7
Storage of the circuit breaker is carried out in the manufacturer's package in
rooms with natural ventilation at an ambient temperature of from minus 25
°
C to
plus 40
°
C and at a relative humidity of 90 % and a temperature of plus 20
°
C.
Service life and manufacturer's warranty
When overcurrent occurs, the circuit breaker is opened by the releasing
electromagnet. Re-closing is carried out by the circuit breaker handle.
Figure 8 shows an example of setting the parameters of the MP211
microprocessing release.
In case of circuit breaker failure or fault detection, contact the organizations
specified in section 6.
breaker by pressing the "Test" button.
Protective characteristics (trip settings) are selected by the consumer
directly on the front panel of the circuit breaker by setting DIP switches according
to the given mnemonic diagram (figure 8).
Only one setting is required for all phases, and the release operates
simultaneously for all poles of the circuit breaker.
The set-up value of thermal and electronic releases (depending on the type
of circuit breaker) are shown in tables 6 and 7.
The microprocessing release does not require a separate power supply and
guarantees the correct operation of the protection at a load current of at least 15
%
of the rated current, even if there is voltage in only one phase. The protection unit
includes three current transformers, a microprocessor module and a trip
electromagnet that acts directly on the circuit breaker mechanism. Current
transformers installed inside the release housing provide power to the release
electronic circuit and generate the signals that are necessary for the protection
function execution.
Transportation, storage and disposal
Transportation of the circuit breaker is allowed by any kind of covered
transport in the manufacturer's package, which protects the packed circuit
breaker from mechanical damages, pollution and moisture ingress at
temperatures from minus 25
°
C to plus 40
°
C.
The circuit breaker should not be disposed as household waste. For
disposal, transfer to a specialized recycling company.
The service life of the circuit breaker is 15 years.
The circuit breaker that has worked the total number of on-off cycles
provided for by the technical conditions before the expiration of the warranty
cannot be replaced or repaired.
Claims for the circuit breaker will not be accepted in the event of an
independent change in the design of the product by the consumer.
The warranty period for the circuit breaker is 5 years from the date of sale,
provided that the consumer observes the rules for installation, operation,
transportation and storage.
REAL ABILITY
K
ARA
T
