ISO 1509:2024

International
Standard
ISO 1509
Second edition
General purpose push-pull three-
pole circuit-breakers for aircraft —
Performance requirements
Disjoncteurs tripolaires à bouton-poussoir d'usage courant
utilisés à bord des aéronefs — Caractéristiques
PROOF/ÉPREUVE
Reference number
ISO 1509:2024(en) © ISO 2024

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ISO 1509:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
PROOF/ÉPREUVE
© ISO 2024 – All rights reserved
ii

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ISO 1509:2024(en)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Design requirements . 1
4.1 Ambient temperature and altitudes .1
4.2 Operation and instructions .2
4.3 Fixing type .2
4.4 Trip-free function.2
4.5 Working characteristics .2
4.6 Re-close .2
5 Dimensions . 2
6 Construction . 2
6.1 Push-button .2
6.2 Operation forces .2
6.3 Surface treatment .2
6.4 Rating inviolabili
...

ISO/DIS PRF 1509:2023(E)
ISO/TC 20/SC 1/WG 9
Secretariat: SAC
Date: 2023-09-062024-02-20
General purpose push-pull three-pole circuit-breakers for aircraft —
Performance requirements
Disjoncteurs tripolaires à bouton-poussoir d'usage courant utilisés à bord des aéronefs — Caractéristiques
PROOF

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ISO/DIS PRF 1509:2023(E2024(en)
© ISO 20232024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO
at the address below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
EmailE-mail: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2023 – All rights reserved
© ISO 2024 – All rights reserved

ii

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ISO/DIS PRF 1509:2023(E2024(en)
Contents
Foreword . vi
Introduction . viii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Design requirements . 2
4.1 Ambient temperature and altitudes . 2
4.2 Operation and instructions . 2
4.3 Fixing type . 2
4.4 Trip-free function. 2
4.5 Working characteristics . 2
4.6 Re-close . 2
5 Dimensions . 2
6 Construction . 2
6.1 Push-button . 2
6.2 Operation forces . 2
6.3 Surface treatment . 3
6.4 Rating inviolability . 3
6.5 Electrical connections . 3
6.6 Fasteners .
...