3RN2011-1BA30 | Siemens Temperature monitoring relay

Description

The SIEMENS 3RN2011-1BA30 Temperature monitoring relay, part of the SIRIUS 3RN2 series, offers a suite of features engineered for the rigorous demands of harsh industrial environments and installations where control cabinet space is at a premium. Unlike traditional overload relays that estimate thermal state via current measurement, the 3RN2011-1BA30 provides direct temperature monitoring by evaluating Type A PTC thermistors embedded within the motor windings.

Parameter

power loss [W] for rated value of the current：1.2 W
insulation voltage for overvoltage category III according to IEC
60664 with degree of pollution 3 rated value：300 V
surge voltage resistance rated value：4 kV
shock resistance according to IEC 60068-2-27：11 g / 15 ms
vibration resistance according to IEC 60068-2-6：10 ... 55 Hz:0.35mm
mechanical service life (operating cycles) typical：10 000 000
thermal current of the switching element with contacts maximum：5A

Frequently asked questions

Can the 3RN2011-1BA30 replace the old 3RN1 series?
Yes. It is backward compatible in terms of function and wiring.

If the 3RN2011-1BA30 sensor circuit is broken, will the relay trip?
Yes. It has open circuit and short circuit detection functions. If the sensor circuit is open or short-circuited, the relay will immediately switch to fault state.

Can the 3RN2011-1BA30 be used with a motor driven by a frequency converter?
Very suitable. It directly measures the winding temperature and is more reliable than the current simulation protection built into the frequency converter.

Application areas:
Hazardous Areas (Explosion-proof): Factories where explosive gases or dust may exist, such as those involving oil, natural gas, or chemicals.

Heavy Industry and Mining: Protection for motors in conveyors, crushers, and other equipment that frequently start, brake, or bear heavy loads.

HVAC and Water Supply: Protection for large pump stations, fans, and compressors.

Marine Applications: Suitable for motor systems on ships.

Advantage Brands As Below

1) TRICONEX(3008,3625,3805E.3721,3700A 4351B...)
2) BENTLY NEVADA(3500/42M ,3500/22M,3500/95.3500/05...)
3) HIMA(F3330,F3236 ,F6217,F7126,F8621A....)
4) FOXBORO(FBM203,FBM204,FBM217,FMB231...)
5) Allan-Bradley (1756,1785,1771,1746,1769..)
6) ABB (DSQC .....)
7) GE(IC693,IC697,IC695,IS200,DS200) 
8) BACHMANN(CM202,DI232,MPC240,NT255,AIO288...)
9) ICS (T8403,T8431...)
10)Westinghouse: OVATION system, WDPF system, WEStation system spare parts.
11)Siemens: Siemens MOORE, 6ES5 series, 6GK series, 6DD series, 6AR series.
12)Motorola (MVM): MVME 162, MVME 167, MVME1772, MVME177 and other series.

More Models As Below

Picture/ Video Request

It's like having the store come to you!  

Request for Video/Picture