Siemens CED63A040 - 40 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens CED63A040—a 40 A, 600 V, 3-pole bolt-on molded case circuit breaker designed to deliver reliable branch circuit protection in panelboards and loadcenters. Bred for durable performance in residential, commercial, and light industrial settings, this unit combines a secure mounting design with precise protection to keep electrical systems running smoothly.

• Secure bolt-on mounting provides a rigid bus connection that stays put even in environments with vibration, reducing connection wear and maintenance downtime.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding to both overloads (thermal) and short circuits (magnetic) with fast, predictable tripping behavior.
• OEM-compatible design is engineered to work seamlessly with matching Siemens OEM load centers and panelboards, ensuring proper fit and electrical coordination.
• Versatile protection for various settings suited for residential, commercial, and light industrial applications where dependable overcurrent and short-circuit protection is essential.

What it does for you

• Prevents damage from overcurrent conditions by interrupting fault currents before wiring and devices are harmed.
• Minimizes nuisance tripping while maintaining robust protection—ideal for circuits with startup surges or varying loads.
• Enhances panel reliability in retrofit projects or new installations where a strong, stable connection matters most.

Technical snapshot

• Manufacturer: Siemens
• Part number: CED63A040
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 40 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection in panelboards and loadcenters

Ideal use cases

• Upgrading or expanding panelboards and loadcenters in homes or small commercial spaces where 3-phase protection is required.
• Upfront protection in new installations that demand a rugged, vibration-resistant connection.
• Retrofits where OEM compatibility ensures correct electrical coordination and reliability.

Installation and maintenance tips

• Follow manufacturer torque specifications for bolt-on mounting to ensure a robust, vibration-resistant connection.
• Pair with a Siemens OEM panelboard or load center to maintain correct trip coordination and protection levels.
• Use in circuits where 3-pole protection is needed—common in small commercial equipment racks and three-phase systems.

Choosing the Siemens CED63A040 means opting for a proven, purpose-built solution that prioritizes dependable protection, solid mounting integrity, and compatibility with standard Siemens panel environments. It’s not just a breaker—it’s a steadfast guardian for your electrical infrastructure, ready to handle the demands of residential, commercial, and light industrial applications.