Siemens ED61B050 - 50 A, 600 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Siemens ED61B050 is a 50 A, 600 V, 1-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built to endure the demands of residential, commercial, and light industrial environments, this breaker combines rugged construction with precise protection characteristics you can count on when it matters most.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, helping maintain consistent electrical contact and reducing the risk of loosening over time.
• Thermal-magnetic trip unit delivers stable, repeatable protection across a range of operating conditions. The thermal element manages sustained overloads, while the magnetic element responds quickly to high-energy faults for immediate isolation.
• OEM-compatible design is engineered to work seamlessly with matching Siemens load centers and panelboards, ensuring a smooth replacement path and predictable performance.
• Versatile, single-pole protection is ideal for a variety of circuits in homes, small businesses, and light industrial setups where reliable overcurrent and short-circuit protection is essential.

Technical snapshot

• Manufacturer: Siemens
• Part Number: ED61B050
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 50 A
• Voltage Rating: 600 V
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal applications and scenarios

Use the ED61B050 when you need reliable protection for individual branch circuits within panelboards and load centers. It’s a practical choice for:

• New installations in residential panels or light commercial distribution boards
• Replacing aging or failed breakers in Siemens OEM panelboards
• Upgrading protection on circuits that require secure bolt-on mounting in areas with vibration or frequent equipment movement

Why the bolt-on design matters

The bolt-on mounting delivers a sturdier connection to the bus bars, reducing movement and arcing risks in demanding electrical environments. This translates to longer service life, fewer nuisance trips, and more predictable performance under load transients.

Installation and safety notes

• Power must be de-energized before installation. Follow local codes and lockout/tagout procedures.
• Verify that the panelboard is rated for 600 V and that the 50 A rating matches the circuit conductor sizing and protection requirements.
• Use the manufacturer’s guidelines for bolt torque and mounting procedures, and consult a licensed electrician if you’re unsure about compatibility or safety.