Overview
ISO 8092-5:2021 - "Road vehicles - Connections for on-board electrical wiring harnesses - Part 5" specifies test methods and general performance requirements for wiring harness connector operation. It applies to single‑pole and multi‑pole automotive connectors designed to be disconnected after vehicle installation for repair or maintenance. It does not cover one‑part PCB contacts or internal electronic device connections. The standard addresses ergonomic and assembly concerns by defining reproducible measurements for connector mate/unmate behaviour.
Key topics and technical requirements
- Scope and conditions
- Preconditioning: samples conditioned at (23 ± 5) °C and 45–75% RH for 24 h.
- Measurement environment: unused samples measured at (23 ± 5) °C and 45–75% RH. Cable types must comply with ISO 19642 series.
- Mating force measurement and classification
- Minimum sample size: 10 fully populated connector pairs (or representative device interface).
- Mating at constant speed (50 ± 10 mm/min) with force vs. stroke recorded.
- Classification examples provided: maximum mating force classes (≤45 N, 45–70 N, >70 N); mating stroke classes; and a mating force gap ratio R = (g / F) × 100 to classify completion force behaviour.
- Connector mating sound
- Measures audible feedback used by assembly workers.
- Procedure uses an IEC 61672‑1 compliant sound level meter, defined geometry and insertion angles, and cotton gloves to simulate worst‑case assembly.
- Minimum sound requirements: peak >5 kHz ≥ 60 dB (Lp); overall sound level ≥ 70 dB (LoA).
- Locking latch release and unmating force
- Unlock (release) force measured on 5 samples; classified (≤30 N, 30–45 N, >45 N).
- Unmating force tests require deactivating locks where applicable; fixtures or cable pulls allowed if drilling is impractical.
- Terminology and test reporting
- Defines male/female connectors, terminals, inertial locks and prescribes reporting of test speed, cable used, and measurement diagrams.
Applications and users
- Who uses it: automotive OEMs, harness and connector suppliers, test labs, design engineers, and quality/ergonomics teams.
- Practical uses:
- Validate connector ergonomics (mate/unmate effort and audible feedback) for assembly and maintenance.
- Ensure repeatable performance specifications for supplier contracts and component acceptance.
- Support ergonomic risk assessments and assembly line quality controls.
Related standards
- ISO 8092 series (other parts covering different connector aspects)
- ISO 19642 (automotive cables) - cited for cable requirements
- IEC 61672‑1 - sound level meter specifications used for mating sound tests
For implementation or certification, obtain the full ISO 8092-5:2021 document for complete test setups, figures, and mandatory reporting requirements.