Hochiki YBO-BSB2(BLK)/WL Addressable Base Sounder VAD Beacon - Black Case, White LEDs

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