Siemens | EH2B040 | Circuit Breaker | 40A | 2-Pole | 480V | 14kA

Meet the Siemens EH2B040 Circuit Breaker — a purpose-built safety device designed for reliable protection in industrial and commercial electrical systems. With a 40-amp rating, a 2-pole design, 480-volt operation, and a robust 14kA interrupting capacity, this breaker delivers precise protection for feeders and equipment in demanding environments.

Why choose EH2B040?

• Official Siemens part number EH2B040 ensures exact fit, electrical characteristics, and compatibility with Siemens panels and compatible enclosures.
• High fault-current protection: 14kA interrupting rating provides robust clearing of faults, reducing downstream damage and downtime.
• Compact 2-pole design simplifies wiring and mounting in tighter spaces while protecting two hot legs with a common trip.
• 480V operation makes it suitable for common industrial distribution systems and equipment fed at higher voltages.
• Maintenance, retrofit, and replacement ready: specifically recommended for upgrades or replacements where matching specs are required.
• Clear compatibility guidance: the part number EH2B040 is the best reference for matching your current panel or equipment configuration; verify fit and ratings before ordering.

What problems does this solve?

• Facilitates quick replacement of a failed breaker in Siemens-built or compatible electrical systems to minimize downtime.
• Ensures protective device matches existing electrical ratings and trip characteristics to maintain proper system protection coordination.
• Provides a reliable spare for planned maintenance, reducing the risk of extended outages.

Ideal for:

• Facility managers, electricians, and OEM technicians performing maintenance on Siemens-compatible panels.
• Retrofits where upgrading to compatible trip characteristics or higher fault-current protection is necessary.
• New installations within 480V distributed power networks requiring a 2-pole, 40A protective device.

Installation and care tips:

• Before ordering, confirm fit and ratings against your panel labeling and existing breakers; the EH2B040 reference helps ensure compatibility.
• During installation, shut off main power and follow standard electrical safety practices; use insulated tools and verify voltage with a tester before handling connections.
• Keep a spare EH2B040 on hand for routine maintenance; proper documentation with the part number makes future replacements straightforward.

Engineered for reliable protection and long service life in demanding environments, the Siemens EH2B040 is a dependable choice for safeguarding your 480V circuits while simplifying upgrades, maintenance, and replacements.