ETP48400-C4B2

Environmental specifications

Operating temperature

–40°C to +65°C

(When the ambient temperature ranges from –33°C to +55°C, the power system works properly. When the ambient temperature ranges from 55°C to 65°C, the output power linearly derates by 20%. When the ambient temperature is –40°C, the power system can start properly after the AC power supply is connected. There is no requirement on the output voltage waveform at startup.)

Transport temperature

–40°C to +70°C

Storage temperature

–40°C to +70°C

Operating humidity

5%–95% RH (non-condensing)

Transportation humidity

5%–95% RH (non-condensing)

Storage humidity

5%–95% RH (non-condensing)

Altitude

0–4000 m

When the altitude ranges from 2000 m to 4000 m, high temperature derating applies and the operating temperature decreases by 1°C for each additional 200 m.

Others

There is no conductive dust, corrosive gas, or explosion hazard.

Dust, corrosive substances, pests, molds, and other indicators should be controlled in accordance with Class 3.1 requirements in ETSI EN 300 019-1-3 (V2.3.2 or a later version).

AC input

Input frequency

45–66 Hz; rated frequency: 50 Hz/60 Hz

Power factor

≥ 0.99 (rated voltage input, 50%–100% load)

DC output

Output voltage range

• 48 V mode: –42 V DC to –58 V DC (–53.5 V DC by default)
• 57 V mode: –48 V DC to –57 V DC (–57 V DC by default)

Regulated voltage precision

≤ ±1%

Peak-to-peak noise voltage

≤ 200 mV (0–20 MHz)

Psophometrically weighted noise voltage

≤ 2 mV (meets this standard at rated output voltage points of 53.5 V and 57 V)

Current sharing imbalance

≤ ±5% (20%–100% load)

AC input protection

AC input overvoltage protection threshold

≥ 300 V AC

AC input overvoltage recovery threshold

290–300 V AC

AC input undervoltage protection threshold

≤ 80 V AC

AC input undervoltage recovery threshold

80–90 V AC

DC output protection

DC output overvoltage protection threshold

Range: –58.5 V DC to –60.5 V DC

EMC specifications

Conducted emission (CE)

• AC port: EN 55032, Class B
• DC port: EN 55032, Class A¹
• Signal port: EN 55032, Class B

Radiated emission (RE)

EN 55032, Class B

Harmonic current

EN 61000-3-12

Voltage fluctuation and flicker

EN 61000-3-11

Electrostatic discharge (ESD)

IEC 61000-4-2

Enclosure port: contact discharge of 6 kV and air discharge of 8 kV; signal port: contact discharge of 2 kV

Electrical fast transient (EFT)

IEC 61000-4-4

AC and DC power ports: 2 kV

Radiated susceptibility (RS)

IEC 61000-4-3

10 V/m

Conducted susceptibility (CS)

IEC 61000-4-6

Power port: 10 V; signal port: 3 V

Surge susceptibility

IEC 61000-4-5

AC and DC power ports: 2 kV (8/20 µs) in differential mode and 4 kV (8/20 µs) in common mode

Voltage dip

Complies with IEC 61000-4-11.

Others

Mean time between failures (MTBF)

200,000 hours (at 25°C)

Structure

Power system dimensions (H x W x D)

175 mm x 482.6 mm x 330 mm

Weight

≤ 19 kg (excluding rectifiers)

IP rating

IP20

Installation mode

Installed in a 19-inch rack

Cabling mode

Routed in and out from the front

Maintenance mode

Maintained from the front

Cooling mode

Free cooling