Input Input range 85 to 264 Vac; 120 to 300 Vdc (limited to 300 Vdc in medical applications) Frequency 47 to 63 Hz (iMP1 47 to 440 Hz) Inrush current 40 A peak maximum (soft start) Efficiency Up to 85% @ full case load Power Factor 0.99 typ. meets EN61000-3-2 (n/a @ 440 Hz) Turn-on time AC on 2.0 sec typ., inhibit/enable 150 ms typical Programmable delay; 50 ms internal turn-on delay (Dual Output only) EMI filter CISPR 22/EN55022 Level “B”** Leakage current 300 µA max. @ 240 Vac; 47 - 63 Hz Radiated EMI CISPR 22/EN55022 Level “B”** Holdover storage 20 ms minimum (independent of input Vac) additional 34 ms holdover storage with optional HUP module (SEMI F47 compatible). For iMP4 15 ms (low-line), 10 ms (high-line) AC OK > 5 ms early warning min. before outputs lose regulation Full cycle ride thru (50 Hz) (n/a on iMP4 > 750 W @ 90 Vac) Harmonic distortion Meets EN61000-3-2 Isolation Meets EN60950 and EN60601 Input to output: 4000 Vac; input to ground: 1500 Vac; output to ground: 400 Vdc Meets 1 MOPP Primary to ground, 2 MOPP Primary to Secondary Global inhibit / enable TTL, Logic “1” and Logic “0”; configurable Input fuse (internal) iMP4: 16 A; iMP8: 20 A; iMP1: 25 A (both lines fused