what size relay for electric fan

2) 75amp relay 3) Thermal Fan Switch (SPU-IX-195TS) 4) 12v switch 5) 12v /50amp circuit breaker (BSS-CBC50HB) 6) Inline fuse for ignition source 7) 12GA wiring (fan) 8) 14GA wiring 9) 2-pin connector for fan harness. I need to know where the fan relay wires in on the coil. I assume when the fan relay coil picks up then its contacts close and sends power to the fan. A fan harness, with temperature sensor, relay, inline fuse holder for fuse and wiring is usefull for a professional look to your wiring installation. Fan-Thom Electric Fan Relay Kit SPST 40 Amp Relay, Fan-Thom II Electric Fan Relay Kit W/Thermostat Protection SPST 40 Amp Relay, Single Fan-Dual Activation Fan Relay Kit 40 Amp Relay W/Base, Dual Fan-Dual Activation Fan Relay Kit (3) 40 Amp Relays W/Base, Weatherproof Electric Fan Relay Kit SPST 35 Amp Relay, Weatherproof Electric Fan Relay Kit W/Thermostat Protection SPST 35 Amp Relay, Universal 70 Amp Fan Relay Kit SPST 70 Amp Heavy Duty Relay, PCM Controlled Fan Relay Kit Ground Activated, Waterproof PCM Controlled Fan Relay Kit Ground Activated, Fan Relay Kit W/Thermostat - GM Gen III Engines SPST 40 Amp Relay, Weatherproof Fan Relay Kit w/Thermostat - GM Gen III Engines SPST 40 Amp relay, Replacement Thermostatic Switch 185 Degrees F On/175 Degrees F Off Includes 1/2 in. How to Wire a Cooling Fan to Your Car (DIY Electric): First off you're gonna need a car. The relay will have 4 points on it, marked 30, 87, 85 and 86. Here is a picture gallery about electric fan wiring diagram with relay complete with the description of the image, please find the image you need. Some relays also have part # 3523872 (1992-1997 Volvo 850). Universal 70 Amp Fan Relay Kit This kit is designed for running high amp dual fans or Monster fan set-ups. Clear editor. Left Most Relay - Standard automotive Bosch style relay. If the electric fan is big enough and really powerful, it can equal the cooling performance of a heavy duty fan clutch. A 30amp fuse on each would be the max. GM Gen III Fan Kit With ThermostatThis Fan-Thom II kit comes with a threaded thermostatic switch that screws into the extra coolant temperature sensor port of the passenger engine head on Generation III and up GM engines for a professional looking installation. It reveals the parts of the circuit as simplified forms, and the power and signal connections in between the gadgets. The cooling fan relay is the relay that controls the engine’s cooling fans. Only a few minutes for the installation and your cooling fan will come on when the engine reaches the preset temperature of the thermostatic switch mounted in the engine head or when the a/c is turned on. The attached drawing of the Derale 32 inch Dual Tornado Electric Fan Assembly, part # D16834 has the mounting brackets attached. Spal shows over 30 amps for their dual 11" fans. Cut another piece of the 10-gauge wire long enough to go to the fan. I have a ford mondeo fan on mine, tried it on a 20A fuse and it blew on start up, I have been running it on a 30A fuse for a while without a problem, doubt you'll get away with anything smaller. This heat would otherwise destroy the engine if allowed to remain. If you don’t grab the harness, you’ll have a hard time hooking up the fan relay. All cars fans share an earth with the headlights, so a slightly poor earth connection here may cause the headlights to … It uses a 40-Amp Electric Relay and Electric Fan Sensor. × 30 amps is normal rating for electric fans on cars, best to keep as few joins in the wiring as this often results in a higher power consumption and often over loads the fuse on start up. Some relays also have part # 3523872 (1992-1997 Volvo 850). It has an overall dimension of 16 ½ inches x 16 inches x 3 3/16 inches and it a powerful puller fan of its size. 1) Electric fan, 2500cfm minimum. Thank you! 12 Volt Relay Wiring Diagram - Collections Of Best Relay Wiring Diagram 5 Pin Bosch Endearing Enchanting Blurts. This is intended for tight areas as you said you have. Fan-Thom II Electric Fan Relay with Thermostat Protection KitThe Fan-Thom II gives you everything that the Fan Thom does plus it comes with a threaded thermostat that screws into the engine block or manifold for a professional installation. When I understand what you have I can show you how to connect the diodes. The high speed relay capacity will depend on the fan. Upload or insert images from URL. Wasn't my pick, though - the prior owner was the one that stuck it on there when he installed a teeny-tiny little 12" fan with some puny 18-gauge wire. I'd like to do as described here, but with the relay, and I would like to have my cooling fan … The important part to keep in mind is how much current your fan system will draw. Chris Davies, November 8, 2012 in International Forum. WHY? Thermostat thread size: 3/8"-18 NPTF fitting. Variety of electric furnace fan