Hochiki YBO-BS(WHT) Addressable Base Sounder - White Case

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 choice of 51 tones and a variable output up to 98 dB(A), with low current draw. It 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, set by the control panel or a hand-held programmer
• Variable sound output 50 to 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
• Can be used as a standalone sounder with the SI/CAP cap
• Auto-shutdown feature to limit noise pollution
• Approved by LPCB and VdS

Technical specifications

• Operating voltage: 17 to 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 to 98 dB(A) (±2 dB(A)) at 24 V DC 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: white PC+PS+GF5
• Ingress protection: IP21 (internal use only)
• Dimensions: 113 x 113 x 43 mm
• Weight: 112 g
• Base fixing centres: 48 to 74 mm
• Addressing: use addresses 1 to 127 only

Note: for Hochiki ESP systems. Fits the YBN-R/3 base or YBO-R/SCI isolator base, with ESP devices such as the ATJ-EN(WHT) heat detector or the CHQ-AB(BLU) beacon fitted on top.