The FANUC A02B-0120-K303 is a Legacy control generation for industrial control and automation applications.

What Is the FANUC A02B-0120-K303 Connector Kit?

The FANUC A02B-0120-K303 is a passive connector kit for legacy FANUC CNC wiring. Per FANUC's B-64303EN/01 manual, it is the recommended cable connector (Hirose, 20-pin). Because it carries no active electronics, it has no independent supply voltage, power consumption, or operating temperature rating; those parameters follow the host CNC. Buyers evaluating this part should confirm pin count, mounting depth, and host-system compatibility before ordering.

Key Specifications at a Glance

• Brand: FANUC
• Model: unit
• Series: FANUC CNC accessory
• Official identity: Recommended cable connector (Hirose, 20-pin), per B-64303EN/01
• Supply voltage: Not applicable (passive component; powered by host system)
• Power consumption: Not applicable (passive component; no independent power consumption)
• Operating temperature: Not applicable (passive component; rating follows host CNC)
• Storage temperature: Not applicable (passive component; rating follows host CNC)
• Dimensions (H×W×D): Not applicable (passive connector kit; no manufacturer-published outline dimensions)

The absence of independent electrical and thermal ratings is a defining characteristic of this part, not a data gap. It is a wiring accessory, so its performance is bounded by the CNC it serves.

How to Evaluate This unit for Your Legacy CNC

Because this is a passive connector, the evaluation criteria differ from those for an active module. Start with the host control: This unit is associated with FANUC Series 16/18 CNC systems, which are a legacy control generation. Confirm that your control matches this family before ordering.

Next, verify the physical interface. The official FANUC identity is a recommended cable connector (Hirose, 20-pin). The connector kit is described as a Hirose FI40B-2015S connector with FI-20-CV case, soldering type, for JA3 on an operators panel with depth 80 mm minimum. That family-level reference is not confirmed for this specific order code, so treat it as a starting point for your own verification rather than a guaranteed configuration.

Finally, consider the environment. The storage humidity range is 75%RH or less normal, with up to 95%RH for short periods (≤1 month), no condensation, per B-63945EN/02. Since operating temperature follows the host CNC, review the host cabinet's thermal profile rather than looking for a standalone rating on the connector.

Why Passive Connectors Matter in Mission-Critical CNC Wiring

In oil and gas machining and process control, a loose or degraded connector can interrupt feedback signals and halt a machining cycle. This unit is a small, low-mass part (approximately 0.03 kg, supplier-reported, family-level reference), yet its role in the wiring chain is mission-critical. Specifying the correct connector reduces the risk of intermittent faults and rework during maintenance windows.

Because the part is passive, there is no firmware, no configuration, and no independent power draw to manage. That simplicity supports dependable operation in demanding environments where every added active component is another potential failure point.

Installation and Maintenance Guidance

Installation should follow the host CNC's wiring diagrams and the connector manufacturer's soldering instructions. The connector is a soldering type, so proper strain relief and insulation discipline matter. Do not substitute a different pin count or case style without confirming fit with the host panel depth.

For maintenance, inspect the connector periodically for mechanical wear, bent pins, and contamination. Because the operating temperature follows the host CNC, thermal stress on the connector is a function of the cabinet environment. Keep cabinet humidity within the stated storage range and avoid condensation during shutdowns. Always follow the manufacturer's safety manual when working inside an energized control cabinet.

Integration and Compatibility Notes

This unit is a wiring accessory, not a communication module. It has no built-in communication ports. When integrating into a legacy FANUC CNC, confirm the cable routing and connector orientation against the machine builder's documentation. If your panel depth is less than 80 mm, verify clearance before assembly. For any application-specific questions, contact PetroPartsOnline for parts suited to your application's requirements.

Frequently Asked Questions

What is the FANUC unit?

The FANUC unit is a passive connector kit for legacy FANUC CNC wiring. FANUC's B-64303EN/01 manual identifies it as the recommended cable connector (Hirose, 20-pin).

Does This unit require its own power supply?

No. This unit is a passive component with no independent power consumption and no supply voltage rating. It is powered by the host system, so no separate power connection is needed.

What operating temperature applies to this connector?

Operating temperature is not applicable for This unit because it is a passive component. Its thermal rating follows the host CNC, so review the host cabinet's temperature specification instead.

Is This unit compatible with all FANUC CNC models?

This unit is associated with FANUC Series 16/18 CNC systems, a legacy control generation. Compatibility with other FANUC models is not confirmed in the available data, so verify against your control's manual before ordering.

