Omron S8FS-G05024CD — 24V 50W DIN-Rail Power Supply Review

By Abdullah Zahid
14 min read
Omron S8FS-G05024CD 24V 50W switch mode power supply DIN-rail mount industrial control panel

Omron S8FS-G Switch Mode Power Supply, 50 W, 24 V, Covered, DIN-Rail Mount — S8FS-G05024CD Specs, Review and Selection Guide

Controls engineers and panel builders specifying a 24 V DC DIN-rail power supply for a small machine, retrofit panel, or distributed I/O drop have likely landed on the Omron S8FS-G05024CD as a candidate. This single-output switch mode power supply delivers 24 V DC at approximately 2.2 A continuous across a 100–240 VAC universal input range, fits a standard 35 mm DIN rail, and carries UL 508, CSA C22.2, and EMC Class B approvals that satisfy most North American and European industrial panel requirements. The question this guide answers is whether the S8FS-G05024CD is the right 50 W unit for your specific application — or whether a different wattage, voltage variant, or Omron family is a better fit.

If you have already confirmed this is the correct part, check current pricing and availability for the S8FS-G05024CD at LeadTime.ca — we ship worldwide.

Who Should Buy the S8FS-G05024CD — and Who Should Not

This supply is the right choice when your panel or machine meets all of the following criteria:

  • You need a 24 V DC nominal output — not 5 V, 12 V, 15 V, or 48 V
  • Your total continuous load, including margin for inrush and future expansion, stays within approximately 2.2 A at 24 V DC (50 W class)
  • DIN-rail mounting on a 35 mm rail is required — specifically the CD variant, not a base or screw-mount version
  • Your site uses single-phase 100–240 VAC mains — this supply does not accept 480 VAC direct feed
  • Your project requires UL 508 listing and CSA C22.2 compliance for North American panel approval
  • Operating ambient temperature will not exceed the rated range, or you have confirmed derating headroom for the highest expected cabinet temperature

If your load exceeds the 50 W envelope, or you need advanced monitoring outputs, redundancy support, or a more compact footprint, consider other wattage variants in the S8FS-G family or the Omron S8VK series — both are covered in the variant comparison section below.

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What the S8FS-G05024CD Actually Does in an Industrial Control System

The S8FS-G05024CD converts single-phase AC mains voltage — anywhere from 100 to 240 VAC at 50 or 60 Hz — into a regulated 24 V DC output rated at approximately 2.2 A continuous, delivering 50 W of usable DC power. That is the functional job description. In practical panel terms, it is the component that keeps your PLC running, your I/O modules scanning, your proximity sensors detecting, and your safety relays holding in — all from one compact rail-mounted unit inside your enclosure.

The S8FS-G series carries a covered, enclosed metal housing with a terminal block cover and front cover, making it appropriate for industrial environments where contamination and accidental contact are real concerns. The wide 100–240 VAC input range means the same unit works on North American 120 VAC panels and 240 VAC panels without any voltage selector switch — a practical advantage in multi-site OEM deployments. Built-in protections include overload, overvoltage, and thermal protection as documented by Omron, with recovery behavior per the manufacturer's datasheet. The unit is certified to UL 508 and CSA C22.2, meets EN standards, and is classified EMC Category Class B under EN 61204-3, covering industrial and light commercial environments.

The S8FS-G family spans 15 W to 600 W across multiple output voltages including 5 V, 12 V, 15 V, 24 V, and higher, which means the S8FS-G05024CD sits at a specific, deliberate point in a well-structured product line. Omron specifies the family for ambient operation up to approximately 70 °C subject to derating, supporting use in warm control cabinets where many competing economy supplies begin to derate aggressively.

Typical System Architecture: Where This Supply Fits on the DIN Rail

The S8FS-G05024CD sits between the panel's incoming circuit protection and the 24 V DC distribution bus — converting mains to DC before power fans out to every low-voltage device in the enclosure.

  • Incoming AC mains feeds through a main disconnect and a dedicated branch circuit breaker or fuse sized for the power supply's AC input
  • The S8FS-G05024CD mounts on the 35 mm DIN rail, receives AC at its L and N input terminals, and outputs regulated 24 V DC at its output terminals
  • The 24 V DC positive and 0 V rails connect to a terminal block distribution strip or directly to downstream device groups
  • PLC CPU, I/O modules, HMI, and 24 V relay coils draw from the common 24 V DC bus, each ideally protected by individual fuses or a 24 V circuit breaker
  • Sensors, photoeyes, and proximity switches connect to the same 24 V supply rail, with the total current draw of all devices remaining within the 2.2 A continuous rating

Typical Applications and Industries for the S8FS-G05024CD

The 50 W / 2.2 A output class is a common fit for small to mid-size control panels in machine tools and CNC enclosures, where the PLC, I/O, and sensor bus collectively draw modest current and panel space is at a premium. The DIN-rail form factor and covered housing are well matched to machine tool environments where cutting fluid contamination and vibration are concerns.

