HF321S | Siemens Safety Switch 30A 3-Pole 240V NEMA 4X Stainless Steel
Siemens · Circuit Breakers & Protection
Description The Siemens HF321S is a heavy-duty fusible safety switch from the VBII series, rated at 30A and 240V. Built with a NEMA 4X stainless steel enclosure, it provides secure disconnecting means for service entrances and load applications in both indoor and outdoor environments. Technical Specifications Condition New/Never Used Surplus Brand Siemens Category Safety Switches Part Number HF321S Subcategory Heavy-Duty Fusible Safety Switch Series VBII Frame Type HF Voltage Rating 240 VAC / 250 VDC Amperage Rating 30 A Poles 3 Phase 3 Duty Rating Heavy Duty Protection Method Fusible Fuse Class Class H (optional Class R kit HRK4060) Contact Configuration 3PST (3-Pole Single Throw) Interrupting Rating 200 kAIC @ 240V Enclosure Type NEMA 4 / 4X, IP66 Material 304 Stainless Steel (18-8 grade) Housing Material Metallic Mounting Type Surface / Panel Mount Terminal Connection Lugs Neutral Assembly Included Horsepower Rating 7.5 HP @ 240 VAC Environment Indoor/Outdoor, corrosion resistant Dimensions (H x W x D) 15.5" x 9.0" x 8.5" Standards UL Listed Weight 23 lbs Information About HF321S The Siemens HF321S is a rugged safety switch engineered for reliable operation in demanding environments. With a 30A rating and support for 240V AC or 250V DC, it provides dependable overcurrent protection using Class H fuses, with an option for Class R fuses via a kit. Constructed from 304 stainless steel, this unit meets NEMA 4X standards, ensuring resistance to corrosion and harsh weather, making it suitable for indoor and outdoor use. Designed for heavy-duty applications, it offers secure disconnecting means for service entrances and load circuits in industrial, commercial, and utility installations. Key Features: Heavy-Duty Rating: Supports 30A continuous duty at 240V, providing reliable performance in demanding applications. Fusible Protection: Designed for Class H fuses with optional Class R conversion for enhanced protection. Three-Pole, Three-Phase Design: Provides safe disconnecting capability across three-phase electrical systems. High Interrupting Rating: Rated for 200 kAIC at 240V, ensuring strong fault current clearing capacity. Stainless Steel Construction: Built from 304-grade stainless steel, offering corrosion resistance for long service life. NEMA 4X Enclosure: Ensures watertight, dust-tight, and corrosion-resistant protection suitable for harsh environments. Surface Mounting: Simplifies installation on panels or walls, ensuring a secure fit. Neutral Assembly Included: Facilitates reliable grounding and circuit continuity. Horsepower Rating: Supports motor loads up to 7.5 HP at 240V AC. Compliance: UL listed and designed to meet stringent safety standards for industrial installations. The HF321S delivers the reliability and precision required for heavy-duty disconnecting and circuit protection, particularly in environments where corrosion resistance and durability are essential.
Brand: Siemens · Category: Circuit Breakers & Protection
Key features
- Heavy-Duty Rating: Supports 30A continuous duty at 240V, providing reliable performance in demanding applications.
- Fusible Protection: Designed for Class H fuses with optional Class R conversion for enhanced protection.
- Three-Pole, Three-Phase Design: Provides safe disconnecting capability across three-phase electrical systems.
- High Interrupting Rating: Rated for 200 kAIC at 240V, ensuring strong fault current clearing capacity.
- Stainless Steel Construction: Built from 304-grade stainless steel, offering corrosion resistance for long service life.
- NEMA 4X Enclosure: Ensures watertight, dust-tight, and corrosion-resistant protection suitable for harsh environments.
- Surface Mounting: Simplifies installation on panels or walls, ensuring a secure fit.
- Neutral Assembly Included: Facilitates reliable grounding and circuit continuity.
- Horsepower Rating: Supports motor loads up to 7.5 HP at 240V AC.
- Compliance: UL listed and designed to meet stringent safety standards for industrial installations.
Specifications
| Manufacturer part number | HF321S |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Safety Switches |
| Part Number | HF321S |
| Subcategory | Heavy-Duty Fusible Safety Switch |
| Series | VBII |
| Frame Type | HF |
| Voltage Rating | 240 VAC / 250 VDC |
| Amperage Rating | 30 A |
| Poles | 3 |
| Phase | 3 |
| Duty Rating | Heavy Duty |
| Protection Method | Fusible |
| Fuse Class | Class H (optional Class R kit HRK4060) |
| Contact Configuration | 3PST (3-Pole Single Throw) |
| Interrupting Rating | 200 kAIC @ 240V |
| Enclosure Type | NEMA 4 / 4X, IP66 |
| Material | 304 Stainless Steel (18-8 grade) |
| Housing Material | Metallic |
| Mounting Type | Surface / Panel Mount |
| Terminal Connection | Lugs |
| Neutral Assembly | Included |
| Horsepower Rating | 7.5 HP @ 240 VAC |
| Environment | Indoor/Outdoor, corrosion resistant |
| Dimensions (H x W x D) | 15.5" x 9.0" x 8.5" |
| Standards | UL Listed |
| Weight | 23 lbs |
| Product type | Heavy-Duty Fusible Safety Switch |
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