- Each module position has a dedicated 20-pin field connector.
- Prewired harnesses can route signals to marshalling or special-purpose terminal assemblies.
- The connector arrangement separates harness preparation from module installation.
GE Fanuc IC670CHS003 Field Control Connector-Style I/O Terminal Block
A two-position Field Control I/O base with keyed 20-pin wire-to-board connectors.
Connector-style I/O terminal block2Two 20-pin male connectorsAMP 178289-8
Product identity
Model Profile
GE Fanuc IC670CHS003 is the connector-style I/O terminal block for Field Control modules. Instead of screw terminals, it provides a keyed 20-pin male connector for each of the two module positions, supporting preassembled harnesses and repeatable cabinet connections.
The base carries station communication between the bus interface unit and the mounted modules while the connectors route field signals to an external terminal or cable assembly. Keying helps prevent incorrect connector insertion.
IC670CHS003 is also the direct connector-base partner for the IC670CHS004 thermocouple terminal block. This pairing provides a connector-to-connector path between thermocouple field termination and the installed thermocouple input module.
Model values
Product Data
- Product type
- Connector-style I/O terminal block
- Module positions
- 2
- Field connectors
- Two 20-pin male connectors
- Mating housing
- AMP 178289-8
- Contact family
- AMP D-3000 tin-plated contacts
- Typical wire ranges
- 20–24 AWG or 16–20 AWG by contact type
- Connector keying
- Yes
- Mounting
- DIN rail / panel feet
- Thermocouple pairing
- Direct connection with IC670CHS004
Hardware function
Harness Interface
Selection detail
Connector Selection
- Use AMP 178289-8 mating housings with compatible D-3000 contacts.
- Match the selected contact to conductor gauge and required retention force.
- Confirm the pin map for the installed I/O module before assembling a replacement cable.
Buyer decisions
Technical Questions
Does IC670CHS003 include screw terminals for field wires?
No. It uses two 20-pin male wire-to-board connectors, one for each module position.
Which mating connector is specified for IC670CHS003?
The specified mating housing is AMP part number 178289-8 with suitable D-3000 contacts.
Why is IC670CHS003 useful with IC670CHS004?
It allows a direct connector-to-connector cable path from the thermocouple terminal block to the thermocouple input module.
Can an IC670CHS002 wiring loom plug directly into IC670CHS003?
No. IC670CHS002 uses box terminals; IC670CHS003 requires the keyed connector harness and correct pin map.
What must be supplied when quoting an IC670CHS003 cable assembly?
State the module model, pin assignment, conductor gauge, cable length and opposite-end termination.
Is IC670CHS003 the hot-insertion connector base?
No. The later IC670CHS103 adds the alignment tabs associated with supported hot insertion/removal.
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