Cutler Hammer RF3040 - 40A, 600VAC, Circuit Breaker

The RF3040 from Cutler Hammer delivers dependable protection for electrical systems that demand reliable overcurrent control. Rated for 40 A and up to 600 VAC, this circuit breaker is engineered to safeguard wiring, equipment, and operators in demanding industrial and commercial environments.

Ideal for panelboards, switchboards, control panels, and OEM equipment, the RF3040 provides precise interruption of fault currents, helping to minimize damage from overloads and short circuits while keeping downtime to a minimum. Its robust design is suited for tough distribution networks and motor control centers where safe operation is non-negotiable.

Key advantages at a glance

• Current rating: 40 A for steady protection on medium-duty loads and motor feeders
• Voltage rating: 600 VAC compatible with high-voltage distribution panels and industrial circuits
• Versatile application fits panelboards, switchboards, control panels, and OEM configurations
• Reliability in harsh environments designed to maintain protective performance in continuous operation
• Safety-focused operation helps isolate faults quickly to protect downstream equipment and personnel

Use cases span from safeguarding feeders to motors in machine centers to serving as the primary overcurrent device in distribution panels across manufacturing floors and facility infrastructure. OEM integrators can rely on the RF3040 to deliver consistent protection across multiple circuits, while engineers appreciate its straightforward integration into existing Cutler Hammer ecosystems.

Specifications at a glance
Current rating: 40 A
Voltage rating: 600 VAC
Breaker type: Circuit Breaker

Practical installation notes: confirm compatibility with your panel rating and surrounding components, follow standard electrical installation practices, and replace like-for-like devices to maintain system parity. The RF3040 is a purpose-built choice for engineers and technicians who need durable, predictable overcurrent protection in distribution panels and motor control centers.