3RH1911-1HA01 SIEMENS Power module

Description

3RH1911-1HA01 SIEMENS Power module

Product Dimensions：

Product Description

Siemens Power Modules are engineered to convert incoming line voltage into the specific DC voltages required by controllers, I/O modules, and other automation hardware. These modules are often categorized into two functional roles: system power supplies that provide energy to the internal backplane of a PLC rack, and load power supplies that provide 24V DC to external sensors, actuators, and HMIs. They are built with industrial-grade circuitry to handle fluctuating input power and provide a “buffer” against grid instability.

Product Parameters

The technical specifications of power modules are centered on efficiency and electrical stability:

• Input Voltage Range: Wide-range inputs supporting various AC phases or DC input levels to accommodate global power standards.
• Output Voltage: Typically regulated to 24V DC, with high precision to prevent logic errors in downstream devices.
• Current Rating: Scalable amperage outputs to meet the total power consumption requirements of the connected system.
• Efficiency: High energy conversion rates, often exceeding 90%, to minimize heat dissipation within the control cabinet.
• Mains Buffering: Integrated capacitors that provide “holdup time,” allowing the system to bridge short-term power dips without resetting.
• Protection Class: Integrated electronic short-circuit and overload protection with automatic or manual restart options.

Product Advantages

• Optimized Design: Tailored to match the form factor of Siemens controllers, allowing for seamless mechanical installation on standard rails.
• Reliability in Harsh Conditions: Designed to operate across broad temperature ranges and withstand the vibration and shock typical of factory floors.
• Diagnostic Integration: Many modules feature signaling contacts or integrated LEDs to report “Output Voltage OK” or fault conditions to the central controller.
• Power Reserve: Often feature “extra power” capabilities, allowing them to handle brief current peaks during the startup of inductive loads like motors or solenoids.
• Global Certifications: Pre-certified with international standards (such as CE, UL, and ATEX), simplifying the export process for machine builders.

Important Considerations

• Thermal Clearance: Proper spacing must be maintained around the module to allow for natural convection cooling, as overheating can trigger protective shutdowns.
• Parallel Connection: Not all modules support parallel operation to increase current; check specific technical data before attempting to link multiple outputs.
• Overload Behavior: Understand whether the module uses “Constant Current” or “Hiccup” mode during an overload to ensure it aligns with the needs of your specific load.
• Input Protection: While modules have internal fuses, external miniature circuit breakers (MCBs) are usually required on the primary side for branch circuit protection.
• Derating: Be aware that the maximum output current may decrease if the module is operated at very high ambient temperatures or specific altitudes.

Product Applications

• Central System Supply: Providing the necessary voltage for the operation of CPUs and communication processors within a main control rack.
• Distributed I/O Power: Supplying energy to remote interface modules located far from the main control cabinet.
• Sensor and Actuator Power: Serving as the 24V DC source for field devices such as proximity switches, valves, and relays.
• HMI and Visualisation: Powering operator panels and industrial PCs to ensure continuous monitoring even during minor grid fluctuations.
• Critical Process Backup: Integrated into redundant power configurations to ensure that a power supply failure does not lead to an unscheduled production stop.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

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