ISO 1033-1975 rus PDF

Full title and description

ISO 1033:1975 — Aircraft — Dimensions for general purpose push-pull three-pole circuit-breakers. This short International Standard specifies the external and panel-cutout dimensions for three-pole push‑pull circuit-breakers intended for general aircraft use, covering ratings up to and including 35 A.

Abstract

Specifies the dimensions of general-purpose push‑pull three‑pole circuit‑breakers (ratings up to and including 35 A), showing the breaker outline, parts projecting through the mounting panel and the required panel mounting hole geometries. Figures in the standard illustrate the breaker outline and panel cutouts.

General information

• Status: Published (international standard; listed for revision/review).
• Publication date: December 1975 (Edition 1, 1975-12 / 1 Dec 1975).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 49.060 (Aerospace electric equipment and systems).
• Edition / version: Edition 1 (1975).
• Number of pages: Official ISO record lists the published document as 1 page (some distributors/catalogs show short multi‑page product listings—see note below).

Scope

Defines the external dimensions and the panel mounting hole details for general-purpose push‑pull three‑pole circuit‑breakers intended for aircraft installations. The scope is limited to breakers with ratings up to and including 35 A and is intended to standardize mechanical interchangeability and panel cutouts.

Key topics and requirements

• Dimensional outline of three‑pole push‑pull circuit‑breakers (overall envelope and parts projecting through the panel).
• Panel cutout geometry and mounting hole details (including an anti-rotation small hole option).
• Applicability limited to breaker current ratings up to and including 35 A.
• Mechanical interchangeability to aid aircraft equipment manufacturers, maintainers, and parts suppliers.

Typical use and users

Used by aircraft designers, avionics and electrical equipment manufacturers, maintenance and repair organizations, procurement specialists, and standards/quality engineers who need consistent mechanical dimensions for panel-mounted three‑pole circuit‑breakers. Also used by parts suppliers and test labs to verify dimensional conformity.

Related standards

ISO 1033:1975 replaces earlier ISO/R 1033 (1969) and is maintained under ISO/TC 20/SC 1 (aerospace electrical equipment). A committee draft (ISO/CD 1033) has been prepared as part of a revision/replacement process, indicating the standard has been examined for update. Distributors and national catalogues may list related aircraft electrical equipment standards within ICS 49.060.

Keywords

ISO 1033, aircraft circuit-breaker dimensions, push-pull circuit-breaker, three-pole breaker, panel cutout, avionics mechanical standard, 35 A rating.

FAQ

Q: What is this standard?

A: ISO 1033:1975 is an International Standard that prescribes the mechanical dimensions and panel cutouts for general‑purpose push‑pull three‑pole circuit‑breakers used in aircraft.

Q: What does it cover?

A: It covers the dimensional envelope of the breaker, the part projecting through the mounting panel, and the shape/location of panel holes required for mounting and (optionally) anti‑rotation; it applies to ratings up to and including 35 A.

Q: Who typically uses it?

A: Aircraft manufacturers, avionics/electrical equipment producers, maintenance/repair organizations, procurement and spares suppliers, and standards or quality engineers who require consistent panel and part dimensions.

Q: Is it current or superseded?

A: ISO 1033:1975 is a published International Standard from 1975. ISO records indicate the standard is listed for review and there is a committee draft (ISO/CD 1033) in development to replace or update the 1975 edition; check the ISO catalogue for the latest lifecycle status if you need confirmation.

Q: Is it part of a series?

A: It is a standalone ISO technical specification within the aerospace electrical equipment ICS 49.060; it replaced an earlier ISO/R (1969) and sits among other aircraft electrical/mechanical standards—related documents may be found by browsing ICS 49.060 lists.

Q: What are the key keywords?

A: Aircraft, circuit-breaker, push-pull, three-pole, panel cutout, dimensions, 35 A, avionics mechanical interface.