Wide Input Range 1kW DC/DC Converter
The CDCWI1048 is a compact 1kW DC/DC power converter designed for telecom, utility, and enterprise network infrastructure. t converts a wide DC input range (24 to 63 Vdc) into a stable 48 Vdc output, making it ideal for street cabinets, telephony platforms, and backup power systems in demanding environments.
Optimized for 300 mm deep cabinets, the CDCWI1048 combines a compact footprint with advanced protection and monitoring features, including intelligent thermal derating, remote on/off control, voltage programming, and active load sharing. Its hot-swap capability and integrated redundancy diode ensure continuous operation and minimal downtime, while an MTBF of 300,000 hours (per Telcordia SR-332) guarantees long-term reliability. The converter operates seamlessly in parallel with other 1000 W units and integrates with the COMPAS monitoring platform for remote supervision.
Highlights
- Wide input range: 24–63 Vdc automatic range selection
- Output: 1000 W @ high nominal voltage, 48 Vdc nominal output
- Compact design: fits 300 mm (11.8") deep cabinets, 1U form factor
- Hot-swappable: integrated redundancy diode for zero-downtime maintenance
- Modular & scalable: parallel operation, from 1 to 10 kW systems
- Remote monitoring & control: compatible with COMPAS platform, remote on/off, voltage programming
- Built-in protections: overvoltage, undervoltage, reverse polarity, over-temperature, short-circuit
- High reliability: MTBF 300,000 hours (Telcordia SR-332)
- Certified: CE marked, UL 62368, RoHS compliant, EN 61000-6 EMC standards
Application area
- Sector: Telecom
- Customer : Telecom integrators, Telecom operaters
- Application : Telecom access network street cabinets
- Country : Worldwide
- Expertise : Customized system 2kW - 4kW, environmental monitoring
Datasheet
- Input voltage: 48 Vdc nominal (high range), 24 Vdc nominal (low range) — automatic range selection
- Max input: 63 Vdc
- Input current: <30 A @40 Vdc, <32 A @18 Vdc, 24 A @nominal source voltage & nominal load
- Output voltage: 40.5 to 58 Vdc (54 Vdc nominal)
- Output power: 1000 W @high nominal source voltage, 500 W @low nominal source voltage
- Output current: 0 A min, 18.5 A @high input range, 9.3 A @low input range
- Output current limit: 22 A @high nominal voltage, 17 A @low nominal voltage; short-circuit @30 Arms
- Ripple & noise: 500 mV p-p, 50 mV True RMS, 2 mV RMS psophometric wideband noise, 20 mV RMS flat/unweighted wideband noise
- Efficiency: 90% @high nominal source voltage, 87% @low nominal source voltage
- MTBF: 300,000 hours per Telcordia SR-332 (25°C)
- Protections:
- overvoltage up to 63 Vdc
- undervoltage at 17 Vdc
- output over/under-voltage
- thermal protection (55–70°C) with derating of 2% (high range) / 1.5% (low range)
- fan failure protection
- Indicators:
- LED off (no power)
- green (no failure)
- orange (standby/remote off)
- red (low DC voltage <37 Vdc)
- blinking green (output derated)
- blinking orange (standby via VAN bus)
- blinking red (AC failure, thermal failure or short-circuit)
- Turn on/off delay: 2500 ms (mains on, full input range), 500 ms (remote on), 300 ms (remote off)
- Dimensions: 40.5H (1U) x 86W x 210D mm / 1.6H x 3.4W x 8.3D in
- Weight: 1.2 kg
- Connectors: IN+, IN-, PE (screw terminals)
- Operating Temperature: -20 to +55°C
- Full nominal output power temperature: -20 to +70°C
- Storage Temperature: -40 to 85°C
- Humidity, Operating: 20 to 80% RH non-condensing
- Humidity, Storage: 10 to 95% RH non-condensing
- Elevation: Up to 3000m
- Cooling: Fan cooled (front to rear)
- Safety: CE marked, SGS-EN60950, CSA 60950-1
- Environment: RoHS compliant
- EMC: EN 61000-6-1, EN 61000-6-3, ETSI EN300386
- Global approvals: UL 62368 certified, c-SGS-us
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FAQ
The CDCWI1048 is a 1kW DC/DC converter used to power -48V telecom, utility, and enterprise network infrastructure, typically integrated into ACE power shelves alongside other 1000W modules.
It accepts a wide DC input range of 24 to 63Vdc, with automatic range selection between the 24Vdc (low) and 48Vdc (high) nominal ranges — no manual configuration needed.
No. The CDCWI1048 is a DC/DC-only converter. For an AC/DC equivalent that also accepts AC sources, see the ECOR1048TN, which shares the same 1000W output and shelf compatibility.
Yes. It can operate in parallel with other CDCWI1048 units, and even alongside 1000W ECOR1048 converters within the same shelf, for scalable systems from 1 to 10kW.