S54430-C27-A1 | Siemens PSX-12M 24VDC Power Supply Extender for Desigo Modular Systems

Siemens · Power Supplies & Transformers

Description  The Siemens PSX-12M (S54430-C27-A1) is a power supply extender designed to expand the output of the PSC-12M main power supply in Desigo Modular fire safety systems. It delivers an additional 12A of regulated 24VDC power to support system growth and higher current requirements. With intelligent monitoring and dual output terminals, the PSX-12M ensures reliable and scalable power distribution for mission-critical fire protection systems.     Technical Specifications  Condition New/Never Used Surplus Brand Siemens Category Fire Alarm Power Supplies Part Number S54430-C27-A1 Subcategory Power Supply Extenders Model PSX-12M Output Voltage 24VDC Output Current 12A maximum Power Outputs 2 (4A power-limited, 12A non-power-limited) AC Input Range 120–240VAC, 50/60Hz Converter Type Switch-mode with power factor correction Communication 60-pin backplane bus Monitoring Status reporting to FCM2041-U2 Operator Interface Indicators LEDs for Power On, Module Failure, H-NET Failure, Ground Fault, Output Failures Mounting Options Back box module space or CAB-MP mounting plate (fits CAB1, CAB2, CAB3 enclosures) Expansion Capacity Up to 3 PSX-12M units per PSC-12M Dimensions 19 × 9 × 9 in Weight 7 lbs Information About S54430-C27-A1 The S54430-C27-A1 is part of Siemens’ Desigo Fire Safety Modular family, engineered as an auxiliary high-current supply that integrates seamlessly with PSC-12M units. Built with a universal AC input range of 120–240VAC, the PSX-12M requires no special configuration and includes a switch-mode converter with power factor correction to improve efficiency. Its addressable, microprocessor-controlled design communicates system status, loading conditions, and fault alerts to the Operator Interface (FCM2041-U2). With diagnostic LEDs, dual output circuits, and backplane bus connectivity, this power extender provides a dependable and scalable solution for large fire alarm installations. Key Features: Auxiliary Power Expansion: Provides 12A of regulated 24VDC power for Desigo Modular systems. Dual Output Terminals: One 4A power-limited output and one 12A non-limited output (combined max 12A). Universal AC Input: Accepts 120–240VAC at 50/60Hz with no special setup. Microprocessor Control: Reports module status, ground faults, and load data to the Operator Interface. System Integration: Connects via 60-pin power/data bus for seamless communication with system modules. Diagnostic LEDs: Provides visual indication of power status, network faults, and output failures. Modular Mounting: Installs in one of four module spaces or onto CAB-MP mounting plates in CAB1, CAB2, or CAB3 enclosures. Scalable Design: Supports connection of up to three PSX-12M units per PSC-12M for expanded capacity. The S54430-C27-A1 delivers the reliability and precision required for scalable power distribution in advanced fire safety systems.

Brand: Siemens · Category: Power Supplies & Transformers

Key features

• Auxiliary Power Expansion: Provides 12A of regulated 24VDC power for Desigo Modular systems.
• Dual Output Terminals: One 4A power-limited output and one 12A non-limited output (combined max 12A).
• Universal AC Input: Accepts 120–240VAC at 50/60Hz with no special setup.
• Microprocessor Control: Reports module status, ground faults, and load data to the Operator Interface.
• System Integration: Connects via 60-pin power/data bus for seamless communication with system modules.
• Diagnostic LEDs: Provides visual indication of power status, network faults, and output failures.
• Modular Mounting: Installs in one of four module spaces or onto CAB-MP mounting plates in CAB1, CAB2, or CAB3 enclosures.
• Scalable Design: Supports connection of up to three PSX-12M units per PSC-12M for expanded capacity.

Specifications

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