The ABB HIEE300698R1 KUC321AE power supply module provides regulated DC power for turbine control systems. This unit converts AC mains voltage into stable 24V DC for connected modules. The power supply incorporates comprehensive protection features for reliable operation in harsh environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | AC/DC power supply module |
| Model Code | KUC321AE |
| Input Voltage | 85–264V AC (47–63 Hz) or 120–300V DC |
| Output Voltage | 24V DC (±1% regulation) |
| Output Current | 10A continuous |
| Output Power | 240W maximum |
| Efficiency | 91% typical at full load |
| Ripple & Noise | ≤40 mV peak-to-peak |
| Hold-up Time | 30 ms at full load |
| Dimensions (W x H x D) | 280 x 220 x 45 mm |
| Weight | 2.5 kg |
| Internal Capacitance | 1000 µF (low-ESR electrolytic) |
| Number of Power Semiconductors | 4 x MOSFETs, 2 x Schottky diodes |
| Input Fuse | 6.3A (slow-blow, internal) |
| Output Protection | Overvoltage (28.5V clamp), overcurrent (12A limit), short-circuit |
| Thermal Protection | Shutdown at 85°C (auto-restart) |
| Cooling Method | Natural convection (fanless) |
| Terminal Type | Screw-clamp terminals (12 positions) |
| Wire Gauge | 0.5 mm² to 6 mm² (solid/stranded) |
| Operating Temperature | -25°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| MTBF | >600,000 hours |
| Approvals | CE, UL 508, CSA, ATEX (Zone 2) |
Wide Input Range for Global Compatibility
The ABB HIEE300698R1 KUC321AE accepts 85–264V AC or 120–300V DC input without manual switching. This universal input range covers all major power grids worldwide. The module automatically adapts to different voltages for seamless global deployment. Users can connect the unit directly to any standard industrial supply.
High Efficiency and Low Heat Generation
This power supply achieves 91% efficiency at full 240W load. Higher efficiency translates to lower heat dissipation within the control cabinet. The module operates without a cooling fan, reducing maintenance and noise. Natural convection through the ventilated housing provides sufficient cooling for most applications.
Comprehensive Protection for System Safety
Overvoltage protection clamps the output at 28.5V DC to safeguard sensitive electronics. Overcurrent limiting restricts output current to 12A during overload events. Short-circuit protection activates immediately for output faults. Thermal shutdown triggers at 85°C and automatically restarts after cooling.
Substantial Energy Storage for Ride-Through
A 1000 µF low-ESR capacitor bank provides 30 ms hold-up time at full load. This energy reserve maintains 24V DC output during brief AC interruptions. The capacitors also filter high-frequency noise from the input supply. Low equivalent series resistance minimizes ripple to less than 40 mV peak-to-peak.
Robust Mechanical Construction and Termination
The module measures 280 x 220 x 45 mm and weighs 2.5 kg for stable installation. Screw-clamp terminals accommodate wires from 0.5 mm² to 6 mm² for field connections. Twelve terminal positions separate input, output, and auxiliary contacts. The IP20-rated housing protects internal components from accidental contact.
Wide Temperature Range for Demanding Environments
The ABB HIEE300698R1 KUC321AE operates reliably from -25°C to +70°C ambient. This wide range suits outdoor installations, unheated plants, and tropical climates. The unit stores safely from -40°C to +85°C without performance degradation. An MTBF exceeding 600,000 hours ensures long-term operational reliability.
Details
| Weight | 0.91 kg |
|---|---|
| Dimensions | 110 × 55 × 90 mm |
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