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SUPCO Hard Start Kit: 2 Wire - Hard Start Kits
SUPCOHard Start Kits

SUPCO Hard Start Kit: 2 Wire

SKU 3G-OTH-67766

Brand
SUPCO
Item
Hard Start Kit: 2 Wire
Category
Hard Start Kits
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Technical specs
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Technical Specifications

SUPCO
Brand
SUPCO
Control Voltage
90-277V AC
For Compressor Type
Permanent Split Capacitor
Manufacturer Part Number
SPP6
For Cooling Capacity Range
1/2 to 5 ton
View Full Spec Sheet

Technical Documents

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SUPCO Products
3G Electric (S) Pte. Ltd. — Singapore

Used in

Common applications for SUPCO
Commercial refrigeration display cases — Supco RO82 relay and CSS-25U starter for compressor motor control without run capacitors
Medium-load HVAC systems — Supco SPP 6/SPP 8 hard-start devices to reduce compressor inrush current and extend motor lifespan
Cold-chain pharmaceutical and food storage — SL300TH temperature–humidity data logger for continuous monitoring and regulatory documentation
Refrigerant service operations — Piercing valves and perforator cocks in 1/2" and 5/8" sizes for fast, non-invasive line access
Compressor thermal management — Universal Compressor Door for reducing shell temperature and improving efficiency in hot ambient conditions
Retrofit and field repairs — Supco controls with Quick Connect terminals for rapid installation in legacy refrigeration circuits

