49P11-843 White-Rodgers

N F O O I T R C A E C T P O E R A Emerson U Universal SureSwitch Contactor Upgrade 49P11-843 Universal Electronic Replacement for Mechanical Compressor Contactors Short- Cycle Timer Brownout Protection + = Long-Life Sealed Switch Contactor Benefits 5x contactor life L L 1 2 LINE Totally sealed switch to keep out ants and debris Y Microprocessor control nearly eliminates contact welding and pitting C LOAD Ideal install with new Preventative Maintenance contracts R C Compressor is protected from brownouts and short cycling Save on pest control treatments 5-Year Limited Warranty For up to 5 Ton/40 FLA applications P C E E O F I F L - M G I N N D O L Emerson SureSwitch Contactor Upgrade 49P11-843 Universal Electronic Replacement for Mechanical Compressor Contactors 21M51U-843 Performance Tested Features The sealed SureSwitch has underwent exhaustive testing on Microprocessor controlled sealed compressor switching Copeland 5-ton scroll compressors to demonstrate ultimate Line voltage brownout protection reliability. This technology has been utilized on OEM controls Short cycle protection since 2006 and is now available for the Aftermarket. Tricolor LED displays 5x Contactor Life Heavy-duty lug connectors Microprocessor Zero chatter latching relay controlled switching algorithms reduce Four-hole mounting matches mechanical contactors arcing, virtually Random start delay on power up and brownout recovery eliminating contact Compressor test and cycle count by pushbutton pitting and welding. Contacts after one million cycle testing. Terminal Designations 24 V 208/240 V C R L1 L2 Fan C Hard Cap CCH LED Flash Codes Y C Compressor Line Accessories Slow Green Standby 1/4 Spades Lugs 1/4 Spades Solid Green Normal Fast Green Delay Green / Red Low Line Volt. Green / Yellow / Red Test Specifications Electrical Ratings Dimensions Line Voltage Input ...................... 208/240 VAC, 50/60 Hz 2-3/4 W x 2-3/8 H x 3-7/8 L Full Load Amperes (FLA) ........................................... 40A Operating Temperature Range Locked Rotor Amperes (LRA) .................................. 200A -40 to 158 F (-40 to 70 C) Control (Coil) Voltage (Y, C)................. 24 VAC, 50/60 Hz Humidity Range Recommended Terminal Torque C, R, L1 and L2 4 6 AWG ....................................................... 45 in-lbs 5 to 95% relative Humidity (non-condensing) 8 AWG............................................................. 40 in-lbs For Additional Information 10 14 AWG ................................................... 35 in-lbs EmersonSureSwitch.com 24 VAC (Y, C) Terminals are Male QCs accepting 12-24 AWG wire Scan QR Code or visit us at www.white-rodgers.com Timings Anti-Short-Cycle Delay.....0s or 180s (selectable) at 60 Hz SureSwitch requires line voltage for operation and testing 0s or 216s (selectable) at 50 Hz Compressor Test ........................................... 5s at 60 Hz 6s at 50 Hz Saint Louis, Missouri Markham, Ontario 314-553-3600 905-948-3411 www.white-rodgers.com The Emerson logo is a trademark and www.emersonsureswitch.com WR-5976-5 a service mark of Emerson Electric Co.