ABB|BCHM-01C 3AUA0000088682|CEX-Bus interconnection unit
Description
ABB BCHM-01C 3AUA0000088682 is a CEX-Bus interconnection unit used to enhance system availability by dividing the bus into separate segments, supporting redundant communication interfaces and online CPU replacement.
Features
- Supports redundant communication interface units
- Enables online CPU replacement and hot swap
- External power supply with voting diode and fuse
Technical Specifications
Power Supply
- Input: L+ and L-, 24 V nominal (19.2 V to 30 V DC)
- Power consumption: 50 mA typical (70 mA max)
- Power dissipation: 1.2 W typical
Environmental Conditions
- Operating temperature: +5 to +55 °C (+41 to +131 °F)
- Storage temperature: -40 to +70 °C (-40 to +158 °F)
- Relative humidity: 5 to 95%, non-condensing
Mechanical Data
- Dimensions: Width 59 mm, Height 185 mm, Depth 127.5 mm
- Weight: 1.5 kg (including base)
Certifications
- Protection class: IP20
- CE Mark: Yes
- Electrical safety: UL 61010-1, UL 61010-2-201
- Hazardous location: cULus Class 1, Zone 2, AEx nA IIC T4
- Marine certificates: ABS, BV, DNV-GL, LR
- RoHS compliance: EN 50581:2012
- WEEE compliance: DIRECTIVE/2012/19/EU
Compatibility
Supports PM857, PM861A, PM862, PM863, PM864A, PM865, PM866, PM866A, PM867, and PM891 modules.
Redundancy and Performance
- Redundancy: Yes
- High integrity: Yes
- Hot swap supported
ABB|BCHM-01C 3AUA0000088682|CEX-Bus interconnection unit


ABB|BCHM-01C 3AUA0000088682|CEX-Bus interconnection unit
Description
ABB BCHM-01C 3AUA0000088682 is a CEX-Bus interconnection unit used to enhance system availability by dividing the bus into separate segments, supporting redundant communication interfaces and online CPU replacement.
Features
- Supports redundant communication interface units
- Enables online CPU replacement and hot swap
- External power supply with voting diode and fuse
Technical Specifications
Power Supply
- Input: L+ and L-, 24 V nominal (19.2 V to 30 V DC)
- Power consumption: 50 mA typical (70 mA max)
- Power dissipation: 1.2 W typical
Environmental Conditions
- Operating temperature: +5 to +55 °C (+41 to +131 °F)
- Storage temperature: -40 to +70 °C (-40 to +158 °F)
- Relative humidity: 5 to 95%, non-condensing
Mechanical Data
- Dimensions: Width 59 mm, Height 185 mm, Depth 127.5 mm
- Weight: 1.5 kg (including base)
Certifications
- Protection class: IP20
- CE Mark: Yes
- Electrical safety: UL 61010-1, UL 61010-2-201
- Hazardous location: cULus Class 1, Zone 2, AEx nA IIC T4
- Marine certificates: ABS, BV, DNV-GL, LR
- RoHS compliance: EN 50581:2012
- WEEE compliance: DIRECTIVE/2012/19/EU
Compatibility
Supports PM857, PM861A, PM862, PM863, PM864A, PM865, PM866, PM866A, PM867, and PM891 modules.
Redundancy and Performance
- Redundancy: Yes
- High integrity: Yes
- Hot swap supported