Independent public references

Follow the source.

Standards references, public manufacturer information and official CAD resources support this library. Original explanations and illustrations are kept distinct from publisher material.

A public download is not automatically licensed for redistribution. Manufacturer graphics, CAD files and standards content remain at their original sources; original artwork has its own clearly stated scope and licence.

Read the sourcing and illustration policy
Schneider Electric

PowerLogic ION9000 user manual

Public manufacturer documentation for the installation, operation and configuration of an advanced energy and power-quality meter. Exact functions and terminals depend on the selected model.

Public reference checked 13 October 2026 · Publisher material linked, not redistributed

Hitachi Energy

CPB capacitor voltage transformer

Public manufacturer description of a capacitor voltage transformer for high-voltage metering, protection and power-line carrier applications. Exact model data remains with the publisher.

Public reference checked 13 October 2026 · Publisher material linked, not redistributed

GE Vernova

CCV/CVT and coupling capacitors brochure

Public explanation of capacitive sections, electromagnetic unit, terminal arrangements and the distinction from a coupling capacitor. Original publisher graphics are not reproduced.

Public reference checked 13 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — 1 Pole Circuit Breakers

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Disconnect 1 Pole

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Fusible Disconnects

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Fuses

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Fuse Switches

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Current Transformers

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Transformers

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Reactors

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Relays and Contacts

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Relays with Suppression

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Time Delay Relays

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Motor Control

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Push Buttons

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Illuminated Push Buttons

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Selector Switches

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — 3 Position Selector Switches

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — 4 Position Selector Switches

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Limit Switches

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Pressure and Temperature Switches

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Miscellaneous Switches

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Terminals

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Connectors - No Wirenumber Changes

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Splice Symbols

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Miscellaneous

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Resistive Components

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Capacitive Components

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Semiconductor Components

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Instrumentation and Sensors

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — 1 Phase Motors

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — 3 Phase Motors

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — DC Motors

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Generators

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Pilot Lights

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Transformer Lights

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — Push to Test Lights

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEEE Symbol Preview — LEDs

Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEC-60617 preview: Operating-device and function qualifiers

Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEC-60617 preview: Linear force and motion qualifiers

Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEC-60617 preview: Rotary force and motion qualifiers

Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEC-60617 preview: Propagation and signal-flow qualifiers

Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEC-60617 preview: Energy-flow qualifiers

Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEC-60617 preview: Physical-effect qualifiers

Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEC-60617 preview: Radiation qualifiers

Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEC-60617 preview: Mechanical return and interlock qualifiers

Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEC-60617 preview: Latching-device qualifiers

Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed

Autodesk

Autodesk IEC-60617 preview: Mechanical coupling qualifiers

Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.

Public reference checked 14 October 2026 · Publisher material linked, not redistributed