Siemens HF365A Safety Switch – VBII Series – 400A – 3 Pole – 600VAC – Heavy Duty Fusible Disconnect – NEMA 1 Indoor Enclosure

The Siemens HF365A is a VBII Series heavy-duty fusible safety switch designed for high-capacity power distribution, motor control, and equipment isolation in commercial and industrial electrical systems. Rated at 400A and 600VAC, this 3-pole, 3-phase switch features a fusible single-throw design that ensures reliable disconnect functionality and enhanced protection when used with properly rated fuses.

Engineered for indoor installations, the HF365A is housed in a rugged NEMA Type 1 enclosure and built with a durable steel construction for long service life. With a high 200kA short-circuit current rating, this switch delivers strong fault protection and dependable performance in demanding electrical environments.

Specifications

• Brand: Siemens
• Part Number: HF365A
• Series: VBII Series
• Type: VBII Fusible Heavy Duty Low Voltage Single Throw
• Category: Safety Switch / Disconnect Switch
• Duty Rating: Heavy Duty
• Fusibility: Fusible
• Contact Configuration: 3PST / TPST
• Enclosure Type: NEMA 1 (Indoor)
• Material: Steel
• Mounting Type: Surface

Electrical Ratings

• Current Rating: 400A
• Voltage Rating: 600VAC
• Frequency Rating: 60 Hz
• Number of Poles: 3 Pole
• Phase: 3 Phase
• Number of Wires: 3
• Short Circuit Current Rating: 200kA

Motor / Load Ratings

• Horsepower Rating: 125 HP
• Operating Temperature: -29°C to 85°C

Features

• Heavy-duty fusible safety switch
• High-capacity 400A rating
• 3-pole, 3-phase configuration
• High 200kA short-circuit withstand rating
• Rugged steel NEMA 1 indoor enclosure
• Surface-mounted design
• Mechanical lug terminal connections
• Suitable for industrial power distribution systems
• Reliable manual disconnecting means for equipment isolation

Construction

• Heavy-duty steel enclosure
• NEMA 1 indoor-rated housing
• Industrial-grade switching mechanism
• Built for long-term durability and reliability
• Surface-mounted installation

Applications

• Industrial power distribution systems
• Commercial electrical installations
• Service entrance equipment (indoor)
• Motor control and protection systems
• HVAC and mechanical equipment disconnects
• Manufacturing facilities
• Equipment isolation and maintenance operations
• Lockout/Tagout (LOTO) safety procedures

Returns are easy

You may return items within 30 days of delivery for a refund.

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