The Siemens EH3B050 is a reliable molded case circuit breaker designed to provide efficient circuit protection for commercial and industrial electrical systems. Featuring a thermal magnetic non-interchangeable trip unit, this breaker offers dependable overload and short-circuit protection to ensure safe and stable electrical operation. Its EH frame style and bolt-on mounting configuration provide secure installation, rugged durability, and consistent long-term performance. Engineered for use in 240VAC and 480VAC applications at 50/60Hz, the EH3B050 delivers strong interrupting performance and reliable protection for demanding power distribution environments.

Product Specifications

• Brand: Siemens / ITE
• Model: EH3B050
• Product Type: Molded Case Circuit Breaker (MCCB)
• Frame Type: EH
• Rated Current: 50 Ampere
• Number of Poles: 3 Pole
• Trip Unit Type: Thermal Magnetic Non-Interchangeable
• Mounting Type: Bolt On
• Frequency: 50/60Hz
• Terminal Type: Line and Load End Terminals Standard
• Lug Type: Load End Only
• Application: Commercial and Industrial Power Distribution

Technical Specifications

• Interrupting Capacity: 65kA @ 240VAC
• Interrupting Capacity: 18kA @ 480VAC
• Maximum Voltage Rating: 480VAC
• Operating Temperature Reference: 40°C
• Protection Type: Overload and Short Circuit Protection
• Connection Type: Bolt-On Connection
• Frame Construction: Molded Case Design
• Standard Compliance: Industrial Circuit Protection Standards

Voltage and Ratings

• Rated Operational Voltage: 240VAC / 480VAC
• Frequency Rating: 50/60Hz
• Current Rating: 50A
• Pole Configuration: 3 Pole
• Interrupting Rating at 240VAC: 65 Kiloampere
• Interrupting Rating at 480VAC: 18 Kiloampere
• Maximum Voltage Capacity: 480VAC

Product Data

• Manufacturer: Siemens / ITE
• Product Series: EH Frame Style
• Product Condition Support: New Surplus & Certified Reconditioned
• Warranty: 1 Year In-House Warranty
• Installation Type: Bolt-On Mounting
• Terminal Configuration: Standard Line and Load End Terminals
• Product Use: Electrical Distribution and Protection Systems

Important Note

Product images are intended for identification purposes only and may represent a standard base model configuration. Accessories purchased together with the breaker can be professionally installed at no additional cost when detailed configuration requirements are provided during checkout. Installation, maintenance, and servicing should only be performed by qualified electrical personnel in accordance with applicable electrical standards and manufacturer guidelines. The included one-year warranty covers repairs, labor, replacement parts, and standard shipping associated with recertification, excluding damage caused by misuse, improper handling, or normal wear and tear.

Returns are easy

You may return items within 30 days of delivery for a refund.

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