HVAC
Plumbing
Electric & Solar
Tools & Test Instruments
Compressors
Categories
Price
Type List
Brand List
Items 1 to 57 of 57 total
BRAND: MARS
ID: #MA100-1S9-0041
Available in 2-4 days
$57.00 USD
Direct replacement relays for Copelaweld® hermetic air conditioning compressor applications
Contact your local Johnstone Supply for complete specifications
SKU:
16099
Vendor:
MARS
Type:
Direct Replacement Relay for Copeland
Availability:
In-Stock
$57.00 USD
Combination relay, overload and start capacitor
Provides additional boost to compressor
Completely pre-wired and installs quickly and easily
SKU:
RCO810
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$20.83 USD
BRAND: White-Rodgers
ID: #WR100-1S9-1207
Available in 2-4 days
Sold Out
Replacement for Mars/GE type 3ARR3 Type 128000 relays will replace thousands of relays for 1/4 to 5 HP compressors All are non-positional, have universal mounting...
SKU:
90-67
Vendor:
White-Rodgers
Type:
Potential Relays
Availability:
Out-Stock
Sold Out
Allows for the exact wire-by-wire replacement of virtually all potential relays with pick-up voltages from 130 to 370 Replaces both 5-terminal and 3-terminal potential relays...
SKU:
APR-5
Vendor:
Supco
Type:
Relays
Availability:
Out-Stock
Sold Out
Protectors have a temperature actuated disc that opens and closes contacts Disc opens at a combination of the heat generated by the motor or compressor...
SKU:
OV38
Vendor:
Supco
Type:
Overload
Availability:
Out-Stock
Sold Out
BRAND: Supco
ID: #S150-1S9-0100
Available in 2-4 days
$16.21 USD
Replaces all hermetic refrigerator compressor relay/overload units from 1/12 HP through 1/3 HP Available in wire-on or push-on style
SKU:
PRO41
Vendor:
Supco
Type:
Overload
Availability:
In-Stock
$16.21 USD
Combination relay and start capacitor For any PSC A/C and CSIR units, from 4,000 to 120,000 BtuH Connect two wires to existing run capacitor for...
SKU:
SPP5
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$11.98 USD
BRAND: ICM
ID: #PH501-2S9-3219
$56.69 USD
Replaces: SUPCO: SPP5, SPP6, SPP5E, SPP6E, SPP7E, SPP8E, SPP9E, SPP10E, RCO810, RCO410, RCO210; KICKSTART: KS1, TO-5, KS8, 5-2-1: CSR-U1, CSR-U2, CSR-U3: WATSCO: WSX1; MARS: 32708, SS1, SS5, 32703, 32704,...
SKU:
ICM866U-LF
Vendor:
ICM
Type:
Hard Start
Availability:
In-Stock
$56.69 USD
BRAND: ICM
ID: #PH501-2S9-3207
$26.08 USD
Replaces: SUPCO: RCO210
SKU:
ICM859
Vendor:
ICM
Type:
Hard Start
Availability:
In-Stock
$26.08 USD
BRAND: ICM
ID: #PH501-2S9-3206
$26.06 USD
Replaces: MARS: 32741; SUPCO: RCO410
SKU:
ICM858
Vendor:
ICM
Type:
Hard Start
Availability:
In-Stock
$26.06 USD
BRAND: ICM
ID: #PH501-2S9-3201
$24.87 USD
PTCR Hard Start with Positive Coeffecient Technology for 2-5 HP applications Specifications: Voltage: 115-288 VAC Capacitor: 88-106 Mfd., 330V Range: 1/2 to 10 HP range...
SKU:
ICM856
Vendor:
ICM
Type:
Hard Start
Availability:
In-Stock
$24.87 USD
BRAND: ICM
ID: #PH501-2S9-3200
Replaces: MARS: 32781; SUPCO: RCO810
$20.09 USD
ICM857 Solid State Relay, Overload and Start Capacitor for 1/12 - 1/5 HP applications (120V) Specifications: Operating Voltage: 120V Maximum Voltage: 180V Maximum Current Retry...
SKU:
ICM857
Vendor:
ICM
Type:
Hard Start
Availability:
In-Stock
$20.09 USD
BRAND: ICM
ID: #PH501-2S9-3184
$17.46 USD
ICM855 PTCR Hard Start with Positive Coeffecient Technology for up to 1.5 HP applications Specifications: Voltage: 115-288 VAC Capacitor: 43-52 Mfd., 330V Range: 1/2 to...
