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Supco Hard Start Kit: 3 Wire, 270-324 MFD, 208 to 277V AC, 4 hp to 5 hp - Hard Start Kits
SupcoHard Start Kits

Supco Hard Start Kit: 3 Wire, 270-324 MFD, 208 to 277V AC, 4 hp to 5 hp

The SUPCO Hard Start Kit: 3 Wire (MPN 3W3) is a hard start kit for reciprocating compressors with a cooling capacity range of 4 to 5 ton. It features a control voltage of 208 to 277V AC and a capacitance of 270-324…

SKU 3G-OTH-67892

Brand
Supco
Item
Hard Start Kit: 3 Wire, 270-324 MFD, 208 to 277V AC, 4 hp to 5 hp
Category
Hard Start Kits
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Technical Specifications

Supco
Manufacturer Part Number
3W3
Type
4 hp to 5 hp, Mechanical Potential Relay
AC
208 to 277V
MFD
270-324
Control Voltage
208 to 277V AC
For Compressor Type
Reciprocating
For Cooling Capacity Range
4 to 5 ton
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Supco Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SUPCO Hard Start Kit: 3 Wire (MPN 3W3) is a hard start kit for reciprocating compressors with a cooling capacity range of 4 to 5 ton. It features a control voltage of 208 to 277V AC and a capacitance of 270-324 MFD, suitable for 4 hp to 5 hp applications. This kit includes a mechanical potential relay.

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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