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Disconnect Switch

3/4 - Disconnect Switch

Part Number 4-Mar
Product Type Disconnect Switch
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Manufacturer :
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $790.00
Sale price $790.00 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
3/4 - Disconnect Switch

3/4 - Disconnect Switch

Regular price $790.00
Sale price $790.00 Regular price
Unit price
Product description
Shipping

Meet the 3/4 - Disconnect Switch, the 4-Mar model designed for industrial and commercial environments where safe electrical isolation and reliable performance are non-negotiable. Built to endure demanding service, this disconnect switch delivers dependable disconnection under load while supporting rigorous lockout/tagout procedures for worker safety.

Why this disconnect switch stands out

  • Safest in-line isolation: engineered to provide clean, decisive disconnection, reducing arc exposure and helping maintenance teams work confidently on energized equipment.
  • Lockout/Tagout ready: features clearly accessible lockout points and compatibility with standard padlocks, making routine safety procedures straightforward and compliant.
  • Under-load reliability: designed to perform reliably even when circuits are energized, ensuring safe isolation without surprising switches or power rebounds.
  • Durable, long-term build: rugged construction tailored for harsh environments, delivering durable operation and minimal maintenance over time.
  • Compact, install-friendly form: purpose-built for panel mounting with a compact footprint, helping you maximize space without compromising performance.

Who benefits most

  • Electrical maintenance teams conducting routine service, testing, and preventive maintenance on motors, pumps, conveyors, and other industrial feeders.
  • Panel builders and facilities managers seeking a dependable disconnect that integrates smoothly into existing electrical panels and safety workflows.
  • Contractors and technicians responsible for implementing lockout/tagout procedures in manufacturing, processing, and commercial settings.

Key use cases and scenarios

  • Shutting off power to a motor or equipment line during maintenance while ensuring immediate isolation from the rest of the system.
  • Serving as the primary service disconnect in distribution panels, allowing quick de-energization for safety checks or component replacement.
  • Supporting safe isolation in HVAC, pumping, and conveyor applications where frequent maintenance requires reliable switch-off under load.

Practical insights to get the most out of the 3/4 - Disconnect Switch

  • Pair with standard lockout devices to create a tamper-resistant safety point during servicing.
  • Schedule regular inspection of the switch mechanism to maintain crisp operation and predictable disconnection performance.
  • Document disconnection points and procedures as part of your facility’s safety program to streamline audits and compliance.

Specifications at a glance

  • Product Type: Disconnect Switch
  • Model: 4-Mar
  • Form Factor: 3/4 variant designed for compact panel integration

Choose the 3/4 - Disconnect Switch when you need a trustworthy, safety-focused isolation device that performs under load, supports lockout/tagout, and stands up to the rigors of industrial and commercial environments. It’s the practical, no-surprise solution for reliable electrical isolation you can depend on day after day.

Contact sales@ampstate.com

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What Our Customers Say

4.9 (38 reviews)

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

Verified

Matched our existing hardware and fit as expected. Clean install.

Maintenance · Retrofit work

Verified

Quick confirmation on details and a smooth ordering process.

Purchasing · Fast turnaround

Verified

Came well packed. Labeling made receiving and staging easy.

Warehouse · Receiving

Fast industrial sourcing support

Need help?

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

Email for a quote Typical reply: same business day