HIMA K9203A 996920360

Description

Product Description

The HIMA K9203A 996920360 is a critical power supply module designed for HIMA’s high-availability safety PLC systems, specifically within the HIMatrix or H41q/H51q platform. This module serves as the primary source of conditioned and reliable power for the entire safety controller rack, including the CPUs, I/O modules, and communication interfaces. Engineered for fault-tolerant applications, the HIMA K9203A 996920360 is typically designed with redundant capabilities, allowing two or more units to be operated in parallel (N+1 configuration) to ensure uninterrupted power delivery. Its primary function is to convert the incoming AC mains voltage into the stable, isolated DC voltages required by the sensitive safety control electronics. The reliability and redundancy of the HIMA K9203A 996920360 are fundamental to maintaining the continuous operation of Safety Instrumented Systems (SIS) where any power interruption could compromise safety functions. Integrating a genuine and properly rated power supply, such as the HIMA K9203A 996920360 (https://www.example-link-hima-product.com), is a foundational requirement for building a certified, high-availability safety system. The dual part numbers are essential for precise identification and sourcing.

Product Parameters / Technical Specifications

• Manufacturer: HIMA
• Product Family: HIMatrix / H41q/H51q Safety System Power Supplies
• Module Type: Redundant Power Supply Unit (PSU)
• Model / Designation: K9203A
• Order Code / Article Number: 996920360
• Input Voltage: Wide-range AC input, typically 100-240V AC, 50/60 Hz, for global operation.
• Output Voltage: Provides regulated +24V DC output for the system backplane and field devices.
• Output Power/Current: Rated for a specific power (in watts) or current (in amperes), defining the total load it can support.
• Redundancy Feature: Designed for parallel operation with load sharing and automatic failover. Includes monitoring signals (e.g., “DC OK” relay contact) for system diagnostics.
• Efficiency: High switching efficiency to minimize heat generation.
• Protections: Comprehensive protection against overvoltage, overcurrent, short circuit, and overtemperature.
• Status Indicators: LEDs for AC Power OK, DC Output OK, and Fault conditions.
• Mounting: Typically designed for DIN-rail mounting within the safety controller cabinet.
• Certifications: Built to relevant industrial and safety standards, suitable for use in SIL-rated systems.

Advantages and Key Features

• High Availability through Redundancy: The key feature of the HIMA K9203A 996920360 is its N+1 redundancy, which eliminates the power supply as a single point of failure, ensuring the safety controller remains powered even if one unit fails.
• Clean and Stable Power: Provides excellent line and load regulation, protecting sensitive safety controllers from electrical noise and voltage fluctuations that could cause spurious trips or faults.
• Hot-Swap Capability: When used in a redundant configuration, a failed unit can typically be replaced without shutting down the safety system, supporting continuous operation.
• Integrated Diagnostics: Clear local LED status and relay contacts for remote alarm integration allow for proactive maintenance and immediate fault notification.
• System-Integrated Design: As a genuine HIMA component, it is fully compatible with the mechanical, electrical, and monitoring requirements of the HIMA safety system architecture.

Application Cases in Various Fields

• Oil & Gas (ESD/F&G Systems): Powering a redundant HIMA safety controller for an Emergency Shutdown system on an offshore platform, where loss of power is not an option.
• Chemical & Petrochemical Plants: Ensuring uninterrupted power to the safety system protecting batch reactors and distillation columns from overpressure and runaway reactions.
• Power Generation (Burner Management): Providing redundant power to the safety controller managing fuel trains and flame supervision in a boiler.
• Pharmaceutical Manufacturing: Protecting critical batch processes where a safety system shutdown could lead to hazardous conditions or product loss.
• Rail Transportation (Signaling): Powering vital interlocking safety systems in railway control centers.

Comparison with Competing Products

The HIMA K9203A 996920360 competes with redundant power supply solutions from other safety system vendors like Siemens (SITOP redundant for S7-400F), ABB (redundant PSUs for System 800xA HI), and Triconex. Its primary advantage is its certified compatibility and optimized integration within the HIMA safety ecosystem. Compared to using two independent standard industrial power supplies, this module offers designed-in load sharing, monitoring, and a form factor that matches the safety system’s requirements, though it may come at a premium cost.

Selection Suggestions and Precautions

• Selection Advice: Select the HIMA K9203A 996920360 for building or maintaining a redundant power infrastructure for a HIMA safety controller (HIMatrix, H41q, etc.). It is essential for applications targeting high system availability. Choose the current/power rating based on the total calculated load of all modules in the rack with a significant safety margin (e.g., 30-50%). For redundancy, always use at least two identical units.
• Precautions:
  1. Proper Redundancy Wiring: Meticulously follow HIMA’s wiring diagram for parallel connection, including the load-sharing lines and alarm contacts. Incorrect wiring can disable redundancy or damage the units.
  2. Accurate Load Calculation: Calculate the total 24V DC load of the safety controller rack. In a redundant setup, each K9203A unit must be capable of handling the full system load on its own.
  3. Cooling and Spacing: Redundant power supplies generate heat. Ensure adequate spacing and ventilation in the cabinet as per the installation manual.
  4. Input Protection: Protect each unit’s AC input line with a correctly rated fuse or circuit breaker as specified by HIMA.
  5. Use of Genuine Parts: For system reliability and to maintain safety certifications, use genuine HIMA power supply modules sourced from authorized distributors.

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