6EP1931-2EC21

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The Siemens 6EP1931-2EC21 is a reliable and efficient DC Uninterruptible Power Supply (UPS) module designed for seamless integration into industrial automation systems. This compact and robust module ensures continuous power supply to critical equipment, preventing downtime and data loss during power outages or fluctuations. With a width of 50mm, height of 125mm, and depth of 125mm, the 6EP1931-2EC21 is designed for easy installation on a DIN rail, making it an ideal choice for space-constrained applications.

Featuring advanced protection mechanisms, such as reverse polarity protection against energy storage unit polarity reversal and input voltage polarity reversal, this UPS module ensures the safety and longevity of your equipment. The module also offers comprehensive signalling capabilities, including LED indicators for normal operation, buffering mode, and battery status, as well as floating changeover contacts for remote monitoring and control.

Compatible with a wide range of battery modules, the Siemens 6EP1931-2EC21 provides flexible and scalable power backup solutions for your automation system. With an impressive MTBF of 791,139 hours at 40°C, this UPS module is built to deliver consistent performance and peace of mind in demanding industrial environments.
Specification Description
Part Number 6EP1931-2EC21
Alternative Part Number 6EP19312EC21
Part Manufacturer Siemens
Part Category General Automation
Dimensions (H x W x D) 125 mm x 50 mm x 125 mm
Weight 0.4 kg
Input Voltage 24 V DC
Output Voltage 24 V DC
Electrical Connection Screw-type terminals
Mounting Type Snaps onto DIN rail EN 60715 35x7.5/15
Operating Temperature Range -25°C to +60°C
Storage Temperature Range -40°C to +85°C
Protection Class IP20
Certifications CE marking
EMC Standards EN 55022 Class B, EN 61000-6-2
Ambient Conditions 100% relative humidity, incl. condensation/frost (no commissioning if condensation is present)
Galvanic Isolation No
Reverse Polarity Protection Yes
Signalling LED indicators and floating changeover contacts

What is the main function of this part?

The Siemens 6EP1931-2EC21 is an Uninterrupted Power Supply (UPS) module designed to provide continuous power to connected devices in case of a power failure or voltage drop.

What are the input and output voltage specifications for this part?

The 6EP1931-2EC21 has an input voltage range of 22.5 to 29 V DC and provides an output voltage of 24 V DC.

What is the operating temperature range for this part?

The Siemens 6EP1931-2EC21 can operate in an ambient temperature range of -25°C to +60°C.

What type of electrical connections does this part have?

The 6EP1931-2EC21 features screw-type terminals for input, output, battery module, and control circuit and status message connections.

What is the weight and dimensions of this part?

The Siemens 6EP1931-2EC21 weighs 0.4 kg and has dimensions of 50 mm width, 125 mm height, and 125 mm depth.

Does this part have any protection features?

Yes, the 6EP1931-2EC21 has reverse polarity protection against energy storage unit polarity reversal and input voltage polarity reversal.

What is the required spacing for this part during installation?

The 6EP1931-2EC21 requires a spacing of 50 mm at the top and bottom, and 0 mm at the left and right during installation.

What is the mounting type for this part?

The Siemens 6EP1931-2EC21 can be mounted by snapping onto a DIN rail EN 60715 35x7.5/15.

What is the Mean Time Between Failures (MTBF) for this part?

The MTBF for the 6EP1931-2EC21 at 40°C is 791,139 hours.

  • Uninterruptible power supply for industrial automation systems
  • Backup power source for critical equipment in manufacturing plants
  • Emergency power supply for safety and security systems
  • Power protection for sensitive electronic devices in harsh environments
  • Redundant power supply for control panels and PLCs
  • Power buffering for communication and networking equipment
  • Ensuring continuous operation of monitoring and data acquisition systems
  • Power backup for renewable energy systems and power distribution units

This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.

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