Delta ESR-48/40AC Compact Switch-Mode Telecom Rectifier Module (-48V 40A 2000W)
Delta ESR-48/40AC -48V 40A 2000W compact telecom rectifier with short depth for tight enclosure installations.
DeltaModel: ESR-48/56BC
Delta ESR-48/56BC Wide-Temperature Telecom Switch-Mode Rectifier Module (-48V 56A 3000W)
The Delta ESR-48/56BC is a ruggedized 48V 56A high-reliability telecom switch-mode rectifier module rated at 3000W, engineered for extreme temperatures and featuring enhanced surge immunity.
Pricing is confirmed by project configuration and quantity
Request a quote- Nominal Output Voltage
- -48V DC (Adjustable: -42V to -58V)
- Rated Output Current
- 56A Continuous Output
- Rated Output Power
- 3000W
- AC Input Range
- 85V to 300V AC (Nominal 220VAC)
- Operating Temperature Range
- -40°C to +75°C (Full load to 55°C)
- Protection & Mounting
- 6kV Surge Immunity / Hot-Swap
What this product is
What this product is
This unit is primarily deployed within Delta outdoor enclosures and indoor telecom power racks, providing high-purity -48V DC power with superior lightning surge immunity.
What problem it solves
Solves outdoor base station vulnerabilities such as extreme ambient heat and grid lightning surges causing premature rectifier failure, ensuring high uptime for unattended sites.
Who and where it is for
Engineered for 4G/5G outdoor integrated cabinets, remote border station towers, highway surveillance power systems, and utility substation communications.
Core advantages
- Extreme Temperature Tolerance: Operates reliably from -40°C to +75°C, sustaining 100% full rated power up to 55°C ambient.
- Enhanced Lightning Surge Immunity: Integrated multi-stage surge protection circuit withstands up to 6kV common and differential mode transients.
- Advanced Digital DSP Control: Embedded DSP delivers precise autonomous load-sharing, sub-millisecond dynamic response, and low THD.
- High Power Density Compact Footprint: Optimizes subrack space, maximizing room for backup batteries and transmission hardware.
Technical specifications
| Key specifications | Value |
|---|---|
| Nominal Output Voltage | -48V DC (Adjustable: -42V to -58V) |
| Rated Output Current | 56A Continuous Output |
| Rated Output Power | 3000W |
| AC Input Range | 85V to 300V AC (Nominal 220VAC) |
| Operating Temperature Range | -40°C to +75°C (Full load to 55°C) |
| Protection & Mounting | 6kV Surge Immunity / Hot-Swap |
Applications
01
4G/5G Telecom Cell Sites & Distributed Power Systems
02
Carrier Core Network Facilities & IDC DC Plants
03
Industrial Automation & Utility Substation DC UPS
Frequently asked questions
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