The Siemens EH3B030 is a dependable molded case circuit breaker engineered for efficient protection of electrical distribution systems in industrial and commercial environments. Designed with a thermal magnetic non-interchangeable trip unit, this breaker delivers reliable overload and short-circuit protection to ensure safe and uninterrupted operation. Its EH frame construction and bolt-on mounting design provide secure installation, durability, and consistent performance under demanding operating conditions. Suitable for 240VAC and 480VAC systems operating at 50/60Hz, the EH3B030 offers high interrupting capability and long-term reliability for critical electrical applications.

Product Specifications

• Brand: Siemens / ITE
• Model: EH3B030
• Product Type: Molded Case Circuit Breaker (MCCB)
• Frame Type: EH
• Rated Current: 30 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: 30A
• 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 provided for identification purposes only and may represent a standard base model. Accessories purchased together with the breaker can be professionally installed at no additional cost when configuration requirements are specified during checkout. Installation, maintenance, and servicing should only be performed by qualified electrical personnel in accordance with local electrical codes and manufacturer guidelines. The included one-year warranty covers repairs, labor, parts, and standard shipping required for recertification, excluding damage caused by misuse, improper installation, or normal wear and tear.

Returns are easy

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

FREE Shipping on orders over $149.

My Circuit Breakers offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

Same Day Shipping

We strive to ship out your items within one business day.

In rare circumstances, My Circuit Breakers may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

My Circuit Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer). Extended warranties are available upon request.