SKU:
ICM855
Vendor:
ICM
Type:
Hard Start
Availability:
In-Stock
$17.46 USD
BRAND: MARS
ID: #MA100-1S9-0044
Available in 2-4 days
$66.00 USD
2-Wire Universal Hard Start Device Using Low Loss Metallized Motor-Start Capacitor with Built-In Potential Relay
SKU:
12600
Vendor:
MARS
Type:
Turbo Easy-Start Hard Start
Availability:
In-Stock
$66.00 USD
BRAND: MARS
ID: #MA100-1S9-0043
Available in 2-4 days
$48.00 USD
Direct replacement relays for Copelaweld® hermetic air conditioning compressor applications
Contact your local Johnstone Supply for complete specifications
SKU:
16152
Vendor:
MARS
Type:
Direct Replacement Relay for Copeland
Availability:
In-Stock
$48.00 USD
BRAND: MARS
ID: #MA100-1S9-0042
Available in 2-4 days
Sold Out
Direct replacement relays for Copelaweld® hermetic air conditioning compressor applications
Contact your local Johnstone Supply for complete specifications
SKU:
16089
Vendor:
MARS
Type:
Direct Replacement Relay for Copeland
Availability:
Out-Stock
Sold Out
BRAND: MARS
ID: #MA100-1S9-0040
Available in 2-4 days
$114.00 USD
Includes instructions, mounting brackets, spade adapters and screws
Terminal connections are screw-type and can be converted to push-on
SKU:
19007
Vendor:
MARS
Type:
Potential Relay Universal Replacement
Availability:
In-Stock
$114.00 USD
BRAND: MARS
ID: #MA100-1S9-0039
Available in 2-4 days
$108.00 USD
Includes instructions, mounting brackets, spade adapters and screws
Terminal connections are screw-type and can be converted to push-on
SKU:
19010
Vendor:
MARS
Type:
Potential Relay Universal Replacement
Availability:
In-Stock
$108.00 USD
BRAND: MARS
ID: #MA100-1S9-0038
Available in 2-4 days
$107.00 USD
Includes instructions, mounting brackets, spade adapters and screws
Terminal connections are screw-type and can be converted to push-on
SKU:
19005
Vendor:
MARS
Type:
Potential Relay Universal Replacement
Availability:
In-Stock
$107.00 USD
BRAND: MARS
ID: #MA100-1S9-0037
Available in 2-4 days
$54.00 USD
Direct replacement relays for Copelaweld® hermetic air conditioning compressor applications
Contact your local Johnstone Supply for complete specifications
SKU:
16091
Vendor:
MARS
Type:
Direct Replacement Relay for Copeland
Availability:
In-Stock
$54.00 USD
BRAND: MARS
ID: #MA100-1S9-0035
Available in 2-4 days
$48.00 USD
Direct replacement relays for Copelaweld® hermetic air conditioning compressor applications
Contact your local Johnstone Supply for complete specifications
SKU:
16023
Vendor:
MARS
Type:
Direct Replacement Relay for Copeland
Availability:
In-Stock
$48.00 USD
BRAND: MARS
ID: #MA100-1S9-0035
Available in 2-4 days
Sold Out
Includes instructions, mounting brackets, spade adapters and screws
Terminal connections are screw-type and can be converted to push-on
SKU:
19003
Vendor:
MARS
Type:
Potential Relay Universal Replacement
Availability:
Out-Stock
Sold Out
BRAND: White-Rodgers
ID: #WR100-1S9-1208
Available in 2-4 days
$56.35 USD
Replacement for Mars/GE type 3ARR3 Type 128000 relays will replace thousands of relays for 1/4 to 5 HP compressors All are non-positional, have universal mounting...
SKU:
90-68
Vendor:
White-Rodgers
Type:
Potential Relays
Availability:
In-Stock
$56.35 USD
BRAND: White-Rodgers
ID: #WR100-1S9-1206
Available in 2-4 days
$56.35 USD
Replacement for Mars/GE type 3ARR3 Type 128000 relays will replace thousands of relays for 1/4 to 5 HP compressors All are non-positional, have universal mounting...
SKU:
90-65
Vendor:
White-Rodgers
Type:
Potential Relays
Availability:
In-Stock
$56.35 USD
BRAND: White-Rodgers
ID: #WR100-1S9-1205
Available in 2-4 days
Sold Out
Replacement for Mars/GE type 3ARR3 Type 128000 relays will replace thousands of relays for 1/4 to 5 HP compressors All are non-positional, have universal mounting...
