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Defrost Switch
Price only visible to logged in users
Product number:
16777
Manufacturer number:
47-21776-01
Other models available
A2L Sensor
AC Center Cap
AC Ready Kit
AC ReNew Injector Tool - 4oz
Access Tee for Switch
Adapter
Adapter Kit - Half Union
Adapter Kit - Old AH Board to New Heater Kit
Adapter Plate
Adjustable AC Security Cage - 34"to59"H x 30"to51"W
Adjustable Motor Piece
Aerocel Tubing Insulation - 1-1/8"x3/4"
Aerocel Tubing Insulation - 1-1/8"x3/8"
Aerocel Tubing Insulation - 3/4"x1/2"
Aerocel Tubing Insulation - 3/4"x3/8"
Aerocel Tubing Insulation - 3/4"x3/8" Split
Aerocel Tubing Insulation - 7/8"x1/2"
Aerocel Tubing Insulation - 7/8"x3/8"
Aerocel Tubing Insulation - 7/8"x3/8" Split
Air Handler Adapter for Heater Kits
Aircone Coupling
All Purpose Clear Cement - 8oz
Alligator Clip - 6pack
Alligator Clips with Test Leads - 18gauge 36" - single
Ambient Sensor - 32º
Assembly
Assembly Plug Housing
Auxiliary Drain Pipe
Base Pan
Base Pan
Belly Band Mount
Belt - A42
Belt - A43
Belt - A49
Belt - A50
Belt - A52
Belt - B51
Belt - B55
Belt - B58
Belt - B59
Belt - B70
Belt - B71
Belt - B74
Belt - B79
Belt - B82
Blower Control Board
Blower Cut Off
Blower Cut Off
Blower Cut Off
Blower Door
Blower Relay
Blower Shelf Cover Assembly
Bottom Motor Plate Assembly
Bottom Plate Assembly 21"
Bracket - Front Support
Bulb Strainer
Bulkhead Valve Suction Line Tube
Burner
Burner
Burner
Burner
Burner
Burner
Burner
Burner
Burner Compartment Door
Burner Cover Plate
Burner Cover Plate
Burner Diffuser
Burner Door
Burner Manifold
Burner Manifold
Burner Orifice
Burner Orifice
Burner Orifice
Burner Orifice - LP
Burner Orifice - LP
Burner Orifice - Natural
Burner Orifice #41
Burner Orifice #44
Burner Orifice #47 .078"
Burner Orifice #49
Burner Orifice #51
Burner Orifice #52
Burner Orifice #58
Burner Tube
Burner Tube
Bushing - Inducer Coupling Insert
Bypass Damper - 10"
Cap Tube Assembly
Cap Tube Assembly
Cap Tube Assembly
Capacitor Strap
Center Cap Nameplate
Channel Bottom
Charge Compensator
Circuit Breaker
Circuit Breaker
Circuit Breaker
Circuit Breaker - 30A
Circuit Breaker - 60A 2P
Circulator - 1/25hp 115V Bronze 3/4"
Clear Closed Connectors - 12-10gauge - 25pack
Clear Closed Connectors - 22-14gauge - 50pack
Coil Assembly
Coil Assembly Indoor Tinned Tube
Coil Assembly Indoor Tinned Tube
Coil Assembly Indoor Tinned Tube
Coil Assembly Indoor Tinned Tube
Coil Shield Kit - RXCE-AN02
Collector Box Kit
Collector Box Kit
Collector Box Kit
Collector Box Kit
Collector Box Kit
Collector Box Kit
Collector Box Kit
Combustion Chamber Assembly
Comfort Alert Module
Compressor Bolt
Compressor Plug
Compressor Plug
Compressor Plug
Compressor Plug
Compressor Plug
Compressor Plug
Compressor with Motor Overload
Concentric Vent Termination Kit - Horizontal or Vertical
Concentric Vent Termination Kit - Horizontal or Vertical
Condensate Pan Safety Switch Main or Auxiliary
