Siemens ED43B015 - 15 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens ED43B015 is a robust 15A, 480V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built to perform in residential, commercial, and light industrial environments, this unit provides reliable protection where electrical systems demand consistent, predictable response.

• Secure bolt-on mounting ensures a rigid, vibration-resistant bus connection, minimizing movement and maintaining a solid electrical path even in equipment that experiences vibration or thermal cycling.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining thermal overload sensing with rapid magnetic response for short circuits, helping to prevent damage to wiring and connected devices.
• OEM-compatible design is engineered to pair with matching Siemens OEM load centers and panelboards for a seamless, plug-and-play integration that reduces installation guesswork.
• Versatile, multi-environment application suited for residential service panels, commercial distribution boards, and light industrial electrical distributions.

Technical specifications

• Manufacturer: Siemens
• Part Number: ED43B015
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 15A
• Voltage Rating: 480V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why this matters in real-world use: with a bolt-on mounting approach, you get a secure connection that resists loosening under vibration and routine maintenance, reducing downtime and rework. The thermal-magnetic trip mechanism balances dependable protection with selective tripping behavior, helping protect conductors and downstream devices without unnecessary interruptions.

Who should consider the Siemens ED43B015? electricians and facilities engineers upgrading or spec’ing new panelboards, contractors equipping residential or light commercial panels, and maintenance teams seeking a dependable, OEM-compatible breaker that aligns with Siemens load centers for consistent performance.

Practical tips for use:

• Verify that the panelboard is compatible with 3-pole bolt-on molded case breakers and that the ED43B015’s 15A rating matches the circuit being protected.
• When replacing an older breaker, ensure the replaced unit and the panelboard share the same family or mounting design to avoid fitment issues.
• Install by a qualified electrician, and confirm proper torque and alignment of the bolt-on mounting to maintain a solid bus connection.
• Keep in mind the 480V rating—ensure downstream equipment and wiring insulation are rated accordingly for safe operation.

In short, the Siemens ED43B015 combines secure installation, precise protection, and OEM-ready compatibility to deliver reliable electrical safety for a wide range of panelboards and loadcenters. If you’re stocking replacement parts or outfitting a new installation, this 3-pole 15A bolt-on circuit breaker is a dependable choice that prioritizes protection, compatibility, and long-term performance.