Same-day dispatch across Singapore on in-stock parts — plus worldwide shipping to 80+ countries

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
Supco Hard Start Kit: 2 Wire - Hard Start Kits
SupcoHard Start Kits

Supco Hard Start Kit: 2 Wire

The Supco Hard Start Kit: 2 Wire (SKU 4E240, MPN SPP6) is a hard start kit designed for Permanent Split Capacitor compressors. It operates with a control voltage of 90-277V AC and is rated for cooling capacities from…

SKU 3G-OTH-67766

Brand
Supco
Item
Hard Start Kit: 2 Wire
Category
Hard Start Kits
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The Supco Hard Start Kit: 2 Wire (SKU 4E240, MPN SPP6) is a hard start kit designed for Permanent Split Capacitor compressors. It operates with a control voltage of 90-277V AC and is rated for cooling capacities from 1/2 to 5 ton. The kit includes a Positive Temp Coefficient Relay and provides 130-156 MFD, supporting compressor sizes from 1/2 hp to 10 hp.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
Hard Start Kit: 3 Wire, 243-292 MFD, 115V AC, 1/4 hp to 1/3 hp, Positive Temp Coefficient Relay (MPN RCO410). Key specifications — For Compressor Type: Capacitor-Start Induction-Run; Manufacturer Part Number: RCO410; Brand: SUPCO; Control Voltage: 115V AC.
Supco
Hard Start Kit: 3 Wire, 243-292 MFD, 115V AC, 1/4 hp to 1/3 hp, Positive Temp Coefficient Relay (MPN RCO410). Key specifications — For Compressor Type: Capacitor-Start Induction-Run; Manufacturer Part Number: RCO410; Brand: SUPCO; Control Voltage: 115V AC.
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.
Supco
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, 189-227 MFD, 208 to 277V AC, 1 hp to 3 hp, For 1 to 3 ton Cooling Capacity Range (MPN MPR5). Key specifications — For Compressor Type: Scroll; Manufacturer Part Number: MPR5; Brand: SUPCO; For Cooling Capacity Range: 1 to 3 ton; Control Voltage: 208 to 277V AC.
Supco
Hard Start: 2 Wire, 189-227 MFD, 208 to 277V AC, 1 hp to 3 hp, For 1 to 3 ton Cooling Capacity Range (MPN MPR5). Key specifications — For Compressor Type: Scroll; Manufacturer Part Number: MPR5; Brand: SUPCO; For Cooling Capacity Range: 1 to 3 ton; Control Voltage: 208 to 277V AC.
Compressor Saver: 3 Wire, 88-108 MFD, 208 to 240V AC, 4 hp to 5 hp, Instant Restart (MPN CSRU1). Key specifications — For Compressor Type: Reciprocating; Manufacturer Part Number: CSRU1; Brand: 5-2-1 COMPRESSOR SAVER; For Cooling Capacity Range: 1 to 3 ton; Control Voltage: 208 to 240V AC.
5-2-1 COMPRESSOR SAVER
Compressor Saver: 3 Wire, 88-108 MFD, 208 to 240V AC, 4 hp to 5 hp, Instant Restart (MPN CSRU1). Key specifications — For Compressor Type: Reciprocating; Manufacturer Part Number: CSRU1; Brand: 5-2-1 COMPRESSOR SAVER; For Cooling Capacity Range: 1 to 3 ton; Control Voltage: 208 to 240V AC.
Compressor Saver: 3 Wire, 270-324 MFD, 208 to 240V AC, 4 hp to 5 hp, Instant Restart (MPN CSRU3). Key specifications — For Compressor Type: Reciprocating; Manufacturer Part Number: CSRU3; Brand: 5-2-1 COMPRESSOR SAVER; For Cooling Capacity Range: 4 to 5 ton; Control Voltage: 208 to 240V AC.
5-2-1 COMPRESSOR SAVER
Compressor Saver: 3 Wire, 270-324 MFD, 208 to 240V AC, 4 hp to 5 hp, Instant Restart (MPN CSRU3). Key specifications — For Compressor Type: Reciprocating; Manufacturer Part Number: CSRU3; Brand: 5-2-1 COMPRESSOR SAVER; For Cooling Capacity Range: 4 to 5 ton; Control Voltage: 208 to 240V AC.
SUPCO Start Capacitor,CS270324X220: Start Capacitor, CS270-324X220. Key specifications — Manufacturer Part Number: CS270-324X220; Product Type: Start Capacitor.
Supco
SUPCO Start Capacitor,CS270324X220: Start Capacitor, CS270-324X220. Key specifications — Manufacturer Part Number: CS270-324X220; Product Type: Start Capacitor.

More from Supco

View all Supco parts →
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.
Supco
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: 5 Wire, 243-292 MFD, 115V AC, 1/3 hp to 1/2 hp, Mechanical Potential Relay (MPN RCO210). Key specifications — For Compressor Type: Capacitor-Start Induction-Run; Manufacturer Part Number: RCO210; Brand: SUPCO; For Cooling Capacity Range: 1/3 to 1/2 ton; Control Voltage: 115V AC.
Supco
Hard Start: 5 Wire, 243-292 MFD, 115V AC, 1/3 hp to 1/2 hp, Mechanical Potential Relay (MPN RCO210). Key specifications — For Compressor Type: Capacitor-Start Induction-Run; Manufacturer Part Number: RCO210; Brand: SUPCO; For Cooling Capacity Range: 1/3 to 1/2 ton; Control Voltage: 115V 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.
Supco
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.
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.
Supco
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: 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.
Supco
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, 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.
Supco
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, 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.
Supco
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.
Supco
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.