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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

The Siemens HF321N is a 30A, 3-pole fused safety switch engineered for the demands of industrial and commercial environments where safe electrical isolation is non-negotiable. Designed to support proper lockout/tagout procedures, this device delivers a reliable disconnection under load, helping to protect workers and keep downtime to a minimum.

Why choose the HF321N

  • Three-pole design for comprehensive isolation — ideal for three-phase systems, ensuring all conductors are safely disconnected during maintenance.
  • Fused protection — fast fault clearing and overcurrent protection reduce the risk of equipment damage and unexpected outages.
  • Safe isolation under load — a dependable disconnect mechanism that ensures circuits can be isolated without energizing other parts of the system.
  • Durable, industrial-grade build — designed to withstand the rigors of busy facilities, delivering long-term reliability in demanding environments.
  • Lockout/tagout readiness — built to integrate with standard safety procedures, helping teams meet safety standards during servicing and maintenance.

Ideal use cases

From motor control centers and conveyor lines to manufacturing equipment and HVAC systems, the HF321N provides a robust solution for any scenario requiring safe power isolation and controlled maintenance shutdowns. It’s particularly valuable in facilities that prioritize worker safety and uptime, and in projects where Siemens safety components are part of a standardized electrical safety strategy.

Specifications at a glance

  • Amperage Rating: 30A
  • Number of Poles: 3-Pole
  • Product Type: Fused Safety Switch
  • Brand: Siemens
  • Model: HF321N

With the Siemens HF321N, you’re choosing a purpose-built fused safety switch that prioritizes reliable disconnection, safe maintenance workflows, and durable performance across demanding industrial environments. This is the practical, safety-forward choice for professionals who value precise electrical isolation and predictable operation.

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What Our Customers Say

4.9 (38 reviews)

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

Verified

Solid quality component. Exactly as described on the product page.

Maintenance team · Ontario

Verified

Packaging was secure and the item arrived clean and ready for installation.

Electrical contractor · GTA

Verified

We’ve used this type on multiple jobs and it’s been reliable so far.

Panel shop · Canada/US

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