24 V
Description
Snap-acting for remote control of air conditioning, heating, and ventilation systems, motors (up to 1-1/2 HP), tools, and other electrical devices within ratings.Item: Magnetic Relay
Type: AC Switching
Coil Volts: 24
Switch Type: DPDT
HP: 1/2
Full Load Amps @ 120VAC: 12
Locked Rotor Amps @ 120V: 60
Full Load Amps @ 240VAC: 6
Locked Rotor Amps @ 240V: 35
Resistive Amps @ 277V: 15
Full Load Amps @ 277V: 6
Height (In.): 2-1/4
Width (In.): 2-1/8
Depth (In.): 1-7/8
Mounting: Universal
Application: Air Conditioning, Heating/Ventilating Control System, Motor Starting, Heating Element Operation and Power Supply Control
Agency Compliance: UL
4. White Rodgers 90-370 Fan Relay Rbm Type 184 Heavy-duty Enclosed
Feature
WR/RBM type 184. Operates in any positionCompact, totally enclosed design
For heating and cooling applications and general switching
Coil Voltage: 24. Switch Action: SPDT.
Description
90370, White-Rodgers, Inc., Heavy-Duty Enclosed Fan Relays, SPDT, 24 VAC5. Honeywell L4064B2236 Combination Fan and Limit Furnace Control
Feature
Control high limit and fan motors in forced air heating systems.Fan and limit controller. 8 inch insert.
Field adjustable fan and high limit settings.
Description
This is an O.E.M. authorized part. Fits various Honeywell models . OEM Part Number L4064B2236. This product is manufactured in USA.6. Supplying Demand 106 Furnace Heat Sequencer 2DPST 24 Volt On 1-110 Off 1-110
Feature
Replaces part numbers Q106, GS106, 51172-33-1, 24A34-6, NS106, & 33233Combined Load Ratings: 30A @240V AC, Total heater load (no fan included)
23A Non-inductive + 7FLA (motor/transformer)/42 LRA Inductive or 88 LRA @ 277V
Comes in Supplying Demand packaging. 1-year Supplying Demand warranty provided as long as purchased through authorized sellers of Pandora's OEM Appliance Parts.
Compatible with Napco, Gemline, Supco, Jepco, White-Rodgers, and Mars relays.
Description
24-volt relay. KSD301C. Located on furnace units that relay when to cycle heat on and off. "The trademarks, logos, and service marks (collectively the "Trademarks") displayed herein Supplying Demand are registered and unregistered trademarks of Supplying Demand, its affiliates, and others. Nothing contained herein should be construed as granting, by implication, estoppel, or otherwise, any license or right to use any trademark displayed herein without the written permission of Supplying Demand or such third party that may own the trademark displayed herein. Your misuse of the trademarks displayed herein, or any other content on this website, except as provided herein, is strictly prohibited."7. Protactor Electric Furnace Sequencer - Four Switches
Feature
Protactor Two Year Replacement PolicySequencer With Four Switches
Controls Four Elements Plus Fan - Frequently Used on 20 KW Furnaces
1/4" Quick Connect Terminals Marked M1-M2, M3-M4, M5-M6, and M7-M8
Replaces Four Stack Sequencers Used by Most Manufacturers
Description
This sequencer is a universal replacement for many electric furnace models. The M1 and M2 terminals come on first and close last to hold the blower in until the elements cool down. The bottom terminals are for the 24 volt control circuit connections. The low voltage terminals have jumper bars which may be removed with wire cutters if needed. This sequencer is commonly used in electric furnaces with four elements. This part is covered by the exclusive Protactor two year limited replacement policy. If this part fails within two years from date of purchase, return the defective part and a copy of the original invoice to the place of purchase for replacement. Contact the authorized Protactor dealer that you purchased the part from for details. Original equipment manufacturer's brand name(s) and part numbers are used for identification purposes only. This item is supplied by OneTrip Parts and meets or exceeds original equipment specifications.8. Emerson 90-341 Switching Relay, 115/120V
