Emerson HD4825-3 Telecom Switch-Mode Rectifier Module (-48V 25A 1450W)
Compact 48V/25A single-phase high-frequency rectifier offering ultra-wide AC input tolerance and autonomous active load sharing.
EmersonModel: NetSure 211 C46-S1
Emerson NetSure 211 C46-S1 Embedded DC Power System (-48V 60A/80A 2U Subrack)
The Emerson NetSure 211 C46-S1 is an ultra-reliable 2U embedded telecom power subrack accommodating up to 4 x R48-1000/1000e3 rectifiers for 60A-80A output, widely deployed for cell site stability.
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- Rated Distribution Capacity
- 60A - 80A / 4000W Output
- Compatible Rectifier Modules
- R48-1000 / R48-1000e3 Series
- Nominal DC Output Voltage
- -48VDC (-42V ~ -58V)
- AC Input Voltage
- 85V - 290V AC Wide Grid Tolerance
- Chassis Form Factor
- 88 (2U) × 482 × 290 mm
- Supervisory Controller Slot
- M221S / M222S Controller Unit
What this product is
What this product is
The Emerson NetSure 211 C46-S1 is an ultra-reliable 2U embedded telecom power subrack accommodating up to 4 x R48-1000/1000e3 rectifiers for 60A-80A output, widely deployed for cell site stability.
What problem it solves
Resolves power grid instability, excessive OPEX energy dissipation, battery degradation, and rack footprint constraints.
Who and where it is for
5G cellular cell sites, core telecom DC plants, AI data centers, transport networks, and critical industrial DC UPS.
Core advantages
- Legendary Industrial Durability: Renowned Emerson architecture proven across decades of harsh fieldwork.
- 2U All-In-One Integration: Consolidates AC inputs, rectifier slots, DC branches, and battery contactor.
- Live Hot-Swap Upgrades: Tool-free live insertion and extraction of R48-1000 modules under load.
- Smart Battery Stewardship: Temperature sensor integration delivers compensated float charging to prevent runaway.
Technical specifications
| Key specifications | Value |
|---|---|
| Rated Distribution Capacity | 60A - 80A / 4000W Output |
| Compatible Rectifier Modules | R48-1000 / R48-1000e3 Series |
| AC Input Voltage | 85V - 290V AC Wide Grid Tolerance |
| Chassis Form Factor | 88 (2U) × 482 × 290 mm |
| Supervisory Controller Slot | M221S / M222S Controller Unit |
| Nominal DC Output Voltage | -48VDC (-42V ~ -58V) |
| Overall System Efficiency | Up to 96.2% (Gold Standard) |
| Acoustic Noise | ≤ 55 dBA (at 25°C ambient load) |
| Ingress Protection Rating | IP20 (Indoor Dust & Finger Proof) |
| Dielectric Withstand Voltage | 3000VAC Input to Ground (< 5mA) |
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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