relay wiring diagram. Open 24x7 - Same Day Shipping! Thanks go to Bob Wilson (volvodad on Brickboard) for contributing to these differences. Install the thermoswitch into the cylinder head or intake manifold fitting as available per your application. Start your wiring project by taking both of the positive wires from the fans and run them to the yellow wires on each relay (tab 87). ya,those 19" metal electric fans work nice,but pull a ton of amps.jump your factory amp meter and install an aftermarket volt meter.factory amp guages can catch on fire when you pull that much power through them.make sure you set the fan up on a 40 amp relay and find a bigger alt (like the power master)if you are gonna keep that set up. When you get the fan, you’ll need the relays and wiring that come with it. Hvac Fan Relay Wiring Diagram Download. The relay simply is an electric switch. This way you can be sure only one circuit will be on at a time. Bosch Relay Bosch 75 amp relay, 0 332 002 156; 97-7695 is an OEM fan plug that mates to the lincoln fan with 2-12gauge and 1-10gauge 8" leads. Flex-a-lite fan controllers are much more than just a relay for your electric fans. I had a electric fan in a '63 ford pickup and I found out he hard way how important a relay is. Most 16 inch or smaller fans can get by with a 40A to 50A relay for the high speed. The purpose of this, is to reduce switch failure, on longer runs of wire. When you get the fan, you’ll need the relays and wiring that come with it. The low-speed sensor triggers the fan at 180 degrees … Or a single relay could be used to control both fans. By It is the highest-rated CFM fan available from manufacturer. It reveals the parts of the circuit as simplified forms, and the power and signal connections in between the gadgets. Accessories, Open 24x7 - Same Day Shipping! Flex-a-lite fan controllers are much more than just a relay for your electric fans. My old RRC had a leccy one from something, it had no less than 5 different varieties of cable from battery to switch and then to fan and earth, no relay and actually no fuse!!! 12 Volt Wiring Diagram Best 12v Relay Pin 5 and Roc Grp org In. Fan-Thom II Electric Fan Relay with Thermostat Protection Kit The Fan-Thom II gives you everything that the Fan Thom does plus it comes with a threaded thermostat that screws into the engine block or manifold for a professional installation. Bosch Relay Bosch 75 amp relay, 0 332 002 156; 97-7695 is an OEM fan plug that mates to the lincoln fan with 2-12gauge and 1-10gauge 8" leads. With the brackets attached, the overall depth is 1-3/4 inches. Yes after abit more research I was coming to the conclusion that 30amp fuse and 2.5mm wire is the way to go. You are now signed up to receive JEGS Deals with text alerts! Ratings Price Brand SPAL 185FH - Fan Wiring Harness Kit 185-Degree Thermo-Switch $68.14. For example, dual thermostat switches or dual relays could be used to control each fan separately. Getting the right size capacitor for an electric motor could mean the difference between starting the motor or not. So today we are working on my old 1964 Buick Skylark. A larger fan, such as the 18 inch Ford Taurus/T-Bird/ Lincoln Mk VIII fans, should use a 70A or 80A relay. Since the relay coil may produce unwanted voltage spikes into the circuit wiring (which may damage the electronics in some fan units), some effort has been made to suppress these. One relay and harness per fan is required for all fans that draw over 10 amps. Single/Dual Fan-Dual Activation Fan Relay Kit Installing air conditioning to your hot rod? If you are using 2 fans watching the fuse size, relay and wiring capacity is even more important. I run a 14" pusher fan in the front on a relay / stat set to around 210° so when the radiator upper portion gets hot the fan kicks on and an extra push of air used mainly for traffic situations so at least the radiator gets some air moving through it.   You cannot paste images directly. It uses our 40-Amp Electric Relay Kit, part number 91064044, and Electric Fan Sensor, part number 91064013. Pontiac Fieros have pretty good 2 speed electric … 87 (red wire) connects to the positive wire on the electric fan. JEGS 10591 - 30 Amp Circuit Breaker With Mount $4.40. Shoot for good quality 40 amp version (not the cheap 20 amp as shown in the picture). You can post now and register later. The dual 11 inch fan assembly (30102052) shown at the right works great on vehicles with smaller V8 engines and fits on most full size car and truck radiators. I assume when the fan relay coil picks up then its contacts close and sends power to the fan. Left me stranded in the middle of the intersection in town when the fan overloaded everything and I lost power to my ignition. 