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7400WS18M19M
Square D 7400WS18M19M available at EU Automation. Get in touch today for a quick price.
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
Square D 7400WS18M19M is a low-voltage transformer enclosure weathershield accessory designed for use with transformer box sizes 18M and 19M. Manufactured in grey steel, this bolt-on kit adds a protective weathershield to help convert compatible transformer enclosures to a NEMA 3R outdoor-rated configuration, supporting improved protection against rain, sleet and external environmental exposure. Suitable for applications where existing transformer installations require an enclosure accessory to enhance weather resistance while maintaining a robust, durable metal construction.
| Specification | Description |
|---|---|
| Manufacturer | Square D |
| Part Number | 7400WS18M19M |
| Product Type | Weathershield accessory kit |
| Accessory Category | Enclosure accessory |
| Intended Use | Weathershield kit designed to help convert a compatible transformer box assembly to a NEMA 3R-style outdoor weathershield configuration |
| Product Destination | Transformer (enclosure/box application) |
| Compatible Box Numbers | 18M, 19M |
| Mounting Mode | Bolt-on |
| Material | Grey steel |
| GTIN | 785901330820 |
| Country of Origin | United States |
| Package Quantity | 1 piece |
| Approx. Package Dimensions (H × W × L) | 7.37 cm × 16.76 cm × 71.88 cm |
| Approx. Package Weight | 2.0 kg |
| EU RoHS Directive Status | Under investigation |
What does this weathershield accessory do?
It is a bolt-on weathershield kit intended to help convert a compatible low-voltage transformer enclosure to a NEMA 3R-style outdoor configuration, improving protection against falling rain, sleet and external ice formation.
Which enclosures is it designed to fit?
It is designed for transformer enclosure boxes identified as 18M and 19M. Please confirm the enclosure box number on the nameplate or documentation before selection.
What rating does it help achieve?
It is specified as a conversion to NEMA 3R for the compatible transformer box. NEMA 3R is generally intended for outdoor use to protect against weather such as rain and sleet (it is not dust-tight).
Is it suitable for indoor installations as well?
Yes. While it is commonly used to enable outdoor-style weather protection, it can also be used indoors where drip/rain-style protection is desired, provided the enclosure and installation method remain suitable for the environment.
How is the weathershield mounted?
It uses a bolt-on mounting method, meaning it is intended to be mechanically fastened to the compatible transformer enclosure rather than welded or bonded.
What material is it made from?
The weathershield is made from grey/gray steel, intended to match typical transformer enclosure construction and durability requirements.
Does this kit change the transformer’s electrical characteristics?
No. It is an enclosure accessory only; it does not change transformer kVA rating, voltage taps, temperature rise, or any internal electrical performance.
Can it be used on other box sizes besides 18M and 19M?
It is intended specifically for box numbers 18M and 19M. Using it on other enclosure sizes may lead to poor fit or compromised weather protection.
What applications commonly use a NEMA 3R weathershield on a transformer enclosure?
Common applications include outdoor or semi-exposed installations such as plant exteriors, loading-bay areas, covered walkways, or any location where the transformer enclosure may be exposed to rain or dripping water.
Is there any environmental compliance information available?
The EU RoHS status is listed as “under investigation” in the available product information. If you need documentation for a specific project requirement, note the identifier 7400WS18M19M in your internal compliance checks.
- Converting Square D transformer enclosure boxes 18M and 19M to a NEMA 3R weather-rated configuration for outdoor mounting
- Adding a protective weathershield to reduce rain and sleet ingress around transformer enclosure openings
- Improving environmental protection for low-voltage transformer installations on building exteriors and service areas
- Retrofitting existing transformer enclosures to better suit exposed industrial locations without changing the main enclosure
- Supporting compliance-driven enclosure upgrades where a weather-rated transformer box is required for the installed location
- Providing a bolt-on accessory solution to enhance enclosure suitability in damp or exposed utility spaces
- Protecting transformer enclosure components from direct precipitation in outdoor or semi-sheltered plant environments
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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All parts new or reconditioned are covered by EU Automation 12 month warranty
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
2 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
3 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
3 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
3 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
4 months ago
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