FREE delivery on orders over €150
WHITE-RODGERS 21M51U-843 Furnace Control, Universal, 24 V AC, 5 Minute Lockout, 15 Second Pre Purge
Item: AA8ARXModel: 21M51U-843Cross Ref: 16X595
7 In Stock
Ships within 2 days via
5.00% off
€382.03 /unit
Add To Cart
Request a Quote
Payment
Product Specifications:
| Item | Universal Ignition Control |
| Amps | 0.45A |
| Automatic Reset Time | 1 hr. |
| Board Type | Integrated Board |
| Compatible With Brand | Goodman, Lennox, Trane, White-Rodgers |
| Control Voltage | 24V AC |
| Control Volts | 24 |
| Cool Delay To Fan Off | 60 sec. |
| Cool Delay To Fan On | 5 sec. |
| Depth | 1 1/4" |
| Electrical Connection Type | 1/4" Spade Terminals, Molex Plug |
| Flame Sensor Output Amps | 0.3 µA |
| For Fuel Type | LP, Natural Gas |
| For Use With | Residential, Commercial Heating Equipment |
| Frequency | 50/60 Hz |
| Gas Type | Liquid Propane, Natural Gas |
| Heat Delay To Fan Off | 180 sec. |
| Heat Delay To Fan On | 45 sec. |
| Height | 8" |
| Igniter Warm Up Time | 17 sec. |
| Ignition Cycle Time | 90 Seconds (Hsi), 15 Seconds (Pre-Purge), 15 Seconds (Post Purge) |
| Included | Trane Ignitor Mounting Bracket |
| Lead Length | 15 1/2" |
| Lock Out Time | 5 min. |
| Main Valve Amps Output | 1.5A |
| Max. Operating Temp. | 175°F |
| Min. Operating Temp. | -40°F |
| No. Of Retries | 2 |
| Operating Temp. | -40°F to +175°F |
| Overall Depth | 1 1/4" |
| Overall Height | 8" |
| Overall Width | 5 1/4" |
| Pre-purge Time | 15 sec. |
| Probe Length | 15 1/2" |
| Product Datasheet | white-rodgers-21m51u-843.pdf |
| Product Type | Integrated Furnace Control |
| Replacement For Oem Part No. | 18M3401, 20300001, 20300003, 21M51U-843, 46M9901, 50M61-120, 50M61-242, 50M61-288, 50M61-289, 50M61-495, 50M61-843, 83L9301, CNT03077, CNT6424, D344301P01, KIT15943, PCBBF120S, PCBBF125, X13650839010 |
| Replacement For Oem Part Number | 18M3401, 20300001, 20300003, 21M51U-843, 46M9901, 50M61-120, 50M61-242, 50M61-288, 50M61-289, 50M61-495, 50M61-843, 83L9301, CNT03077, CNT6424, D344301P01, KIT15943, PCBBF120S, PCBBF125, X13650839010 |
| Replacement Type | Universal |
| Thermostat Anticipator Setting | No Thermostat Anticipator |
| Width | 5 1/4" |
Shipping Info:
| Ship weight (kg) | 0.74 |
| Ship height (cm) | 5.84 |
| Ship length (cm) | 27.94 |
| Ship width (cm) | 24.89 |
| HS code | 9032896025 |
| Country of Origin | MX |
Product Details:
- Electrical Ratings (24 VAC)
- Igniter Warm-Up Time (Sec.) (17)
- Prepurge Time (15 Sec.)
- Retries (2)
Documentation:
Product Variants
| Product | Model | Control Voltage | Amps | Depth | Height | Overall Width | Overall Height | Overall Depth | Replacement Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
 |
21V51U-843 | 24V AC | 0.45A | 1 1/4" | 8" | 5 1/4" | 8" | 1 1/4" | Universal | €465.10 | |
 |
50D50-843 | 24 | 0.2A | 1 1/2" | 4 1/8" | 4 1/8" | 4 1/8" | 1 1/2" | Oem | - | RFQ
|
Explore Products
- BROWNING 6U8V580 8V
- SMC VALVES NVS4114-0010F Solenoid Valve, 4/5 Port Size
- NTN 46720 Tapered Roller Bearing Cup, 8 7/32 Inch Bore, 8 7/8 Inch OD, 1.313 Inch Cup Width
- EATON FAZ-D2/1-NA-SP IEC Miniature Circuit Breaker, 2 A, 48 VDC, 10kA at 277/480 VAC, Screw Clamp, FAZ-NA
- KERN AND SOHN 338-06 Test Weight, 50mg, Polished Stainless Steel
- STANLEY SECURITY SOLUTIONS SPSLMLD16F630LH Mortise Lockset Lh 630 Storeroom
- WINTERS INSTRUMENTS PRL019 Regulator Gauge, 2X1/4 Inch, Npt Btm 30/0/100 Psi/Kpa
- SMC VALVES CDQ2B50-25DZ-A96 Compact Cylinder, 50Mm Bore Size, 25 Mm Stroke Length
Explore More
- CELLTREAT
- EGA PRODUCTS
- KEYSHAFT
- MANITOWOC
- RUTHERFORD
- Linoleum and Vinyl Flooring Tools
- Electric Confined Space Fans and Blowers
- Masonry Saws
- Lighting Control System Sensors
- Fuel and Lubricant Tubing
- CONDOR Men's Kevlar Cotton Heat Resistant Gloves
- ANSELL 37-145 Alphatec Solvex Dexterous Chemical Gloves
- ANSELL Class 00 Electrical Gloves, 14 Inch, Black
- CONDOR 3 Piece Rainsuit With Detachable Hood, PVC, 10 mil Thick, Lightweight, Yellow
- GLOBE SCIENTIFIC Diamond Culture Tube Caps, for 16 mm Glass Culture Tubes
- LUMENITE CONTROL TECHNOLOGY INC. Liquid Level Probes
- VERMONT GAGE Steel XX Go Reversible Assemblies, Red
- APOLLO VALVES 86B-300 Series 3 Piece Full Port Butt Weld Ball Valves
- APPROVED VENDOR 1/4" Outside Dia. Grade 18-8 Stainless Steel Female Round Standoffs
- LEGRIS Union Elbows
Contact us
Contact your account manager right away to get personal advice.
We're available Monday through Friday, from 07:30 until 17:00.
WHITE-RODGERS 21M51U-843 Furnace Control, Universal, 24 V AC, 5 Minute Lockout, 15 Second Pre Purge
€402.14 /unit