The EATON STWC is a ceiling mount synchronised strobe from the audible and visual notification devices of the Eaton UL range. Devices in this range save up to 48% current draw compared with similar products, per the catalogue, and have voltage test points for quick checks.
In short
- Type: Ceiling Mount Synchronised Strobe.
- Visual, synchronised.
- Dimensions: Ø166 × 34 mm.
- Order code: CN127488.
How it is used
It connects to a panel NAC or a sounder controller and operates on alarm per the panel programming. The sync option keeps multiple devices flashing together for a clearer visual signal.
Related items
- The ULCSC354 sounder controller for high-current devices.
Technical data
| Item | Value |
|---|---|
| Model / order code | STWC / CN127488 |
| Type | Ceiling Mount Synchronised Strobe |
| Mounting | Ceiling |
| Dimensions | Ø166 × 34 mm |
| Approval | Eaton UL listed range |
The critical point: load and intensity
The number of devices per circuit is set by the panel circuit current limit; visual and audible output are selected per the project design and NFPA 72.
General notes on notification devices
- Audibility: in public mode the alarm must be at least 15 dBA above the average ambient sound level, per NFPA 72.
- Synchronisation: where more than two strobes are in one field of view they must flash in sync, to reduce visual disturbance.
- Strobe candela and spacing are chosen from room size and the NFPA 72 tables; strobes are required in public areas, public toilets and other spaces per the code.
- Voltage drop is calculated on every notification circuit so the last device stays within its operating range, within the circuit’s current limit at the panel.
General engineering notes
These points are general principles from NFPA 72 and common design practice, not from the EATON datasheet. The final decision rests with the project’s approved designer per the adopted edition of the standard and the authority having jurisdiction.
Installation steps
- Mount the device on the ceiling with the suitable box.
- Wire the circuit observing polarity and supervision.
- Set the device per the design and use the voltage test points to check.
- Test operation and synchronisation from the panel.
Common mistakes
- Exceeding the NAC current limit.
- Mixing unsynchronised strobes in the same field of view.
- Installing an indoor device outdoors or in a wet area.
Inspection and maintenance
Before any test or maintenance, notify the owner, the monitoring station and everyone affected, as testing may operate alarms or linked outputs. The owner is responsible for inspection, testing and maintenance per NFPA 72 and the authority having jurisdiction, preferably by a qualified company.
Files and ordering
The EATON UL catalogue is attached. When ordering, state STWC (CN127488).
How to order
Use the “Build your order” section on this page: add every model and quantity, then send the whole order by email or WhatsApp. It reaches us as a tidy PDF request sheet and we contact you with the quotation.
FAQ
What is synchronisation for?
It makes multiple strobes flash at the same moment, reducing visual disturbance and improving the signal.
References
- EATON UL catalogue — Datasheet (attached)
- UL 464 — Audible Signaling Devices
- NFPA 72 — National Fire Alarm and Signaling Code
This page is general information to help with selection and ordering, taken from the attached EATON datasheet. Final design is set by the project’s approved designer; the project specification, the consultant’s drawings and the latest datasheet revision govern.
