Compressor Manufacturer,Supplier and Exporter in India
Product Code : EL-RACLE-12827
Jlab Export is a leading Compressor Manufacturer,and suppliers in India
This half-horsepower refrigeration compressor is made for domestic systems that run on R-134a. A PTC starting relay brings its motor up to speed. RAC instructors keep it beside the smaller sizes so that learners can compare motor ratings, terminal readings and running current on one test bench.
Specifications
| Application | Domestic refrigeration |
| Motor rating | 1/2 HP |
| Refrigerant | R-134a |
| Starting relay | PTC |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Practicals on the Compressor Test Bench
Trainees mark the common, start and run pins from three resistance readings, then connect the compressor to its PTC relay on the bench. With the motor running, they clamp a Digital Clamp Meter around one supply lead and log the running current. Doing the same on a 1/3 HP unit shows how current rises with motor rating.
The compressor can then go into a practice circuit on a trainer frame. The class pulls a vacuum with a two-stage pump such as the Fast Vacuum Pumps model and charges R-134a. Suction and discharge pressures are read on Manifold Gauges For Refrigeration Systems, whose scale includes R-134a.
Frequently Asked Questions
When should I choose the 1/2 HP size over a 1/3 HP one?
Replace like with like. Read the old compressor’s label and match both the refrigerant, R-134a, and the motor rating. A larger motor than the circuit was built for upsets the balance with its capillary tube and condenser. The 1/3 HP Compressor covers the next size down.
How do I check the windings before fitting?
Read the resistance between each pair of pins. A zero reading points to a shorted winding and no reading to a broken one. Then test from each pin to the shell with an insulation tester. A low reading there means the winding leaks to earth, so the compressor must not be powered.
Why does the compressor click and stop just after a restart?
A PTC relay that is still hot from the last start cannot feed the start winding. The motor stalls, and the overload trips with a click. Wait a few minutes for the relay to cool before switching on again, and check the supply voltage if the fault returns.
How can I tell a seized compressor from a start fault?
A seized compressor hums, draws a high current and trips the overload every time, even with a new relay, the right voltage and sound windings. If a known good relay and overload do not get it running, the motor or pump is locked and the compressor must be replaced.
Spares Used with Domestic Compressors
- Compressor Start Relay (Solid State Relay)
- Compressor Start Relay
- Copper Pipe (6 mm and 8 mm rolls)
- Filter Drier
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Last updated: 5 November 2026
