Simplify Panel Design with the Efficient 1606-XLE120E Power Module

Technical Specifications

Main Features and Advantages

The Phoenix Contact 1606-XLE120E​ power supply delivers a compelling combination of robustness, intelligence, and ease of use. A standout feature is its integrated Advanced Buffering Technology (ABT), which enables the power supply to maintain the output voltage within regulation for a minimum of 20ms after an input voltage failure. This “hold-up” time is critical for allowing connected PLCs and controllers to execute an orderly shutdown, save process data, or switch to a redundant power source, preventing data loss and uncontrolled machine stops. Furthermore, the unit boasts a high power factor (typically >0.95), which reduces the harmonic load on the AC mains, improves overall electrical system efficiency, and helps facilities comply with energy quality standards.Designed for maximum reliability, the 1606-XLE120E​ incorporates a robust protective suite. It features safe, electronic power limitation for short-circuit and overload conditions, preventing damage to the unit and wiring. The automatic restart function reactivates the output once a fault is cleared, minimizing downtime. Its wide operating temperature range, from -25°C to +70°C, ensures reliable performance in both cold and hot industrial environments without the need for external derating in most cases. The fanless, convection-cooled design eliminates a common point of mechanical failure (the fan) and allows for silent operation. The unit also provides a “DC OK” relay contact signal, which can be wired to a PLC input to remotely monitor the health of the power supply. The combination of universal input, high efficiency, advanced buffering, and comprehensive diagnostics in a compact, rugged package makes the Phoenix Contact 1606-XLE120E​ a superior and dependable choice for building resilient industrial control systems.

Application Field

The Phoenix Contact 1606-XLE120E​ is a universal power source for 24V DC control systems across virtually all industries. In Factory Automation and Machine Building, it is the standard power supply mounted inside control panels for CNC machines, packaging lines, robotic workcells, and assembly stations. Here, it reliably powers the PLC CPU, digital and analog I/O cards, safety relays, and network switches that form the machine’s nervous system. The unit’s robustness is essential in these environments, which are often subject to electrical noise from large motors and welders. In Process Automation, such as chemical or pharmaceutical plants, the 1606-XLE120E​ is used to power distributed I/O racks, loop controllers, and valve positioners, where its stable output is crucial for maintaining precise process control and ensuring signal integrity for 4-20mA loops.The building automation sector heavily relies on units like the Phoenix Contact 1606-XLE120E​ to power Building Management System (BMS) controllers, room automation units, damper actuators, and sensors in HVAC systems. Its wide temperature range allows installation in unheated roof spaces or boiler rooms. In Infrastructure applications, such as water and wastewater treatment plants, this power supply energizes control equipment in remote pump houses and analyzer shelters, where reliability is paramount for continuous public service. The unit’s ATEX and IECEx certifications for use in potentially explosive atmospheres (Zone 2) further extend its application into Oil & Gas and Chemical processing areas. Essentially, wherever a reliable, clean, and compact source of 24V DC power is needed for control and instrumentation, the 1606-XLE120E​ is an excellent and trusted solution.