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
Safety Switch

Square D H321NRB - 30A, 240V, Safety Switch

★★★★★
Part Number H321NRB
Amperes 30
Voltage 240
Product Type Safety Switch
Icon
Manufacturer :Square D
Icon
Replacement available
Icon
Picture available on request
Icon
CSA / UL Approved
Regular price $510.00
Sale price $510.00 Regular price
Unit price
Save

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
Square D H321NRB - 30A, 240V, Safety Switch

Square D H321NRB - 30A, 240V, Safety Switch

Regular price $510.00
Sale price $510.00 Regular price
Unit price
Product description
Shipping

Introducing the Square D H321NRB – a rugged 30A, 240V Safety Switch engineered for dependable electrical isolation in demanding industrial and commercial environments. This is the disconnect you want when safety, reliability, and long-term durability matter most.

Designed to support proper lockout/tagout (LOTO) procedures, the H321NRB delivers controlled, dependable disconnection under load. That means maintenance teams can service equipment with confidence, knowing the circuit is safely isolated and energized risks are minimized. The enclosure features NEMA 3R protection, making it suitable for outdoor installations and exposed locations where weather or moisture might otherwise pose a challenge.

  • 30A at 240V for reliable isolation of mid-sized loads
  • Enclosure: NEMA 3R rated, offering outdoor-ready ruggedness and weather resistance
  • Purpose: Safety switch designed for safe isolation and disconnection under load
  • LOTO Compatibility: built to integrate with lockout/tagout procedures for compliant maintenance
  • Durability: robust construction built for long-term service in demanding environments

Ideal for facilities managers, electricians, and maintenance teams, this switch is a smart choice for motor control centers, outdoor pumps, HVAC equipment, conveyors, and other electrically powered machinery that requires a reliable, clearly identified disconnection point. The Square D H321NRB emphasizes safety and precision, helping reduce energy risks during servicing and ensuring equipment can be shut down cleanly and safely when needed.

Why choose Square D? A trusted name in industrial electrical solutions, Square D safety switches are designed to withstand daily wear and tear while delivering predictable performance. The H321NRB combines straightforward installation with uncompromising safety, helping you maintain uptime without compromising worker protection.

Practical tips to maximize performance:

  • Pair with compatible lockout devices and tags to reinforce LOTO effectiveness
  • Schedule disconnections during planned maintenance windows to minimize downtime
  • Ensure wiring and conductors are sized for 240V, 30A loads to maintain optimal performance

Contact sales@ampstate.com

Shipping cost is based on weight. Just add products to your cart and use the Shipping Calculator to see the shipping price.

We want you to be 100% satisfied with your purchase.

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

Fast industrial sourcing support

Need help?

  • Request a quote
  • Need a BOM priced for your project
  • Not sure which part is correct
  • Need an equivalent or replacement
  • Send your part list and get a fast reply

Email us at sales@ampstate.com for pricing, availability, alternates, and project support.

Email for a quote Typical reply: same business day