SUPCO Products

3G Electric supplies SUPCO hard start kits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Hard Start Kit: 3 Wire, 270-324 MFD, 208 to 277V AC, 4 hp to 5 hp, Mechanical Potential Relay (MPN 3W3). Key specifications — For Compressor Type: Reciprocating; Manufacturer Part Number: 3W3; Brand: SUPCO; For Cooling Capacity Range: 4 to 5 ton; Control Voltage: 208 to 277V AC.
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Hard Start Kit: 3 Wire, 270-324 MFD, 208 to 277V AC, 4 hp to 5 hp, Mechanical Potential Relay (MPN 3W3). Key specifications — For Compressor Type: Reciprocating; Manufacturer Part Number: 3W3; Brand: SUPCO; For Cooling Capacity Range: 4 to 5 ton; Control Voltage: 208 to 277V AC.
Hard Start: 2 Wire, 88-108 MFD, 208 to 277V AC, 1/2 hp to 3 hp, Electronic Potential Relay (MPN SPP6E). Key specifications — For Compressor Type: Permanent Split Capacitor; Manufacturer Part Number: SPP6E; Brand: SUPCO; For Cooling Capacity Range: 1/2 to 3 ton; Control Voltage: 208 to 277V AC.
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Hard Start: 2 Wire, 88-108 MFD, 208 to 277V AC, 1/2 hp to 3 hp, Electronic Potential Relay (MPN SPP6E). Key specifications — For Compressor Type: Permanent Split Capacitor; Manufacturer Part Number: SPP6E; Brand: SUPCO; For Cooling Capacity Range: 1/2 to 3 ton; Control Voltage: 208 to 277V AC.
Hard Start Kit: 3 Wire, 145-175 MFD, 115V AC, 1/12 hp to 1/5 hp, Positive Temp Coefficient Relay (MPN RCO810). Key specifications — For Compressor Type: Capacitor-Start Induction-Run; Manufacturer Part Number: RCO810; Brand: SUPCO; Control Voltage: 115V AC.
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Hard Start Kit: 3 Wire, 145-175 MFD, 115V AC, 1/12 hp to 1/5 hp, Positive Temp Coefficient Relay (MPN RCO810). Key specifications — For Compressor Type: Capacitor-Start Induction-Run; Manufacturer Part Number: RCO810; Brand: SUPCO; Control Voltage: 115V AC.
Hard Start Kit: 2 Wire, 43-53 MFD, 90-277V AC, 1/2 hp to 10 hp, Positive Temp Coefficient Relay (MPN SPP5). Key specifications — For Compressor Type: Reciprocating; Manufacturer Part Number: SPP5; Brand: SUPCO; For Cooling Capacity Range: 1/2 to 5 ton; Control Voltage: 90-277V AC.
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Hard Start Kit: 2 Wire, 43-53 MFD, 90-277V AC, 1/2 hp to 10 hp, Positive Temp Coefficient Relay (MPN SPP5). Key specifications — For Compressor Type: Reciprocating; Manufacturer Part Number: SPP5; Brand: SUPCO; For Cooling Capacity Range: 1/2 to 5 ton; Control Voltage: 90-277V AC.
Hard Start Kit: 3 Wire, 189-227 MFD, 208 to 277V AC, 3 1/2 hp to 5 hp, Mechanical Potential Relay (MPN 3W2). Key specifications — For Compressor Type: Scroll; Manufacturer Part Number: 3W2; Brand: SUPCO; For Cooling Capacity Range: 3-1/2 to 5 ton; Control Voltage: 208 to 277V AC.
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Hard Start Kit: 3 Wire, 189-227 MFD, 208 to 277V AC, 3 1/2 hp to 5 hp, Mechanical Potential Relay (MPN 3W2). Key specifications — For Compressor Type: Scroll; Manufacturer Part Number: 3W2; Brand: SUPCO; For Cooling Capacity Range: 3-1/2 to 5 ton; Control Voltage: 208 to 277V AC.
Hard Start: 2 Wire, 270-324 MFD, 208 to 277V AC, 3 1/2 hp to 5 hp, Mechanical Potential Relay (MPN MPR1). Key specifications — For Compressor Type: Scroll; Manufacturer Part Number: MPR1; Brand: SUPCO; For Cooling Capacity Range: 3-1/2 to 5 ton; Control Voltage: 208 to 277V AC.
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Hard Start: 2 Wire, 270-324 MFD, 208 to 277V AC, 3 1/2 hp to 5 hp, Mechanical Potential Relay (MPN MPR1). Key specifications — For Compressor Type: Scroll; Manufacturer Part Number: MPR1; Brand: SUPCO; For Cooling Capacity Range: 3-1/2 to 5 ton; Control Voltage: 208 to 277V AC.
Hard Start Kit: 3 Wire, 88-108 MFD, 208 to 277V AC, 1 hp to 3 hp, Mechanical Potential Relay (MPN 3W1). Key specifications — For Compressor Type: Scroll; Manufacturer Part Number: 3W1; Brand: SUPCO; For Cooling Capacity Range: 1 to 3 ton; Control Voltage: 208 to 277V AC.
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Hard Start Kit: 3 Wire, 88-108 MFD, 208 to 277V AC, 1 hp to 3 hp, Mechanical Potential Relay (MPN 3W1). Key specifications — For Compressor Type: Scroll; Manufacturer Part Number: 3W1; Brand: SUPCO; For Cooling Capacity Range: 1 to 3 ton; Control Voltage: 208 to 277V AC.
Hard Start Kit: 2 Wire, 130-156 MFD, 90-277V AC, 1 1/2 hp to 10 hp, Positive Temp Coefficient Relay (MPN SPP7S). Key specifications — For Compressor Type: Scroll; Manufacturer Part Number: SPP7S; Brand: SUPCO; For Cooling Capacity Range: 1/2 to 5 ton; Control Voltage: 90-277V AC.
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Hard Start Kit: 2 Wire, 130-156 MFD, 90-277V AC, 1 1/2 hp to 10 hp, Positive Temp Coefficient Relay (MPN SPP7S). Key specifications — For Compressor Type: Scroll; Manufacturer Part Number: SPP7S; Brand: SUPCO; For Cooling Capacity Range: 1/2 to 5 ton; Control Voltage: 90-277V AC.