SIEMENS control switch supplier

SIEMENS SIRIUS 3RT23 Conactors for Resistant Loading (AC-1), 4-P., 4S, 18...50 A

3RT231 to 3RT234 and 3RT135 to 3RT137 contactors with screw type terminals

standard

IEC/EN 60947 1, IEC/EN 60947 4 1, IEC/EN 60947 5 1 (auxiliary contact)

Specifications S00 to S3

The 3RT23 contactor has two auxiliary contacts (1 NO and 1 NC).

Specifications S6 to S12

The 3RT13 contactor has two auxiliary contacts (2 NO and 2 NC).

The connection method

The primary loop

Specifications S00 and S0: screw or spring type terminals, spring type terminals have easy insertion design for mounting connectors

Specifications S2 and S3: Screw type terminals with box type terminals;After the box terminals are removed, they can be connected directly to the connecting bus using a cable head suitable for S3.

Specifications S6 to S12: screw type terminals for connecting busbars. Cables may be connected to these terminals via cable ends or flexible or rigid busbars.S10 and S12 contactors can be fitted with bias bus connectors, please see the attachment below.

Auxiliary/control circuits

Specifications S00-S3: screw or spring type terminals

Specifications S6 to S12: screw type terminals

Type of operation mechanism

Specifications S00 to S3

3RT23 contactors are available as models with conventional AC or DC operation, or as models with a wide range of solid-state operation and a common execution voltage (AC or DC operation).

In the operating voltage range of 0.8 to 1.1 x Us, it can be controlled via the control supply voltage connectors A1-A2 (usually in this way).

Specifications S6 to S12

The 3RT13 contactor is fitted with a wide range of solid-state operating mechanisms that can be controlled by 50/60 Hz AC and DC power supplies.

The DC control operates from 0.8 x US (minimum) to 1.1 x US (maximum) and the AC operates from 0.85 x US (minimum) to 1.1 x US (maximum).

The operating mechanism cannot be changed.

Install additional auxiliary contacts

Specifications S00

4 auxiliary contacts, not more than 3 normally closed contacts

Specifications S0 to S3

Four additional auxiliary contacts, not more than 2 normally closed contacts.

Specifications S6 to S12

An additional auxiliary contact (with 1 NO + 1 NC) can be mounted on each side.

Sirius 3RT25 Contactor, 4 poles, 2NO+2NC, 4...11 kW

standard

IEC/EN 60947 1, IEC/EN 60947 4 1, IEC/EN 60947 5 1 (auxiliary contact)

These contactors are suitable for use in all weather conditions.They are safe to touch with a finger and meet IEC 60529 requirements.

Here, accessories and spare parts for the 3-pole 3RT2 contactor are also available for the 4-pole contactor, see Accessories and spare parts for the Sirius 3RT2 contactor and Sirius 3RH2 contactor relays.

S0 to S3 contactors have 2 auxiliary contacts (1 normally open and 1 normally closed) integrated into the base unit.

Auxiliary contacts can be installed

Specifications S00 to S3

Four additional auxiliary contacts, not more than 2 normally closed contacts.

For a general description of 3RT2 contactor sizes S00 through S3, see Sirius 3RT Contactors, 3 poles up to 250 kW.

Use 3RT contactor in conjunction with IE3/IE4

Sirius 3RT16 Capacitor Contactor, 12,5... 75 kvar

standard

IEC/EN 60947 1, IEC/EN 60947 4 1, IEC/EN 60947 5 1, IEC/EN 60831 1, IEC/EN 61921

The 3RT26 contactor is suitable for use in all weather conditions.They are safe to touch with a finger and meet IEC 60529 requirements.

function

The 3RT26 contactor for split capacitive load (AC-6B) is a special 3RT20 contactor for split off container groups in specifications S00 through S3.

They are designed to transmit surge currents in such applications and are fusing resistant to the relevant technical specifications.

3RT26 contactors are suitable for capacitors with or without reactor protection.They are not only used in power capacitor breaking in reactive current compensation system, but also used in frequency converter breaking control.

For 3RT26 contactor, the precharge resistor is one of its indispensable components.The precharge resistor is switched on by means of a leading auxiliary contact before the main contact is closed.During the split operation, they are decoupled after the peak current decays.The attenuation of the surge current peak can also reduce the interference harmonics in the power supply.

Note:

The 3RT26 contactor only allows switching on discharge capacitors.

It is not allowed to be functionally tested by manual operation.The series resistor shall not be removed.

Auxiliary switch

The difference of unallocated auxiliary contacts is great.Please refer to order data for available models.Can provide other different types or models of products.

In specifications S00 and S0, the auxiliary contacts clipped to the capacitor contactor consist of three lead normally open contacts and one unallocated auxiliary contact.In addition, the basic unit has one (S00) or two (S0) idle auxiliary contacts.

