Product Overview
The Delta DPR48/50C is a 3000W, -48 VDC hot-swappable rectifier module designed for telecom power systems and DC power plants that use the Delta DPR rack-mount platform. As authorized distributors, we supply the DPR48/50C as a drop-in replacement or expansion module for existing Delta DPR-series rectifier shelves, DPS/ESR-48V power cabinets and -48V DC bus installations across telecom base stations, edge data centres and industrial control sites worldwide.
If you are evaluating the DPR48/50C alongside Huawei R4850N1/N2, Vertiv R48-3000E3 or Eltek Flatpack2 48/3000 HE modules, the decision is usually driven by your existing cabinet platform. The DPR48/50C fits Delta DPR-series shelves and ESR-48V systems; it does not cross-fit Huawei TP48xxx, Vertiv NetSure 731 or Eltek Flatpack2 backplanes. For a full brand-by-brand mapping, see our 48V rectifier cross-reference chart.
Key features
- Output: -48V DC, 50A class (3000W per module)
- Hot-swap: Yes — zero service interruption during module replacement
- Input range: Wide-range AC input (90–300 VAC class), suitable for unstable grid conditions common in Africa, Middle East and South America
- Power factor: Active PFC, PF ≥ 0.99 at rated load; low THD
- Cooling: Forced-air with intelligent fan speed control
- Monitoring: Digital control with CAN/RS485 communication to Delta supervision controller
- Parallel operation: Multiple DPR48/50C modules share load current evenly within a DPR shelf
- Protections: Output OVP, OCP, OTP, short-circuit; input surge protection
- Efficiency: High-efficiency class (exact peak value from datasheet on request)
Specifications (typical)
The table below summarises the published specification envelope for the Delta DPR48/50C. For the exact datasheet and factory test report, request an RFQ from our team — we provide original documentation with every shipment.
| Parameter | Value |
|---|---|
| Model | Delta DPR48/50C |
| Output voltage | -48 VDC (adjustable float range, typically 42–58 VDC) |
| Output current | 50 A class |
| Output power | 3000 W per module |
| Input voltage | 90–300 VAC (wide range) |
| Input frequency | 45–65 Hz |
| Power factor | ≥ 0.99 at ≥50% load (active PFC) |
| Efficiency (typical) | High-efficiency class (exact value from datasheet on request) |
| Cooling | Forced-air, variable-speed fan |
| Hot-swap | Yes (make-and-break contacts) |
| Communication | CAN bus / RS485 to Delta controller |
| Compatible shelves | Delta DPR series, DPS / ESR-48V systems |
| Operating temperature | Typically -40 °C to +75 °C (derated above 55 °C, confirm per datasheet) |
| Mounting | Module-insert into DPR shelf backplane; 19-inch rack compatible |
| Certifications | CE, and region-specific marks (confirm per batch) |
| Warranty | Standard manufacturer warranty; BS Comtec provides full documentation |
Cabinet compatibility
The DPR48/50C is designed for Delta’s DPR-series rectifier shelves and DPS/ESR-48V power systems. It is not mechanically or electrically compatible with:
- Huawei TP48200B / TP48300B / TP48400B / TP48600B (uses R4850 series)
- Vertiv NetSure 731 A41 / A91 (uses R48-3000E3 modules)
- Eltek Flatpack2 shelves (uses Flatpack2 48/3000 HE modules)
- ZTE ZXD2400 systems (uses ZXD2400 modules)
If your site already runs a Delta DPR shelf, the DPR48/50C is a direct plug-in. If you are migrating from another brand or building a greenfield site, choose the rectifier platform to match the cabinet and supervision controller you are standardising on. Our R4850 vs R48 selection guide covers the decision logic for the two dominant platforms; for Delta sites, the logic is the same — match the brand to the cabinet.
Typical applications
- Telecom base stations: -48V DC bus powering BTS radios, baseband units and transmission equipment in macro and small-cell sites
- Data centre standby: -48V DC UPS for edge data centres and telecom co-location rooms
- Industrial control: -48V DC supply for PLC cabinets, SCADA remote terminals and process control panels
- Solar-hybrid power systems: Rectifier charging stage in off-grid and weak-grid telecom installations with battery storage
The DPR48/50C delivers high power density in the 3000W class — ideal for sites where rack space is at a premium and each module must carry significant load. For lower-power sites (1440W class per module), the Delta DPR48/30G may be a better fit.
Ordering from BS Comtec
As authorized Delta distributors, we supply the DPR48/50C with:
- Original factory test report per module
- Full manufacturer warranty documentation
- Same-day dispatch from stock (Shenzhen warehouse) for standard quantities
- Worldwide shipping via DHL / FedEx / sea freight (CIF / FOB / EXW terms)
- Engineering support for shelf compatibility verification and N+1 redundancy planning
To request a quote, send your required quantity, destination country and any cabinet model number to our team via WhatsApp +86 135 8237 6986 or the contact form on this site. For project deployments (5+ modules), we also provide single-line diagram review at no additional charge.
Q: What is the Delta DPR48/50C rectifier module?
The Delta DPR48/50C is a 3000W, -48VDC hot-swappable rectifier module for Delta DPR-series telecom power shelves. It delivers up to 50A output current, supports wide-range AC input (90-300 VAC), active PFC with PF above 0.99, and CAN/RS485 digital monitoring. It is supplied by BS Comtec as an authorized Delta distributor with factory test reports and full warranty documentation.
Q: What is the price of the Delta DPR48/50C?
Pricing depends on quantity, destination and current factory pricing. As a 3000W-class module, the DPR48/50C is priced competitively against the Huawei R4850N1/N2 and Vertiv R48-3000E3 in the same power class. BS Comtec provides same-day quotations with quantity-based pricing from Shenzhen stock. Send your required quantity and destination country for an accurate RFQ via WhatsApp +86 135 8237 6986.
Q: Where can I get the Delta DPR48/50C datasheet?
Request the full datasheet from BS Comtec when you send an RFQ. The datasheet includes detailed efficiency curves, derating characteristics, communication protocol registers and mechanical drawings. We provide original factory documentation with every shipment. The specifications listed on this page are typical values; confirm exact parameters for your project from the official datasheet.
Q: How does the Delta DPR48/50C compare to the DPR48/30G?
Both are Delta rectifier modules for DPR-series shelves, but in different power classes. The DPR48/50C delivers 3000W at 50A class, while the DPR48/30G delivers approximately 1440W at 30A. The 50C suits higher-density installations where each module must carry more load; the 30G suits smaller sites or where finer granularity of redundancy is preferred. Both support hot-swap, wide-range AC input and CAN/RS485 monitoring. For a full power-class comparison across brands, see the 48V rectifier cross-reference chart.
Last updated: October 2026. Delta DPR48/50C distributed by BS Comtec from Shenzhen warehouse. Specifications subject to manufacturer updates; request latest datasheet for project-critical parameters.
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