Siemens B290R 90A 2-Pole 240 V Circuit Breaker Potential Transformer

Siemens B290R 90A 2-Pole 240 V Circuit Breaker — Part Number B290R The Siemens B290R is a dependable protection device built for demanding electrical environments. With a 90 A current rating, a two-pole design, and a 240 V operating voltage, it provides robust, reliable circuit protection for critical power distribution in commercial and industrial panels. This breaker is designed to work seamlessly within protection schemes that involve potential transformers (PTs), making it a practical choice for metering, relay protection, and system monitoring applications. Key features - Current rating: 90 A — precise protection for medium-load circuits without frequent nuisance tripping - Poles: 2-pole configuration — ensures simultaneous disconnection of both conductors for enhanced safety - Voltage rating: 240 V — suitable for standard 240 V distribution networks in commercial settings - Part number: B290R — a recognized Siemens protection device designed for dependable performance in Siemens-compatible panels - PT compatibility: designed to integrate with potential transformers used in protection and metering schemes, helping deliver accurate fault indication and safe system isolation Why this 2-pole, 240 V breaker matters - Safe, reliable disconnect: The dual-pole design guarantees both live conductors are disconnected together, reducing arc risk and improving personnel safety during maintenance or fault conditions. - Targeted protection for medium-load circuits: A 90 A rating is well-suited for feeders, distribution branches, and equipment circuits that require solid protection without constant trips in normal operation. - Streamlined integration with PT-based protection: For panel configurations employing potential transformers for metering or relay protection, this breaker pairs cleanly with your protection scheme, aiding accurate fault detection and system monitoring. Ideal use cases - Commercial electrical panels serving office buildings, retail spaces, and light manufacturing - Industrial distribution boards where reliable protection for feeders and motors is required - Panels that rely on potential transformers for metering, relaying, or diagnostic instrumentation - Replacement or upgrade in Siemens-compatible switchgear where a B290R fits the existing protection strategy What to expect in practice - Quick, predictable operation under fault conditions, minimizing damage to downstream equipment - Durable construction designed for repeated switching in demanding environments - Compatibility with standard Siemens accessories and protective relay ecosystems, making it easier to maintain a cohesive protection strategy Practical tips - Check panel compatibility: Verify that your Siemens protection scheme is designed to accommodate the B290R 90A 2-Pole 240 V configuration for optimal performance. - Use in PT-enabled protection schemes: When paired with potential transformers, anticipate improved fault indication and more accurate monitoring data for your electrical system. - Plan for safe maintenance: Leverage the two-pole design to ensure both lines are de-energized simultaneously during service work. This Siemens B290R 90A 2-Pole 240 V Circuit Breaker delivers precise, reliable protection for a range of commercial and industrial applications, with thoughtful design that supports protection schemes reliant on potential transformers. If you’re looking for a dependable, Siemens-compatible solution that aligns with PT-based metering and relaying, this B290R is a informed, practical choice.