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JOHNSON CONTROLS Class 2 Transformer: 40 VA Power Rating, 120V AC, 24V AC, Plate - Open Class 2 Transformers
JOHNSON CONTROLSOpen Class 2 Transformers

JOHNSON CONTROLS Class 2 Transformer: 40 VA Power Rating, 120V AC, 24V AC, Plate

The JOHNSON CONTROLS Class 2 Transformer is an open Class 2 transformer with a 40 VA power rating. It features a plate mounting, 120V AC input voltage, and 24V AC output voltage, with a wire lead primary connection…

SKU 3G-OTH-49336

Also listed as: Y65A210 · Y65A21 0

Brand
JOHNSON CONTROLS
Item
Class 2 Transformer: 40 VA Power Rating, 120V AC, 24V AC, Plate
Category
Open Class 2 Transformers
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

JOHNSON CONTROLS
Manufacturer Part Number
Y65A21-0
Type
Plate, Wire Lead
AC
120V
Mounting
Plate
Input Voltage
120V AC
Output Voltage
24V AC
Connection - Primary
Wire Lead
Connection - Secondary
Screw Terminal

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

Product Description

The JOHNSON CONTROLS Class 2 Transformer is an open Class 2 transformer with a 40 VA power rating. It features a plate mounting, 120V AC input voltage, and 24V AC output voltage, with a wire lead primary connection and screw terminal secondary connection (MPN Y65A21-0).

Frequently Asked Questions

What is the JOHNSON CONTROLS Class 2 Transformer used for?

This open Class 2 transformer steps down 120V AC input to 24V AC output for powering HVAC controls, relays, and low-voltage devices. It is commonly used in commercial building automation and industrial control panels where a reliable 40 VA power supply is required.

What are the specifications of the JOHNSON CONTROLS Y65A21-0 transformer?

The JOHNSON CONTROLS Y65A21-0 is a 40 VA open Class 2 transformer with 120V AC input and 24V AC output. It features plate mounting, a wire lead primary connection, and screw terminal secondary connection. The manufacturer part number is Y65A21-0.

Where to buy JOHNSON CONTROLS transformers in worldwide?

3G Electric supplies JOHNSON CONTROLS transformers like the Y65A21-0 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this 40 VA, 120V AC to 24V AC transformer.

How to install a JOHNSON CONTROLS plate-mount transformer?

Mount the transformer securely to a flat surface using the plate. Connect the 120V AC supply to the wire lead primary. Connect the 24V AC secondary to your load using the screw terminals. Ensure the total VA draw does not exceed 40 VA and follow local electrical codes.

Used in

Common applications for JOHNSON CONTROLS
Industrial refrigeration — Johnson Controls P170SA-1C dual pressure control for compressor protection in ammonia or halocarbon systems
Chiller plant automation — Johnson Controls VA7810-HGA-2 electric globe valve actuator for modulating chilled water flow in VG7000 series valves
Pneumatic HVAC retrofit — Johnson Controls T-4002-302 conversion kit for upgrading existing Robertshaw thermostats in commercial buildings
Cooling tower water management — Johnson Controls V-4332-1007 pneumatically actuated diaphragm valve for 3-way diverting of water flow
Boiler fuel oil pressure monitoring — Johnson Controls P545NCB-25C electronic lube oil pressure control with alarm for burner management systems
Process pressure sensing — Johnson Controls P599AAPS105C pressure transmitter with IP67 rating for washdown zones in food and beverage plants

JOHNSON CONTROLS Products

3G Electric supplies JOHNSON CONTROLS open class 2 transformers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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