Siemens ED43B045L — 45A 3-Pole 480V Bolt-On Molded Case Circuit Breaker (MCCB)

The Siemens ED43B045L is a 45-amp, 3-pole, 480V thermal magnetic molded case circuit breaker (MCCB) with a bolt-on mounting style. Part of Siemens' ED frame series, this breaker is built for reliable overcurrent protection in three-phase commercial and industrial distribution systems.

Key Specifications

• Part Number: ED43B045L
• Brand: Siemens
• Amperage: 45A
• Poles: 3-Pole
• Voltage Rating: 480VAC
• Frame: ED Frame
• Mounting: Bolt-On
• Trip Type: Thermal Magnetic
• Standards: UL Listed, CSA Certified

Features & Benefits

• Bolt-on mounting for secure, vibration-resistant installation
• Thermal magnetic trip for accurate overload and short-circuit protection
• Compact ED frame suitable for space-constrained panelboard applications
• 480VAC rating ideal for three-phase industrial motor and equipment circuits
• Siemens quality engineering for long service life in demanding environments

Common Applications

The ED43B045L is commonly used to protect motor circuits, HVAC equipment, and three-phase branch circuits in commercial and light industrial panels operating at 480V.