ABB OT100E3 - 100A, Disconnect Switch

When safety and reliability are non-negotiable on the shop floor, the ABB OT100E3 100A Disconnect Switch stands ready to deliver. Built for industrial and commercial environments, this device provides safe electrical isolation to protect personnel and equipment during maintenance, testing, and service procedures.

The OT100E3 is engineered to support proper lockout/tagout (LOTO) procedures, helping teams secure circuits and prevent accidental energization. It delivers dependable disconnection under load, ensuring a clear, verifiable isolation point even in demanding operating conditions. Designed for long-term durability, this disconnect switch is a trusted component in continuous production and heavy-use facilities.

Key advantages

• 100 A current rating provides a robust isolation option for mid-to-high current circuits in machinery, panels, and process lines.
• Safe electrical isolation essential for maintenance, servicing, and routine safety checks without interrupting the overall system unnecessarily.
• LOTO compatibility supports compliant safety practices, helping teams secure the circuit during work and reduce risk of re-energization.
• Dependable disconnection under load ensures the circuit is reliably opened when required, minimizing downtime and exposure to live equipment.
• Long-term durability built to withstand the rigors of industrial environments, providing steady performance over years of use.

Ideal use cases

Use the ABB OT100E3 to isolate power for machine control circuits, service panels, and critical equipment in manufacturing, packaging, and commercial facilities. It’s well-suited for routine maintenance windows, safety audits, and any scenario where a clear, verifiable disconnect is essential for worker safety and operational uptime.

Why this matters in the real world

Rather than relying on temporary workarounds, the OT100E3 establishes a concrete, visible isolation point. This helps maintenance teams work confidently, reduces the risk of electrical accidents, and supports compliance with safety protocols that protect people and assets over the long term.

Specifications at a glance

• Amperage rating: 100 A
• Product type: Disconnect Switch
• Brand: ABB
• Model: OT100E3