ETP48400-C6A2

AC input

Input system

220/380 V AC three-phase four-wire, compatible with 220 V AC single-phase

Input frequency

45–66 Hz (rated frequency: 50 Hz or 60 Hz)

Power factor (PF)

≥ 0.99 (rated input, with loads)

Total harmonic distortion (THD)

≤ 10% (50% to 100% loads; Vin = 208 V AC, 220 V AC, 230 V AC, 240 V AC)

DC output

Output voltage range

–42 V DC to –58 V DC

Default output voltage

–53.5 V DC

Max. output power

24 kW

Regulated voltage precision

≤ ±1% (The output voltage is within –53.5±0.1 V, with 50% load percentage)

Peak-to-peak noise voltage

≤ 200 mV (under rated input voltage and load power)

Phone noise weighting voltage

≤ 2 mV (300–3400 Hz, input power ≤ 264 V AC)

Unbalance of load sharing

≤ ±5% (50%–100% load)

AC input protection

AC input overvoltage protection threshold

≥ 300 V AC

AC input overvoltage recovery threshold

≥ 290 V AC

AC input undervoltage protection threshold

≤ 80 V AC

AC input undervoltage recovery threshold

≤ 90 V AC

DC output protection

DC output overvoltage protection threshold

–58.5 V DC to –60.5 V DC

• If overvoltage occurs inside a rectifier, the rectifier locks out.
• If the external voltage is greater than –63 V DC for more than 500 ms, the rectifier locks out.

DC surge protection

10 kA (8/20 μs) in differential mode; 20 kA (8/20 μs) in common mode

Safety and regulatory design

IEC/EN60950-1 and GB4943