The Hochiki YBO-BSB2(BLK)/WL is an addressable, loop-powered base sounder with an integral visual alarm device (VAD) beacon, in a black case with white LEDs, for the Hochiki ESP analogue addressable fire alarm system. It fits a Hochiki standard base (YBN-R/3) or isolator base YBN-R/3(SCI), and can carry any ESP sensor, addressable beacon or remote indicator. The beacon is ‘O’ rated to EN54-23, and the sounder and beacon can be controlled independently (panel dependent).
Key features
- Single loop address, set with the TCH-B200 hand-held programmer
- Variable sound output of 50 to 98 dB(A) (±2 dB(A)) at 1 m
- 51 user-selectable tones, all EN54-3 compatible
- ‘O’ rated beacon to EN54-23 with white LEDs
- 0.5 Hz or 1 Hz flash frequency (panel dependent)
- Sounder and beacon can operate independently (panel dependent)
- Auto-shutdown feature to limit noise pollution (panel dependent)
- Can be converted to a wall sounder beacon with the SI/CAP2 cap
- SIL Level 2 approved variant available
Technical specifications
- Ordering code: YBO-BSB2(BLK)/WL (black case, white LEDs)
- Operating voltage: 17 to 41 VDC
- Low power mode: 110 µA (typical)
- Quiescent current: 250 µA (typical)
- Sounding current: 0.8 mA (50 dB(A) at 1 m) to 16 mA (98 dB(A) at 1 m), typical
- Additional current with beacon active: +7 mA
- Sound output at 1 m: 50 to 98 dB(A) (±2 dB(A)) at 24 VDC or above
- Number of tones: 51; tone frequency range 300 to 2850 Hz
- Beacon: EN54-23 ‘O’ rated; flash rate 0.5 to 0.55 Hz; light volume 3.65 m³ (Hochiki Application Note 133)
- Operating temperature: -10 °C to +50 °C
- Storage temperature: -30 °C to +70 °C
- Maximum humidity: 95% RH non-condensing (at 40 °C)
- Materials: PC ABS case, translucent PC lens
- Ingress protection: IP21 (indoor use only)
- Weight: 160 g
- Dimensions: Ø113 x 43 mm (H)
- Base fixing centres: 48 to 74 mm
- Addresses: use 1 to 127 only
