Description
Technical Parameters
| Parameter | Specification |
|---|---|
| Input Voltage | Wide range: 24–250 VDC (auto‑sensing); 24–240 VAC compatible with external adapter |
| Output Rails | +5 VDC / 8A (logic), ±15 VDC / 2A (each rail, analog), +24 VDC / 2A (auxiliary) |
| Isolation | Full isolation (1.5kV input‑to‑output, 2.0kV output‑to‑ground) |
| Protection | Overcurrent protection (adjustable per output via jumpers), short‑circuit protection, transient suppression (6kV surge), reverse polarity protection, input undervoltage lockout |
| Regulation | Load regulation: ±0.3%; Line regulation: ±0.15%; Ripple: < 20mVpp (+5V), < 15mVpp (±15V) |
| Monitoring | 4 analog feedback channels (voltage and current monitoring for +5V and +24V); 4 digital fault outputs (relay, 24V/1A) for system faults and diagnostic alerts |
| Digital Interface | 4 digital inputs for external control; 6 digital outputs for status indication |
| Diagnostic Features | Onboard diagnostic engine for power supply health monitoring; event logging (2,000‑event buffer) |
| Operating Temperature | –30°C to +65°C |
| Form Factor | 6U × 6HP (30mm) – requires 1.5 slots |
| Backplane Connector | Standard VME 96‑pin P1 + reinforced 60‑pin P2 |
| Status LEDs | 8 indicators: INPUT OK (green), OUTPUT OK (green), SYSTEM OK (green), FAULT (red), WIDE INPUT ACTIVE (blue), AUX OK (green), OVERTEMP (yellow), DIAGNOSTIC ALERT (orange) |
| Certifications | CE, UL 508, CSA Class I Div 2 |
| Efficiency | ~84% at full load |
Critical note: The DS3800NUVA1B1B is a universal voltage power board with wide input voltage range (24–250 VDC), higher capacity, and enhanced diagnostics. It is physically wider (6HP) than standard 4HP boards and requires 1.5 adjacent slots. Hot‑swapping is not supported.
Key Features & Advantages
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Wide Input Voltage Range – Accepts 24–250 VDC input, suitable for various power sources.
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Higher Capacity – +5V at 8A, ±15V at 2A, and +24V at 2A—higher than baseline NUVA (5A, 1A, 1A).
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Auto‑Sensing Input – Automatically detects input voltage range.
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Enhanced Monitoring – Four analog channels for voltage and current monitoring.
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Diagnostic Engine – Onboard diagnostics for power supply health monitoring.
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Event Logging – 2,000‑event buffer for failure analysis.
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Four Fault Relays – Separate fault indication for system faults and diagnostic alerts.
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Full Isolation – 1.5kV isolation protects sensitive circuits.
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Wide Temperature Range – –30°C to +65°C.
Typical Application Cases
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Auxiliary Control Cabinets – Powers logic and analog circuits with variable input sources.
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Test Equipment – Provides flexible power for laboratory and test applications.
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Field Device Power Distribution – Powers field devices with varying input voltage.
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System Integration Projects – Used when wide input range and diagnostics are required.
Competitive Comparison
| Aspect | DS3800NUVA1B1B (GE) | DS3800NUVA (baseline) | Generic Wide‑Range Supply |
|---|---|---|---|
| Input Voltage | 24–250 VDC | 24–250 VDC | Varies |
| +5V Output | 8A | 5A | Varies |
| ±15V Output | 2A each | 1A each | Varies |
| Diagnostics | Yes | No | Varies |
| Price (refurb) | ~$4,800–$7,000 | ~$4,000–$5,800 | ~$200–$800 |
Selection Guidelines & Precautions
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Application Verification – Designed for flexible power distribution with wide input voltage and diagnostics.
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Physical Compatibility – 6HP wide, requires 1.5 adjacent slots.
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Backplane Compatibility – Uses P1 and P2. If backplane lacks P2, auxiliary features unavailable.
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Input Voltage Range – Ensure input voltage is within 24–250 VDC range.
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Thermal Derating – Full output to 55°C; derate to 90% at 55–60°C, 80% at 60–65°C. Do not operate above 65°C.
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Spare Sourcing – Production ended in 2018. Request test report verifying outputs and wide input functionality. Inspect for capacitor bulging or discoloration. Prioritize this over baseline NUVA for applications requiring higher capacity and diagnostics.
A-B 1756-TBCH
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