Allen-Bradley 1606-XLS240E — 24VDC 10A DIN-Rail Supply Review

By Abdullah Zahid
14 min read
Allen-Bradley 1606-XLS240E 240W 24VDC 10A DIN-rail switched-mode power supply for industrial control panels

Allen-Bradley 1606-XLS240E XLS Power Supply 240W 24VDC 10A: Specs, Price and Alternatives

Controls engineers specifying or replacing a 24 VDC supply in an Allen-Bradley control panel often land on the 1606-XLS240E after confirming their load sits near the 10 A mark and their facility is already standardized on Rockwell hardware. The Allen-Bradley 1606-XLS240E is a 240 W, 24 VDC, 10 A DIN-rail switched-mode power supply from the Bulletin 1606-XLS family, accepting a wide AC input of 100–240 VAC at 50/60 Hz and a DC input range of 88–187 VDC — giving it genuine flexibility across different supply configurations in industrial control panels worldwide.

If you have already confirmed this is the correct part for your panel, check current pricing and availability for the 1606-XLS240E at LeadTime.ca — we ship worldwide.

Who Should Buy the 1606-XLS240E — and Who Shouldn't

The Allen-Bradley 1606-XLS240E is the right choice when all of the following are true for your application:

  • Your 24 VDC control loads — PLCs, I/O, HMIs, sensors, relays — draw no more than 10 A continuous (240 W) with adequate margin after accounting for inrush.
  • Your input supply is single-phase 100–240 VAC, 50/60 Hz, or a DC source within the 88–187 VDC range.
  • Your panel and procurement standard is built around Allen-Bradley or Rockwell Automation hardware and the UL/CE approvals that come with it.
  • DIN-rail mounting is available in your enclosure with sufficient clearance for convection cooling.
  • NEC or CEC Class 2 circuit compliance is not required from this supply — the 1606-XLS240E is not a Class 2-rated device.

If your load requires more than 240 W, consider a higher-wattage model in the 1606-XLS family. If your project is budget-driven and platform alignment with Rockwell is not a requirement, a lower-cost third-party DIN-rail supply may be worth evaluating. If you need Class 2-limited circuits, specify a supply that carries that rating explicitly.

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What the 1606-XLS240E Actually Does in a Control System

The Allen-Bradley 1606-XLS240E is a DIN-rail switched-mode power supply that converts single-phase AC mains — or a DC bus in the 88–187 VDC range — into a regulated 24 VDC output at up to 10 A continuous. Its role in the control panel is straightforward: it sits at the top of the 24 VDC distribution chain and feeds every device on that rail, from PLC processors and remote I/O modules to HMI panels, field sensors, relay coils, and network switches.

The output voltage is adjustable from 24 V up to 28 V using a multi-turn potentiometer, with a maximum ceiling of 30 V. That adjustment range exists for a practical reason: on panels with long cable runs to remote sensors or actuators, a small upward trim at the supply terminals can compensate for resistive voltage drop and keep field devices inside their rated input window. At the 28 V setting, the supply delivers 252 W according to manufacturer catalog data — a useful margin over the 240 W base rating at 24 V.

Plants that standardize on Allen-Bradley tend to favor the 1606-XLS series precisely because it is a known quantity — the documentation, approvals, and replacement cycle are predictable, and the part number stays consistent across the Bill of Materials for multiple machine builds. The 1606-XLS240E is not trying to win on purchase price alone; it earns its place through consistency, industrial-grade approvals including UL 508 and CE, and its fit within a Rockwell-centric architecture.

Typical System Architecture for the 1606-XLS240E

The 1606-XLS240E sits between the incoming AC supply and the 24 VDC control bus, acting as the single point of regulated DC conversion for all downstream control devices. A typical deployment looks like this:

  • Incoming single-phase AC mains (100–240 VAC) or DC bus (88–187 VDC) feeds the supply through an external fuse or circuit breaker on the input terminals.
  • The 1606-XLS240E converts and regulates the output to 24 VDC at up to 10 A, distributing power across the 24 VDC rail inside the control enclosure.
  • Allen-Bradley PLC processors, remote I/O modules, and communication adapters draw from the 24 VDC bus as their primary control voltage.
  • HMIs, field sensors, relay coils, and actuator solenoids connect downstream on the same 24 VDC distribution rail.
  • A DC-OK signal from the supply can be wired back to the PLC or a diagnostic circuit to flag power supply faults to the control system.

Where Engineers Deploy the 1606-XLS240E

Factory automation and machine building account for the majority of 1606-XLS240E deployments. OEM machine builders who standardize on Allen-Bradley PLCs and I/O consistently specify this supply because it fits the same panel architecture used across their entire machine line — one part number, one set of approvals, one training burden for maintenance staff.

