ABB / General Electric SKLB36BB1200 Molded Case Circuit Breaker-Frame Only

Yes, GE Spectra RMS circuit breakers with solid-state electronic trip units require a front-mounted rating plug. This SK1200 frame uses an SRPK1200 series rating plug to establish its continuous operating amperage.

For front connection, this SK1200 frame accepts mechanical lug kits such as the TCAL121 or TCAL125. The specific kit required depends on your conductor material and wire size requirements.

LSI means the MicroVersaTrip Plus electronic trip unit provides adjustable Long-Time, Short-Time, and Instantaneous overcurrent protection. It allows precise coordination in distribution systems but does not include Ground Fault protection.

Visual trip targets on the electronic trip unit display which specific fault condition (Long-Time, Short-Time, or Instantaneous) caused the breaker to open. This allows electricians to quickly diagnose the root cause of the fault before resetting the system.

Yes, GE Spectra RMS molded case circuit breakers feature an ambient insensitive electronic trip system that makes them suitable and approved for reverse feed applications.

The GE Spectra RMS series is obsolete. ABB offers the Tmax XT7 circuit breaker as the modern replacement, which installs into existing GE enclosures using a designated retrofit kit.

Following ABB's acquisition of GE Industrial Solutions, legacy GE circuit breakers may now carry the ABB brand name. The products remain electrically and physically identical, sharing the exact same UL listings and mounting dimensions.