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Fused Safety Switch

Siemens HF321N - 30A, 3-Pole, Fused Safety Switch

★★★★★
Part Number HF321N
Amperes 30
Poles 3
Product Type Fused Safety Switch
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Manufacturer :Siemens
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $410.00
Sale price $410.00 Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.

Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.

Icon
Secure transaction
Icon
FREE & fast shipping on orders over $49
Icon
CSA approved with 1 year warranty
Icon
30 day returns
Siemens HF321N - 30A, 3-Pole, Fused Safety Switch

Siemens HF321N - 30A, 3-Pole, Fused Safety Switch

Regular price $410.00
Sale price $410.00 Regular price
Unit price
Product description
Shipping

Siemens HF321N 30A, 3-Pole, Fused Safety Switch delivers industrial-grade electrical isolation with reliable disconnection under load. Designed for both industrial and commercial environments, this switch combines built-in fuse protection with straightforward operation to support safe maintenance and compliant lockout/tagout procedures.

Key advantages that set the HF321N apart

  • 30A, 3-Pole configuration: ensures complete disconnection of all live conductors, reducing exposure and simplifying servicing of multi-line equipment.
  • Fused protection: built-in fuses provide overcurrent protection in a single, integrated unit, helping manage fault currents without needing additional components.
  • NEMA 1 enclosure: rugged indoor protection against dust and incidental contact, making it suitable for utility rooms, switchgear, and controlled environments.
  • Lockout/Tagout readiness: specifically designed to support standard safety procedures, enabling secure maintenance without sacrificing uptime.
  • Long-term durability: engineered by Siemens for dependable performance in demanding industrial settings, reducing maintenance intervals and replacement risk.

Ideal use cases

  • Isolating feeders and control circuits on production lines, conveyors, pumps, and fans during routine maintenance.
  • Upgrading older isolation solutions to a fused 3-pole switch that streamlines safety procedures and improves reliability.
  • Installing a dedicated, fused disconnect in control panels and industrial enclosures to simplify emergency shutdown and routine lockouts.

How it works

The HF321N integrates a three-pole switch with built-in fuses to deliver a clean, definitive disconnect when required. In daily operation, technicians can lock out the switch to prevent accidental energization, ensuring a safe maintenance window. When a fault occurs, the fused design provides rapid interruption, helping protect personnel and equipment while maintaining system integrity.

Specifications at a glance

  • Amperage rating: 30A
  • Number of poles: 3-Pole
  • Enclosure rating: NEMA 1
  • Product type: Fused Safety Switch
  • Brand: Siemens
  • Model: HF321N

Why choose the Siemens HF321N

Incorporate the Siemens HF321N into your industrial safety strategy to enhance lockout/tagout efficacy, protect personnel, and maintain consistent disconnection under load.

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General feedback we often hear from customers purchasing industrial electrical parts.

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Exactly what we needed for a shutdown replacement. No surprises.

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