The Hochiki HSC-221L is a 6-inch conventional detector base with an integrated alarm LED. It runs on 24 VDC and operates on 2-wire circuits.
First, the base provides a current-limited circuit for the detector head. Then the latching annunciator keeps the LED lit after the alarm condition clears. As a result, technicians can find tripped devices fast.
How the Hochiki HSC-221L Works
The HSC-221L latches the LED on alarm and holds it until panel reset. In addition, it mounts on a 4-inch octagonal or 4-inch square electrical box. Therefore, retrofits onto existing wiring are simple.
Furthermore, the latching circuit means the alarm indicator stays visible even after the smoke clears. Specifically, this matches the typical commissioning workflow during system testing.
Electrical Specifications
- Operating voltage: 24 VDC
- Alarm current: 37–45 mA at 24 V (57 mA max)
- Compatibility ID: HB-63
- Wiring: 2-wire
- Base diameter: 6 inches
- Box mounting: 4-inch octagonal or 4-inch square
- Listings: UL Listed, CSFM 7300-0410-0132
Color and Compatible Heads
Also, the base ships in bone (standard) or white with the “W” suffix. For compatible detector heads, see the Hochiki conventional compatibility chart. However, LED-output annunciation devices must stay under 20 mA at 24 VDC.
Order the Hochiki HSC-221L
Life Safety Consultants stocks the Hochiki HSC-221L alongside compatible detector heads and end-of-line devices. To order or confirm panel compatibility, call 1-888-557-0558. Alternatively, email sales@lifesafetycom.com.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 1.6 lbs |
|---|---|
| Dimensions | 1 × 6 × 6 in |
| Condition | New |
| Manufacturers | Hochiki |
| Part Type | Replacement Part |