Semiconductor and electronics manufacturing equipment is another natural application. These environments demand tight regulatory compliance — UL 508 listing and CSA C22.2 certification satisfy most equipment approval requirements — and the corrosion-resistant aluminum and stainless steel housing holds up in cleanroom-adjacent utility enclosures.

General factory automation panels, packaging machinery, and small process skids commonly use 24 V / 50 W supplies at distributed I/O drops or for auxiliary control circuits. The S8FS-G05024CD is a clean fit for these applications when the load budget stays within the 2.2 A envelope. It is also a straightforward retrofit choice where an aging 24 V DIN-rail supply needs replacement and the new unit must match existing wiring, mounting position, and approvals without triggering a full panel re-evaluation.

Application Typical Deployment
CNC machine tool control panel Powers PLC, I/O, and proximity sensors inside the machine enclosure
Semiconductor equipment utility panel 24 V DC source for control relays, sensors, and interlocks in cleanroom-adjacent enclosures
Packaging machine control cabinet Local 24 V supply for servo drives' logic circuits, sensors, and HMI backplane
Distributed I/O drop panel Standalone 24 V source at remote I/O node to avoid long DC runs from main panel
Panel retrofit / MRO replacement Drop-in replacement for aging 24 V DIN-rail supply on existing 35 mm rail with same approvals
Small process skid control panel Powers PLC and field instruments on a skid-mounted enclosure with universal AC input

Key Specifications Worth Knowing Before You Order

Parameter Value Notes
Output voltage 24 V DC nominal Single output; limited output voltage trim per datasheet
Output current Approx. 2.2 A continuous Confirm exact rating in current Omron datasheet
Output power 50 W Rated at specified conditions; verify derating at elevated temperature
Input voltage range 100–240 VAC, 50/60 Hz Single-phase universal; no 480 VAC direct input
Mounting DIN-rail, 35 mm (CD type) CD suffix = DIN-rail; C suffix = base/screw mount — do not confuse
Operating temperature Approx. -20 to 70 °C Subject to derating curve; verify for sealed or warm enclosures
Altitude Up to approx. 3000 m Confirm exact value in Omron datasheet
Safety approvals UL 508, CSA C22.2, EN standards Confirm exact standard revision for project compliance documentation
EMC classification Class B (EN 61204-3) Suitable for industrial and light commercial environments
Housing Aluminium / stainless steel, covered terminals Corrosion-resistant; front cover and terminal block cover included

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

S8FS-G05024CD vs Other S8FS-G Variants: Which One Do You Actually Need?

Model Variant Output Power Output Voltage Mounting Style Best Fit Application
S8FS-G05024CD 50 W 24 V DC DIN-rail (CD) Small to mid-size panels, sensors, PLC I/O
S8FS-G05024C 50 W 24 V DC Base / screw mount (C) Panel-mount installations without DIN rail
S8FS-G03024CD 30 W 24 V DC DIN-rail Very light loads, small sensor groups
S8FS-G10024CD 100 W 24 V DC DIN-rail Mid-size panels with multiple I/O racks or actuators
S8FS-G15024CD 150 W 24 V DC DIN-rail Larger panels, multiple drives or heavy relay loads
S8FS-G (12 V variants) 15–600 W range 12 V DC DIN-rail and panel mount Legacy or specialist 12 V DC control circuits
S8VK series Various 24 V DC DIN-rail Applications requiring more compact housing or enhanced diagnostics

If your load budget sits above the 2.2 A rating of the S8FS-G05024CD, the 100 W or 150 W S8FS-G variants are the natural step-up within the same family — check current availability and confirm the right variant at LeadTime.ca.

Expert Verdict: Is the S8FS-G05024CD Worth Buying?

The S8FS-G05024CD is the right choice for controls engineers and panel shops building small to mid-size machines or control panels where the 24 V DC load fits comfortably within 2.2 A continuous. The combination of a universal 100–240 VAC input, UL 508 and CSA C22.2 certification, EMC Class B classification, and a covered metal housing gives this unit a compliance and durability profile that satisfies most North American industrial panel requirements without requiring additional justification to customers or inspectors. For OEMs standardizing on Omron across their machine platforms, the S8FS-G05024CD fits neatly into an existing ecosystem of PLCs, I/O, and safety components, simplifying documentation and spare-parts management.

