ETP4890-B3A1 power converter with 3xR4830G/R4830N 1xSMU01C

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ETP4890-B3A1 subrack composed by 3xR4830G1 or R4830N2 1xSMU01C

3U height

Voltage range of 85 V AC to 300 V AC

Output: -48V, 90A Max

Maximum output power: 4815W

Supports electronic labels

Display in English and Chinese and user operations on the Liquid crystal display (LCD)

Rectifiers and the SMU are hot-swappable

Apply for Huawei OLT, Huawei OSN, Huawei Router, and Huawei Switch.


ETP4890-B3A1 has three rectifier slots, that can support R4830G1 and R4830N2, three rectifiers are configured by default. It is an embedded telecom power system that supplies power to -48 V DC communications equipment with a maximum current of 90 A.

Tech Specs
Technical Specifications
Category Item Specification
AC input Input system 220 V AC single-phase
Input frequency Frequency range: 45-66 Hz; nominal frequency: 50 Hz or 60 Hz
Power factor (PF) ≥ 0.99 (rated input, with loads)
DC output Output voltage range -42 V DC to -58 V DC
Default output voltage -53.5 V DC
Max. output power 4815 W
Regulated voltage precision ≤ ±1% (The output voltage is within 53.5 V DC±0.1 V DC, with 50% load percentage.)
Peak-to-peak noise voltage ≤ 200 mV (under rated input voltage and load power)
Noise weighting ≤ 2 mV (300 Hz to 3400 Hz, input voltage ≤ 264 V AC)
Unbalance of load sharing ≤ ±5% (with 50% to 100% loads)
Structure Dimensions (H x W x D) 130.5 mm x 442 mm x 255 mm
Weight ≤ 13 kg (including rectifiers)
Protection level IP20
Installation mode Equipped with mounting ears to adapt to 19-inch cabinets
Cable routing AC input cables are routed in from the upper left side, and DC output cables are routed out from the lower right side
Maintenance mode Maintained from the front
Heat dissipation mode Nature heat dissipation
Subrack 3 U power system
Rectifier A maximum of three R4830G1s, or R4830N2s
Surge protective device (SPD) AC SPD: Nominal discharge current: 20 kA, maximum discharge current: 40 kA (8/20 µs)
DC SPD: Differential mode: 10 kA; common mode: 20 kA (8/20 µs)
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