Overview

The Murrelektronik 857781 is part of the MPS series of industrial switching mode power supplies, engineered for high reliability in demanding automation environments. It accepts a wide input voltage range of 100–240 V AC and delivers regulated dual outputs of 24 V DC (10 A) and 48 V DC (5 A).

Its compact chassis-mount design allows seamless integration into control cabinets, while comprehensive protection features—such as overload, short-circuit, and over-voltage protection—enhance equipment safety and system uptime.

In addition, the unit is CE, RoHS, and REACh compliant, built for long service life, and supported by an SN29500 MTBF report, making it a trusted choice for automation engineers worldwide.

Therefore, the 857781 is widely adopted in industrial applications requiring stable power for PLCs, sensors, actuators, communication devices, and safety systems.

Technical Data

Typical Applications

• Stable DC power supply for PLC and DCS systems in industrial automation.

• Powering sensors, actuators, drives, and communication modules in factory networks.

• Supporting machine safety systems, alarm devices, and monitoring instrumentation.

• Use in oil & gas, chemical, pharmaceutical, and general manufacturing facilities.

• Integration into control cabinets for distributed or centralized power architectures.

For example, many production facilities use the MURR 857781 to ensure uninterrupted power delivery for mission-critical automation loops, while system integrators value its dual-voltage flexibility, enabling 24 V and 48 V equipment to be powered from a single supply.

FAQ

Q1: What makes the MURR 857781 unique compared to standard power supplies?
A1: Its dual regulated outputs (24 V / 48 V) provide high power capacity in a compact, chassis-mount form factor.

Q2: Is it suitable for global installations?
A2: Yes, the wide 100–240 V AC input range supports worldwide deployment without additional conversion hardware.

Q3: How does it improve system reliability?
A3: Built-in overload, short-circuit, and over-voltage protection ensure stable operation and help prevent equipment damage.

Q4: What certifications does it carry?
A4: CE, RoHS, and REACh compliance ensures safety, environmental compatibility, and adherence to global standards.

Q5: Which industries benefit most from this product?
A5: Manufacturing, oil & gas, chemical processing, pharmaceutical production, and automated machinery sectors.