Home › Manufacturers › Allen Bradley › 140M-D8V-B40

Allen Bradley

Allen-Bradley 140M-D8V-B40 Safety Switch, 400A

Allen-Bradley 140M-D8V-B40 Safety Switch - 400A

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

In Stock — Ready to Ship

ManufacturerAllen Bradley

Part number140M-D8V-B40

Amperage 400A

Voltage 600V AC

Series 140M

Type Safety Disconnect Switch

Get a price for 140M-D8V-B40

Response within 1 business hour

🛡

12-month warranty

All units tested

⚡

Same-day dispatch

Order by 2pm CST

🌐

Worldwide delivery

US, EU, Asia, Middle East

🎖

Veteran-owned

CAGE: 9NK75

High current capacity Visible break design Lockable handle Robust industrial construction UL, CSA recognized Reliable power isolation

Product description

The Allen-Bradley 140M-D8V-B40 is a heavy-duty safety switch engineered for high-current industrial applications, providing reliable power disconnection. It features a robust 400A current rating and a 600V AC voltage rating, ensuring safe and efficient operation.

This switch is typically used for main disconnects on large machinery, industrial power distribution systems, and in applications requiring a high amperage rating for critical safety isolation. Its durable construction is built to withstand demanding industrial environments.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the Allen-Bradley 140M-D8V-B40. We provide cost-effective, quality components to help you maintain your operations and minimize downtime.

Technical specifications

Amperage	400A
Voltage	600V AC
Series	140M
Type	Safety Disconnect Switch
Poles	3
Mounting	Panel Mount

Common applications

Main disconnects

Heavy industrial machinery

Power distribution

Motor control centers

Large equipment isolation

Manufacturing facilities

Compatible systems

Suitable for integration into heavy-duty industrial control panels and power distribution systems requiring a high-amperage disconnect.

Also known as

140M-D8V-B40 disconnect Allen Bradley 400A safety switch Bulletin 140M disconnect 3-pole heavy-duty disconnect

Replaces / compatible with

This 400A safety switch serves as a robust replacement for older Allen-Bradley 140M series disconnects or other industrial-grade safety switches requiring a high amperage rating.

Technical note

Expert tip

Proper installation and wiring are crucial for the 400A rating; ensure connections are tight and the conductor size is adequate for the current load.

What happens next?

Email confirmation

Immediate receipt acknowledgment sent to you

Account manager assigned

Confirms your part's spec and condition

Your quote delivered

Tailored to your specific requirements

Frequently asked questions

What is the primary function of the Allen-Bradley 140M-D8V-B40 safety switch in industrial settings?

The primary function of the 140M-D8V-B40 is to provide a safe, visible, and lockable means of disconnecting electrical power to heavy industrial machinery, ensuring personnel safety during maintenance and operation.