What humidity range is specified for storage?

Storage humidity for This unit is 75%RH or less normal, with up to 95%RH for short periods (≤1 month), no condensation, per B-63945EN/02. Keep the connector dry and avoid condensation during storage.

Contact PetroPartsOnline for parts suited to your application's requirements.

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Key Specifications at a Glance Brand: FANUC Model: unit Series: FANUC CNC accessory Official identity: Recommended cable connector (Hirose, 20-pin), per B-64303EN/01 Supply voltage: Not applicable (passive component; powered by host system) Power consumption: Not applicable (passive component; no independent power consumption) Operating temperature: Not applicable (passive component; rating follows host CNC) Storage temperature: Not applicable (passive component; rating follows host CNC) Dimensions (H×W×D): Not applicable (passive connector kit; no manufacturer-published outline dimensions) The absence of independent electrical and thermal ratings is a defining characteristic of this part, not a data gap. It is a wiring accessory, so its performance is bounded by the CNC it serves. How to Evaluate This unit for Your Legacy CNC Because this is a passive connector, the evaluation criteria differ from those for an active module. Start with the host control: This unit is associated with FANUC Series 16/18 CNC systems, which are a legacy control generation. Confirm that your control matches this family before ordering. Next, verify the physical interface. The official FANUC identity is a recommended cable connector (Hirose, 20-pin). The connector kit is described as a Hirose FI40B-2015S connector with FI-20-CV case, soldering type, for JA3 on an operators panel with depth 80 mm minimum. That family-level reference is not confirmed for this specific order code, so treat it as a starting point for your own verification rather than a guaranteed configuration. Finally, consider the environment. The storage humidity range is 75%RH or less normal, with up to 95%RH for short periods (≤1 month), no condensation, per B-63945EN/02. Since operating temperature follows the host CNC, review the host cabinet's thermal profile rather than looking for a standalone rating on the connector. Why Passive Connectors Matter in Mission-Critical CNC Wiring In oil and gas machining and process control, a loose or degraded connector can interrupt feedback signals and halt a machining cycle. This unit is a small, low-mass part (approximately 0.03 kg, supplier-reported, family-level reference), yet its role in the wiring chain is mission-critical. Specifying the correct connector reduces the risk of intermittent faults and rework during maintenance windows. Because the part is passive, there is no firmware, no configuration, and no independent power draw to manage. That simplicity supports dependable operation in demanding environments where every added active component is another potential failure point. Installation and Maintenance Guidance Installation should follow the host CNC's wiring diagrams and the connector manufacturer's soldering instructions. The connector is a soldering type, so proper strain relief and insulation discipline matter. Do not substitute a different pin count or case style without confirming fit with the host panel depth. For maintenance, inspect the connector periodically for mechanical wear, bent pins, and contamination. Because the operating temperature follows the host CNC, thermal stress on the connector is a function of the cabinet environment. Keep cabinet humidity within the stated storage range and avoid condensation during shutdowns. Always follow the manufacturer's safety manual when working inside an energized control cabinet. Integration and Compatibility Notes This unit is a wiring accessory, not a communication module. It has no built-in communication ports. When integrating into a legacy FANUC CNC, confirm the cable routing and connector orientation against the machine builder's documentation. If your panel depth is less than 80 mm, verify clearance before assembly. For any application-specific questions, contact PetroPartsOnline for parts suited to your application's requirements. Frequently Asked Questions What is the FANUC unit? The FANUC unit is a passive connector kit for legacy FANUC CNC wiring. FANUC's B-64303EN/01 manual identifies it as the recommended cable connector (Hirose, 20-pin). Does This unit require its own power supply? No. This unit is a passive component with no independent power consumption and no supply voltage rating. It is powered by the host system, so no separate power connection is needed. What operating temperature applies to this connector? Operating temperature is not applicable for This unit because it is a passive component. Its thermal rating follows the host CNC, so review the host cabinet's temperature specification instead. Is This unit compatible with all FANUC CNC models? This unit is associated with FANUC Series 16/18 CNC systems, a legacy control generation. Compatibility with other FANUC models is not confirmed in the available data, so verify against your control's manual before ordering. What humidity range is specified for storage? Storage humidity for This unit is 75%RH or less normal, with up to 95%RH for short periods (≤1 month), no condensation, per B-63945EN/02. Keep the connector dry and avoid condensation during storage. Contact PetroPartsOnline for parts suited to your application's requirements."}}]}]}