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SupcoFixed-Potential Relay

Supco Potential Relay: 180V AC to 195V AC Pick Up, 105V AC Drop Out, Fixed

The Supco 304X05 is a fixed-potential relay with a pickup voltage range of 180V AC to 195V AC and a maximum drop out voltage of 105V AC. It features a 338V AC coil voltage and an SPST contact form. This relay is…

SKU 3G-OTH-68616

Brand
Supco
Item
Potential Relay: 180V AC to 195V AC Pick Up, 105V AC Drop Out, Fixed
Category
Fixed-Potential Relay
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Technical Specifications

Supco
Manufacturer Part Number
9069
Coil Voltage
338V AC
Contact Form
SPST
Maximum Drop Out Voltage
105V AC
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Supco Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Supco 304X05 is a fixed-potential relay with a pickup voltage range of 180V AC to 195V AC and a maximum drop out voltage of 105V AC. It features a 338V AC coil voltage and an SPST contact form. This relay is manufactured under part number 9069.

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 Supco 304X05 potential relay used for?

The Supco 304X05 fixed-potential relay is used in HVAC and refrigeration systems to start single-phase compressor motors. It disconnects the start capacitor once the motor reaches a preset voltage, preventing overheating and extending component life.

What are the specifications of the Supco 304X05 potential relay?

The Supco 304X05 has a pickup voltage range of 180V AC to 195V AC, a maximum drop out voltage of 105V AC, and a coil voltage of 338V AC. It features an SPST contact form and is manufactured under part number 9069.

Where to buy the Supco 304X05 potential relay worldwide?

3G Electric supplies the Supco 304X05 potential relay worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the Supco 304X05 potential relay?

To install the Supco 304X05, first disconnect power. Mount the relay securely, then wire the coil terminals in series with the compressor start winding and the normally closed contacts in series with the start capacitor. Verify pickup and drop out voltages match your system.

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 fixed-potential relay. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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