# C12.5-125 IEC porcelain station-post insulator C12.5-125 station-post insulator from PPC Insulators. The manufacturer table lists Height H [mm]: 305 ± 1; Max. nom. diameter of insulating part d1 [mm]: 200; Minimum failing load - Bending [kN]: 12.5. Download the source catalogue and inspect the C12.5-125 column. ## Equipment and file summary Equipment / resource: C12.5-125 IEC porcelain station-post insulator Manufacturer: PPC Insulators Resource type: Product Part number: C12.5-125 Height H [mm]: 305 ± 1 Max. nom. diameter of insulating part d1 [mm]: 200 Minimum failing load - Bending [kN]: 12.5 Lightning impulse withstand voltage, dry [kV peak value]: 125 Power frequency withstand voltage, wet [kV r.m.s.]: 50 Listed file formats: PDF Listed files: 1 Available previews: 2 catalogue page previews Recorded revisions: Confirm the revision with the manufacturer Source checked: 2026-11-03 Download access: Email registration for site downloads; official source links are also available ## Related GA references - [Switchgear panel](https://eloragrid.ai/objects/switchgear-panel) - [Switchboard](https://eloragrid.ai/objects/switchboard) - [Ring main unit](https://eloragrid.ai/objects/ring-main-unit) Canonical page: https://eloragrid.ai/tools/cad-library/equipment/ppc-insulators-c12-5-125 Manufacturer: PPC Insulators Entry type: Product Part number: C12.5-125 Category: Switchboards & switchgear Formats: PDF Market discovery: Global Access: Direct download Official source: https://ppcinsulators.com/download-area/ Manufacturer evidence: https://ppcinsulators.com/wp-content/uploads/2018/05/PPC_IEC_Solid-Core_A4_LQ.pdf#page=22 Source checked: 2026-11-03 Download the verified original here. The manufacturer source is linked for revision checks; preview images are for inspection and the original drawing supplies the design dimensions. The source table supplies the listed product values. The project insulation, mechanical loading and regional requirements must be checked for the selected installation. Use the C12.5-125 column on PDF page 22. The download is the complete catalogue, not a standalone DWG or STEP part. ## In plain English ### What the equipment does A station-post insulator supports an energised conductor while separating it electrically from its grounded support. Its end fittings, height and mechanical strength determine how it can be mounted. ### A simple example When positioning C12.5-125 on a substation support, use PDF page 22 to compare its mounting interfaces with the structure and conductor connection. The listed Height H [mm] is 305 ± 1. ### What the drawings help you do Download PPC_IEC_Solid-Core_A4_LQ.pdf and open PDF page 22. Find the C12.5-125 column; other tables and model rows or columns describe different insulators. The following preview page contains the associated outline diagrams. This source is a catalogue PDF. A native DWG or STEP file is not included; use Request CAD for an editable model. ### Before using this reference - For C12.5-125, the source records Height H [mm]: 305 ± 1. Match that value to the conductor-support arrangement. - Compare the C12.5-125 column on PDF page 22 with the exact fixing or stud arrangement shown in the catalogue; use the dimensions for this exact reference. - The source also lists Max. nom. diameter of insulating part d1 [mm]: 200. Check the project requirement against the manufacturer’s specified units and conditions. - BIL or impulse withstand describes a short impulse test value. It is not the continuous operating-voltage rating. ### Where is the C12.5-125 information in this download? Open PDF page 22 of PPC_IEC_Solid-Core_A4_LQ.pdf and find the C12.5-125 column. The page preview preserves the manufacturer table; the download contains the complete catalogue. ### Is an editable CAD model included for C12.5-125? This entry provides the manufacturer PDF reference and its model-specific values. A DWG, DXF or STEP model is not attached; request the exact model and preferred format here. ### Terms - CAD: Computer-aided design files used to prepare drawings and models. - Revision: The recorded version of a drawing or model. Concept diagram: Identify the support position → Match the named reference and fixing → Coordinate the structure and conductor A simplified explanation of how this item works. It does not show terminal wiring or an operating procedure. - [PPC Insulators official source](https://ppcinsulators.com/wp-content/uploads/2018/05/PPC_IEC_Solid-Core_A4_LQ.pdf#page=22) ## Which file should I choose? Download PPC_IEC_Solid-Core_A4_LQ.pdf and open PDF page 22. Find the C12.5-125 column; other tables and model rows or columns describe different insulators. The following preview page contains the associated outline diagrams. This source is a catalogue PDF. A native DWG or STEP file is not included; use Request CAD for an editable model. ## Official files - PPC_IEC_Solid-Core_A4_LQ.pdf (PDF): https://ppcinsulators.com/wp-content/uploads/2018/05/PPC_IEC_Solid-Core_A4_LQ.pdf Site download: https://eloragrid.ai/tools/cad-library/download/ppc-insulators-c12-5-125/catalogue Hosting basis: no-explicit-prohibition; publisher attribution: PPC Insulators; reviewed: 2026-11-03 Rights review: Current manufacturer download listing and the complete catalogue text were inspected. No explicit reproduction prohibition was identified in this catalogue. Copyright remains with the named manufacturer; no redistribution licence is asserted.; evidence: https://ppcinsulators.com/download-area/, https://ppcinsulators.com/wp-content/uploads/2018/05/PPC_IEC_Solid-Core_A4_LQ.pdf Purpose: Manufacturer catalogue with C12.5-125 data and outline references on PDF page 22, 23; acquired: true; redistribution: unknown; SHA-256: 506a8514c890a941a0070b83a7d41fc8b5c10217be71bda6fc66ff1bcfe9f40f; revision: not recorded Global discovery is not proof of regional certification. Confirm exact configuration, revision, dimensional units and use rights with the manufacturer.