Material handling and conveyor systems are another strong fit. A 10 A supply at 24 VDC handles the combined load of a CompactLogix or MicroLogix processor, several I/O modules, a handful of proximity sensors, and a clutch-brake relay without running near the rail limit — provided the load is summed and verified before specification.

Packaging lines and process skids benefit from the wide input range. The 100–240 VAC acceptance means a single catalog number works across facilities with different utility voltage standards, and the DC input capability (88–187 VDC) supports battery-backed or DC-bus-fed architectures used in some process environments.

Food and beverage plants running Rockwell platforms often use the 1606-XLS series as part of a facility-wide panel standard. The UL 508 and CE approvals satisfy both internal engineering standards and third-party audits without requiring additional documentation effort for each new installation.

Application Typical Deployment
Allen-Bradley PLC panel Primary 24 VDC source for processor, I/O modules, and communication devices
Conveyor and material handling Powers sensors, relay coils, and zone control I/O in DIN-rail enclosures
Packaging machine Single-supply 24 VDC architecture feeding HMI, servo drive control circuits, and safety relays
Process skid or panel DC-bus or AC-fed supply for instrumentation loops and valve solenoids
OEM multi-machine standardization Same catalog number across all machines in a product line for maintainability
Legacy linear supply upgrade Drop-in DIN-rail replacement reducing heat load and panel space in existing enclosures

Purchase-Decision Specs and Variant Comparison

Parameter Value Notes
AC Input Voltage 100–240 VAC, 50/60 Hz Wide-range; external overcurrent protection required on input
DC Input Voltage 88–187 VDC continuous Nominal 110–150 VDC; enables DC bus or battery-backed supply
Output Voltage (Nominal) 24 VDC Standard control voltage for PLCs, I/O, sensors, HMIs
Output Voltage (Adjustment Range) 24–28 VDC (max 30 V) Multi-turn potentiometer; do not exceed connected device ratings
Output Current 10 A continuous At 24 VDC rated output
Output Power 240 W at 24 V; 252 W at 28 V Per manufacturer catalog data
Mounting DIN-rail Standard control panel rail; observe orientation and clearance requirements
Cooling Method Convection-cooled No fan; requires adequate ventilation clearances in enclosure
Standards and Approvals UL 508, CE, EMC (EN 55011/55022 Class B) Suitable for industrial and light commercial/residential installations
Class 2 Rating Not rated as Class 2 Verify NEC/CEC code compliance before specifying for Class 2 circuits

Full technical specifications are available on the product page at LeadTime.ca.

1606-XLS240E vs Key Variants and Alternatives

Model Output Input Range Key Differentiator Choose When
1606-XLS240E 24 VDC, 10 A, 240 W 100–240 VAC / 88–187 VDC Standard variant; broad approvals Standard Rockwell panel, AC or DC input
1606-XLS240EA 24 VDC, 10 A, 240 W Variant-specific — confirm with datasheet Different input or approval configuration Specific regional or input requirements differ from base model
1606-XLS240EC 24 VDC, 10 A, 240 W Variant-specific — confirm with datasheet Different input or approval configuration Alternate approval set needed for installation site
1606-XLS240E-D 24 VDC, 10 A, 240 W DC input variant DC-only input configuration Installation site has only DC supply available
1606-XLS (lower wattage) Less than 240 W Per model datasheet Smaller panel, lighter load profile Total 24 VDC load is well under 10 A with margin
1606-XLS (higher wattage) Above 240 W Per model datasheet Higher current capacity Load exceeds 10 A or 240 W including safety margin

If your 24 VDC load profile — with inrush and safety margin applied — exceeds 10 A or 240 W, the correct choice is a higher-wattage model in the 1606-XLS family. Check current availability for the 1606-XLS240E at LeadTime.ca and contact the team if you need help selecting the right wattage variant.

Expert Verdict: Is the 1606-XLS240E Worth the Premium?

The Allen-Bradley 1606-XLS240E earns its specification in any control panel where the Rockwell platform is the standard and where 24 VDC at 10 A covers the steady-state load with margin. Its wide input range — 100–240 VAC on the AC side and 88–187 VDC on the DC side — means one catalog number works across facilities with different utility configurations, including those with battery-backed DC buses. The UL 508 and CE approvals remove friction from qualification reviews and third-party audits, which matters considerably on OEM machine builds destined for multiple end-user sites. The output adjustment range of 24–28 V with a 30 V maximum gives commissioning engineers a practical tool for compensating for long cable run voltage drop without overstepping device input tolerances. For the buyer profile this part is built for — Rockwell-standardized OEMs, plant engineers maintaining consistent spare part inventories, and panel builders who need predictable documentation — the premium over a generic DIN-rail supply is routinely justified.