Feature
2-pole switching relay115/120 Volt
Replaces relay on 90-112, 90-113, 90-117, 90-118E, 90-119, 90-130
Dimensions 2-1/8" x 1-7/8" x 2-1/4"
DPDT Universal
Description
The White-Rodgers 90-341 switching relay is a 2 Pole relay with 115/120 VAC coil. This Type 91 relay features DPDT switching and two sets of power rated contacts.9. URBEST HH52P AC 24V Coil DPDT 8 Pins Electromagnetic Power Relay w DYF08A Base
Feature
Product Name : Electromagnetic Relay;Model No. : HH52P;Socket Model No. : DYF08ACoil Voltage : AC 24V;Contact Capacity : Contact Capacity;5A 240VAC /28VDC : 5A 240VAC /28VDC
Type : DPDT;Number of Terminals : 8;Mount Rail Type : 35mm DIN Rail
Fixing Mount Hole Size : 6 x 4mm/0.24" x 0.16"(L*W);Total Size (Approx.) : 68 x 22 x 65mm/2.7" x 0.9" x 2.6"(L*W*H);Shell Material : Plastic
Main Color : Black, Clear Blue;Net Weight : 58g;Package Content : 1 x Electromagnetic Relay
Description
8 Terminals, DPDT 2NO 2NC type, plastic housing, built in red indicator light. Can adjust automatically, protect and transform the electric circuit. Used widely in the remote control, communication, automatic control system, electronic equipments, etc.10. Supco 90380 General Purpose Fan Relay, 13 A Load Current, 24 V Coil Voltage, Normally Open and Normally Closed Contacts
Feature
Electric relay for receiving and controlling electric signalsControls signals for a fan
SPST-NO, SPST-NC, SPDT 1 NO/1 NC contact forms
Sealed enclosure
Description
The Supco 902 series fan relays receive and control electrical signals for general purpose fan applications. This fan relay has SPST-NO, SPST-NC, SPDT-NO/NC contacts made of silver alloy and coil voltage ratings of 24VAC to 240VAC. It is suitable for use in fan applications.
Specifications
| Contacts | SPST-NO, SPST-NC, SPDT, 1 NO/1 NC |
| Contact material | Silver alloy |
| Power ratings (all forms) | 125VAC, 18 amp resistive, 12 FLA, 60 LRA, 240/277VAC, 18 amp resistive, 8 FLA, 48 LRA |
| Special power ratings (form 1 and 2) | 125VAC, 14 FLA, 84 LRA, 277VAC, 25 amp resistive |
| Pilot ratings (all forms) | 3 amp, 277VAC general purpose 250VA at 250VAC 277VA at 277VAC 125VA at 125VAC |
| Coil voltage rating | 24, 120, 208/240, 77VAC, 12, 24 |
| Coil frequency | 50/60 Hz |
| Coil pick-up voltage | AC 85% of nominal, DC 75% of nominal |
| Coil power rating | AD DC, Inrush 5VA 3VA, Sealed 3VA 3VA |
Relay switches (also called an electrical relay or an electrical relay switch) use a small amount of power to control a larger source of power connected to electrical devices such as car motors, computers, and lighting installations. A basic relay switch has a control circuit with an electromagnetic coil and a load circuit with contacts and a lever. When current flows into the relay switch, it moves through the coil and a magnetic field is created, which causes the lever in the load circuit to move between contacts, either turning the device on or off. In a normally open (NO) relay switch, when power is supplied to the relay, the load circuit is closed and the power source connected to the relay is turned on. In a normally closed (NC) relay switch, when power is supplied to the relay, the load circuit is open and the power source connected to the relay is turned off. In other types of relay switches, non-moving parts such as transistors or semiconductors can be used as the control circuit to operate the switching mechanism. Relay switches can be controlled with an external switch, such as a light switch, or they can be connected to an automatically switched power source, such as a car ignition. One relay can operate multiple switches, and multiple relays can be operated with a single switch, with each relay operating independently from the other relays in the system.
Supco manufactures test instruments and replacement parts for heating, ventilation, air conditioning, and refrigeration systems. The company, founded in 1945, is headquartered in Allenwood, NJ.
