SupcoRated 4.5 out of 5 from 4 reviews

Supco SPP6 Relay And Capacitor Hard Start Kit With 500% Increase Starting Torque For Air Conditioner And Refrigerator Compressors

Why you'll like it

  • Maximum Starting Power — Delivers a 500% increase in compressor starting torque to effortlessly revive struggling motors.
  • Universal Compatibility — Designed for single-phase air conditioner and heat pump systems ranging from 1/2 to 10 horsepower.
  • Wide Voltage Support — Operates reliably across 90 to 277 VAC electrical systems to handle severe low-voltage conditions.
  • Simplified Installation — Features an easy two-wire setup that integrates directly with existing run capacitors.

Product details

Description

The Supco SPP6 Hard Start Kit is engineered to provide a powerful 500% increase in starting torque for struggling single-phase air conditioning and refrigeration compressors. Designed with a combined Positive Temperature Coefficient relay and start capacitor, this unit helps aging or power-strained systems overcome severe low-voltage grid conditions.

It is ideal for residential and commercial permanent split capacitor compressors ranging from 1/2 to 10 horsepower, ensuring smoother operation and reducing wear during startup. Featuring a straightforward two-wire setup, the kit connects easily to existing run capacitors across a wide voltage range of 90 to 277 VAC.

Built for reliable performance, it helps prevent system stalls and protects compressors from frequent thermal overloads, ultimately extending the operational lifespan of your cooling equipment.

How to use

  1. Disconnect power to the air conditioning or refrigeration unit before installation.
  2. Mount the hard start kit securely near the compressor.
  3. Connect the two wires directly across the terminals of the existing run capacitor following standard wiring diagrams for single-phase PSC systems.
  4. Restore power and test the unit.

Ingredients

Positive Temperature Coefficient (PTC) relay component, heavy-duty start capacitor, heat-resistant housing enclosure, insulated copper lead wires.

As printed by the brand. Check the pack label if you have an allergy.

Specifications

BrandSupco
GTIN00687152197361
Ships fromUSA (sourced directly), checked in Navi Mumbai
Sold byDropy.in

Ratings & reviews

From our customers

4.54 reviews
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Write a reviewSupco SPP6 Relay And Capacitor Hard Start Kit With 500% Increase Starting Torque For Air Conditioner And Refrigerator Compressors
Filter reviews4 reviews

Top reviews first: highest rated, with photos first

  • Rajesh S.
    5 ★

    Fixed compressor starting issue

    My refrigerator compressor was struggling to turn on during peak afternoon hours because of low grid voltage in our colony. Installed this unit as recommended by our local technician, and it immediately solved the problem. It handles the single-phase setup nicely and prevents those annoying stalls. Very reliable kit for heavy appliances.

  • Siddharth D.
    5 ★

    ac start hogya properly

    hamare yaha voltage drop ka bahut issue hai aur AC ka compressor bar bar trip mar rha tha. ye hard start kit lagwane ke bad ab machine bina kisi load problem ke smooth start le rhi hai. good thing is it gives that 500% torque boost jo ki low voltage grid condition me compressor ko bachata hai. packing bhi achi thi aur delivery fast ho gyi thi.

  • Pooja K.
    4 ★

    fridge ab smooth chal rha hai

    hamara commercial fridge voltage fluctuation ki wajah se baar baar band pad jata tha. ye wala relay capacitor kit use kiya hai kuch weeks se aur kafi farak pada hai startup me. two-wire setup tha to jaldi connect ho gya tha. thoda aur durability pata chalegi long run me.

  • Vikram M.
    4 ★

    summer ke liye badiya hai

    ghar ka ac garmi me start hi nahi ho rha tha, compressor stuck lag rha tha. electrician ne ye combo lagane ko bola. abhi tak to theek chal rha hai, bina kisi thermal overload ke. bas instructions thoda complicated laga non-tech person ke liye, par kaam ho gya ??.

FAQs

What is the Supco SPP6 relay capacitor hard start kit?

The Supco SPP6 is an all-in-one relay and start capacitor designed for single-phase air conditioning and heat pump systems. It provides a 500% increase in starting torque to help struggling compressors start faster and run more efficiently.

What are the specifications of the SPP6 capacitor?

The SPP6 operates on a voltage range of 90 VAC to 277 VAC and supports compressor sizes from 1/2 horsepower up to 10 horsepower. It utilizes a combined PTC relay and start capacitor design with a simple two-wire connection setup.

What is the difference between the Supco SPP5 and SPP6 capacitors?

While both models are designed to boost compressor starting torque, the SPP6 is tailored to handle a broader range of horsepower and voltage specifications suited for heavier-duty residential and commercial applications compared to the SPP5.

Are the Supco products on Dropy India authentic USA imports?

Yes, every product available on Dropy India is an authentic USA import sourced directly from trusted American suppliers to ensure genuine quality and performance.

What causes an air conditioner compressor to click and trip the breaker?

Clicking sounds and tripped breakers usually indicate that the compressor is struggling to overcome high head pressure or low-voltage power conditions during startup. Installing a hard start kit like the SPP6 provides the necessary torque boost to resolve this issue.

How long will delivery take?

Most orders arrive in 15–20 days: we source each product directly from the USA, check it at our Navi Mumbai warehouse and pack it on video. Items marked Dropy Express ship from our India warehouse and arrive in 3–5 days.

Is cash on delivery available?

Full cash on delivery is available all over India on Dropy Express items. For other orders from ₹2,499 to ₹15,000 you can use Partial COD: pay 25% online now and the rest in cash on delivery.

Are your products genuine?

Yes. Every product is 100% authentic, sourced directly from the USA, quality-checked and packed on video at our Navi Mumbai warehouse.

What if my order arrives damaged or wrong?

Write to us at [email protected] as soon as it arrives. Damaged, wrong or not as described, our Buyer Protection gives you a full refund. The details are in our Return, Refund & Cancellation Policy.

Is delivery free?

Delivery is free on orders from ₹1,499. Below that a ₹79 delivery fee applies.