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Supco Relay RO22 - HVAC Equipment
SupcoHVAC Equipment

Supco Relay RO22

Supco Relay RO22 is a refrigeration relay for HVAC equipment, rated 115/230 VAC and 1/12–1/2 hp, designed for compressor motor control in cooling and refrigeration systems.

SKU 3G-CBM-01263

Also listed as: COP 02008 · COP-02008

Brand
Supco
Item
Relay RO22
Category
HVAC Equipment
UNSPSC
40101709 — Air handling unit
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Supco
type
Refrigeration Relay
series
ICG/PO
voltage
115/230 VAC
hp rating
1/12 - 1/2

Datasheet Content

Refrigeration Relays, Overloads & Hard Starts For Refrigeration Systems Without Run Capacitors SUPCO offers the most complete line of refrigeration relays, overloads and hard starts in the industry. For refrigeration systems with and without run capacitors, just choose the right combination for your application. All combinations are pre-wired for fast installation. ® ICG and PO Series Relays Selection Table For Refrigeration Systems Features/Benefits Without Run Capacitors • ICG Series features a “snap-on” bracket • PO Series installs on compressors with PART START VOLTAGE “pin-type” terminals. NO. RELAY OVERLOAD CAPACITOR MOUNTING hp RATING (VAC) • Fastest cool down time of any solid state ICG1 * Quick Connect 1/12 - 1/2 115 relays ICG-220 * Quick Connect 1/12 - 1/2 230 ICG • Can be used with and without start PO115 * Push - on 1/12 - 1/2 115 capacitor. PO230 * Push - on 1/12 - 1/2 230 Applications RO81 * * Quick Connect 1/12 - 1/5 115 • One size for all compressors RO41 * * Quick Connect 1/4 - 1/3 115 from 1/12 hp through 1/2 hp. RO82 * * Quick Connect 1/12 - 1/8 230 ® • Replaces all current type relays. RO62 * * Quick Connect 1/6 - 1/5 230 RO42 * * Quick Connect 1/4 - 1/3 230 RO & PRO Series Relay PRO81 * * Push - on 1/12 - 1/5 115 and Overload Combinations Features/Benefits PRO41 * * Push - on 1/4 - 1/3 115 • RO Series features “snap-on” bracket PRO21 * * Push - on 1/2 115 RO • PRO Series installs on “pin-type” terminal. PRO82 * * Push - on 1/12 - 1/8 230 • Locked rotor protection eliminates start wind- PRO62 * * Push - on 1/6 - 1/5 230 ing overheating PRO42 * * Push - on 1/4 - 1/3 230 • Can be used with and without start capacitor PRO22 * * Push - on 1/2 - 2/3 230 motors from 1/4 to 1/3 hp. ® RSC20 * * Quick Connect 1/12 - 1/2 230 RCO810 * * * Quick Connect 1/12 - 1/5 115 Applications RCO410 * * * Quick Connect 1/4 - 1/3 115 • Select the right match to replace refrigera- RCO210 * * * Quick Connect 1/2 115 RSC tor compressor relay and overload units RCO820 * * * Quick Connect 1/12 - 1/8 230 from 1/12 through 1/2 hp, 115 – 230 VAC. RCO620 * * * Quick Connect 1/6 - 1/5 230 RCO420 * * * Quick Connect 1/4 - 1/3 230 RSC Series Relay and Start RCO220 * * * Quick Connect 1/2 230 Capacitor Combination SS410 * * * Quick Connect 1/4 -1/3 115 Features/ Benefits ® • Replaces current-type relays • Provides a boost for hard start and unbalanced systems RCO/URCO/PRO/URPO/RO/URO Current Ratings • Prevents low voltage starting prob- FULL TRIP IN lems PART LOAD CURRENT AFTER NO. AMPS 6-16 SEC. RCO Applications • One size for all compressors from 1/12 hp RCO810/URCO810/PRO81/URPO81/RO81/URO81 4.05Amps 12 Amps through 1/2 hp. RCO410/URCO410/PRO41/URPO41/RO41/URO41 7.5 Amps 22 Amps • For domestic and commercial refrigeration RCO210/URCO210 13.3 Amps 40 Amps systems and freezers RCO820/URCO82/PRO82/URPO82/RO82/URO82 1.66 Amps 6 Amps RCO420/URCO42/PRO42/URPO42/RO42/URO42 4.05 Amps 12 Amps RCO620/URCO62/PRO62/URPO62/RO62/URO62 1.66 Amps 6 Amps RCO Series 3 N’ 1 Relay, RCO220/PRO22/UPRO22/URO22 7.5 Amps 22 Amps Overload and Start Capacitor Combination Features/Benefits Applications • Replaces relay, overload and provides a • Select the right match to replace refrigerator boost for hard start and unbalanced systems compressor relay and overload units from 1/12 SS410 • Prevents low voltage starting problems through 1/2 hp, 115 – 230 VAC. • For all capillary systems SS410 Super Start Relay Overload Combination Features/Benefits Applications • Equipped with an electro-mechanical relay, locked • For all motors including high starting torque rotor protector and a 255 µF start capacitor. motors from 1/4 to 1/3 hp. 58 • Increases torque to its maximum capacity 58 Features/Benefits

Technical Documents

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Supco Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

Supco Relay RO22 is a refrigeration relay for HVAC equipment, rated 115/230 VAC and 1/12–1/2 hp, designed for compressor motor control in cooling and refrigeration systems.

Frequently Asked Questions

What is the Supco Relay RO22 used for?

The Supco Relay RO22 is a refrigeration relay used for compressor motor control in HVAC equipment. It is designed for refrigeration systems without run capacitors, providing locked rotor protection to prevent start winding overheating. It replaces current-type relays in compressors from 1/12 to 1/2 hp.

What are the specifications of the Supco Relay RO22?

The Supco Relay RO22 is a refrigeration relay rated for 115/230 VAC and 1/12 to 1/2 hp. It features a push-on mounting for compressors with pin-type terminals and can be used with or without a start capacitor. It is part of the RO series and includes overload protection.

Where to buy the Supco Relay RO22 in Singapore?

You can source the Supco Relay RO22 from 3G Electric in Singapore. We supply genuine HVAC components and handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this refrigeration relay.

How to install the Supco Relay RO22?

To install the Supco Relay RO22, first disconnect power to the compressor. The relay uses a push-on mounting for pin-type terminals—align it with the compressor pins and press firmly. Ensure the voltage and hp rating match your system. Always follow standard HVAC safety procedures and consult the manufacturer datasheet.

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 hvac equipment. 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
Relay RO82
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Relay RO82
RO42 relay
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RO42 relay
Relay RO62
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Relay RO62
RCO820 1/12 relay
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RCO820 1/12 relay
Relay RCO220 1/2
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Relay RCO220 1/2
Relay RCO620 1/6
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Relay RCO620 1/6

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