Siemens RT-1492 - 20A, 3-Pole, Circuit Breaker

The Siemens RT-1492 is a dependable 20A, 3-pole circuit breaker designed to protect three-phase power systems in a wide range of demanding environments. Built for industrial, commercial, and OEM applications, it provides reliable overcurrent protection that keeps distribution panels and motor control centers operating smoothly.

What makes the RT-1492 unique

• Current rating: 20A – Precisely sized for motor feeders, equipment circuits, and three-phase power distribution where a 20-amp limit is ideal.
• Poles: 3-Pole – Suited for three-phase systems, delivering balanced protection across all phases and helping prevent uneven load and fault conditions.
• Circuit Breaker type – A standard breaker solution that integrates cleanly into Siemens panelboards, switchboards, and control panels, supporting safe and controlled shutdowns during faults.

Ideal applications

• Panelboards, switchboards, and control panels in industrial facilities where robust protection and quick isolation are critical.
• Motor control centers and equipment feeders in manufacturing and processing plants.
• Commercial electrical distribution in environments requiring reliable three-phase protection and ease of maintenance.
• OEM assemblies that demand a compact, proven protection device with predictable response in three-phase systems.

How it delivers value in real-world use

By providing precise overcurrent protection across all three phases, the RT-1492 helps safeguard motors, drives, and sensitive electrical equipment from short circuits and overloads. Its dependable operation reduces unplanned downtime, protects wiring and components, and supports safer maintenance routines by ensuring a clear, isolatable fault path when issues arise.

Installation and compatibility notes

Designed for use in Siemens-compatible distribution systems, the RT-1492 simplifies procurement and part replacement within existing installations. When specifying or replacing, confirm that the target panelboard or switchboard supports a 3-pole 20A circuit breaker of this type to maintain consistent performance and safety margins.

Specs at a glance

• Current rating: 20A
• Poles: 3-Pole
• Breaker type: Circuit Breaker

Care, maintenance, and best practices

Follow standard electrical code requirements and the installation manual for torque guidelines, mounting, and wiring practices. Regularly inspect for signs of wear, corrosion, or loose connections in the field, and replace the unit if performance or physical integrity is compromised. For ongoing reliability, use this breaker as part of a well-maintained protection strategy in distribution panels and motor control centers.