18" flex fan on the engine side with a half shroud. These kits utilize heavy duty waterproof relays, weatherproof circuit breaker covers and extreme condition weatherproof shrinkable crimp-on terminals. The Black Magic electric fan measures 18x16 inches and is 41/4 inches deep, making it the largest electric fan Flex-a-lite provides. There are generally two relay layouts and the wiring diagram assumes the first type below. A motor needs a little bit of energy to start the rotation of its metal shaft. All cars fans share an earth with the headlights, so a slightly poor earth connection here may cause the headlights to … What is in the circuit on the fan relay coil. We use cookies to ensure you get the best experience. It requires a high-amp alternator and Be Cool’s 40-amp waterproof relay to produce at peak performance. You can choose your own fan switch for your desired range and fitment. The supplied diagram is both the most reliable and easiest method I’ve found. To make the best use of the fan a Delta Current Control Module allows you to use the fan like an OEM (others are also available), ramping the fan speed up to control temperature. Sometimes these fans will cease to function properly. By using our website you agree to our Cookie Policy, Fitting and electric cooling fan, but what size fuse and wire. There are generally two relay layouts and the wiring diagram assumes the first type below. You can also make your own fan pairs with fans of the same or different diameters. To recap, our dual fan harnes includes everything you need to install your new electric fan setup: - Dual fan harness with 10 gauge wire, sealed 40 amp relays and sealed relay holders - Engineered brass 3/8" NPT 187F temperature switch - Installation kit including tie wraps, crimp connectors and mounting screws - Lifetime warranty Pontiac Fieros have pretty good 2 speed electric … × The cooling fan wiring diagram below is what we’ve found to be the simplest and most reliable method. Fan diameter is 18" and the fan blades are optimized for low noise but high flow. Thanks [email protected] Fan size and speed determine draw. Weatherproof Electric Fan Relay KitFor the harsh conditions encountered off-road, these relay kits provide complete protection from the elements and ensure reliable and dependable performance. FRH fan relay and harness for standard Spal fans. They control the fan blower and turn on the electric heating coils, one after another to prevent a massive power surge on the electrical system. NPT to 3/8 in. How to Wire your Light Using a Relay. They control the fan blower and turn on the electric heating coils, one after another to prevent a massive power surge on the electrical system. Electric Cooling Fans Schematics 4-cylinder cars 4-cylinder cars with added relay Factory V8 Factory V8 modified Hover over a wire to confirm the colour. A wiring diagram is a streamlined traditional photographic depiction of an electric circuit. You are now signed up to receive great E-Mail Offers! A fan shroud gasket is available for the 16" fan to protect your radiator from the possibility fan … Show all items you need Items You May Also Consider. Save $10 off $299, $20 off $599, $30 off $799, $100 off $1,599 - Promo Code: BUYNOW. Just cut the insulation off of the 16-gauge and twist the wire end and insert the 10-gauge and the 16-gauge together into the wire connector and crimp it. Need cooling fan relays to operate off of a thermostatic switch and when your a/c is on? Fan modules include all of the necessary components to convert from a mechanical fan to an electric fan for the LS swap.   Your previous content has been restored. They turn the electric fans on and off, most of them provide the ability to adjust the temperature at which the fans turn on and almost all of them take the place of relays that other brands of fans require. It's off an Astra car if thats any help. One of the best items that they have manufactured is the Flex-a-lite Electric Fan. 30 amps is normal rating for electric fans on cars, best to keep as few joins in the wiring as this often results in a higher power consumption and often over loads the fuse on start up. Two choices of thermostat switches are available, 185°F On/175° Off and 195°F On/185° Off. Thank you! (2-Speed electric fan from Volvo 940) Volvo Fan Relay: The 2-speed Volvo fans came with relay part # 1398845. Paste as plain text instead, × The color coded diagram below will correspond with the wires on the relay kit to help simplify the wiring process. Display as a link instead, × How to Wire a Cooling Fan to Your Car (DIY Electric): First off you're gonna need a car. ... VOLVO 2-Speed FAN RELAY Basics. So today we are working on my old 1964 Buick Skylark. Wire in the relay or have an auto-electric shop do it. Fan mounting brackets allow endless mounting locations for your fan. Fan-Thom II Electric Fan Relay with Thermostat Protection Kit The Fan-Thom II gives you everything that the Fan Thom does plus it comes with a threaded thermostat that screws into