Where this supply has real limits: it is not the right tool for high-load panels, highly compact enclosures where every millimetre of rail space matters, or applications requiring integrated DC OK signalling contacts, active redundancy support, or advanced diagnostics. For those requirements, the higher-wattage S8FS-G variants handle the power scaling, while the Omron S8VK series addresses the more feature-intensive end of the market. Buyers who find the S8FS-G05024CD physically larger than expected compared to ultra-compact competitor models at the same wattage should evaluate whether the S8VK series better fits the enclosure constraint. Be honest with your load calculation — if you are consistently operating near 2.2 A, move to the 100 W variant and preserve the headroom your system deserves.

From a procurement standpoint, the S8FS-G05024CD benefits from being part of a large, well-established Omron product family with broad distributor support across North America. That translates into realistic stock availability, known lead time patterns, and the ability to cross-reference within the family quickly when a specific wattage is on back-order. Buying through a specialist industrial automation distributor matters here — not because the product is obscure, but because a knowledgeable distributor can confirm the CD versus C suffix distinction, validate CSA compliance documentation for Canadian project submittals, and give you an accurate lead time answer before you commit your build schedule. View current pricing and stock status for the S8FS-G05024CD at LeadTime.ca — we ship worldwide.

For volume pricing or to confirm lead time before committing to a build, contact the LeadTime.ca team directly — we ship worldwide.

What Engineers Need to Know Before Ordering the S8FS-G05024CD

Model-specific field discussion on the S8FS-G05024CD is sparse in automation forums — most community experience exists at the broader Omron S8 series level. That family-level signal is consistently positive: Omron industrial power supplies are repeatedly described as reliable, fit-and-forget units in standard automation panels, valued for their broad distributor availability and compatibility with Omron PLCs and I/O. When practitioners in communities like PLCTalk, PLCS.net, and Reddit's automation channels discuss Omron PSUs, the conversation focuses far more on correct part selection than on field failures — which itself says something about the underlying product quality.

The single most common ordering mistake reported across these communities is part number confusion within the S8FS-G family. The model codes for different voltage variants and mounting styles look similar at a glance, and buyers have reported receiving 12 V or 48 V units when they needed 24 V, or receiving a base-mount C variant when the panel called for a DIN-rail CD version. A second recurring theme is physical size: engineers accustomed to ultra-compact DIN-rail supplies from other manufacturers sometimes find Omron S8FS-G units occupy more rail space than expected, which matters in tight enclosures. A third reported issue is derating in hot cabinets — the S8FS-G family is rated to approximately 70 °C with derating, but engineers who skip the derating curve and run the supply near its current limit in a warm sealed enclosure have reported intermittent trips and premature aging.

Because community data for this specific model is limited, the most useful thing a buyer can do before placing the purchase order is consult a specialist distributor who handles Omron regularly. LeadTime.ca can confirm the correct suffix for your mounting requirement, verify that the CSA approval documentation matches what your project submittal needs, and advise on realistic lead time so your build schedule does not stall on a single component. The checklist below captures the specific verification steps that prevent the most common ordering errors on this part.

Wiring and Installation Overview

  • Mount the S8FS-G05024CD upright on a 35 mm DIN rail, confirm the latch fully engages, and maintain recommended clearance above and below the unit for airflow — do not pack other heat-generating components directly against the PSU without reviewing the derating curve
  • Connect protective earth from the panel ground bar to the PSU earth terminal before connecting any AC input wiring — correct grounding is required both for safety and for EMC Class B compliance
  • Feed AC input from a dedicated, appropriately rated external circuit breaker or fuse to the L and N input terminals; the S8FS-G05024CD requires external input protection as specified in Omron documentation
  • Connect 24 V DC output using conductor size recommended in the Omron datasheet; use ferrules on stranded conductors, tighten terminal screws to specified torque, and install the terminal block cover and front cover before energizing
  • Before connecting sensitive loads, energize the AC supply, measure DC output voltage with a multimeter, and verify the output is within the specified 24 V range; if the unit includes an output adjustment trimmer, set it per datasheet instructions before applying load

Wrong-Part Prevention Checklist Before You Place the Order

Run through each item against your BOM and panel drawings before submitting the purchase order for the S8FS-G05024CD:

  1. Confirm required output voltage is 24 V DC, not 5, 12, 15, or 48 V.
  2. Confirm 50 W / 2.2 A output is sufficient for total and peak load (with margin).
  3. Verify mounting style: you specifically need DIN-rail mount (CD type), not base/screw mount only.
  4. Check AC input range against site power (100–240 VAC single-phase, no 480 VAC direct feed).
  5. Confirm ambient temperature range and panel cooling support operation at the highest expected temperature.
  6. Confirm approvals (UL, CSA, EN) meet the end user or project specification.
  7. Verify physical dimensions and terminal orientation fit your existing panel layout.
  8. Check whether you need multiple outputs or adjustable voltage; this is a single-output unit with limited trim.

