Square D HU365AWK Heavy-Duty Fusible Safety Switch – 400A – 3-Pole / 3-Phase – 600V AC – 200kA RMS Symmetrical Max – Surface Mount – Heavy-Duty Safety Switch Series

The Square D HU365AWK is a 400A, 3-pole heavy-duty fusible safety switch designed for commercial and industrial electrical power distribution applications. It is rated for 600V AC and features a visible-blade design with a Quick-Make/Quick-Break mechanism for disconnect applications.

The HU365AWK features a NEMA 12 steel enclosure designed for indoor industrial environments where protection from dust, dirt, and dripping non-corrosive liquids is required. It is service-entrance rated and is suitable for service entrance, feeder, branch circuit, motor disconnect, and industrial distribution applications.

Its interrupting rating is determined by the installed fuse and is specified as 200kA RMS symmetrical maximum with Class R, J, or L fuses.

Specifications:

• Manufacturer: Square D / Schneider Electric
• Product Type: Heavy-Duty Fusible Safety Switch
• Product Family: Heavy-Duty Safety Switch
• Series: Heavy-Duty Safety Switch
• Catalog No.: HU365AWK
• Current Rating: 400A
• Number of Poles: 3-Pole
• Phase: Not specified
• Voltage Rating: 600V AC
• Interrupting Rating: 200kA RMS Symmetrical Maximum with Class R, J, or L Fuses
• Switch Type: Fusible Safety Switch
• Fuse Classes: Class H, Class J, Class R, Class L
• Blade Design: Visible Blade
• Mechanism: Quick-Make / Quick-Break
• Enclosure Type: NEMA 12
• Enclosure Material: Steel
• Mounting Type: Surface Mount
• Service Entrance Rated: Yes
• Neutral: Not Included
• Application: Service Entrance, Feeder, Branch Circuit, Motor Disconnect, and Industrial Power Distribution
• Maximum Horsepower: 200 HP @ 240V AC; 500 HP @ 480V AC; 600 HP @ 600V AC
• Dimensions (H × W × D): 36.00 × 17.50 × 10.75 in
• Weight: Approximately 85 lbs
• Country of Manufacture: United States
• Brand: Square D / Schneider Electric

Part Numbers & Identification:

• Manufacturer Part Number (MPN): HU365AWK
• Catalog Number: HU365AWK
• Model: HU365AWK
• Product Family: Square D Heavy-Duty Safety Switches
• Series: Heavy-Duty Safety Switch
• Brand: Square D
• Manufacturer: Schneider Electric
• Product Type: Heavy-Duty Fusible Safety Switch
• Configuration: 3-Pole, 400A
• Fuse Type: Class H, J, R, or L
• Enclosure: NEMA 12
• UPC: 785901452096

Compatibility:

Designed for compatible Square D / Schneider Electric heavy-duty safety switch applications requiring a 400A, 3-pole, 600V fusible disconnect. The HU365AWK is suitable for commercial service entrances, feeder circuits, branch circuits, manufacturing facilities, motor-control applications, and industrial distribution systems.

The switch accepts applicable Class H, J, R, or L fuses, with a specified maximum interrupting rating of 200kA RMS symmetrical when used with Class R, J, or L fuses. Replacement applications should match the existing HU365AWK catalog number, fuse class, enclosure type, voltage, and installation configuration.

Always verify the specific electrical equipment, system voltage, available fault current, fuse requirements, conductor requirements, enclosure requirements, service-entrance requirements, mounting arrangement, and installation specifications before installation.

Certifications:

• UL Listed
• CSA Certified
• 400A Rated
• 3-Pole
• 600V AC Rated
• 200kA RMS Symmetrical Maximum with Class R, J, or L Fuses
• Heavy-Duty Fusible Safety Switch
• Visible Blade Design
• Quick-Make / Quick-Break Mechanism
• NEMA 12 Enclosure
• Steel Enclosure
• Surface Mount
• Service Entrance Rated
• Class H / J / R / L Fuse Compatible

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