(Package of 6 Pieces) Noark Miniature Circuit Breaker (MCB), UL 489, B1H series, 2A rated current, D-curve - 1-pole (1P) - 10kA (120Vac) / 10kA (240Vac) interrupting rating - 277Vac/480Vac (Y) rated voltage, box lug connections - DIN rail mounting (35mm width), equivalent to 1000754