Introduction of Siemens contactor 3RT13 application and technical specifications

Siemens contactor 3RT13 application requirements

◆Executive standards

IEC/EN 60947-1;

IEC/EN 60947-4-1;

IEC/EN 60947-5-1 (auxiliary switch);

Siemens contactors are suitable for any climate, and they are very safe according to the requirements of the IEC 60529 standard. According to the test conditions of IEC 60947-4-1 use category AC-1, the contactor 3RT13 is suitable for switching the mixed load in the power distribution system. Among them, they are used to supply heaters, lights, motors, PC power units, etc., and their pf> 0.8.

◆Scope of application

Siemens contactors can be used to switch resistive loads and isolate systems that are not grounded or poorly grounded neutral conductors. For system transmission when alternate AC power is used, the contactors only carry current and do not need to be switched under inductive loads. For example, variable speed drives.

Siemens contactor 3RT13 model specifications

Siemens contactor 3RT13 technical parameters

◆Size

1. S2;

2. S3.

◆Rated working current AC-1 at 40/60℃

1. 60/55A;

2. 110/100A;

3. 140/120A.

◆Connection type

1. Screw terminals.

◆Rated control power supply voltage

24V AC/50Hz;

24V AC/50 or 60Hz;

24V DC;

42V AC/50 or 60Hz;

42V DC;

48V AC/50 or 60Hz;

100V AC/50Hz 100...110V AC/60Hz;

110V AC/50Hz;

110V AC/50 or 60Hz;

110V AC/50Hz and 120V/60Hz;

110V DC;

125V DC;

200V AC/50Hz 100...220V AC/60Hz;

220V AC/50 or 60Hz;

220V AC/50Hz and 240V/60Hz;

220V DC;

230V AC/50Hz;

230V AC/50 or 60Hz;

400V AC/50Hz;

400V AC/50 or 60Hz;

400V AC/50 or 60Hz and 440V AC/60Hz.

Siemens contactor 3RT13 interlock assembly

The 3RT13 4-pole contactor with four normally open contacts as the main contacts is suitable for assembling contactor components with mechanical interlocks, for example in the case of network switching. The size S2 and S3 contactor components include two 3RT133 or 3RT134. In each case, the device can be produced in combination with the horizontally mountable mechanical interlock 3RA1924-2B and mechanical connector 3RA1932-2G or 3RA1942-2G. In the case of S2 and S3 specification Siemens contactors, the front-mounted mechanical interlocking device cannot be used.

Siemens contactor 3RT13 auxiliary switch

The auxiliary switch can be designed as a positive drive contact in the 3RH contactor relay, or as a mirror contact of the 3RT power contactor. The snap-in auxiliary switch module can connect up to 8 auxiliary contacts. Please pay attention to these matters: in these eight auxiliary contacts, there must be no more than four NC contacts, and ensure that the horizontally installed auxiliary switch block symmetry.

Other parameters of Siemens contactor 3RT13

◆Surge suppressor without LED

It is also suitable for spring-type terminals. All Siemens 3RT13 contactors can be modified with RC components or varistors to suppress open-circuit surges in the coils. Diodes or diode components (including noise suppression diodes and Zener diodes for short turn-off time) can also be used.

However, when using these contactors, varistors, RC components, and diode components can all be inserted directly on the coil terminals, whether on the top or below. , The insertion direction of the diode and the diode assembly is determined by the encoding device. Note: If the Siemens contactor coil is attenuated for voltage peaks (suppression diodes 6x to 10x, diode components 2x to 6x, varistor +2 to 5ms), the OFF delay time of the NO contact and the ON delay time of the NC contact increase.

◆Coupling link for PLC control

1. Use 24V DC operation;

2. The working range is 17 to 30V;

3. Low power consumption 0.5W;

4. LED indicates the switch status.

The 3RH2924-1GP11 coupling link has an integrated surge suppressor (varistor), which is used to switch the contactor coil and is installed on the S0 specification Siemens contactor coil through the coil connection module.

◆Sealable lid

When contactors and contactor relays are used in safety-related applications, it must be ensured that the contactors cannot be operated manually. For Siemens contactors, a sealable cover can be used as an accessory. These can prevent accidental manual operation. These transparent molded plastic covers have brackets to seal the contactors.

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