1606-XLE120E — 120W DIN Rail Power Supply, 24V DC, 5A, 100–240V AC Input

The 1606-XLE120E is a 120W regulated DIN rail power supply from the 1606-XLE series, delivering 24V DC at up to 5A from a universal 100–240V AC input. It's a single-output unit in the industrial grade — not a switchmode supply pulled from a consumer electronics channel, but a unit designed for continuous duty in machine control panels, built to withstand the vibration, temperature cycles, and electrical interference environment of industrial installations.

At 120W / 5A, it covers the field power requirements of a modest POINT I/O node, a small CompactLogix system with a handful of I/O modules, or a distributed I/O cabinet powering sensors, solenoids, and panel indicators. The XLE series sits below the larger XL and XLSDP series in the 1606 family but above basic non-industrial supplies in terms of build quality, diagnostics, and installed reliability.

Specifications

Parameter	Value
Part Number	1606-XLE120E
Series	1606-XLE
Output Voltage	24V DC (adjustable 24–28V DC)
Output Current	5 A
Output Power	120 W
Input Voltage	100–240V AC (85–264V AC wide range)
Input Frequency	47–63 Hz
Efficiency	≥ 89% @ full load
Output Voltage Ripple	≤ 100 mV peak-to-peak
Holdup Time	≥ 20 ms @ 120V AC full load
NEC Class 2 Compliance	Yes
Diagnostics	DC OK LED indicator
Short-Circuit Protection	Yes (auto-restart)
Overload Protection	Yes
Mounting	35 mm DIN rail
Operating Temperature	−25°C to 60°C (full load; derate above 50°C)
Standards	UL 508, CE, ATEX Zone 2, cUL

Installation and Panel Design Notes

Mounting orientation: the 1606-XLE120E is rated for vertical DIN rail mounting (terminals at top and bottom). Horizontal mounting reduces maximum output current by approximately 20% due to reduced convective cooling. If horizontal mounting is unavoidable, derate accordingly.
Adjacent clearance: maintain at least 50 mm clearance above and below the supply for convective airflow. Sandwiching the supply between two heat-generating components without clearance causes internal temperature rise that reduces service life.
Output fusing: fuse each output branch circuit individually, sized for the maximum load current on that branch plus a safety margin. A single 5A output feeding one unfused branch means a fault anywhere on that branch can load the supply to its short-circuit limit — individual branch fuses isolate faults to the affected circuit.
Input surge suppression: install a MOV or TVS-based surge suppressor on the AC input if the incoming supply is subject to lightning transients or power line surges. The supply's internal protection covers normal supply variations; it is not a substitute for external surge protection in exposed locations.
Parallel operation: two 1606-XLE120E units can be paralleled for 240W / 10A output if one supply's output voltage is trimmed 0.2–0.3V higher than the other. The higher-voltage unit takes primary load; the lower-voltage unit balances in as load increases. This provides both redundancy and capacity expansion without a dedicated redundancy module.

FAQ

Q: Can this supply power a CompactLogix controller directly?

CompactLogix controllers are powered from a separate 24V DC supply input on the controller module. The 1606-XLE120E can serve as that supply, provided the controller's 24V DC power requirement (typically 1–2A for the controller itself) and the field power requirements of all connected I/O modules together stay within the 5A output rating.

Q: What happens when the output is overloaded or short-circuited?

The supply current-limits at approximately 105–115% of rated current for brief overloads, then shuts down and auto-restarts after the fault clears. For a persistent short circuit, the supply cycles off and on repeatedly until the short is removed. The DC OK indicator extinguishes during an overload shutdown.

Q: Is derating required at high ambient temperatures?

Full 5A output is available up to 50°C ambient. Above 50°C, maximum output current decreases linearly — approximately 2.5% per degree Celsius above 50°C. At 60°C, the maximum output is around 4.25A. Panel thermal design should keep the supply's operating temperature within the rated range for full output capacity.

Q: Can the supply operate on a DC input instead of AC?

The 1606-XLE120E is designed for AC input only. Some power supplies in the 1606 family accept both AC and DC input; the XLE series does not. For DC-input applications (battery-backed systems, 110V DC bus), check the 1606-XLP or XLSDP series for DC input compatibility.

1606-XLE120E-2 New In Box Power Supply 120W 1606XLE120E