The Hochiki YBO-BS(WHT) is an addressable, loop-powered base sounder in a white case for Hochiki ESP intelligent fire alarm systems. It gives a range of tones and volumes with a maximum output of 98 dB(A) (±2 dB(A)) and low current consumption. The unit fits onto the standard YBN-R/3 base or the YBO-R/SCI isolator base, and any ESP sensor, beacon or remote indicator can then be fitted on top. With the SI/CAP cap it can also be used as a standalone sounder.
Key features
- Loop powered with a single loop address - addressed automatically by the control panel or with a hand-held programmer
- Variable sound output 50-98 dB(A) (±2 dB(A)) at 1 m
- 51 user-selectable tones, all EN 54-3 compatible
- Fits the Hochiki standard or isolator base and supports ESP sensors, addressable beacons and remote indicators
- Auto-shutdown feature to limit noise pollution
- Approved by LPCB and VdS
Technical specifications
- Operating voltage: 17-41 V DC
- Low power mode (typ.): 40 µA
- Quiescent current (typ.): 150 µA
- Sounding current (typ.): 0.8 mA (50 dB(A) at 1 m) to 16 mA (98 dB(A) at 1 m)
- Sound output at 1 m: 50-98 dB(A) (±2 dB(A)) at 24 V DC or above
- Number of tones: 51
- Tone frequency range: 300-2850 Hz
- Operating temperature: -10°C to +50°C
- Storage temperature: -30°C to +70°C
- Maximum humidity: 95% RH, non-condensing (at 40°C)
- Case: white PC+PS+GF5
- Ingress protection: IP21 (internal use only)
- Dimensions: 113 x 113 x 43 mm
- Weight: 112 g
- Base fixing centres: 48-74 mm
- Addressing: use addresses 1 to 127 only
