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Tonglishengda SD2448-25 Rectifier Module Official Product View 2
TonglishengdaModel: Tonglishengda SD2448-25 Rectifier Module

Tonglishengda SD2448-25 Telecom Switch-Mode Rectifier (-48V 25A 1200W)

The Tonglishengda SD2448-25 is an industrial switch-mode rectifier module delivering -48VDC / 25A (1200W) continuous power, engineered with resonant soft-switching topology, micro-controller supervision, and high efficiency for telecom access and security nodes.

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Rated Output Power
1200 W
Nominal Output Voltage
-48VDC (-42V ~ -58V) VDC
Rated Output Current
25 A
Output Voltage Range
-48VDC (-42V ~ -58V) VDC
AC Input Voltage
90 ~ 280 VAC
Peak Conversion Efficiency
93.0%

What this product is

What this product is

Compact -48V 25A switch-mode telecom DC power rectifier module.

What problem it solves

Supplies dependable, low-noise regulated DC power for mission-critical enterprise network cabinets and edge sites.

Who and where it is for

Standard 19-inch DC subracks, industrial cabinets, and broadband edge nodes.

Core advantages

  • Continuous and stable output of -48V 25A (1200W)
  • Wide input voltage adaptation range of 90~280VAC
  • Supports N+1 autonomous current-sharing hot-swappable expansion
  • Intelligent temperature-controlled stepless fan speed regulation for low noise and long service life

Technical specifications

Key specificationsValue
Nominal Output Voltage-48VDC (-42V ~ -58V) VDC
Output Voltage Range-48VDC (-42V ~ -58V) VDC
Rated Output Power1200 W
Physical Dimensions132 × 85 × 260 mm
Peak Conversion Efficiency 93.0%
AC Input Voltage90 ~ 280 VAC
Operating Temperature Range-25°C ~ +65°C
Rated Output Current25 A
Output Power Factor PF> 0.99

Applications

01

Telecom 4G/5G macro cellular base stations and distributed remote power sites

02

Enterprise-grade cloud data center mission-critical -48V DC power distribution lineups

03

Utility power grid dispatch centers and high-voltage substation DC switchgear rooms

04

Railway transit signaling, automated train control, and communications equipment rooms

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