Condensate Pump SI33 - 120V Mini
Condensate Recovery Kit - 21"
Condenser Coil
Condenser Coil
Condenser Coil
Condenser Coil
Condenser Coil
Condenser Coil - Heat Pump
Connector Transition
Contactor - 25A
Contactor - 32A
Contactor - 3P 30A
Control - Low Ambient
Control 410A Low Ambient
Control Board
Control Board
Control Board
Control Board
Control Board
Control Board
Control Board
Conversion Kit 2ton - R454B to R410A
Conversion Kit 3ton - R454B to R410A
Conversion Kit 4ton - R454B to R410A
Conversion Kit 5ton - R454B to R410A
Core Sense Module
Coupling - Exhaust
Coupling - Inducer
Crankcase Heater
Crankcase Heater
Crankcase Heater
Crankcase Heater
Crankcase Heater
Crankcase Heater
Crankcase Heater
Crankcase Heater
Crankcase Heater
Cross Trap Kit - 3/4" Economy
Danfoss 083 Liquid Line Drier
DDC Controller
Defrost Board Sensor
Defrost Control Board
Defrost Control Board
Defrost Relay
Defrost Sensor
Defrost Sensor
Defrost Switch
Defrost Switch
Direct Spark Ignitor
Direct Spark Ignitor
Direct Spark Ignitor
Direct Spark Ignitor
Direct Spark Ignitor
Direct Spark Ignitor
Direct Spark Ignitor
Direct Spark Ignitor
Direct Spark Ignitor
Discharge Air Sensor
Discharge Sensor
Door Insert Thumbscrew Kit
Door Switch
Door Switch
Door Switch
Door Switch
Downflow Horizontal Left or Right Conversion Kit
Draft Smoke Stop Foam
Drain Pan
Drain Pan
Drain Pan
Drain Pan
Drain Pan - 14" Vertical 4row
Drain Pan - 17" Vertical
Drain Pan - 17" Vertical 6row
Drain Pan - 21" Vertical
Drain Pan - 24" Vertical
Drain Pan - 24" Vertical
Drain Pan - 27x63 Plastic
Drain Pan - RXBM-AC48
Drain Pan - RXBM-AC61
Drain Pan Assembly
Drain Pan Assembly
Drain Pan Assembly
Drain Pan Assembly
Drain Pan Assembly
Drain Pan Assembly
Drain Pan Assembly
Drain Pan Assembly
Drain Tube
Drain Tube
Drain Tube Kit
Drain Tubing
Dual Pressure Switch
Dual Pressure Switch
Dual Pressure Switch
Dual Pressure Switch
Dual Pressure Switch
Dual Pressure Switch - .15" WC .30" WC
Dual Pressure Switch - .30" WC .50" WC
Dual Pressure Switch - .50" WC 1.50" WC
Dual Pressure Switch - .85" WC .50" WC
Dual Pressure Switch - .86" WC 1.20" WC
Duct Smoke Detector
Econet Air
Econet Zoning Damper 10x16
Econet Zoning Damper 10x24
Econet Zoning Damper 14x10
Econet Zoning Damper 14x8
Econet Zoning Damper 18x8
Economizer Resistor Kit
Elbow - 45º
Electric Element
Electrode Insulator Kit
Electrode Kit
Ensite Motor Programmer Harness
Enthalpy Sensor
Equalizer Tube
Equalizer Tube
Exhaust Hood
Fan and Limit
Fan Control Board
Fast Stat Common Maker
Fiberglass Gasket
Filter Drier
Filter Permanent
Flame Sensor
Flame Sensor
Flame Sensor
Flame Sensor
Flame Sensor
Flex Gas Connector - 12" x 1/2" MxF
Flue Box Assembly
Flue Hood
Flue Hood
Freeze Stat - L50
Furnace Kit for 80% Upflow
Furnace Kit for 90% 2stage
Fuse 3A - 5pack
Fuse 3A - Mini Blade Type
Fuse Link - 285º
Fuses - 5pack
Gas Pipe Grommet
Gasket
Gasket - Condensate Trap
Grille Assembly
