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ABB CI810B 3BSE020520R1 Fieldbus Communication Interface

The ABB CI810B 3BSE020520R1, also cataloged as the CI810B Fieldbus Communication Interface, provides AF100 fieldbus communication through two AF100 twisted-pair modems within ABB control system architectures. It operates from a 24 VDC supply and mounts directly on a 35 mm DIN rail.

Hardware Specifications

Parameter	Specification
Model	CI810B 3BSE020520R1
Spare Model	CI810B
Product Type	Fieldbus Communication Interface
Manufacturer	ABB
Origin	Sweden
Weight	0.4 kg
Dimensions	16.8 x 8.5 x 12 cm estimated shipping size
Supply Voltage	24 VDC
Isolation	1500 VDC
Mounting	35 mm DIN rail, snap-on
Operating Temp	0 deg C to +60 deg C
Storage Temp	-40 deg C to +85 deg C
Humidity	5-95% RH, non-condensing
Communication Interface	AF100 fieldbus
AF100 Modems	2 x twisted-pair modems
Power Supply Connector	3BSC840098R1
Modulebus Terminator	TB807, 3BSE008538R1

ABB Industrial Control Communication Characteristics

The CI810B uses two AF100 twisted-pair modems to provide the physical communication interface for the AF100 fieldbus. Therefore, installation should maintain proper separation between communication wiring and high-energy power conductors.

The module operates from a 24 VDC supply and provides 1500 VDC isolation. This isolation specification defines the stated electrical isolation capability between applicable circuits; it does not replace the system grounding requirements.

The CI810B uses snap-on mounting for a 35 mm DIN rail. Consequently, the mounting rail should remain mechanically secure and electrically bonded according to the control cabinet design.

Frequently Asked Questions (FAQ)

Q: What fieldbus does the CI810B 3BSE020520R1 support?
A: The supplied data identifies the CI810B as an AF100 Fieldbus Communication Interface with two AF100 twisted-pair modems.

Q: What supply voltage does the CI810B require?
A: The specified supply voltage is 24 VDC. The supplied data does not define the module's power consumption.

Q: What mounting method does the CI810B use?
A: The module mounts on a 35 mm DIN rail using a snap-on mounting arrangement.

Field Installation Guidelines

• Verify that the cabinet provides a secure 35 mm DIN rail before mounting the module.
• Confirm the 24 VDC supply polarity and voltage before energizing the interface.
• Route AF100 twisted-pair communication wiring separately from high-voltage and high-current conductors.
• Use the specified connectors and terminal blocks supplied for the module configuration.
• Install the TB807 Modulebus Terminator where required by the applicable ABB system architecture.
• Maintain shield and grounding practices specified by the ABB installation documentation for the associated fieldbus network.
• Keep communication cable routing free from unnecessary loops and excessive proximity to switching power devices.
• Confirm all field wiring terminations before applying system power.

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