Siemens SIMATIC ET 200M Operating Instructions Manual page 223

Safety instructions
Personal injury and damage to property can occur
In hazardous areas, personal injury and damage to property may occur if you disconnect
plug-in connections during operation of an ET 200M distributed I/O system.
Always switch off the power to the ET 200M distributed I/O system when disconnecting
plug-in connections in hazardous areas.
Explosion hazard
If you replace components, compliance with Class I, DIV 2 may become invalid.
Deployment requirements
This device is only suitable for use in Class I, Div. 2, Group A, B, C, D, or in non-hazardous
areas.
ET 200M
Operating Instructions, 04/2022, EWA-4NEB7806006-09
WARNING
WARNING
WARNING
Technical Specifications
10.1 Standards and approvals
223