Grille Assembly
Grille Assembly
Grille Assembly
Grooved Sheave - 4.75
Heat Cell - Aluminum
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger Front Plate
Heat Exchanger Tube
Heat Exchanger Tube
Heat Shield
Heat Shrink Tubing Assortment - 1/4" 5pack
Heater Element
Heater Element
Heater Element
High Pressure Limit
High Pressure Limit
High Pressure Limit
High Pressure Limit
High Pressure Limit
High Pressure Limit
High Pressure Limit - 440
High Pressure Limit - 610
High Pressure Limit - Auto Reset
High Pressure Switch
High Pressure Switch - .55" WC
Hook and Loop Fastener with Buckle - 12" Black 6pack
Horizontal Drain Pan
Horizontal Drain Pan
Horizontal Drain Pan
Horizontal Drain Pan
Horizontal Drain Pan
Horizontal Drain Pan
Hose Clamp
Ignitor
Ignitor
Ignitor
Ignitor - 24V Ignition Module
Inducer Change Kit
Insulated Ring Terminals - #10 Stud 25pack
Insulated Ring Terminals - #10 Stud 25pack
Integrated Furnace Control Board
Integrated Furnace Control Board
Inverter Drive VFD TTF310
Inverter Drive VFD TTF420
Inverter Drive VFD TTF420
Inverter Drive VFD TTF420
Inverter Drive VFD TTM240
Inverter Drive VFD TTN150
Jumper
Kickstart - KS1
Kickstart - TO5
Leak Kit
Leak Kit
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Limit Switch - 100º to 110º Auto Reset
Limit Switch - 120º
Limit Switch - 120º Auto Reset
Limit Switch - 120º Open Auto Reset
Limit Switch - 130º Open 110º Close Auto Reset
Limit Switch - 130º Open 110º Close SPST NC Auto Reset
Limit Switch - 130º Open 110º Close SPST NC Auto Reset
Limit Switch - 145º to 165º Auto Reset
Limit Switch - 150º
Limit Switch - 150º Open 105º Close
Limit Switch - 150º Open 120º Close SPST NC Auto Reset
Limit Switch - 160º Open 140º Close Main Auto Reset
Limit Switch - 165º Airstream
Limit Switch - 170º Open 130º Close Main Auto Reset
Limit Switch - 170º Open 150º Close
Limit Switch - 175º SPST
Limit Switch - 180º Auto Reset SPST
Limit Switch - 190º Auto Reset
Limit Switch - 200º
Limit Switch - 200º to 220º Auto Reset
Limit Switch - 210º Open 190º Close
Limit Switch - 230º Open 210º Close
Limit Switch - 250º Manual Reset
Limit Switch - 350º Manual Reset Flanged
Limit Switch - 610º Open 420º Close
Limit Switch - Auto Reset
Limit Switch - Auto Reset
Limit Switch - Auto Reset
Limit Switch - Auto Reset
Limit Switch - Auto Reset
Limit Switch - Defrost Sensor Auto Reset
Limit Switch - Main
Limit Switch - Manual Reset
Limit Switch - Replaces 47-23610-03
Limit Switch - SPST NC
Loop Cable Zip Tie
Low Ambient Control
Low Ambient Sensor 120º
Low Pressure Limit
Low Pressure Limit
Low Pressure Limit
Low Pressure Limit
Low Pressure Limit
Low Pressure Limit
Low Pressure Limit
Low Pressure Limit
Low Pressure Limit - 205º Open 450º Close
Low Pressure Switch
Low Pressure Switch - .50" WC
Low Pressure Switch - 35open 60close
Low Pressure Switch - Auto Reset
Low Pressure Switch - RXGL-AP01
Main Limit - 170º
Maintenance Kit - 15kw to 20kw
