Verified configuration
- Eight circuits are divided into four isolated power groups.
- Control power can be selected independently from the circuit supply.
4 isolated pairsGENIUS
I/O115 VAC or 125 VDC · Omitted
I/O115 VAC or 125 VDC · Omitted
GE Fanuc 4 isolated pairs
GE Fanuc IC660BBS103 Genius Isolated I/O Block without Failed-Switch Diagnostic
Later eight-circuit isolated I/O block that replaces IC660BBS101 and omits failed-switch comparison.
Product Overview
IC660BBS103 is the later no-failed-switch version of the Genius eight-circuit isolated I/O block. Its four isolated pairs can be configured as inputs or outputs for nominal 115 VAC or 125 VDC circuits.
The block intentionally ignores a difference between the commanded output state and the internal switch state, allowing circuits with manual or other field switches wired in parallel. Open-wire, loss-of-I/O-power, overload, no-load and overtemperature functions remain available where applicable.
IC660BBS103 replaces IC660BBS101. The terminal assembly is IC660TSS100 and the electronics assembly is IC660EBS101, but revision compatibility must be checked when combining older and later assemblies.
Circuits8 configurable isolated I/O
Grouping4 isolated pairs
Field supply115 VAC or 125 VDC
Failed-switch comparisonOmitted
Hardware Specifications
- Circuits
- 8 configurable isolated I/O
- Grouping
- 4 isolated pairs
- Field supply
- 115 VAC or 125 VDC
- Failed-switch comparison
- Omitted
- Output current
- 2 A per point
- Block current
- 15 A maximum
- Continuous group isolation
- 250 VAC/VDC
- Block isolation
- 1500 V
- Dimensions
- 224.4 × 88.9 × 100.0 mm
- Replaces
- IC660BBS101
Replacement Relationship
IC660BBS103 functional organization
Primary path
IC660BBS103 is the documented successor to IC660BBS101.
System boundary
Both versions omit the Failed Switch diagnostic.
Configuration point
Terminal and electronics assembly revisions still determine interchangeability.
Isolated Pair Behavior
Selection boundary
- Output protection remains active even though command-state comparison is omitted.
Product Replacement
Documented relationship
IC660BBS103 is the documented replacement for IC660BBS101.
Technical Questions
How does IC660BBS103 implement its Replacement Relationship function?
IC660BBS103 is the documented successor to IC660BBS101.
Why must Isolated Pair Behavior be reviewed for IC660BBS103?
Eight circuits are divided into four isolated power groups.
Which BBS103 isolated I/O architecture arrangement applies to IC660BBS103?
Four isolated pairs with no Failed Switch comparison.
Which Circuits and Grouping values define the BBS103 isolated I/O architecture configuration IC660BBS103?
Circuits: 8 configurable isolated I/O; Grouping: 4 isolated pairs.
Before commissioning IC660BBS103, which Replacement Relationship check matters most?
Both versions omit the Failed Switch diagnostic.
Which replacement relationship is documented for IC660BBS103 when reviewing Replacement Relationship?
IC660BBS103 is the documented replacement for IC660BBS101.
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