8
2 Identifying the device
2.1 Type plate (example)
( 1 ) Type
( 2 ) Type code
( 3 ) Control- and limit value range / ambient temperature at which this
thermostat was calibrated (option)
( 4 ) Contact rating
( 5 ) Permissible ambient temperature
( 6 ) Serial number
( 7 ) Week of manufacture
( 8 ) Year of manufacture
2.2 Type designation
Type
designation
EM - .. - .. - .. / .. Panel-mounting thermostat with single-pole
micro switch, connection "10" as standard
(plain cylindrical probe)
- 20 - E Safety temperature monitor STW (STB) with
change-over contact, limit value adjustable
- 30 - E Safety temperature monitor STW (STB) with
change-over contact, limit value permanently
factory-set
- 80 Safety temperature limiter STB with N/C con-
tact and restart lock, limit value permanently
factory-set
/ 707 Temperature compensation on the switching
head
/ 702 Snap switch contacts, gold plated
/ 574 Micro switch with N/C contact,
restart lock and additional signal contact (STB
only)
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