The Allen-Bradley MOX720-P4668D (80026-518-01) is a specialized DC/DC switching power supply designed for demanding industrial automation and process control environments. This module is engineered to provide stable, multi-rail power distribution from a 56 VDC nominal input source, making it suitable for applications requiring high reliability in harsh thermal conditions.

Features

• Wide input voltage range (42 VDC to 58 VDC) to accommodate battery-backed and telecom-style DC buses.
• Triple-rail multi-output configuration providing 5 VDC, 15 VDC, and 24 VDC outputs.
• High-efficiency switching technology reducing thermal dissipation.
• Extended operating temperature range from -40 degC to +70 degC.
• Compact form factor optimized for integration into control cabinets and industrial enclosures.

Applications

• Industrial control system logic and processor power.
• Analog instrumentation and gate-driver circuit supply.
• Field I/O, relay coil, and indicator lamp power distribution.
• Outdoor substation automation and remote process control.
• Metallurgical and power generation control systems.

Technical Specifications

Installation Guidelines

• Ensure the chassis ground or protective earth (PE) terminal is securely bonded to the main cabinet ground to mitigate EMI and ensure safety.
• Verify that the input DC polarity matches the module markings before applying power.
• Maintain adequate clearance around the unit to allow for natural convection cooling, especially in high-temperature environments.
• Route output power cables away from high-voltage AC lines and high-EMI sources to prevent noise coupling.
• Always disconnect power before installing or removing the module from the rack or mounting surface.

FAQ

What is the core function of the MOX720-P4668D?

This module acts as a DC/DC converter that takes a 56 VDC input and provides multiple stabilized DC voltage rails (5V, 15V, and 24V) to power sensitive control electronics, I/O modules, and relay circuits.

Are the D and E revision models interchangeable?

Yes, the suffix variations (D vs E) typically denote minor manufacturing revisions or batch identifiers. They share the same 80026-518-01 base part number and are functionally equivalent for system integration.