Allen-Bradley 1494F-D400/D - 400A, Disconnect Switch

Engineered for industrial reliability, the Allen-Bradley 1494F-D400/D is a high-performance 400A disconnect switch that delivers safe, rapid electrical isolation when it’s needed most. Built to perform in demanding commercial and industrial environments, it ensures technicians can work with confidence, knowing the circuit can be reliably isolated and de-energized.

Designed with lockout/tagout in mind, this disconnect switch provides dependable disconnection under load, helping maintain safety, compliance, and uptime across your electrical infrastructures. The robust construction and proven performance of Allen-Bradley equipment translate into long-term durability that minimizes unplanned downtime and maintenance hassle.

• 400A current rating for demanding feeders, motors, and service circuits.
• Safe isolation ensures circuits can be opened and verified off during maintenance or testing.
• Lockout/Tagout compatibility supports standard safety procedures to prevent accidental re-energization.
• Industrial-level durability designed to withstand harsh environments and frequent operation.
• Consistent performance under load maintains secure contacts and reliable disconnects when the system is live.

Who is this ideal for?

• Electrical engineers, maintenance technicians, and facilities managers working in manufacturing plants, data centers, and commercial facilities that require dependable service disconnects.
• Teams implementing strict safety protocols and lockout/tagout procedures for routine maintenance and emergency isolation.

Practical use cases

• Routine maintenance on heavy-duty motor circuits and large feeders where a clean, verifiable disconnection is essential.
• Emergency shutdowns or planned outages that demand rapid, reliable isolation without compromising safety.
• Pre-work electrical testing and troubleshooting where a clearly isolated source minimizes risk.

Compared to lighter-duty or generic disconnect options, the 1494F-D400/D combines Allen-Bradley’s engineering pedigree with a dedicated 400A rating, delivering trustworthy performance in environments where safety and reliability cannot be compromised.

Specifications in brief:

• Amperage Rating: 400A
• Product Type: Disconnect Switch
• Brand: Allen-Bradley
• Model: 1494F-D400/D

Safety and installation note: Always follow manufacturer guidelines and applicable electrical codes when wiring and placing this disconnect switch in service. Ensure proper labeling, maintain clear access for operation, and train personnel on lockout/tagout procedures to maximize safety and uptime.