# Minute-pulse clock contact

Canonical URL: https://eloragrid.ai/symbols/iec-minute-pulse-clock-contact
Publisher: Elora Grid
Updated: 2026-10-14
Lookup label: HIN1P33
Drawing use: Schematic
Reference families: IEC, Manufacturer

## Symbol convention

Convention: IEC
Form: Minute-pulse clock contact
Autodesk IEC-60617 Symbol Preview — Instrumentation and sensor family reference; vendor family reference, not certified IEC geometry or database identifier.

This representation identifies the publisher's normally-open clock contact that closes every minute.

## What it represents

This representation identifies the publisher's normally-open clock contact that closes every minute.
Document the pulse purpose and downstream circuit response.
A periodic clock contact is distinct from an on-delay or off-delay timer.

## How to read it

- Document the pulse purpose and downstream circuit response.
- A periodic clock contact is distinct from an on-delay or off-delay timer.

## Information to show or reference

- Identify the associated device, circuit or diagram boundary.
- Document the pulse purpose and downstream circuit response.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.

## Important distinction

A periodic clock contact is distinct from an on-delay or off-delay timer.

## Facts

- Reference scope: Specific public IEC-context family form
- Publisher reference token: HIN1P33 (Autodesk token; not a verified IEC database ID)
- Information added: Document the pulse purpose and downstream circuit response.
- Preview: Independent educational concept; consult the publisher and applicable standard for the exact graphic

## Public references

- [AutoCAD Electrical: Instrumentation and sensors](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-773A36C3-44C6-43EB-9BD0-E0297816B9B2.htm) — Autodesk. Official public publisher family name and reference context; vendor identifiers and graphics are distinct from licensed IEC database content.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.