The Hochiki YBO-BS is an addressable, loop-powered base sounder in an ivory case for the Hochiki ESP analogue addressable fire alarm system. It fits onto the Hochiki standard base (YBN-R/3) or isolator base and can be fitted with any ESP sensor, addressable beacon or addressable remote indicator. It gives a choice of tones and volume levels up to 98 dB(A) with low current draw, and can be converted into a wall sounder by adding a cap.
Key features
- Loop powered with a single loop address, set automatically by the control panel or 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
- Accepts ESP sensors, addressable beacons and addressable remote indicators
- Auto-shutdown feature to limit noise pollution
- Approved by LPCB and VdS
- SIL Level 2 approved variants available
Technical specifications
- Ordering code: YBO-BS (ivory)
- Operating voltage: 17 to 41 VDC
- Low power mode: 40 µA (typical)
- Quiescent current: 150 µA (typical)
- Sounding current: 0.8 mA (50 dB(A) at 1 m) to 16 mA (98 dB(A) at 1 m), typical
- 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
- Operating temperature: -10 °C to +50 °C
- Storage temperature: -30 °C to +70 °C
- Maximum humidity: 95% RH non-condensing (at 40 °C)
- Case material: PC ABS
- Ingress protection: IP21 (indoor use only)
- Weight: 152 g
- Dimensions: Ø112 x 67 mm (H)
- Base fixing centres: 48 to 74 mm
- Addresses: use 1 to 127 only