the engine block or manifold for a professional installation. Thermostat thread size: 3/8"-18 NPTF fitting. Outer dimensions of this fan are 22"W x 18.5"H x 6.25"D. 94 and 95 Taurus fans work, as do the SN95 Mustang fans and late-model low-hood T-birds. Name: furnace fan relay wiring diagram – Hvac Fan Wiring Diagram Best Hvac Relay Wiring Diagram Save Basic Relay Wiring Diagram New Fan; File Type: JPG; Source: yourproducthere.co; Size: 1,006.27 KB; Dimension: 5000 x 3704 Electric Cooling Fans Schematics 4-cylinder cars 4-cylinder cars with added relay Factory V8 Factory V8 modified Hover over a wire to confirm the colour. Variety of electric furnace fan relay wiring diagram. This is inexpensive protection for an electric fan and a vehicle's wire harness. Thermostat thread size: 3/8"-18 NPTF fitting. Use a female terminal on the other end and attach it to the switch terminal of the relay. Use a relay. Can you sketch the logic of the fan relay for me. Flex-a-lite is a famous brand with several popular car gears and parts in the market. Thanks [email protected] My old RRC had a leccy one from something, it had no less than 5 different varieties of cable from battery to switch and then to fan and earth, no relay and actually no fuse!! Use this handy 40 amp relay to wire up your 12 volt horn, electric fuel pump, electric fan with sensor, shaved door handles, or whatever! Capacitors store energy and then releases it … sensor & A/C relay : 111: 12" Lo-Profile S-blade electric fan puller w/adj. The above photograph shows a mains operated relay wired to a 4 core flex (connections soldered and heat shrunk to the tag terminals on the relay). Best practice on dual fans is to install two relays with separate fused power supplies as outlined above. Today we're going to take a look at the Derale 40 and 60-amp Dual Relay Wiring Harnesses for a Dual Fan Assembly. Note: Your post will require moderator approval before it will be visible. Since you are not using the 87a terminal you could use a 4 prong relay instead of the 5 prong. Hey, it's worked flawlessly for almost 5 years now, and a starter relay sees way more current than a little Bosch relay, so it's surely heavy-duty enough for a fan. Each relay will control a single fan, and a 30 amp fuse is recommended for each relay connection to the battery. The first thought that usually come to mind is whether the fan …   Your link has been automatically embedded. Anybody got a rough ball park figure of the power of an electric cooling fan? The best version of this system is the three-relay kit that comes with two temperature sensors. Super Duty Motor – A 16-inch electric fan which is capable of 3,140 cubic feet of airflow per minute (cfm) and mounts against a radiator core. (2-Speed electric fan from Volvo 940) Volvo Fan Relay: The 2-speed Volvo fans came with relay part # 1398845. To make the best use of the fan a Delta Current Control Module allows you to use the fan like an OEM (others are also available), ramping the fan speed up to control temperature. Weatherproof Electric Fan Relay Kit with Thermostat ProtectionThese Painless Electric Fan Relay Kits offer everything that the Weatherproof Electric Fan Relay Kit does while adding thermostat protection. A capacitor is used to supply this initial push to the motor. Also available in a Weatherproof version. Simple but effective thermostatic sensor and relay setup turn the fans on at 185 or 195 degrees. ! For anything above 30W we recommend installing a relay. Suggested Electric Fan Wiring Diagrams PAGE 1 Using relay controls. Provides constant voltage, protects from voltage and amperage spikes and prevents the fan from back feeding voltage through the vehicle's wire harness.   Pasted as rich text. Lots of people are using this relay to control 2-speed fans because it's cheap if you can find it used. Now basically if your electric fan including the one on your remote fan-mounted cooler draws more than 10-amps of power a relay is always recommended to prevent any disruption of your vehicle's electrical system. Fan mounting brackets allow endless mounting locations for your fan. For this set up we also used two of the Speedway Universal Electric Radiator Cooling Fan, part number 910158, which comes in a 10, 12, 14, or 16 inch diameter. I just want to work out what size fuse and how heavy the wiring should be. Can you sketch the logic of the fan relay for me. thermostat and A/C relay … The ford mondeo fan on my 90 needs a 40A fuse to start, but will run on a 20A fuse once it's started, if that gives you an idea. Fan diameter is 18" and the fan blades are optimized for low noise but high flow. Most parts stores carry toggle switches and/or push-pull switches that will handle anywhere from 30-60 amps, so that would work. A single 10 inch fan can draw anywhere from 5-20amps! What is in the circuit on the fan relay coil. JEGS 28011 - Thread Sealant 1/2 oz Tube $4.94. I began tinkering with electric primary cooling fan conversions in Volvo 240s back around 1997 after having less than a successful time keeping my '84 245 Turbo from running too hot during warm 100+ degree Southern California summers using the stock pulley fan. Either way, check the terminal numbers on the relay itself - The coil is always across 85 and 86. Outer dimensions of this fan are 22"W x 18.5"H x 6.25"D. 94 and 95 Taurus fans work, as do the SN95 Mustang fans and late-model low-hood T-birds. 