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Robertshaw Class 2 Transformer: 50 VA Power Rating, 120V AC/208V AC/240V AC, 24V AC - Open Class 2 Transformers
RobertshawOpen Class 2 Transformers

Robertshaw Class 2 Transformer: 50 VA Power Rating, 120V AC/208V AC/240V AC, 24V AC

The ROBERTSHAW Class 2 Transformer (SKU 6JZX7, MPN 620-502) is an open Class 2 transformer with a 50 VA power rating. It features a foot mounting, a 240V AC primary input, and a 24V AC secondary output, with wire…

SKU 3G-OTH-48367

Brand
Robertshaw
Item
Class 2 Transformer: 50 VA Power Rating, 120V AC/208V AC/240V AC, 24V AC
Category
Open Class 2 Transformers
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Technical Specifications

Robertshaw
Manufacturer Part Number
620-502
Type
Primary Fuse
AC
24V
Mounting
Foot
Input Voltage
240V AC
Output Voltage
24V AC
AC/208V AC/240V AC
120V
Connection - Primary
Wire Lead
Connection - Secondary
Wire Lead
View Full Spec Sheet

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

Product Description

The ROBERTSHAW Class 2 Transformer (SKU 6JZX7, MPN 620-502) is an open Class 2 transformer with a 50 VA power rating. It features a foot mounting, a 240V AC primary input, and a 24V AC secondary output, with wire lead connections on both the primary and secondary sides.

Frequently Asked Questions

What is a Robertshaw Class 2 transformer used for?

A Robertshaw Class 2 transformer steps down line voltage to 24V AC for low-voltage control circuits in HVAC, lighting, and industrial automation. It powers thermostats, relays, and controllers, ensuring safe, isolated power for sensitive equipment.

What are the specifications of the Robertshaw 620-502 transformer?

The Robertshaw 620-502 is a 50 VA open Class 2 transformer with 240V AC primary input and 24V AC secondary output. It features foot mounting, wire lead connections on both sides, and a primary fuse for overcurrent protection.

Where to buy a Robertshaw 620-502 transformer worldwide?

3G Electric supplies the Robertshaw 620-502 transformer worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this Class 2 transformer to your facility, wherever it is located.

How to install a Robertshaw Class 2 transformer?

Mount the transformer securely using its foot bracket. Connect the primary wire leads to a 240V AC source, ensuring the primary fuse is in place. Connect the secondary leads to the 24V AC load. Follow local electrical codes and verify polarity if required.

Used in

Common applications for Robertshaw
Commercial HVAC — Robertshaw RS10420T digital WiFi thermostat for programmable heat and cool control in office buildings
Furnace ignition — Robertshaw 41-230 universal hot surface ignitor for silicon carbide replacement in residential and light commercial furnaces
Airflow monitoring — Robertshaw 2374-509 adjustable air pressure switch for draft sensing in industrial burner systems
Gas-fired equipment — Robertshaw 1820-009 universal pilot assembly with thermopile for natural gas or LP water heaters and boilers
Vibration protection — Robertshaw 366A0 mechanical vibration switch for pump and compressor monitoring in industrial plants
OEM replacement — Robertshaw 41-428N direct spark igniter for Trane HVAC equipment requiring silicon nitride ignitors

Robertshaw Products

3G Electric supplies Robertshaw 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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