Robertshaw Class 2 Transformer: 40 VA Power Rating, 120V AC, 24V AC, Primary Fuse
The ROBERTSHAW Class 2 Transformer is an open-style transformer with a 40 VA power rating, designed for plate mounting. It features a 120V AC primary input and a 24V AC secondary output, with wire lead connections on…
SKU 3G-OTH-46915
Also listed as: 620403 · 620 403
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
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Product Description
The ROBERTSHAW Class 2 Transformer is an open-style transformer with a 40 VA power rating, designed for plate mounting. It features a 120V AC primary input and a 24V AC secondary output, with wire lead connections on both the primary and secondary sides. This model (MPN 620-403) includes a primary fuse for protection.
Frequently Asked Questions
What is the ROBERTSHAW Class 2 Transformer used for?
The ROBERTSHAW Class 2 Transformer (MPN 620-403) steps down 120V AC primary power to 24V AC secondary power for low-voltage control circuits in HVAC systems, boilers, and industrial automation. Its 40 VA rating suits thermostats, relays, and zone valves.
What are the specifications of the ROBERTSHAW Class 2 Transformer?
This open-style transformer has a 40 VA power rating, 120V AC input, and 24V AC output. It features wire lead connections on both primary and secondary sides, plate mounting, and a primary fuse for protection. The brand is ROBERTSHAW, MPN 620-403.
Where to buy the ROBERTSHAW Class 2 Transformer worldwide?
3G Electric supplies the ROBERTSHAW Class 2 Transformer (MPN 620-403) worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.
How to install a ROBERTSHAW Class 2 Transformer?
Mount the transformer securely on a plate using the foot/plate design. Connect the primary wire leads to a 120V AC source and the secondary leads to the 24V AC load. Ensure the primary fuse is correctly rated. Follow local electrical codes and disconnect power before installation.
Used in
Common applications for RobertshawRobertshaw 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.
