HIMA K9203A

Description

1. Product Overview

2. Product Parameters

2.1 Core Power Specifications

• Input Voltage: 110/230V AC (single-phase), 48-60V DC (optional), 50/60Hz
• Output Voltage: 24V DC ±1% (dual redundant channels)
• Output Current: 10A per channel (20A total for redundant configuration)
• Efficiency: ≥92% (full load), ≥88% (50% load)
• Ripple & Noise: ≤50mV p-p (24V DC output)
• Redundancy: 1+1 hot standby with automatic switchover (<5ms transition time)

2.2 Electrical & Protection Parameters

• Protection Features: Overvoltage protection (28V DC max), overcurrent protection (12A per channel), short-circuit protection, thermal shutdown
• Diagnostic Features: Input voltage monitoring, output voltage/current monitoring, fault status feedback (dry contact + digital signal), LED status indicators (power, fault, redundancy)
• Communication Interface: HIMA SafetyBUS p / Ethernet for integration with SIS controller (status reporting, remote diagnostics)
• Power Consumption: ≤5W (no-load), ≤250W (full load)

2.3 Environmental & Mechanical Parameters

• Operating Temperature: -20°C to +60°C (industrial-grade range)
• Storage Temperature: -40°C to +85°C
• Relative Humidity: 5% to 95% (non-condensing), IP20 protection
• Vibration Resistance: 5-2000Hz, 2g (IEC 60068-2-6, X/Y/Z axes)
• Shock Resistance: 15g (11ms half-sine wave, IEC 60068-2-27)
• Mounting: HIMA HIMax/HIMatrix rack-mounted, hot-swappable (plug-in module)
• Dimensions: 48mm (W) × 220mm (H) × 250mm (D), standard rack compatibility
• Cooling: Forced air (internal fan) + passive convection

2.4 Certifications & Compatibility

• Safety Certifications: SIL 3 (IEC 61508/61511), TÜV Rheinland, ATEX Zone 2 (Ex nA IIC T4)
• Industry Certifications: CE, UL/cUL Class 1 Div 2, FCC Class A, RoHS, IEC 61010-1 (industrial control equipment)
• Compatibility: HIMA HIMax H51q/H81 controllers, HIMatrix F65/F75 modules, all HIMA I/O modules (F3200/F6200 series)
• MTBF: ≥500,000 hours (per Telcordia SR-332 standards)

3. Advantages & Features

1. SIL 3 Redundant Power Delivery: HIMA K9203A provides 1+1 hot standby power with <5ms switchover, eliminating single points of failure and ensuring compliance with SIL 3 safety requirements for critical SIS applications.
2. High Efficiency & Reliability: With ≥92% full-load efficiency and robust protection features (overvoltage/overcurrent/short-circuit), HIMA K9203A minimizes energy waste and protects downstream SIS components from power-related damage.
3. Advanced Diagnostics & Monitoring: Real-time input/output voltage/current monitoring and fault status feedback enable proactive maintenance, while integration with HIMA SIS controllers allows remote diagnostics and alarm notification.
4. Hot-Swappable Design: HIMA K9203A supports hot-swapping in live SIS systems, allowing module replacement without powering down safety-critical components—critical for facilities where downtime is prohibitively expensive.
5. Broad Environmental Compatibility: The -20°C to +60°C operating range and rugged mechanical design make HIMA K9203A suitable for deployment in extreme industrial environments, from arctic LNG facilities to desert refineries.

4. Application Fields & Cases

4.1 Application Fields

• Oil & Gas: Refinery ESD system power, offshore platform SIS power distribution, LNG plant fire/gas detection system power
• Petrochemical: Chemical reactor safety system power, batch process control SIS power, storage terminal emergency shutdown power
• Power Generation: Nuclear power plant auxiliary safety system power, fossil fuel plant boiler control SIS power, wind turbine safety system power
• Pharmaceutical: Cleanroom safety interlock system power, hazardous material handling SIS power

4.2 Typical Cases

1. Refinery ESD System Power: A major Middle Eastern refinery deployed HIMA K9203A modules to power 8 redundant HIMax SIS controller racks across 4 process units. The module’s 1+1 redundancy prevented a safety system outage during a primary power channel failure, avoiding a potential shutdown of the refinery’s hydrocracking unit (valued at $1M/hour in production).
2. LNG Plant Safety System Power: An Australian LNG liquefaction plant integrated HIMA K9203A into its HIMatrix SIS to power fire/gas detection and emergency shutdown components. The module’s hot-swappable design allowed maintenance crews to replace a faulty power channel during peak production without disrupting safety operations, saving $500,000 in potential downtime costs.
3. Nuclear Auxiliary Safety Power: A European nuclear power plant used HIMA K9203A to supply redundant power to auxiliary safety systems (cooling water control, radiation monitoring). The module’s SIL 3 certification and compliance with nuclear regulatory standards ensured adherence to strict safety guidelines, while diagnostic features enabled early detection of a deteriorating capacitor, preventing a potential power failure.

5. Competitive Comparison

6. Selection Suggestions & Precautions

6.1 Selection Suggestions

1. Safety Level & Redundancy Needs: Choose HIMA K9203A for SIL 3 SIS applications requiring redundant power (e.g., refineries, nuclear facilities); for SIL 2 applications, consider HIMA’s K9202 module or competitor SIL 2 redundant PSUs.
2. Load Capacity Requirements: Opt for HIMA K9203A if SIS load exceeds 10A (e.g., large I/O rack configurations); smaller redundant PSUs suffice for low-load systems (≤8A).
3. System Compatibility: Select HIMA K9203A for integration with HIMA HIMax/HIMatrix SIS to ensure full diagnostic and redundancy support; third-party PSUs may lack compatibility with HIMA’s safety protocols.

6.2 Precautions

1. Installation Guidelines:
   • Install HIMA K9203A in HIMA-certified racks only; ensure proper grounding (≤4Ω) and separate input power feeds for redundant channels (to maximize fault tolerance).
   • Use 16AWG or larger wiring for output connections (24V DC) to minimize voltage drop, and comply with local electrical codes for hazardous area installations (e.g., Zone 2/Class 1 Div 2).
2. Configuration Notes:
   • Configure fault response settings (e.g., alarm notification, automatic switchover) via HIMA Safety Workbench software to align with site safety procedures.
   • Enable remote diagnostics and status reporting to monitor power module health from the central control room.
3. Troubleshooting:
   • For output voltage faults: Check input power supply, verify load current (ensure it does not exceed 10A/channel), and inspect for short circuits in downstream wiring.
   • For redundancy alarms: Test the standby channel (via Safety Workbench) and replace the faulty channel if switchover fails.
   • Hot-swapping: Follow HIMA procedures (isolate the faulty channel first) to avoid power disruption during module replacement.
4. Maintenance:
   • Inspect cooling fans every 12 months (clean or replace if damaged) to prevent thermal shutdown, and test battery backup (if installed) quarterly to ensure uninterrupted power during input outages.
   • Calibrate voltage/current monitoring sensors every 2 years using a calibrated multimeter to maintain accuracy.
   • Stock spare HIMA K9203A modules for critical applications—lead times for SIS power modules may exceed 8 weeks.

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