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Omron Power Supplies — S8VK, S8VS & S8FS

Omron DIN-Rail Power Supplies: S8VK, S8VS, S8FS Selection

A control panel lives or dies by its 24 VDC supply. Omron's DIN-rail line splits into three families: S8VK is the general-purpose standard for PLC, sensor and relay feeds; S8VS adds a front status display and monitoring for panels where you want supply health visible at a glance; S8FS is the slim-width series for space-constrained cabinets. All share the DIN-rail clip form factor and screw terminals, and cover the usual 24 VDC range from a few amps up to panels with dozens of devices.

Sizing is the whole game. Add up every device's steady current, add inrush margins (some devices draw several times their running current at switch-on), then keep 20–30% headroom for expansion and hot-cabinet derating. An undersized supply runs hot and browns out the PLC on a cold morning; a massively oversized one wastes money and panel space. If the panel already has a failed supply, match its output current and physical width so the replacement drops onto the same rail position.

This category also stocks legacy power for older Omron racks — C200HW-PA and CS1W-PA series power supplies for maintaining C200H/CS1/CJ installations that are no longer in active production. Send the installed part number and we will confirm the replacement that keeps the rack alive.

Popular Series and Buying Notes

Omron Power Supplies Omron C200HW-PA & CS1W Legacy Power and Cabling Omron NX-Series Safety & I/O Omron CJ-Series PLCs Omron CK3M / CK3W Axis & I/O Units
  • Use exact SKU matching for replacements, especially when terminal type and communication suffixes differ.
  • For power supplies projects, sharing machine model, load profile, and installation environment helps us recommend the right variant faster.
  • Ask for quotation with quantity tiers to compare unit pricing and lead-time options in one response.
  • Most of these models are around 4 I/O — tell us your point count and we will confirm the exact variant.

30 products available in this category.

Browse All 12 SKUs in power supplies
C200HW-PA204 C200HW-PA209R CJ1W-PA205R CK3W-PD048 KM-N3-FLK NJ-PA3001 NJ-PD3001 NX-PD1000 NX-PF0630 S8FS-C10024J S8FS-G03024CD S8FS-G05024CD

Why Choose Omron power supplies?

Genuine Omron power supplies in stock: S8VK, S8VS and S8FS 24 VDC units, plus legacy C200HW-PA/CS1W-PA rack power. Tell us your panel's total load and we confirm capacity, headroom and any redundancy setup.

  • High-efficiency designs that minimize energy loss and reduce cabinet heat
  • A wide operating temperature range for dependable start-up and operation
  • Compact, DIN-rail mountable form factors to save valuable panel space
  • Comprehensive protection against overload, over-voltage, and short circuits
  • Global safety standard approvals for worldwide deployment
  • Push-In Plus technology for quick, vibration-resistant wiring
omron din rail power supplies

Frequently Asked Questions

What is the difference between S8VK, S8VS and S8FS power supplies?
S8VK is the standard general-purpose series — the default choice for most 24 VDC panel feeds. S8VS adds a front-panel display and monitoring functions, useful when operators or maintenance need to see the supply state without a meter. S8FS is the slim, narrow-body series for cabinets where DIN-rail width is the constraint. All three deliver regulated 24 VDC; choose by features and width, not by output quality.
How do I size a 24 VDC power supply for my panel?
Sum the steady-state current of every PLC, sensor, relay, HMI and communication device on the 24 V rail. Add the inrush current of the largest switching device, then apply 20–30% headroom and check the datasheet derating curve for your cabinet temperature — a supply rated at 5 A in free air may deliver less in a hot enclosure. If in doubt, choose the next size up: headroom costs little, a brown-out costs a shift.
What replaces a C200HW-PA209 or CS1W-PA power supply?
Those are legacy Omron rack power supplies for C200H/CS1/CJ installations, long out of production. We stock the surviving C200HW-PA and CS1W-PA models for direct replacement, and where a rack is being rebuilt, we can propose a current S8VK feed with a compatible wiring conversion. Send the rack CPU and power model and we will confirm the exact replacement.
Can I run two power supplies in parallel for redundancy?
Yes, with the right setup: redundant diode modules (or supplies with built-in redundancy diodes) let two supplies share the load and keep the rail alive if one fails. Plain parallel wiring without diode OR-ing is not recommended — slight output differences cause one supply to carry everything and the other to sit unloaded. Tell us your redundancy requirement and we will quote the supply plus the diode module together.