NEN EN 60898 : 1992 AMD 16 1996

1. General
2. Definitions
3. Classification
4. Characteristics of circuit-breakers
5. Marking and other product information
6. Standard conditions for operation in service
7. Requirements for construction and operation
8. Tests
8.1 Type tests and routine tests
8.2 Test conditions
8.3 Indelibility of marking
8.4 Reliability of screws, current-carrying parts and
     connections
8.5 Reliability of terminals for external conductors
8.6 Protection against electric shock
8.7 Dielectric properties
8.8 Temperature rise and power loss
8.9 28-day test
8.10 Tripping characteristics
8.11 Mechanical and electrical
8.12 Short-circuit
8.13 Resistance to mechanical shock and impact
8.14 Resistance to heat
8.15 Resistance to abnormal heat and to fire
8.16 Resistance to rusting
Figures
A. Determination of short-circuit power factor
B. Determination of clearances and creepage distances
C. Test sequences and number of samples to be submitted
     for certification purposes
D. Coordination of circuit-breakers with separate fuses
     associated in the same circuit
E. Special requirements for auxiliary circuits for
     safety extra-low voltage
F. Examples of terminals
G. Void
H. Arrangement for the detection of the emission of
     ionized gases during short-circuit tests
ZA. Classification of circuit-breakers into energy
     limiting classes
ZB. Guide for the selection of circuit breakers with
     reference to their rated voltage

Applies to a.c. air break circuit breakers for operation at 50 Hz aor 60 Hz with rated voltage not exceeding 440V (between phases), a rated current not exceeding 125 A and a rated short circuit capacity not exceeding 25,000 A. These circuit breakers are designed for protection against overcurrents of wiring installations of buildings, they are for use by uninstructed people and for not being maintained. Also covers circuit breakers with more than one rated current provided that the rating cannot be changed without use of a tool.