| Standards and compliance | 20% | Confirm that the offered ACB complies with the applicable edition of IEC 60947-2 or the relevant local standard, and that ratings match the project specification. | Product datasheet, type-test documentation, certificates where applicable, and a written list of declared ratings. |
| Electrical ratings and application fit | 15% | Check rated operational voltage and current, frequency, number of poles, installation type, and breaking capacity against the system design and available fault current. | A completed technical compliance schedule and confirmation of the selection assumptions. |
| Protection and coordination | 15% | Review available trip functions and settings, selectivity or coordination requirements, and compatibility with upstream and downstream protective devices. | Trip-unit specifications, setting ranges, coordination curves, and engineering support for the proposed protection scheme. |
| Technical support and engineering | 15% | Assess the supplier’s ability to assist with selection, drawings, installation questions, commissioning, and troubleshooting in the project’s time zone and language. | Defined support contacts, response commitments, sample technical documents, and commissioning or training scope. |
| Delivery and supply continuity | 10% | Confirm quoted lead time, shipping terms, production or stock location, order-change process, and ability to supply the required configuration. | Written delivery schedule, quotation validity, availability confirmation, and escalation process for delays. |
| Warranty and after-sales service | 10% | Compare warranty duration and conditions, service coverage, repair or replacement procedures, and availability of qualified support. | Written warranty terms, service-area details, claims procedure, and support response targets. |
| Spare parts and lifecycle support | 10% | Check the availability and expected support period for compatible accessories, trip units, operating mechanisms, and other service parts. | Spare-parts list, compatibility guidance, ordering lead times, and lifecycle or product-change notification policy. |
| Total cost and commercial clarity | 5% | Compare the complete cost of the specified configuration, including accessories, commissioning, freight, duties, taxes, and any stated exclusions. | Itemized quotation, payment terms, delivery terms, and a clear list of included and excluded services. |