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SupcoGeneral-Purpose Relays

Supco Multi Voltage Relay: 1 Relay, SPDT, Normally Closed/Normally Open

The Supco Multi Voltage Relay: 1 Relay (SKU 304V46, MPN PR-1) is a general-purpose relay with a single-pole double-throw (SPDT) contact form. It features a coil rated for 120V AC or 18 to 35V AC/DC, and supports both…

SKU 3G-OTH-68638

Brand
Supco
Item
Multi Voltage Relay: 1 Relay, SPDT, Normally Closed/Normally Open
Category
General-Purpose Relays
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Technical Specifications

Supco
Manufacturer Part Number
PR-1
Type
SPDT, Normally Closed/Normally Open, 120V AC/18 to 35V AC/DC Coil
Contact Form
SPDT
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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Supco Multi Voltage Relay: 1 Relay (SKU 304V46, MPN PR-1) is a general-purpose relay with a single-pole double-throw (SPDT) contact form. It features a coil rated for 120V AC or 18 to 35V AC/DC, and supports both normally closed and normally open configurations.

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 PR-1 multi voltage relay used for?

The Supco PR-1 multi voltage relay is a general-purpose SPDT relay used in HVAC, refrigeration, and industrial control circuits. It switches loads in normally closed or normally open configurations, making it suitable for compressor control, fan cycling, and safety interlocks where reliable switching at multiple coil voltages is required.

What are the specifications of the Supco PR-1 relay?

The Supco PR-1 relay has an SPDT contact form with normally closed and normally open options. Its coil accepts 120V AC or 18 to 35V AC/DC. The manufacturer part number is PR-1. This multi-voltage capability allows flexible integration into systems with different control voltages without needing separate relay models.

Where to buy the Supco PR-1 relay worldwide?

You can source the Supco PR-1 relay 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; we provide competitive pricing and reliable supply for this Supco general-purpose relay.

How to select the Supco PR-1 relay for an application?

To select the Supco PR-1 relay, verify your control circuit voltage matches its coil rating: 120V AC or 18 to 35V AC/DC. Ensure the load current and voltage are within the SPDT contact ratings. Use the normally closed or normally open configuration as required by your circuit design. Consult the Supco datasheet for exact electrical ratings.

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 general-purpose relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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