3/4 - Disconnect Switch

Meet the 3/4 - Disconnect Switch, built around the rugged reliability of the Model 4-Mar. This high-performance disconnect switch is designed for industrial and commercial environments where safe electrical isolation isn’t optional—it’s essential. It supports proper lockout/tagout procedures and delivers dependable disconnection under load, built for long-term durability in demanding facilities.

Why the 4-Mar stands out

• Safe electrical isolation: Precisely controls power to critical circuits, enabling maintenance and servicing without energizing the system.
• Lockout/Tagout readiness: Supports safety protocols to prevent unexpected energization during work, helping your team stay compliant and protected.
• Reliable disconnection under load: Maintains a clean, decisive break in the circuit even when lines are live, reducing the risk of arcing or accidental re-energization.
• Durable, long-term performance: Built to endure daily operation in harsh industrial and commercial settings, delivering consistent results year after year.

Ideal applications

Perfect for maintenance shutdowns, routine servicing, and any scenario requiring guaranteed isolation of electrical circuits. This switch is a practical choice for facilities where safety standards are strict and reliability is non-negotiable.

Who should consider this switch

Plant engineers, maintenance technicians, facility managers, and safety officers looking to reinforce lockout/tagout compliance while ensuring dependable circuit disconnection during service or emergencies.

Practical considerations and best-use tips

• Plan isolations around maintenance windows to minimize downtime while maximizing safety.
• Pair with approved lockout/tagout devices according to your safety program to ensure full compliance.
• Verify isolation with proper testing procedures before commencing work, and restore power only after re-energization checks.

Specifications

Product Type: Disconnect Switch
Model: 4-Mar