MB21 Replacement Part Ordering Information

P-MB21B-PS

(F-MB21B-R) 110-240 V AC power supply unit, 300 W max, for Quad PSU version of F-MB21B-R

F-MB21X-FAN

(F-MB21X-R) Replacement fan and station alarm unit

P-MB21X-PS

(F-MB21X-R) Replacement 100-240 V; 47-63Hz AC power supply unit, 600 W max