SIRIUS Innovations 
System Manual, 01/2011, A8E56203870002-03 
101 
SIRIUS 3RT2 contactors/contactor assemblies 
2
2.1  Standards 
2.1.1  General regulations and standards 
Applicable regulations, standards, and approvals  
The general regulations and standards below apply to 3RT contactors and 3RH contactor 
relays: 
Table 2- 1  General regulations 
Applications  General regulations  Explanation 
  IEC 60947-1 
  DIN EN 60947-1 
Low-voltage switchgear and controlgear - 
General rules 
  IEC 60947-4-1 
  DIN EN 60947-4-1 
Low-voltage switchgear and controlgear 
Part 4-1: Electromechanical contactors and 
motor-starters 
  IEC 60947-5-1 
Specifically for contactor relays: Control 
circuit devices and switching elements; 
Electromechanical control circuit devices 
(including positively driven operation) 
  UL 508 
Industrial Control Equipment 
3RT contactors and 
3RH contactor relays 
  CSA 22.2 14-95 
Industrial Control Equipment 
 
Table 2- 2  Applicable standards 
Applications  Applicable standards  Explanation 
  EN 60335-1 
EN 60335, the latest standard for 
household appliances, precludes the use 
of plastics of flammability class HB. 
  EN 50155 
  DIN EN 60077 
  IEC 61373 
Standards for railway applications 
  CSA B44.1 
Elevator and Escalator Electrical 
Equipment 
  SEMI F47 
Requirements of the semiconductor 
industry for contactors 
3RT contactors and 
3RH contactor relays 
  EC 89/336/EEC 
EC Directive "EMC"