Siemens SIRIUS 3RU2 - 3 RU21 thermal overload relays

Technical data
11.3 3RU21 thermal overload relays
SIRIUS Innovations - SIRIUS 3RU2 thermal overload relays / SIRIUS 3RB3 solid-state overload relays
108 Manual, 09/2014, A5E03656507420A/RS-AA/002
11.3
3RU21 thermal overload relays
11.3.1
3RU2116/3RU2126 thermal overload relays
11.3.1.1
General technical data
General technical data for 3RU2116/3RU2126 overload relays
Table 11- 6 General technical data for 3RU2116/3RU2126 overload relays
Type
3RU2116
3RU2126
Size
S00
S0
Width
45 mm
45 mm
Tripping in the event of
Overload and phase failure
Tripping class acc. to IEC/EN 60947-4-1
CLASS 10
Phase loss sensitivity
Yes
Overload warning
No
Resetting and recovery
• Reset options following tripping
Manual, automatic, and remote RESET
1)
• Recovery time
Depending on the level of the tripping current and the tripping
characteristic curve
Equipment
• Display of operating state on device
Yes, by means of TEST function/switch position indicator slide
• TEST function
Yes
• RESET key
Yes
• STOP button
Yes
ATEX
Suitable for overload protection of explosion-proof motors of
protection type "increased safety" Ex e
• EC type examination certificate number
according to Directive 94/9/EC (ATEX)
DMT 98 ATEX G 001
Ambient temperature
• Storage/transport
°C -55 ... + 80
• Operation
°C -40 ... + 70
• Temperature compensation
°C Up to 60
• Permissible rated current for control cabinet internal temperature
- Up to 60° C % 100 (current reduction is required above +60 °C)
- 60 °C to 70 °C % 87