General Electric NSB THN3366 Molded Case Circuit Breaker (MCCB) is a GE NSB-series protective device identified by the model THN3366. Sold as EA (each), this MCCB is designed to interrupt current in electrical distribution circuits to protect wiring and equipment in panels. As part of GE's NSB lineup, the THN3366 serves as a compact, molded‑case breaker suitable for replacing or upgrading standard protection in a variety of industrial and commercial electrical installations.