Where the 1606-XLS240E falls short is equally clear. If your load is materially above 10 A or 240 W, staying in the 1606-XLS family and moving to the next wattage tier is the straightforward answer. If Class 2-limited circuits are required by the installation code, this supply does not carry that rating and a different device is required — not a workaround. And if the project budget is the primary constraint and there is no Rockwell platform integration requirement, lower-cost third-party 24 VDC DIN-rail supplies at the same current rating are available and can perform acceptably in the right application. The 1606-XLS240E is not the only answer; it is the right answer within a specific technical and commercial context. Also be aware that the suffix matters: 1606-XLS240EA, 1606-XLS240EC, and 1606-XLS240E-D are distinct catalog numbers with different input configurations and approvals — ordering the wrong suffix creates real project delays.

From a procurement standpoint, the 1606-XLS240E is a made-to-stock part at major North American distributors for standard quantities, but large project orders or unusual variants can extend lead times depending on Rockwell production schedules. Working through a specialist industrial distributor rather than a generic online channel means your load calculations can be reviewed against the catalog, the correct suffix confirmed before the order is placed, and realistic stock and lead time data provided before you commit the BOM. View current pricing and lead time for the 1606-XLS240E at LeadTime.ca — available to buyers worldwide.

For volume pricing or to confirm availability before locking in a project BOM, contact the LeadTime.ca team directly — we ship worldwide and can advise on variant selection and stocking options.

What Engineers Need to Know Before Ordering the 1606-XLS240E

Public forum discussion specifically about the 1606-XLS240E is sparse across Reddit r/PLC, PLCTalk, PLCS.net, MrPLC, and Rockwell's own user communities — and that silence is itself informative. Parts that generate heavy forum traffic usually do so because they have systematic quirks, unusual failure modes, or confusing installation requirements. The 1606-XLS240E does not appear to have any of those. At the family level, 1606-series supplies are treated as standard, workhorse components when they surface in discussion at all, without unusual positive or negative emphasis. That is consistent with a supply that does what it says on the datasheet, installs without surprises, and disappears into the panel until it needs to be replaced years later.

The more instructive signal comes from what the absence of community discussion does not tell you: it does not validate that you have the right variant, the right wattage, or the right approvals for your specific installation. The 1606-XLS catalog naming pattern — XLS240E, XLS240EA, XLS240EC, XLS240E-D — is close enough that ordering errors are a genuine risk, even though no specific forum threads documenting such mistakes were found. Similarly, the question of whether 240 W and 10 A is the right sizing for a given panel is not answered by the absence of complaints elsewhere; it requires summing your actual load with inrush factors and applying a margin. These are the decisions where specialist advice adds real value.

When community feedback is limited, the right move is to work with a distributor whose application knowledge fills the gap. LeadTime.ca's team works with controls engineers specifying DIN-rail power supplies across Rockwell-based architectures daily — confirming correct variants, reviewing load margin questions, and flagging Class 2 compliance issues before they become field problems. If there is any uncertainty in your specification, that conversation costs nothing and can prevent a costly wrong-part situation.

Wiring and Installation Overview

The following points cover the key requirements for installing the 1606-XLS240E. Full wiring procedures and dimensional clearance data are in the manufacturer installation instructions — consult that document before beginning physical installation.

  • Mount on DIN-rail in the specified orientation, maintaining the minimum top, bottom, and side clearances called out in the datasheet to ensure adequate convection cooling airflow through the housing.
  • Wire AC input to L, N, and PE terminals (or DC input to the correct polarity terminals for 88–187 VDC operation) using wire sizes and terminal torque values from the datasheet; install an external fuse or circuit breaker on the primary input as required by the installation instructions and applicable electrical code.
  • Wire the 24 VDC output to the main control bus, observing polarity; account for voltage drop on cable runs to remote loads and use the output adjustment potentiometer (24–28 V range, 30 V maximum) to compensate at commissioning if necessary.
  • If DC-OK signaling is used, connect the DC-OK output to the PLC input or diagnostic circuit as part of the panel wiring before commissioning.
  • Before energizing, perform a visual inspection of all input and output connections for correct polarity, proper torque, and absence of wiring errors; verify that no downstream loads are connected during initial power-up if load isolation is part of your commissioning procedure.

Wrong-Part Prevention Checklist

Before finalizing the order for the Allen-Bradley 1606-XLS240E, verify each of the following — this checklist is drawn directly from engineering review of the product family and common specification errors:

  1. Confirm required output: 24 VDC nominal and up to 10 A (240 W) is sufficient for all steady-state and inrush loads.
  2. Verify input supply type and range (single-phase 100–240 VAC and/or DC input 88–187 VDC are acceptable for the installation).
  3. Check that 24 VDC, 10 A is not a NEC Class 2 requirement (this model is typically above Class 2 power; verify code needs before ordering).
  4. Ensure the catalog number is exactly 1606-XLS240E (not XLS240EA, XLS240EC, XLS240E-D, or other wattage models).
  5. Confirm DIN-rail space, mounting orientation, and ventilation clearances fit the panel layout.
  6. Check environmental conditions (temperature range, pollution degree, overvoltage category) against the datasheet for the installation site.

