Siemens Sentron 3VA Manual page 215

The insulating measures for IEC applications are presented in the following. The insulating
measures are identified with letters in the tables. These letters stand for the following
insulation accessories:
Note
All the presented insulation measures represent minimum requirements.
Covers can be replaced with higher-quality covers:
• Insulating measure A can be replaced with D and E
• Insulating measure B can be replaced with D and F
• Insulating measure E can be replaced with D
• Insulating measure L can be replaced with K
3VA molded case circuit breakers with UL and IEC certification
Manual, 01/2019, L1V30435333-01
Accessories
4.3 Connection system
213