Description
2.4 Standards and guidelines
3VA molded case circuit breakers with UL and IEC certification
Manual, 01/2019, L1V30435333-01
59
Recommended maximum clearance for 3VA6 molded case circuit breakers:
Adequate venting space must be taken into account during planning and installation of the
molded case circuit breakers.
In particular, the following must be observed:
● Ventilation openings must be kept free.
● Ionized gases must not be routed in the direction of connecting terminals or non-insulated
busbars.
● Venting spaces must not be blocked by busbars installed too close to one another or by
other objects.
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