SKU:
90-66
Vendor:
White-Rodgers
Type:
Potential Relays
Availability:
Out-Stock
Sold Out
BRAND: White-Rodgers
ID: #WR100-1S9-1204
Available in 2-4 days
$56.35 USD
Replacement for Mars/GE type 3ARR3 Type 128000 relays will replace thousands of relays for 1/4 to 5 HP compressors All are non-positional, have universal mounting...
SKU:
90-63
Vendor:
White-Rodgers
Type:
Potential Relays
Availability:
In-Stock
$56.35 USD
Replace GE 3ARR2 and 3ARR12 series, Klixon #C6360, 9660 and 3CR series Mount with quick snap-on bracket or mounting screws Solid state means long life,...
SKU:
ICG-220
Vendor:
Supco
Type:
Relays
Availability:
In-Stock
$12.74 USD
Replace GE 3ARR2 and 3ARR12 series, Klixon #C6360, 9660 and 3CR series Mount with quick snap-on bracket or mounting screws Solid state means long life,...
SKU:
ICG1
Vendor:
Supco
Type:
Relays
Availability:
In-Stock
$10.42 USD
BRAND: Supco
ID: #S150-1S9-0109
$12.74 USD
Hundreds of different relays no longer must be matched for specific windings
Solid state eliminates contact points
SKU:
PO115
Vendor:
Supco
Type:
Relays
Availability:
In-Stock
$12.74 USD
Wire-to-wire replacement for all potential motor starting relays for compressors rated at 110 to 270VAC, single-phase, up to 5 HP with any pick-up voltage Has...
SKU:
SUPR
Vendor:
Supco
Type:
Relays
Availability:
In-Stock
$32.00 USD
BRAND: Supco
ID: #S150-1S9-0106
Available in 2-4 days
$22.00 USD
Replaces all hermetic refrigerator compressor relay/overload units from 1/12 HP through 1/3 HP Available in wire-on or push-on style
SKU:
RO42
Vendor:
Supco
Type:
Overload
Availability:
In-Stock
$22.00 USD
Protectors have a temperature actuated disc that opens and closes contacts Disc opens at a combination of the heat generated by the motor or compressor...
SKU:
OV32
Vendor:
Supco
Type:
Overload
Availability:
Out-Stock
Sold Out
Protectors have a temperature actuated disc that opens and closes contacts Disc opens at a combination of the heat generated by the motor or compressor...
SKU:
OV48
Vendor:
Supco
Type:
Overload
Availability:
In-Stock
$15.05 USD
Protectors have a temperature actuated disc that opens and closes contacts Disc opens at a combination of the heat generated by the motor or compressor...
SKU:
OV46
Vendor:
Supco
Type:
Overload
Availability:
In-Stock
$15.05 USD
Protectors have a temperature actuated disc that opens and closes contacts Disc opens at a combination of the heat generated by the motor or compressor...
SKU:
OV50
Vendor:
Supco
Type:
Overload
Availability:
In-Stock
$15.05 USD
BRAND: Supco
ID: #S150-1S9-0099
Available in 2-4 days
$16.21 USD
Replaces all hermetic refrigerator compressor relay/overload units from 1/12 HP through 1/3 HP Available in wire-on or push-on style
SKU:
RO41
Vendor:
Supco
Type:
Overload
Availability:
In-Stock
$16.21 USD
BRAND: Supco
ID: #S150-1S9-0098
Available in 2-4 days
$16.21 USD
Replaces all hermetic refrigerator compressor relay/overload units from 1/12 HP through 1/3 HP Available in wire-on or push-on style
SKU:
PRO81
Vendor:
Supco
Type:
Overload
Availability:
In-Stock
$16.21 USD
Availability:
Out-Stock
Sold Out
Mechanical potential relay Easy 2-wire installation NATE® recognized (Course #1867-0002) Voltage sensing and instant re-start Can be used on PSC and CSIR type compressors UL®...
SKU:
SPR1
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$69.46 USD
Combination relay, overload and start capacitor For all motors including high starting torque motors 1/4 and 1/3 HP on domestic and commercial refrigerators and freezers...
SKU:
SS410
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$46.31 USD
BRAND: Supco
ID: #S150-1S9-0094
Available in 2-4 days
$50.94 USD
2-wire mechanical potential relay hard start For use on 208V/230V/265V single phase reciprocating, scroll and rotary compressors Instant re-start
Includes mounting cap
SKU:
MPR5
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$50.94 USD
BRAND: Supco
ID: #S150-1S9-0092
Available in 2-4 days
Sold Out
Universal combination relay, overload and start capacitor Provides additional boost to compressor Completely pre-wired for quick and easy installation For use on systems with or...