Manifold Assembly
Manifold Assembly
Manifold Assembly
Manifold Plug
Micro Channel Coil
Micro Channel Coil
Micro Channel Coil
Micro Channel Coil
Micro Channel Coil
Micro Channel Coil
Micro Channel Coil
Micro Channel Coil
Micro Channel Coil Repair Kit
Model Data Memory Card
Model Data Memory Card
Model Data Memory Card
Model Data Memory Card
Model Data Memory Card
Model Data Memory Card
Model Data Memory Card
Model Data Memory Card for UA1736
Motor - 1/3hp GEN3
Motor Coupling
Motor Module - Selectech Rescue Select Replaces Kit33
Motor Mount
Motor Mount Bracket
Muffler
Nox Insert
Nox Insert
Nylon Glass Caps - 1/4" 25pack
OA Enthalpy Sensor
Oil Burner Head
Oil Nozzle
Outlet Air Pipe
Outlet Air Pipe
Parts Bag
Patch Panel - Large
PD425140
Pilot Assembly
Pilot Assembly
Pilot Assembly
Pilot Burner
Pilot Tubing
Pipe Assembly
Pipe Assembly
Pipe Flashing - Poly
Pipe Flashing - Poly
Plug Rubber .403"
Plug Rubber .559"
Power Factor Choke
Power Factor Choke
Power Factor Choke
Power Factor Choke
Power Factor Choke
Power Inventer 4.2kw
Power Inventer 7.1kw
Power Inverter
Power Inverter
Power Inverter
Power Inverter
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch
Pressure Switch - .20" WC
Pressure Switch - .25" WC Drain
Pressure Switch - .30" WC
Pressure Switch - .40" WC
Pressure Switch - .40" WC RGRC Drain
Pressure Switch - .50" WC
Pressure Switch - .50" WC
Pressure Switch - .60" WC
Pressure Switch - .60" WC
Pressure Switch - .60" WC
Pressure Switch - .70" WC
Pressure Switch - .70" WC
Pressure Switch - 1.00" WC
Pressure Switch - 1.80" WC
Pressure Switch - 1" WC
Pressure Switch - RGRM10 AFT 3010
Pressure Switch - RGRM12
Pressure Transducer
Pressure Transducer
Prestige Strip
Primary Control Ignitor Kit
Programming Cable - EMC
PVC Trap
Quick Connect Female Fully Insulated - 16-14gauge 1/4"
Quick Connect Female Insulated - 12-10gauge 1/4"
Quick Connect Female Insulated - 12-10gauge 1/4"
Quick Connect Female Insulated - 16-14gauge 1/4"
Quick Connect Female Insulated - 16-14gauge 1/4"
Quick Connect Female Insulated with Piggyback - 16-14gauge 1/4"
Quick Connect Female to Double Male - Flat Style
Quick Connect Female to Double Male - Piggyback
Quick Connect Female Uninsulated Flag - 1/4"
Quick Connect Female Uninsulated Flag - 1/4"
Quick Connect Male Insulated - 16-14gauge 1/4"
Recovery Cylinder
Relay
Relay
Relay
Relay
Relay
Relay - SPDT 230V
Relay - SPDT 24V
Relay - SPST 24V
Relay - SPST 24V
Relay - SPST NO 24V
Relay - Time Delay
Replacement EEV Assembly with Chatleff Fittings
Replacement EEV Assembly with Chatleff Fittings
Rooftop Unit Controller RTU-C with VAV
Rubber Ptrap
Ruud Label
Sampling Tube 3
Sensor and Clip Assembly
Sequencer
Sequencer
Sequencer
Sequencer
Sequencer
Sequencing Relay
Sequencing Relay
Sequencing Relay
Sequencing Relay
Sequencing Relay - 2P 24V
Service Valve - 3/4"
Service Valve - Copper Tube Economy
Service Valve - Copper Tube Premium
Service Valve - Saddle Mount
