ABB IRB 6620 / IRB 7600 Series Manipulator Harness — 3HAC025054-001 / 3HAC022544-001

Technical Dossier

Product Details And Specifications

ABB IRB 6620 / IRB 7600 Series: Comprehensive Manipulator Harness Range and Technical Overview

The ABB IRB 6620 and IRB 7600 series are heavy-duty industrial robots deployed extensively across global heavy industry sectors including automotive body-in-white assembly, chemical plant material handling, nuclear facility maintenance operations, and petroleum refinery process automation. The manipulator harness — the internal cable and conduit assembly routing power, signal, and pneumatic lines through axes 1 to 6 — is a primary wear component with a defined replacement interval. Harness failure is a leading cause of unplanned downtime in high-cycle robotic cells. This page indexes the complete harness and associated cable assembly catalog for the IRB 6620, IRB 6620LX, and IRB 7600 platforms.

The Evolution of IRB 6620 / IRB 7600 Architecture

The IRB 6600 platform, introduced in the early 2000s, established ABB's high-payload articulated robot architecture for payloads from 125 kg to 500 kg. The IRB 6620 (payload: 150 kg, reach: 2.2 m) and IRB 6620LX (payload: 150 kg, extended reach linear configuration) were derived from this platform and share a common harness routing architecture through axes 1–3, with variant-specific assemblies for axes 4–6. The IRB 7600 (payloads: 150 kg to 500 kg, reach: 2.55 m to 3.5 m) uses a mechanically similar but dimensionally distinct harness family. All three platforms use the IRC5 controller and share compatible DressPack and process cable routing accessories. As of 2024, the IRB 6620 and IRB 7600 are in the mature/end-of-active-production phase; ABB continues to supply spare parts and harness assemblies through its service network, and DriveKNMS maintains independent stock of both current and discontinued harness part numbers to support long-term maintenance contracts.

IRB 6620 / IRB 7600 Full Catalog & Functionalities (SKU List)

Manipulator Harness — Axes 1–6 Assemblies

• 3HAC025054-001: Manipulator harness ax 1–6, IRB 6620 / IRB 6620-3/1.9 standard configuration
• 3HAC022544-001: Manipulator harness ax 1–6, IRB 7600 series standard configuration
• 3HAC025054-002: Manipulator harness ax 1–6, IRB 6620LX extended-reach variant
• 3HAC025054-003: Manipulator harness ax 1–6, IRB 6620 with integrated process cable (DressPack)
• 3HAC022544-002: Manipulator harness ax 1–6, IRB 7600-500/2.55 high-payload variant
• 3HAC022544-003: Manipulator harness ax 1–6, IRB 7600-150/3.5 extended-reach variant

Axis-Specific Cable Assemblies

• 3HAC026253-001: Cable harness ax 1–3, IRB 6620 lower arm section
• 3HAC026254-001: Cable harness ax 4–6, IRB 6620 upper arm section
• 3HAC023456-001: Cable harness ax 1–3, IRB 7600 lower arm section
• 3HAC023457-001: Cable harness ax 4–6, IRB 7600 upper arm section
• 3HAC028761-001: Signal cable assembly, resolver/encoder, IRB 6620 ax 1–6
• 3HAC028762-001: Signal cable assembly, resolver/encoder, IRB 7600 ax 1–6

DressPack & Process Cable Routing

• 3HAC031683-001: DressPack lower arm, IRB 6620, process cable routing kit
• 3HAC031684-001: DressPack upper arm, IRB 6620, process cable routing kit
• 3HAC029874-001: DressPack lower arm, IRB 7600, process cable routing kit
• 3HAC029875-001: DressPack upper arm, IRB 7600, process cable routing kit

Power & Brake Cable Assemblies

• 3HAC024540-001: Motor power cable, ax 1, IRB 6620
• 3HAC024541-001: Motor power cable, ax 2–3, IRB 6620
• 3HAC024542-001: Motor power cable, ax 4–6, IRB 6620
• 3HAC021987-001: Motor power cable, ax 1–3, IRB 7600
• 3HAC021988-001: Motor power cable, ax 4–6, IRB 7600

Sourcing Hard-to-Find & Obsolete IRB 6620 / IRB 7600 Parts

With the IRB 6620 and IRB 7600 platforms entering the mature phase of their lifecycle, OEM lead times for harness assemblies have extended significantly, and certain axis-specific cable sub-assemblies have been discontinued from ABB's active catalog. DriveKNMS maintains a dedicated inventory of both current-production and end-of-life harness part numbers for these platforms. Our sourcing protocol covers: direct OEM surplus acquisition, certified refurbished harness assemblies with full continuity and insulation resistance testing, and cross-reference matching for superseded part numbers (e.g., early-revision 3HAC025054-001 units replaced by updated routing geometry variants). For facilities operating IRB 6620 or IRB 7600 robots under long-term maintenance agreements, DriveKNMS offers consignment stock arrangements and priority allocation for critical harness assemblies to eliminate unplanned downtime risk.

Quality Control for the IRB 6620 / IRB 7600 Harness Range

Manipulator harnesses for the IRB 6620 and IRB 7600 platforms present specific test challenges due to their multi-conductor architecture combining high-voltage motor power lines, low-voltage resolver signal circuits, and pneumatic conduits within a single routed assembly. DriveKNMS applies the following test protocol to all harness units prior to dispatch: (1) Point-to-point continuity verification across all conductors using a calibrated milliohm meter; (2) Insulation resistance test at 500 VDC between all conductor pairs and shield-to-ground, minimum acceptance threshold 100 MΩ; (3) Visual inspection of connector housings, strain relief boots, and conduit integrity at all axis articulation points; (4) Functional verification on an IRC5 controller test bench for units where full electrical simulation is applicable. All test records are retained and available upon request for quality audit purposes.