Siemens HF363S Safety Switch – VBII Series – 100A – 3 Pole – 600VAC – Heavy Duty Fusible Disconnect – NEMA 4X 304 Stainless Steel Enclosure

The Siemens HF363S is a VBII Series heavy-duty fusible safety switch engineered for reliable circuit isolation and overcurrent protection in harsh industrial and corrosive environments. Rated at 100A and 600VAC, this 3-pole, 3-phase switch provides dependable disconnect performance and enhanced fault protection when used with properly rated fuses.

Constructed with a rugged NEMA Type 4X enclosure made from 304 stainless steel, the HF363S is designed to withstand moisture, corrosion, washdown conditions, and demanding environmental exposure. Its insulated design, high short-circuit current rating, and heavy-duty construction make it ideal for critical industrial power distribution and equipment protection applications.

Specifications

• Brand: Siemens
• Part Number: HF363S
• Series: VBII Series
• Type: VBII Enclosed 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 4X
• Material: 304 Stainless Steel
• Insulation Type: Insulated

Electrical Ratings

• Current Rating: 100A
• Voltage Rating: 600VAC
• Frequency: 60 Hz
• Number of Poles: 3 Pole
• Phase: 3 Phase
• Number of Wires: 3
• Short Circuit Current Rating: 200kA

Motor / Load Ratings

• 1-Phase Applications: Up to 25 HP
• 3-Phase Applications: Up to 30 HP

Features

• Heavy-duty fusible safety switch
• 3-pole, 3-phase configuration
• NEMA 4X enclosure for washdown and corrosive environments
• Durable 304 stainless steel construction
• High 200kA short-circuit current rating
• Insulated design for enhanced safety
• Surface-mounted installation
• Reliable single-throw operating mechanism
• Mechanical lug terminal connections

Construction

• NEMA 4X 304 stainless steel enclosure
• Heavy-duty industrial switching mechanism
• Corrosion-resistant design for harsh environments
• Surface-mounted configuration
• Built for long-term industrial service

Physical Specifications

• Dimensions: 25 in H × 10.43 in W × 10.46 in D
• Operating Temperature: -29°C to 85°C

Standards and Approvals

• UL Listed
• Siemens Authentic Product

Applications

• Food and beverage processing facilities
• Chemical and petrochemical plants
• Marine and offshore installations
• Wastewater treatment facilities
• Pharmaceutical manufacturing facilities
• Outdoor industrial environments
• Equipment isolation and maintenance safety

Returns are easy

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

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