Sheath Heater
Sheave - Adjustable 3.15"
Sheave - Fixed
Sheave - Fixed
Sheave - Fixed
Sheave - Fixed
Sheave - Fixed
Sheave - Fixed
Sheave - Fixed
Sheave - Variable
Sheave - Variable
Sheave - Variable
Sheave - Variable
Sheave - Variable
Side Wall Termination Kit - 3"
Side Wall Vent Termination Kit
Sight Glass Kit
Silicone Tubing
Silicone Tubing
Silicone Tubing
Silicone Tubing - 3/16"x36"
Slinger
Solenoid Coil - 2stage
Solid Bottom Panel
Spade Terminals - #8 Stud Insulated 16-14gauge
Spill Limit
SS Burner Tube Assembly
SS Burner Tube Assembly
Start Relay
Start Relay
Start Relay
Stat Freeze
Static Pressure Meter - Smartphone
Static Pressure Meter and Probe
Suction Temp Sensor and Clip Assembly
Tee
Tee - 3/16"
Terminal Block
Terminal Block
Terminal Block - Ceramic 4pin
Terminal Box
Thermistor
Thermistor
Thermistor
Thermistor Repair Kit
Time Delay Relay
Time Delay Relay
Time Delay Relay
Time Delay Relay
Time Delay Relay
Time Delay Relay
Top Plate and Collector Box Kit
Top Plate Assembly
Top Plate Gasket
Transformer - 50VA U96 U97 All
Transition Gasket
Trap Assembly
Trap Assembly
Trap Assembly
Trap Assembly
Trap Assembly
Trap Assembly
Trap Assembly
Trap Elbow Assembly
Trap Elbow Assembly
Tubing - 1/4"x15"
Tubing - Dampener Kit
Tubing - Santoprene
Turbulator
Valve Core Removal Tool
Venturi
Venturi
Venturi
Vinyl Tubing - 7/8" 50' roll
Water Pump
Water Pump
Water Sensor
Water Trap Condensate Drain
Water Trap Kit
Wire 14gauge - Black 15'
Wire 16gauge - Black 16'
Wire and Cable Zip Ties - Black 11"
Wire and Cable Zip Ties - Black 14"
Wire and Cable Zip Ties - Black 4"
Wire and Cable Zip Ties - Natural 11"
Wire and Cable Zip Ties with Mounting Hole - Black
Wire Assembly
Wire Condenser Grille
Wire Condenser Grille
Wire Condenser Grille
Wire Condenser Grille
Wire Condenser Grille
Wire Condenser Grille
Wire Condenser Grille
Wire Condenser Grille
Wire Condenser Grille
Wire Condenser Grille
Wire Condenser Grille - 24"
Wire Condenser Grille - 24"
Wire Harness - 9pin
Wire Round Damper Power Open Closed
Wire Round Damper Power Open Closed
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness
Wiring Harness 15pin to 12pin
Wiring Harness 15pin to 3pin, 2pin and 11 Straight Terminals
Wiring Harness 4pin Blower to 4pin
Wiring Harness 9pin to 9pin
Wiring Harness 9pin to 9pin
Wiring Harness ECM 16pin
Wiring Harness Motorized Outside Air Damper
Wiring Harness Twistlock Assembly
Wiring Harness Twistlock Assembly
Wiring Harness U97 U98 Assembly
Zero Clearance Kit
Technical details
General Information
Contact Configuration
SPST - NO
Product Group
Rheem Parts
Application
Description
Electrical
Product description
Rheem; 47-21776-01 Defrost Control Board, 18/30 V, 1 A
Variants
Technical details
Variants
General Information
Contact Configuration
SPST - NO
Product Group
Rheem Parts
Application
Description
Electrical
Product description
Rheem; 47-21776-01 Defrost Control Board, 18/30 V, 1 A
