Description
Product Introduction
The Omron S8FS-G10024C is a 100W compact, covered-type switch-mode power supply engineered for high reliability in industrial control panels. Operating on a universal input voltage range of 100 to 240 VAC, it delivers a clean, regulated 24 VDC output at up to 4.5 Amps to power PLCs, sensors, human-machine interfaces (HMIs), and intermediate relays.
Unlike standard open-frame power supplies vulnerable to metallic dust and accidental touch, the S8FS-G10024C features a enclosed metal casing (suffix “C”) with upgraded transformer insulation to resist abnormal input surges. Designed with high noise immunity and superior thermal dissipation, it provides stable voltage regulation even under harsh electrical environments without demanding extra cabinet space.
Key Technical Specifications
| Parameter | Specification |
| Output Voltage | 24 VDC |
| Rated Output Current | 4.5 A |
| Power Output | 100 W |
| Input Voltage Range | 100 to 240 VAC (85 to 264 VAC allowable) / 120 to 370 VDC |
| Efficiency | 88% typical (at 200 VAC input) |
| Voltage Adjustment Range | -10% to +15% (via front-panel trimmer) |
| Overload Protection | Yes (105% to 160% of rated current, automatic reset) |
| Overvoltage Protection | Yes |
| Cooling Method | Natural air convection (Fanless) |
| Operating Temperature | -20°C to 70°C (-4°F to 158°F) with derating |
| Enclosure Construction | Covered metal frame (IP20 terminal cover included) |
Application Scenarios & The “Trench” Experience
It’s 4:10 AM during a continuous bottling run. A short circuit on a 24V sensor field cable trips a sub-standard power supply, burning out its internal primary fuse. The whole conveyor line dies, bringing packaging to a standstill. Rewiring the entire cabinet panel to fit a larger or differently shaped power supply wastes critical maintenance hours. You need a drop-in S8FS-G10024C unit—built with rugged short-circuit protection—that mounts straight to your existing footprint, wires up quickly, and restores main 24VDC control bus power before the day shift arrives.
- Automated Assembly Lines – Main 24V Control Bus – Drives DC input modules on PLCs, safety light curtains, and proximity sensors across automated cells.
- Control Panel Building – HMI & Field Instrument Power – Provides ripple-free 24 VDC power to sensitive touch panels, transmitters, and signal converters.
- Packaging & Conveyor Systems – Solenoid & Relay Control – Handles inductive kickback surges from small solenoid valves and 24V interposer relays.
Field Case Study:
An automotive stamping facility in Indiana experienced frequent power supply failures on an automated inspection station due to heavy ambient vibration and line voltage sags. The existing commercial supply repeatedly shut down on thermal trip. We supplied a factory-sealed surplus S8FS-G10024C unit. The maintenance technician mounted it directly using the standard chassis screw holes, adjusted the output voltage potentiometer to compensate for long cable drop, and brought the vision inspection cell back online—operating flawlessly through heavy shift cycles.
S8FS-G10024C
S8FS-G10024C
Transparency SOP: Quality Assurance & Testing
We don’t just ship boxes; we test them on actual load test benches.
- Inbound Physical Inspection: Thorough verification of chassis integrity, checking terminal block screw threads, inspecting cover metalwork, and verifying intact OEM labels.
- AC Line Input & Pre-Charge Test: Connecting the unit to a variable AC autotransformer (Variac) across 100–240 VAC to confirm internal soft-start relay operation and zero inrush damage.
- Full-Load DC Output Sweep: Loading the 24V output to full 4.5A current rating using an electronic DC load bank to measure voltage stability, ripple noise, and thermal dissipation over time.
- Overcurrent & Short-Circuit Triggering: Deliberately tripping the output protection to verify automatic hiccup/recovery mode once the fault is cleared.
- ESD Protection & Packaging: Complete ESD clearing, sealing in anti-static protective bags, and packing in shock-absorbing foam prior to dispatch.
The Veteran’s Tech Trap Guide
⚠️ Mind the Thermal Derating Curve:
While the S8FS-G series is rated to work up to 70°C, natural convection cooling means output capacity drops significantly above 50°C. If your enclosure runs hot, don’t pull a full 4.5A continuous load out of this 100W power supply without adding forced-air cooling or upgrading to a higher-wattage model (like the S8FS-G15024C).
❗ Watch the Terminal Screws (Finger-Protection Covers):
The “C” suffix model comes with protective terminal covers. Take care when using thick gauge wire ferrules. Over-torquing the terminal screws with an oversized screwdriver can crack the plastic terminal barrier housing.
⚠️ Check AC Input Terminal Wiring (L vs. N vs. Ground):
Always verify your Line (L), Neutral (N), and Ground (FG) wiring connections before closing the breaker. Connecting AC line voltage to the output 24V (+V/-V) terminals will instantly destroy the secondary rectifiers and internal filter capacitors.
❗ Trim Voltage Adjustment:
If your installation has long DC wire runs causing voltage drop at distant sensors, use the front-panel potentiometer (V.ADJ) to slightly boost the output (up to ~27.6 VDC). However, make sure you measure voltage directly at the load to avoid over-voltaging local devices.
Frequently Asked Questions
Q: What is the difference between S8FS-G10024C and S8FS-G10024CD?
A: The “C” suffix indicates a covered metal enclosure with standard bottom/side screw mounting holes. The “CD” suffix includes a factory-installed DIN-rail mounting bracket on the back of the unit.
Q: Can I run two S8FS-G10024C power supplies in parallel to get 9 Amps?
A: Direct parallel operation for capacity expansion is not recommended on standard S8FS-G units without external diode ORing blocks (such as the Omron S8M or S8VK-R series). Without decoupling diodes, small differences in output voltage will cause one unit to supply all the current, triggering overload shutdown.
Q: Does this power supply support 3-phase AC input?
A: No. The S8FS-G10024C requires single-phase AC input (100–240 VAC across L and N) or high-voltage DC input (120–370 VDC).
Q: Can I hot-swap this power supply under load?
A: No. Always disconnect the main AC supply breaker before attaching or removing input/output wiring to avoid dangerous electrical shock or arc flashes at the terminal block.
Q: Why buy factory surplus stock instead of waiting for factory backorders?
A: Lead times for industrial components can freeze critical maintenance schedules. Purchasing factory-sealed surplus inventory provides identical original OEM quality immediately, allowing you to bring downed production lines back online without waiting weeks for supply chain deliveries.
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