Siemens | SIE-5640-12-BF-80TM | Circuit Breaker | 80A

Introducing the Siemens SIE-5640-12-BF-80TM 80A circuit breaker — a trusted, purpose-built solution for protection, compatibility, and reliable service in maintenance, retrofit, and replacement projects. This unit is designed to align with existing Siemens systems, delivering a seamless fit when you’re refreshing or upgrading electrical protection without rewiring or panel changes.

Why this specific breaker matters
The SIE-5640-12-BF-80TM carries an exact 80-ampere rating and uses Siemens’ proven design language to ensure predictable protection and trip performance. When shopping for replacements, the part number is the most accurate reference for compatibility, so you can confirm you’re selecting the right model for your panel or switchgear configuration.

Key use cases

• Maintenance: keep critical electrical systems protected with a reliable, in-kind replacement.
• Retrofit: upgrade or modernize protection in older panels while preserving electrical characteristics.
• Replacement: quick, drop-in substitute for failing or obsolete breakers that match the same specifications.

Who benefits most

• Facilities engineers maintaining industrial or commercial electrical infrastructure.
• Electrical contractors performing panel retrofits or service calls.
• Maintenance teams that require dependable spares to minimize downtime.

What problem it solves

• Eliminates guesswork by offering a precise compatibility reference through the dedicated part number SIE-5640-12-BF-80TM.
• Prevents protection gaps in aging or upgraded panels by matching amperage and form-factor exactly to the original installation.
• Reduces downtime during service events with a straightforward, predictable replacement process.

Specifications at a glance

• Amperage: 80A
• Part number: SIE-5640-12-BF-80TM
• Applications: maintenance, retrofit, replacement where exact spec matching is required

Practical guidance for a successful replacement

Before ordering, verify fit and ratings against the current panel or equipment. Use the part number SIE-5640-12-BF-80TM as the primary compatibility reference, and compare with the existing breaker’s amperage, trip characteristics, and mounting type. When installing, ensure the power is fully shut off and follow all local safety protocols. Keep a spare on hand for critical infrastructure to minimize downtime during routine maintenance or unexpected outages.

Siemens reliability, tailored for your needs

Choosing the Siemens SIE-5640-12-BF-80TM 80A circuit breaker means investing in a component designed for durability, consistent performance, and straightforward compatibility within Siemens-driven electrical systems. It’s an exact-fit solution that helps you maintain protection standards without unnecessary complexity.