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Description
Siemens / Square D HU365AWK 400A 3-Pole 600V Heavy Duty Fusible Safety SwitchProduct Description The HU365AWK is a 400 Amp, 3 Pole heavy duty fusible safety switch designed for commercial and industrial power distribution applications. Featuring a 600VAC rating, visible blade design, and rugged heavy duty construction, this switch provides a reliable means of disconnect for service entrance, feeder, and branch circuit applications. The NEMA 12 enclosure is suitable for indoor industrial environments where dust, dirt, and
Product Description
The HU365AWK is a 400 Amp, 3-Pole heavy-duty fusible safety switch designed for commercial and industrial power distribution applications. Featuring a 600VAC rating, visible blade design, and rugged heavy-duty construction, this switch provides a reliable means of disconnect for service entrance, feeder, and branch circuit applications. The NEMA 12 enclosure is suitable for indoor industrial environments where dust, dirt, and dripping non-corrosive liquids are present.
Key Features
- Catalog Number: HU365AWK
- Manufacturer: Square D / Schneider Electric
- Amperage: 400 Amp
- Poles: 3-Pole
- Voltage Rating: 600VAC
- Heavy Duty Safety Switch
- Fusible Design
- Visible Blade Construction
- Quick-Make Quick-Break Mechanism
- Service Entrance Rated
- NEMA 12 Enclosure
- UL Listed
- Indoor Application
Interrupting Ratings (KAIC)
Interrupting rating is determined by the fuse installed.
- 200kA RMS Symmetrical Maximum With Class R, J, or L Fuses
Technical Specifications
- Manufacturer: Square D / Schneider Electric
- Catalog Number: HU365AWK
- Type: Heavy Duty Fusible Safety Switch
- Amperage: 400A
- Poles: 3
- Voltage Rating: 600VAC
- Enclosure Type: NEMA 12
- Enclosure Material: Steel
- Mounting: Surface Mount
- Fuse Type:
- Class H
- Class J
- Class R
- Class L
- Service Entrance Rated: Yes
- Maximum Horsepower Rating:
- 200 HP @ 240VAC
- 500 HP @ 480VAC
- 600 HP @ 600VAC
- Certifications:
- UL Listed
- CSA Certified
Product Data
- Brand: Square D
- Manufacturer: Schneider Electric
- Model: HU365AWK
- Series: Heavy Duty Safety Switch
- Type: Fusible Safety Switch
- Enclosure: NEMA 12
- Material: Steel
- Mounting: Surface Mount
- Neutral: Not Included
- Condition: New / Reconditioned
- UPC: 785901344629
- GTIN: 00785901344629
- Dimensions:
- Height: 36.00"
- Width: 17.50"
- Depth: 10.75"
- Weight: Approximately 85 lbs
- Country of Manufacture: United States
Compatible Equipment
- Commercial Service Entrances
- Industrial Distribution Systems
- Manufacturing Facilities
- Motor Control Applications
- Switchboard Distribution Systems
Applications
- Service Entrance Disconnect
- Feeder Circuit Disconnect
- Industrial Power Distribution
- Manufacturing Equipment Isolation
- Motor Disconnect Applications
- Commercial Electrical Systems
Replacement Information
- Square D Heavy Duty Safety Switch
- Match replacement by catalog number HU365AWK
- Fuse class and enclosure type should match existing installation
- NEMA 12 indoor industrial enclosure configuration
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 1435 reviews
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Product Reviews
★★★★★ 5
Great little notebook
Style: COVER
I love these little notebooks. I have a case that they fit in just fine, along with a pencil. I use them primarily for my ham radio hobby for when I go to a park and need to record the contacts that I have made for the log.
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Reviewed in the United States on March 19, 2026
★★★★★ 5
Solid
Style: KIT
Waterproof, great for field exercises
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Reviewed in the United States on April 9, 2026
★★★★★ 4
Nice quality but could be better for the price.
Style: COVER
So nice quality but strange dimensions. There is no way to fold a standard 8.5x11" sheet of computer paper to fit neatly in this. So if you want to print out your own documents to take with you in this, this isn't ideal.
Has 2 internal pen slots and one on the outside. Has two business card slots but I wish it had more.
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Reviewed in the United States on January 21, 2026
★★★★★ 5
Pen Holder is Very Narrow
Style: COVER
Overall this item is effective for holding a Rite in the Rain 4.625" x 7" spiral side-bound notebook. There is no zipper on this so it does not seal. It has slots for a few cards and folded or smaller items can be tucked behind the notebook in the pockets that hold the covers. I haven't used it in the rain enough yet to know if those papers I have tucked in will stay dry. The description says a cell phone could be stored in those pockets as well. I haven't tried this, but my cell phone with a cover wouldn't fit. If you have a thin cell phone it might work, but I prefer to put both covers slid into the pockets so the notebook stays open easier when using it. The outer elastic closure is tight enough without being too tight. However, the pen holders are quite tight and small. They likely work well to hold in the Rite in the Rain pen that is narrow and smooth and possibly a narrow and smooth mechanical pencil, but they are too tight for my side click mechanical pencil. I could barely slide it in and when I tried to pull it out, the top half pulled off the bottom half of the pencil. It would also be a struggle to put larger pens in and out, but the elastic might stretch to fit those that are smooth over time. Despite not being able to use the loops for my preferred pencil, I chose to keep it.
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Reviewed in the United States on November 23, 2025
★★★★★ 5
Just what I was wanting
Style: KIT
Ordered to use a a gym notebook to track my progress. It’s holding up well being exposed to being shoved in a cramped gym bag repeatedly over the last 2 months. Sweat and water hasn’t hurt it and the cover seems to be holding up well. Still looks practically brand new.
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Reviewed in the United States on November 5, 2025