If any item on this checklist raises a question, contact the LeadTime.ca team before ordering — we can confirm the correct variant and advise on alternatives if the 1606-XLS240E is not the right fit.

Frequently Asked Questions

Can the 1606-XLS240E be powered from a DC source, and what voltage range is supported?

Yes. The 1606-XLS240E accepts a DC input in the range of 88–187 VDC continuous, with a nominal range of 110–150 VDC. This makes it usable in applications where the panel is fed from a battery-backed DC bus or a DC distribution system rather than AC mains — a useful capability that not all DIN-rail supplies at this price point offer.

How much can the output voltage be adjusted, and is it safe to run above 24 V?

The output is adjustable from 24 VDC up to 28 VDC using the multi-turn potentiometer on the front of the unit, with an absolute maximum of 30 V. Adjustment above 24 V is appropriate for compensating voltage drop on long cable runs, but before trimming upward, confirm that all connected devices can tolerate the higher voltage within their rated input specifications. Do not exceed 30 V under any circumstances.

Is the 1606-XLS240E rated as a Class 2 power supply for NEC or CEC compliance?

No. At 240 W and 10 A, the 1606-XLS240E operates above the NEC Class 2 power threshold. If your installation requires circuits to be classified as Class 2 limited power under NEC Article 725, you must specify a power supply that carries an explicit Class 2 rating and design the downstream circuits accordingly. Using the 1606-XLS240E in that context without verification creates a code compliance issue.

Can I parallel two 1606-XLS240E units to get 20 A or provide supply redundancy?

Paralleling DIN-rail power supplies for redundancy or increased current requires the supplies to support active current sharing or load-sharing operation — this is not a universal capability and must be confirmed from the manufacturer's documentation for this specific model. If redundancy is a firm requirement, verify whether the 1606-XLS family supports a redundancy module or parallel operation, or consider a supply architecture that explicitly supports this topology.

What external protection is required on the input side of the 1606-XLS240E?

The installation instructions require an external fuse or circuit breaker on the AC or DC input — the supply does not incorporate primary-side overcurrent protection internally. Wire sizing and fuse or breaker ratings must be selected per the datasheet values and applicable electrical code for the installation country. Failure to provide external primary-side protection is both a safety issue and a warranty consideration.

Is the 1606-XLS240E suitable for installation in light commercial or residential environments, or only industrial panels?

The 1606-XLS240E carries EMC approvals including EN 55011/55022 Class B, which covers residential, commercial, and light industrial environments in addition to industrial settings. UL 508 and CE approvals support use in industrial control panels. Verify the specific approval requirements for your installation type and jurisdiction against the full datasheet before specifying for a non-industrial application.

Why Order From LeadTime.ca

  • Ships worldwide — the 1606-XLS240E and related 1606-XLS variants are available to buyers across North America and internationally, not limited to any single region.
  • Specialist distributor with application knowledge in Allen-Bradley and Rockwell Automation power supplies — can confirm correct variant suffix and flag sizing issues before the order is placed.
  • Up-to-date lead time and stock status — avoids the risk of committing a BOM to a part that is on extended lead time at the time of order.
  • Volume and OEM pricing available — contact the team directly for project quantities or multi-panel BOM requirements.
  • Hard-to-find variants sourced — including less common 1606-XLS suffix variants that may not be stocked at general-purpose distributors.

At-a-Glance Summary

  • Catalog number: Allen-Bradley 1606-XLS240E — confirm exact suffix before ordering (not XLS240EA, XLS240EC, or XLS240E-D).
  • Output: 24 VDC nominal, adjustable 24–28 V (30 V maximum), 10 A continuous, 240 W at 24 V and 252 W at 28 V.
  • AC input: 100–240 VAC, 50/60 Hz wide-range single-phase.
  • DC input: 88–187 VDC continuous (nominal 110–150 VDC).
  • Mounting: DIN-rail, convection-cooled — clearances and orientation must follow datasheet requirements.
  • Approvals: UL 508, CE, EMC EN 55011/55022 Class B — industrial and light commercial use.
  • Not a Class 2-rated supply — verify NEC/CEC circuit classification requirements before specifying.
  • External primary overcurrent protection (fuse or breaker) is required — not built in.
  • Best fit: Rockwell-standardized OEM panels, Allen-Bradley PLC architectures, applications needing both AC and DC input flexibility.
  • Available worldwide through LeadTime.ca — contact for volume pricing and lead time confirmation.

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