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Robertshaw Class 2 Transformer: 50 VA Power Rating, 120V AC/208V AC/240V AC, 28V AC - Open Class 2 Transformers
RobertshawOpen Class 2 Transformers

Robertshaw Class 2 Transformer: 50 VA Power Rating, 120V AC/208V AC/240V AC, 28V AC

The ROBERTSHAW Class 2 Transformer (MPN 620-501) is an open-style transformer with a 50 VA power rating. It features a foot mounting, a 240V AC primary input, and a 28V AC secondary output. Primary connection is via…

SKU 3G-OTH-49291

Brand
Robertshaw
Item
Class 2 Transformer: 50 VA Power Rating, 120V AC/208V AC/240V AC, 28V AC
Category
Open Class 2 Transformers
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Technical Specifications

Robertshaw
Manufacturer Part Number
620-501
Type
Primary Fuse
AC
28V
Mounting
Foot
Input Voltage
240V AC
Output Voltage
28V AC
AC/208V AC/240V AC
120V
Connection - Primary
Wire Lead
Connection - Secondary
Screw Terminal
View Full Spec Sheet

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

Product Description

The ROBERTSHAW Class 2 Transformer (MPN 620-501) is an open-style transformer with a 50 VA power rating. It features a foot mounting, a 240V AC primary input, and a 28V AC secondary output. Primary connection is via wire lead, while the secondary connection uses a screw terminal.

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 ROBERTSHAW Class 2 Transformer 620-501 used for?

The ROBERTSHAW Class 2 Transformer 620-501 is used to step down a 240V AC primary input to a 28V AC secondary output for low-voltage control circuits in HVAC systems, boilers, and industrial automation. Its 50 VA power rating and foot mounting make it suitable for panel or equipment installation.

What are the specifications of the ROBERTSHAW Class 2 Transformer 620-501?

The ROBERTSHAW Class 2 Transformer 620-501 has a 50 VA power rating, 240V AC primary input, and 28V AC secondary output. It features a primary fuse, foot mounting, wire lead primary connection, and screw terminal secondary connection. Input voltage options include 120V AC, 208V AC, and 240V AC.

Where to buy the ROBERTSHAW Class 2 Transformer 620-501 worldwide?

You can source the ROBERTSHAW Class 2 Transformer 620-501 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 on this open-style transformer.

How to install the ROBERTSHAW Class 2 Transformer 620-501?

Mount the ROBERTSHAW Class 2 Transformer 620-501 securely using its foot mounting bracket. Connect the primary wire leads to a 240V AC supply (or 120V/208V AC as applicable) and the secondary screw terminals to the 28V AC load circuit. Ensure the primary fuse is correctly rated and installed before powering on.

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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