10" electric fan pusher or puller w/ AC relay only : 60: 15" Chevy S-10 / Blazer electric fan (82-97) puller : 106: 6.5" electric fan : 108: 10" electric fan reversible w/o controls : 110: 12" Black electric fan puller w/ temp. 2020 JEGS High Performance. When I understand what you have I can show you how to connect the diodes. I'm using an old starter relay. sensor & A/C relay : 111: 12" Lo-Profile S-blade electric fan puller w/adj. All Rights Reserved. Either way, check the terminal numbers on the relay itself - The coil is always across 85 and 86. Also available in a Weatherproof version. If you do not install a relay and use a switch, you could end up overheating the switch, melting the wires, and reducing the current that is getting to your lights, making them less bright. The cooling fan relay is the relay that controls the engine’s cooling fans. Best Bosch Relay Wiring Diagram 5 Pole • Electrical Outlet Symbol 2018. 10" electric fan pusher or puller w/ AC relay only : 60: 15" Chevy S-10 / Blazer electric fan (82-97) puller : 106: 6.5" electric fan : 108: 10" electric fan reversible w/o controls : 110: 12" Black electric fan puller w/ temp. FRH-HO-K fan relay and harness for HO series fans : SPAL RELAY AND HARNESSES WITH THERMOSTATIC SWITCHES. Save $10 off $299, $20 off $599, $30 off $799, $100 off $1,599 Orders, Ships directly from the manufacturer on 12/16/20, Fan-Thom II Electric Fan Relay Kit W/Thermostat Protection, Ships directly from the manufacturer on 12/14/20, LSx Dual Fan-Dual Activation Fan Relay Kit, Weatherproof Electric Fan Relay Kit W/Thermostat Protection, Ships directly from the manufacturer on 12/08/20, Fan Relay Kit W/Thermostat - GM Gen III Engines, Weatherproof Fan Relay Kit w/Thermostat - GM Gen III Engines. The dual activation cooling fan relay kits by Painless Performance are exactly what you need. If you don’t grab the harness, you’ll have a hard time hooking up the fan relay. In a changeover relay, the 87a pin will be “HOT” anytime the 87 pin is "OFF," so long as power is connected to pin 30. I need to know where the fan relay wires in on the coil. thermostat and A/C relay : … 30 (other red … You have a thinner wire that activates the relay. Relays are a great idea. Description: Fan Control regarding Electric Fan Wiring Diagram With Relay, image size 700 X 683 px, and to view image details please click the image.. But the size of the fan and the size of the hole makes the difference. A fan harness, with temperature sensor, relay, inline fuse holder for fuse and wiring is usefull for a professional look to your wiring installation. Where Do the Four Wires of an Electric Fan Relay Go (with relay numbers)? This fan control kit can be used with single fan or multiple fan applications as long and the combined current draw does not exceed 30 amps. Most electric fans pull at least 15 amps, some 20 amps or more, so you'll need your switch to be able to handle that load. PCM Controlled Fan Relay KitPCM controlled fan relay kits contains the necessary length of wire and pin-outs for those wishing to control their fan operation using the vehicle's power control module rather than thermostatically. There are four types of fan designs Be Cool supplies: Super Duty Motor – A 16-inch electric fan which is capable of 3,140 cubic feet of airflow per minute (cfm) and mounts against a radiator core. JEGS 10557 - 30 Amp Relay For Electric Fan or Fuel Pump $13.22. A wiring diagram is a streamlined traditional photographic depiction of an electric circuit. Or a single relay could be used to control both fans. Name: furnace fan relay wiring diagram – Hvac Fan Wiring Diagram Best Hvac Relay Wiring Diagram Save Basic Relay Wiring Diagram New Fan; File Type: JPG; Source: yourproducthere.co; Size: 1,006.27 KB; Dimension: 5000 x 3704 Poor airflow due to dirty air filters causes the furnace to overheat and damage the sequencers, heating coils, fan relay and the limit switches. They turn the electric fans on and off, most of them provide the ability to adjust the temperature at which the fans turn on and almost all of them take the place of relays that other brands of fans require. Electric fan conversions for Volvo 240s. Electric engine cooling fans are used to help remove the excess heat produced by the engine during the combustion process. 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