Siemens | EF2B035L | Circuit Breaker | 35A | 2-Pole | 600V | Bolt-On

Meet the Siemens EF2B035L Circuit Breaker — a purpose-built protection device engineered for dependable performance in industrial and commercial panels. This 2-pole, 35A breaker is rated for up to 600V and features a bolt-on mounting that delivers a solid, vibration-resistant connection in compatible Siemens enclosures.

Designed with maintenance, retrofit, and replacement projects in mind, the EF2B035L is a precise match when your goal is to restore proper protection without compromising panel integrity. The part number itself is the best reference for compatibility, so verify EF2B035L against your panel’s labeling to ensure a perfect fit.

Key benefits

• Secure bolt-on mounting: Ensures a robust mechanical connection that stays seated under normal operating vibration and routine maintenance.
• Two-pole design: Protects two conductors in 600V circuits, ideal for 2-pole protection in industrial feeders and controlled loads.
• 35A protection: Suitable for motor circuits, branch feeders, and other mid-range protection needs where reliable interruption is critical.
• Siemens EF2B family: Consistent performance, engineering compatibility, and straightforward cross-reference in compatible panels.
• Clear reference for replacements: The EF2B035L designation provides a precise match for retrofit and upgrade projects.

Specifications at a glance

• Amperage: 35A
• Poles: 2-Pole
• Voltage rating: 600V
• Mounting: Bolt-On
• Part number: EF2B035L

Who this is for

electricians performing panel upgrades, facility managers overseeing electrical distribution in commercial or light industrial environments, and technicians replacing aging or failed breakers in Siemens panels. If your system requires a bolt-on, 2-pole, 35A protection device for up to 600V operation, the EF2B035L is designed to meet those exacting specs.

Installation and compatibility notes

Before ordering, confirm fit and ratings against your panel labeling. The EF2B035L is the preferred reference for compatibility in Siemens bolt-on breaker slots. If your panel requires an EF2B-series device, this breaker should drop in with the expected electrical characteristics and mounting geometry.

Practical use cases include protecting two hot legs in a 600V distribution path, upgrading an older panel where EF2B breakers are specified, or swapping in a like-for-like replacement to restore trusted Siemens performance after maintenance or retrofit projects.