Square D H363RB Heavy Duty Safety Switch – 100A – 3 Pole – 600VAC/DC – Fusible Disconnect – NEMA 3R Outdoor Enclosure

The Square D H363RB Heavy Duty Safety Switch from Schneider Electric's F Series is a rugged, high-performance fusible disconnect switch engineered for demanding commercial, industrial, and utility applications. Designed to provide a reliable means of power isolation and equipment protection, this 3-pole safety switch features a 100A current rating and supports systems up to 600VAC/DC.

Built for durability in harsh environments, the H363RB incorporates a quick-make, quick-break operating mechanism that delivers dependable switching performance and enhanced operator safety. The switch also features a dual cover interlock that helps prevent accidental access to live components while the switch is energized, along with a color-coded handle that clearly indicates switch position.

The NEMA 3R galvannealed steel enclosure provides protection against rain, sleet, and outdoor environmental conditions, making it suitable for both indoor and outdoor installations. Designed to accept H, J, K, L, and R class fuses, the switch offers flexible overcurrent protection options and a short-circuit current rating up to 200kA when used with the appropriate fuse class.

Engineered to exceed NEMA KS-1 and UL 98 mechanical endurance requirements, the H363RB delivers long service life and dependable performance in motor control, power distribution, service entrance, and equipment isolation applications.

Specifications

• Brand: Square D by Schneider Electric
• Manufacturer: Schneider Electric
• Part Number: H363RB
• Product Family: F Series
• Device Type: Heavy Duty Safety Switch
• Switch Type: Fusible Disconnect
• Throw Type: Single Throw
• Poles: 3 Pole
• Current Rating: 100A
• Voltage Rating: 600VAC/DC
• Phase: 3 Phase
• Neutral: No Neutral Installed
• Mounting Type: Surface Mount
• Fuse Classes Accepted: H, J, K, L, R
• Enclosure Rating: NEMA 3R

Electrical Performance

• Rated Current: 100A
• Rated Voltage: 600VAC/DC
• Short-Circuit Current Rating (SCCR): 10kA–200kA (depending on fuse type)
• AIC Rating: 200kA @ 600V
• Quick-Make / Quick-Break Mechanism: Yes
• Suitable for Service Disconnect Applications: Yes

Mechanical & Construction Features

• Heavy-duty F Series construction
• Dual cover interlock for enhanced safety
• Color-coded operating handle
• Single-throw switching mechanism
• Galvannealed steel enclosure
• Outdoor and indoor installation capability
• Surface-mounted design
• Exceeds NEMA KS-1 and UL 98 endurance requirements
• Long mechanical service life for demanding industrial applications

Dimensions & Weight

• Dimensions (H × W × D): 6.38 × 10.25 × 21.25 in.
• Weight: 19.84 lbs

Applications

• Industrial power distribution systems
• Motor disconnect and isolation
• Service entrance disconnect applications
• HVAC equipment isolation
• Manufacturing facilities and process plants
• Commercial electrical installations
• Outdoor equipment disconnecting means

Standards & Certifications

• UL Listed
• CSA Approved
• NEMA 3R Rated Enclosure
• UL 98 Safety Switch Standard Compliance
• NEMA KS-1 Performance Compliance

Environmental Ratings

• NEMA 3R weather-resistant enclosure
• Suitable for outdoor installations
• Rain and sleet resistant design
• Corrosion-resistant galvannealed steel construction
• Designed for demanding industrial environments

Returns are easy

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

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