AS/NZS 60898.2:2025
Electrical accessories – Circuit-breakers for overcurrent protection for household and similar installations, Part 2: Circuit-breakers for a.c. and d.c. operation (IEC 60898-2:2016 (ED. 2.0) MOD)
Standard specifies additional requirements for single-and two-pole circuit-breakers which, in addition to the characteristics given in AS/NZS 60898.1:2024, are suitable for operation with direct current, and have a rated DC voltage not exceeding 220 V for single-pole and 440 V for two-pole circuit-breakers, a rated current not exceeding 125 A and a rated DC short-circuit capacity not exceeding 10 000 A.
The essential safety requirements in AS/NZS 3820 that could be applicable to miniature circuit-breakers are covered by this document and taken in conjunction with any other relevant requirements affecting safety.
This document is an adoption with national modifications, and has been reproduced from, IEC 60898‑2:2016, Electrical accessories – Circuit-breakers for overcurrent protection for household and similar installations – Part 2: Circuit-breakers for AC and DC operation. The modifications are set out in national variations boxes which give instructions where the IEC text is to be modified for use in Australia and New Zealand. Due to IEC copyright policy it is not possible to directly modify the IEC content.
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AS/NZS 60898.2:2025
SA/SNZ - Cover page
How to read this Standard
Preface
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
4.2 According to the number of poles
4.6 According to the instantaneous tripping current (see 3.5.17)
4.8 According to the time constant
5 Characteristics of circuit-breakers
5.3.1 Preferred values of rated voltage
5.3.5 Standard ranges of instantaneous tripping
6 Marking and other product information
7 Standard conditions for operation in service
8 Requirements for construction and operation
8.6.1 Standard time-current zone
8.8 Performance at short-circuit currents
9 Tests
9.2 Test conditions
9.10.3.1 General test conditions
9.10.3.2 For circuit-breakers of the B-type
9.10.3.3 For circuit-breakers of the C-type
9.11.1 General test conditions
9.11.2 Test procedure
9.12.3 Tolerances and test quantities
9.12.5 Power factor of the test circuits
9.12.5 Power factor and time constant of the test circuits
9.12.8 Interpretation of records
9.12.8.1 Interpretation of records in case of AC voltage
9.12.8.2 Interpretation of records in case of DC voltage
9.12.11.2 Tests at reduced short-circuit currents
9.12.11.2 Tests at reduced short-circuit currents and at small direct currents
9.12.11.2.3 Tests at reduced DC short-circuit currents
9.12.11.2.4 Test at small direct currents up to and including 150 A
9.12.11.3 Test at 1 500 A
9.12.11.4.2 Test at service short-circuit capacity (Ics)
9.12.11.4.3 Test at rated short-circuit capacity (Icn)
9.12.11.4.4 Test at the making and breaking capacity on an individual pole (Icn1) of multipole circuit-breakers
9.12.11.4.4 Performance at rated making and breaking capacity (Icn1) on individual poles of two-pole circuit-breakers
9.12.12 Verification of the circuit-breaker after short-circuit tests
(normative) Annexes
Annex C (normative) Test sequences and number of samples
Previous versions
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References
Electrical accessories – Circuit-breakers for overcurrent protection for household and similar installations, Part 1: Circuit-breakers for a.c. operation
Related Information
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AS/NZS 60898.2:2025
SA/SNZ - Cover page
How to read this Standard
Preface
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
4.2 According to the number of poles
4.6 According to the instantaneous tripping current (see 3.5.17)
4.8 According to the time constant
5 Characteristics of circuit-breakers
5.3.1 Preferred values of rated voltage
5.3.5 Standard ranges of instantaneous tripping
6 Marking and other product information
7 Standard conditions for operation in service
8 Requirements for construction and operation
8.6.1 Standard time-current zone
8.8 Performance at short-circuit currents
9 Tests
9.2 Test conditions
9.10.3.1 General test conditions
9.10.3.2 For circuit-breakers of the B-type
9.10.3.3 For circuit-breakers of the C-type
9.11.1 General test conditions
9.11.2 Test procedure
9.12.3 Tolerances and test quantities
9.12.5 Power factor of the test circuits
9.12.5 Power factor and time constant of the test circuits
9.12.8 Interpretation of records
9.12.8.1 Interpretation of records in case of AC voltage
9.12.8.2 Interpretation of records in case of DC voltage
9.12.11.2 Tests at reduced short-circuit currents
9.12.11.2 Tests at reduced short-circuit currents and at small direct currents
9.12.11.2.3 Tests at reduced DC short-circuit currents
9.12.11.2.4 Test at small direct currents up to and including 150 A
9.12.11.3 Test at 1 500 A
9.12.11.4.2 Test at service short-circuit capacity (Ics)
9.12.11.4.3 Test at rated short-circuit capacity (Icn)
9.12.11.4.4 Test at the making and breaking capacity on an individual pole (Icn1) of multipole circuit-breakers
9.12.11.4.4 Performance at rated making and breaking capacity (Icn1) on individual poles of two-pole circuit-breakers
9.12.12 Verification of the circuit-breaker after short-circuit tests
(normative) Annexes
Annex C (normative) Test sequences and number of samples
Previous versions
AS/NZS 60898.2:2025
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.