If any item on this list does not resolve cleanly against your project documentation, contact the LeadTime.ca team before ordering — we can confirm the right variant and cross-reference within the S8FS-G family in minutes.

Frequently Asked Questions

What is the difference between the S8FS-G05024C and the S8FS-G05024CD?

The suffix distinguishes the mounting style. The S8FS-G05024C is the base or screw-mount version, while the S8FS-G05024CD includes the DIN-rail mounting clip for installation on a standard 35 mm DIN rail. Both share the same 24 V DC, 50 W electrical specification, so ordering the wrong suffix means the correct electrical unit physically cannot be installed correctly in your enclosure without modification.

How much current headroom should I leave above my calculated 24 V DC load?

A common engineering practice is to size the power supply so the continuous load does not exceed approximately 70–80% of the rated output current during normal operation. For the S8FS-G05024CD at approximately 2.2 A, that means planning for a steady-state draw of no more than roughly 1.5–1.7 A if you want comfortable operating margin for inrush and future I/O additions. If your load calculation already sits above that band, the 100 W S8FS-G variant is a more appropriate selection.

What happens if the load exceeds the rated 2.2 A — does the supply latch off or auto-recover?

The S8FS-G series includes overload and overcurrent protection with recovery behavior as documented in the Omron datasheet. The specific behavior — whether hiccup mode, constant current limiting, or auto-recovery after the overload clears — should be confirmed in the current Omron product documentation for the S8FS-G05024CD before designing an application that may see regular overload events.

Can I mount the S8FS-G05024CD on its side or inverted if panel space is tight?

Omron specifies mounting orientation for the S8FS-G series in the product datasheet, and deviating from the specified orientation can affect cooling airflow and thermal performance. Before mounting the unit in a non-standard orientation, consult the Omron installation documentation to confirm whether alternative orientations are permitted and whether any derating applies.

Can I substitute the S8FS-G05024CD with an S8VK series unit without rewiring the panel?

The S8VK series operates at 24 V DC and shares DIN-rail mounting, but terminal layout, physical dimensions, and specific wiring access points differ between the two families. A direct mechanical drop-in substitution without verifying dimensions, terminal positions, and conductor routing should not be assumed. Review the datasheets for both models against your panel layout drawings before approving a cross-family substitution.

Does the S8FS-G05024CD require an external input fuse or breaker, or is one built in?

Omron's documentation for the S8FS-G series specifies the use of an external circuit breaker or fuse on the AC input side as part of the installation requirements. The internal protection features — overload, overvoltage, and thermal — are output-side protections, not a replacement for upstream input protection. Sizing the external protective device correctly per the Omron datasheet recommendations is required for both safety compliance and proper UL 508 panel listing.

Why Order the S8FS-G05024CD Through LeadTime.ca

  • LeadTime.ca ships worldwide — not limited to any single country or region, and experienced with Canadian and international customs documentation
  • Specialist automation distributor staff can confirm the correct S8FS-G variant, mounting suffix, and approval documentation for your specific project requirements before you place the order
  • Access to realistic lead time and stock information across multiple Omron supply channels, reducing the risk of a build delay caused by a single back-ordered SKU
  • Volume pricing available for OEM and panel shop orders — contact the team directly for project-scale quantities

At-a-Glance Summary

  • Output: 24 V DC nominal, approximately 2.2 A continuous, 50 W rated
  • Input: 100–240 VAC single-phase, 50/60 Hz universal range — no 480 VAC direct feed
  • Mounting: 35 mm DIN-rail (CD suffix) — not the same as the base-mount C variant
  • Operating temperature: approximately -20 to 70 °C, subject to derating curve
  • Altitude: up to approximately 3000 m
  • Approvals: UL 508, CSA C22.2, EN standards, EMC Class B (EN 61204-3)
  • Housing: aluminium and stainless steel covered enclosure with terminal block cover and front cover
  • Part of the S8FS-G family spanning 15 W to 600 W across 5 V, 12 V, 15 V, 24 V, and higher voltages
  • Best fit: small to mid-size control panels, machine tools, semiconductor equipment, distributed I/O drops, and DIN-rail retrofits within the 50 W load envelope
  • Not the right fit: loads consistently above 2.2 A, applications requiring DC OK contacts, redundancy modules, or ultra-compact housing

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