Siemens NGG2B090L N Contactor Two Pole 90 Amp 480 Volt

Siemens NGG2B090L N is a two-pole molded-case circuit breaker (MCCB) rated for 90 A, designed for distribution and feeder protection in 480 V systems. The unit includes line and load lugs and is UL489-listed for use in standard low-voltage panels. It is rated for a maximum voltage of 600Y/347 V AC and delivers a NEMA interrupt rating of 25 kA at 480 V, with a selectable interrupt range of 14–25 kA across different voltage configurations. The 50/60 Hz capable device has a continuous current rating of 90 A at 40°C, aligning with Siemens NGG2B line performance. This model, part of the NGG2B family, provides thermal-magnetic protection to interrupt fault currents quickly, helping protect upstream equipment and wiring from overcurrent conditions while maintaining a compact 2-pole footprint suitable for dense panel layouts. It belongs to Siemens’ low-voltage molded-case breaker line and is commonly used to protect feeders and branch circuits in commercial and industrial electrical installations.