SKU:
URCO210RC
Vendor:
Supco
Type:
Hard Start
Availability:
Out-Stock
Sold Out
BRAND: Supco
ID: #S150-1S9-0091
Available in 2-4 days
$32.41 USD
Universal combination relay, overload and start capacitor Provides additional boost to compressor Completely pre-wired for quick and easy installation For use on systems with or...
SKU:
URCO410RC
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$32.41 USD
BRAND: Supco
ID: #S150-1S9-0090
Available in 2-4 days
$65.98 USD
3-wire mechanical potential relay hard start For use on 208/240V single phase scroll and reciprocating compressors Instant re-start Includes EZ Snap Bracket for quick installation...
SKU:
3W3
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$65.98 USD
Mechanical potential relay Easy 2-wire installation NATE® recognized (Course #1867-0002) Voltage sensing and instant re-start Can be used on PSC and CSIR type compressors UL®...
SKU:
SPR5
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$64.83 USD
3-wire mechanical potential relay hard start For use on 208/240V single phase scroll and reciprocating compressors Instant re-start Includes EZ Snap Bracket for quick installation...
SKU:
3W2
Vendor:
Supco
Type:
Hard Start
Availability:
Out-Stock
Sold Out
BRAND: Supco
ID: #S150-1S9-0087
Available in 2-4 days
$27.78 USD
Universal combination relay, overload and start capacitor Provides additional boost to compressor Completely pre-wired for quick and easy installation For use on systems with or...
SKU:
URCO810
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$27.78 USD
Electronic potential relay and start capacitor for use on PSC technology or CSIR units Backup electronic timing circuit to protect the compressor Voltage sensing, instant...
SKU:
SPP7E
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$59.04 USD
Combination relay and start capacitor One size fits 1/12 through 1/2 HP compressors Fits domestic and commercial refrigerators and freezers Pre-wired for fast, simple hook-up;...
SKU:
URSC10
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$24.31 USD
3-wire mechanical potential relay hard start For use on 208/240V single phase scroll and reciprocating compressors Instant re-start Includes EZ Snap Bracket for quick installation...
SKU:
3W1
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$45.15 USD
Electronic potential relay and start capacitor for use on PSC technology or CSIR units Backup electronic timing circuit to protect the compressor Voltage sensing, instant...
SKU:
SPP6E
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$49.78 USD
Universal combination relay, overload and start capacitor Provides additional boost to compressor Completely pre-wired for quick and easy installation For use on systems with or...
SKU:
URCO410
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$25.47 USD
Combination relay and start capacitor For any PSC A/C and CSIR units, from 4,000 to 120,000 BtuH Connect two wires to existing run capacitor for...
SKU:
SPP7S
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$35.89 USD
Combination relay, overload and start capacitor
Provides additional boost to compressor
SKU:
RCO410
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$20.83 USD
Combination relay and start capacitor Gives up to 500% additional starting torque to single-phase 120/288VAC units from 4,000 to 120,000 BtuH Two-wire connection to existing...
SKU:
SPP6
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$15.05 USD
Combination electronic relay and start capacitor 1-5 HP application Two-wire connection Voltage sensing with instant restart
SKU:
SPP8E
Vendor:
Supco
Type:
Hard Start
Availability:
In-Stock
$50.94 USD
Combination relay, overload and start capacitor
Provides additional boost to compressor
Completely pre-wired and installs quickly and easily
SKU:
RCO210
Vendor:
Supco
Type:
Solid State Relay
Availability:
In-Stock
$32.41 USD
Shop Compressors at SupplyShop
Find compressors and compressor parts for commercial HVAC, refrigeration, plumbing, electrical, foodservice, and maintenance work. Browse options such as Direct Replacement Relay for Copeland, Hard Start, Potential Relays, Relays. Compare brands such as MARS, Supco, White-Rodgers, Embraco when a direct replacement or approved brand matters.
How to choose compressors and compressor parts
- Match the product page details to the equipment nameplate, project plan, or replacement part requirements.
- Compare dimensions, material, voltage, capacity, compatibility, and accessory requirements where they apply.
- Use product photos, manuals, model numbers, and SKU details to confirm the selection before checkout.
Before you order
Review availability, freight or parcel shipping needs, return eligibility, and installation requirements before checkout. If the job depends on exact fit, have the model number, measurements, photos, or replacement requirements ready before contacting SupplyShop.