SIRIUS thermistor motor protection relay with PTC sensor SIEMENS 3RN series
Manufacturer:
SIEMENS
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Series: SIRIUS thermistor motor protection relay with PTC sensor SIEMENS 3RN series
Features of SIRIUS thermistor motor protection relay with PTC sensor SIEMENS 3RN series
SIRIUS 3RN2 thermistor motor protection relays are available in
the following versions:
• 3RN2000 compact evaluation unit
• 3RN2010 compact/standard evaluation unit
• 3RN2012-.BW31 bistable evaluation unit
• 3RN2011, 3RN2012-...30, 3RN2013 standard evaluation unit with ATEX approval
• 3RN2023 evaluation unit with ATEX approval and 2 sensor circuits for warning and disconnection
They comply with
• IEC 60947-8 Low-voltage switchgear and controlgear - Part 8:
"Control units for built-in thermal protection (PTC) for rotating
electrical machines"
• IEC 61000-6-2, IEC 61000-6-4. "Electromagnetic compatibility for industrial-process measurement and control equipment"
The 3RN2 thermistor motor protection relays with ATEX approval
fulfill SIL 1 in compliance with EN 50495.
The terminals of the auxiliary contacts are designated in
accordance with EN 60947-1.
3RN2 evaluation units are suitable for snap-on mounting on
TH 35 DIN rails according to IEC 60715 or for screw fixing using
an adapter (accessory).
Application: Thermistor motor protection devices are used for direct monitoring of the motor winding temperature. For this purpose, the motors are equipped with temperature-dependent resistors (PTC) that are directly installed in the motor winding and abruptly change their resistance at their temperature limit.
General specifications of SIRIUS thermistor motor protection relay with PTC sensor SIEMENS 3RN series
|
Type |
Thermistor motor protection relays |
|
Rated supply voltage |
24VAC, 24VDC, 24...240VAC, 24...240VDC |
|
Protection function |
Temperature monitoring |
|
Reset method |
Automatic, Manual, Remote |
|
Number of sensor circuit |
1, 2 |
|
Output configuration |
SPDT, DPDT, DPST-1NO+1NC, SPDT+SPST-NO |
|
Rated contact capacity (resistive load) |
3A at 250VAC |
|
Connections type |
Screw terminals, Push-In plus terminals |
|
Mounting type |
DIN rail mounting |
|
Operating ambience |
Indoor |
|
Ambient temperature |
-25…60°C |
|
Ambient humidity |
70% max. |
|
Degree of protection |
IP20 |
|
Overall width |
17.5mm, 22.5mm |
|
Overall height |
100mm |
|
Overall depth |
90mm |
Installation guide SIRIUS thermistor motor protection relay with PTC sensor SIEMENS 3RN series Contact mailbox baoan@baoanjsc.com.vn or phone number 0989 465 256
Document of SIRIUS thermistor motor protection relay with PTC sensor SIEMENS 3RN series
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