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5-2-1 COMPRESSOR SAVER Compressor Saver: 3 Wire, 88-108 MFD, 208 to 240V AC, 4 hp to 5 hp - Hard Start Kits
5-2-1 COMPRESSOR SAVERHard Start Kits

5-2-1 COMPRESSOR SAVER Compressor Saver: 3 Wire, 88-108 MFD, 208 to 240V AC, 4 hp to 5 hp

The 5-2-1 COMPRESSOR SAVER is a 3 Wire hard start kit designed for reciprocating compressors. It operates at 208 to 240V AC and supports cooling capacities from 1 to 3 ton. The kit provides 88-108 MFD capacitance and…

SKU 3G-OTH-67733

Also listed as: CSRU 1 · CSRU-1

Brand
5-2-1 COMPRESSOR SAVER
Item
Compressor Saver: 3 Wire, 88-108 MFD, 208 to 240V AC, 4 hp to 5 hp
Category
Hard Start Kits
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

5-2-1 COMPRESSOR SAVER
Manufacturer Part Number
CSRU1
Type
4 hp to 5 hp, Instant Restart
AC
208 to 240V
MFD
88-108
Control Voltage
208 to 240V AC
For Compressor Type
Reciprocating
For Cooling Capacity Range
1 to 3 ton

Technical Documents

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5-2-1 COMPRESSOR SAVER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The 5-2-1 COMPRESSOR SAVER is a 3 Wire hard start kit designed for reciprocating compressors. It operates at 208 to 240V AC and supports cooling capacities from 1 to 3 ton. The kit provides 88-108 MFD capacitance and instant restart capability, suitable for 4 hp to 5 hp compressors (MPN CSRU1).

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the 5-2-1 Compressor Saver CSRU1 used for?

The 5-2-1 Compressor Saver CSRU1 is a hard start kit used to provide extra starting torque for reciprocating compressors in HVAC systems. It is designed for 4 hp to 5 hp compressors with cooling capacities from 1 to 3 ton, helping prevent hard starting and short cycling.

What are the specifications of the 5-2-1 Compressor Saver CSRU1?

The 5-2-1 Compressor Saver CSRU1 is a 3-wire hard start kit with 88-108 MFD capacitance. It operates at 208 to 240V AC control voltage and supports reciprocating compressors from 4 hp to 5 hp. The kit provides instant restart capability for 1 to 3 ton cooling systems.

Where to buy the 5-2-1 Compressor Saver CSRU1 worldwide?

You can source the 5-2-1 Compressor Saver CSRU1 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this hard start kit.

How to install the 5-2-1 Compressor Saver CSRU1?

Install the 5-2-1 Compressor Saver CSRU1 by connecting the three wires to the compressor terminals: common, start, and run. Ensure power is off before installation. Follow the manufacturer's wiring diagram for your specific reciprocating compressor model. Always discharge the capacitor before handling.

Used in

Common applications for 5-2-1 COMPRESSOR SAVER
Residential air conditioning — 5-2-1 COMPRESSOR SAVER CSRU1 hard start kit for 1-3 ton reciprocating compressors
Light commercial HVAC — 5-2-1 COMPRESSOR SAVER CSRU2 hard start kit for 3.5-5 ton reciprocating compressors
Heat pump systems — 5-2-1 COMPRESSOR SAVER CSRU3 hard start kit for 4-5 ton reciprocating compressors
HVAC surge protection — 5-2-1 COMPRESSOR SAVER TPSPD external-mount SPD for single-phase 120/240V AC equipment
Refrigeration compressor startup — 5-2-1 COMPRESSOR SAVER CSRU series for reducing start-up stress in reciprocating compressors

5-2-1 COMPRESSOR SAVER Products

3G Electric supplies 5-2-1 COMPRESSOR SAVER 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
Hard Start Kit: 3 Wire, 270-324 MFD, 208 to 277V AC, 4 hp to 5 hp, Mechanical Potential Relay (MPN 3W3)
Supco
Hard Start Kit: 3 Wire, 270-324 MFD, 208 to 277V AC, 4 hp to 5 hp, Mechanical Potential Relay (MPN 3W3)
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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)
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Supco
Hard Start Kit: 3 Wire, 88-108 MFD, 208 to 277V AC, 1 hp to 3 hp, Mechanical Potential Relay (MPN 3W1)
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Supco
Hard Start Kit: 2 Wire, 43-53 MFD, 90-277V AC, 1/2 hp to 10 hp, Positive Temp Coefficient Relay (MPN SPP5)
Hard Start Kit: 2 Wire, 130-156 MFD, 90-277V AC, 1 1/2 hp to 10 hp, Positive Temp Coefficient Relay (MPN SPP7S)
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)
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)
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)

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Compressor Saver: 3 Wire, 189-227 MFD, 208 to 240V AC, 3 1/2 hp to 5 hp, Instant Restart (MPN CSRU2)
5-2-1 COMPRESSOR SAVER
Compressor Saver: 3 Wire, 189-227 MFD, 208 to 240V AC, 3 1/2 hp to 5 hp, Instant Restart (MPN CSRU2)
Compressor Saver: 3 Wire, 270-324 MFD, 208 to 240V AC, 4 hp to 5 hp, Instant Restart (MPN CSRU3)
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)