Hochiki YBN-R/3(SCI) Short Circuit Isolator Base - Ivory

The Hochiki YBN-R/3(SCI) is an ivory sensor mounting base with an integral short-circuit isolator for the Hochiki ESP analogue addressable system. If it detects a short circuit on the loop it isolates that section, and the detector fitted to the base keeps working. It fits the whole ESP sensor range, does not use a loop address, and has a terminal for a remote LED indicator. With the addition of a cap (SI/CAP2) it can be used as an isolator on its own.

Key features

• Integral short-circuit isolator
• Does not take a loop address
• Compatible with the full ESP sensor range
• Remote LED terminal
• Low profile, easy fitting
• SIL 2 certified variant available

Technical specifications

• Product code: YBN-R/3(SCI) (ivory)
• Protocol: ESP
• Operating voltage: 17 to 41 VDC (24 VDC nominal)
• Standby current: 60 µA
• Isolator current in fault condition: <4 mA
• Remote LED output: 10 mA (limited by the detector)
• Maximum continuous current: 1 A
• Maximum per loop: 127 (may vary with control panel)
• Operating temperature: -10 °C to +50 °C
• Relative humidity: 10% to 95% RH non-condensing (at 40 °C)
• Material: ABS
• Fixing centres: 48 to 74 mm
• Maximum wire size: 2.5 mm² per terminal
• Weight: 79 g
• Dimensions: Ø100 x 13.7 mm (H)