ABB TH3363R - 100A, 3-Pole, Fused Safety Switch

ABB TH3363R is a high-performance 100A, 3-pole fused safety switch engineered for industrial and commercial environments where safe electrical isolation is non-negotiable. This robust device excels at delivering dependable disconnection under load while supporting proper lockout/tagout procedures to protect personnel during maintenance and service.

Why technicians choose the ABB TH3363R in real-world settings:

• Three-pole, 100A rating: Designed to handle three-phase circuits with reliable current protection, making it ideal for motors, drives, and other heavy loads.
• Integrated fusing: Provides immediate overcurrent protection within the switch, simplifying wiring and enhancing operational safety.
• NEMA 3R enclosure: Weatherproof and durable, the enclosure supports outdoor installations and harsh environments without compromising performance.
• LOTO compatibility: Engineered to support lockout/tagout procedures, helping ensure secure de-energization during maintenance and reducing for-risk re-energization.
• Long-term durability: Built to withstand demanding industrial use, delivering consistent performance and reliable service life in challenging facilities.

Ideal applications

• Motor control for conveyors, pumps, fans, and other three-phase equipment up to 100A
• Equipment isolation in manufacturing floors, maintenance rooms, and service panels
• Outdoor or exposed installations where weather protection and safe disconnection are essential

What makes this ABB switch stand out

Unlike basic disconnects, the ABB TH3363R blends safe isolation with built-in protection, reducing the steps required for maintenance readiness. Its 3P configuration aligns with common industrial electrical layouts, while the 100A rating ensures compatibility with a wide range of mid-size machinery. The combination of a fused safety switch and a NEMA 3R enclosure delivers a solution that tackles both safety and reliability—so you can keep production moving and crews protected.

Specifications at a glance

• Amperage Rating: 100A
• Number of Poles: 3-Pole
• Enclosure Rating: NEMA 3R
• Product Type: Fused Safety Switch
• Brand: ABB
• Model: TH3363R