The corresponding model 3RT26 contactors with specifications S00 and S0 cannot be fitted with additional auxiliary contacts.For specifications S2 and S3, an optional auxiliary contact can be provided with a side auxiliary contact block.On the side, more auxiliary contacts can be installed corresponding to the 3RT20 contactor.

Now, a device with two normally closed contacts can operate continuously and stably over the full power range.

3TK1, 4-pole (4 normally open), for controlling resistive load (AC-1)

Contactor for enhanced tolerance, 0.7... 1.25xus, used for railways

Sirius 3RT20 Motor Contactor 5,5... 18, 5 kW

standard

IEC/EN 60947 4 1, IEC/EN 60077 2, EN 50155

Scope of performance

Specifications S00 to S3

3RT20 contactor for motor loads up to 110 A / 55 kW (AC 3)

Specifications S6 to S12

3RT10 contactor for motor loads from 55 kW to 500 A / 250 kW (AC-3)

3RT14 contactor for resistive loads up to 690 A (AC‑1)

application

In addition to the standard certification in accordance with IEC 60974-4-1, contactors with extended working range are also certified in accordance with IEC 60077‑2 relevant sections to meet the requirements for use in railway applications.

Therefore, they can be guaranteed to improve the suitability of requirements, such as:

Extended temperature range compared to product standard IEC 60497-4-1, or

To extend the operating range or range of an electromagnetic coil

Improves the resistance to mechanical oscillation and vibration.The design of the terminals in the spring-type connection system also contributes to vibration resistance.

model

In addition to the complete motor contactor family (AC-3) with specifications S00 through S12 (3RT.0) and up to 250 kW, new 3RT14 contactors are available from specification S6 onwards, optimized for AC-1 operation up to 525 kW in various operating conditions.

The working range of the contactor operating mechanism

The railway certified contactor with extended operating range offers a solid state DC operating mechanism in all specifications from S00 to S12.

The operating voltage range of the mechanism is from 0.7 to 1.25 x Us in the temperature range of -40 to 70 °C.Over-voltage damping of contactor coils with varistor circuits has been achieved.

From specification S6 onwards, the operating mechanism is equipped with an additional control input that can operate between 24 DC and 110 V.This feature can be turned on or off with a selector switch.

Auxiliary switch

As with their counterparts in standard motor contactors, these devices may be equipped with auxiliary contacts (see "Power Contactors for breaking motors" for a general view of contactors).

The environment temperature

The allowable operating ambient temperature of these contactors (over the entire operating range of the operating mechanism) is from -40°C to +70°C.

Installed side by side

Contactors with conventional operating mechanisms

Specifications S00 and S0:

It can be installed side by side at ambient temperatures up to 60 ° C.A clearance of at least 10 mm must be provided between 60 °C and 70 °C.

Contactor with series resistance

S00 specifications:

It can be installed side by side at ambient temperatures up to 70 ° C.

Conactors with solid state operating mechanism (model: 3RT....-...0 la2)

Specifications S00 to S3:

It can be installed side by side at ambient temperatures up to 70 ° C.

Specifications S6 to S12:

It can be installed side by side at ambient temperatures up to 60 ° C.A clearance of at least 10 mm must be provided between 60 °C and 70 °C.

Siemens contactor relay Sirius 3RH21

Siemens 3TH4 contactor relay

standard

IEC/EN 60947 4 ‑ ‑ 1

Contact relay protection against electric shock, according to EN 60529.Depending on the configuration with other devices, the terminal cover needs to be installed on the connecting bus.

The environment temperature

The allowable ambient temperature for contactor operation (over the entire operating range of the coil) is between -- 50 °C and +70 °C.Continuous operation at temperatures ranging from -25 °C to +55 °C will reduce the service life of the machine, the current-carrying capacity of the current path, and the switching frequency.

When the ambient temperature is greater than 55 °C, there must be a 10mm gap between adjacent contactors.There is no need to reduce the technical specifications.

application

It can be used in devices with wide variations in control voltage and high ambient temperature, for example in railway applications.

Control and auxiliary circuits

The coil of the contact relay has an extended coil operating range of 0.7 to 1.25 x Us and is provided with a variable resistor for overvoltage protection as a standard component.Therefore, the operating delay is between 2 and 5 ms longer than the standard contactor.

3TH4244-0LB4

Auxiliary contactor, 44E, DIN EN 50011, 4NO+4NC for track application, bolt type terminals connected to work area 0.7-1.25xus with variable resistor 24V DC

3TH4244-0LF4

Auxiliary contactor, 44E, DIN EN 50011, 4NO+4NC for track application, bolt type terminals connected to work area 0.7-1.25xus for variable resistor 110V DC

3TH4253-0LB4

Auxiliary contactor, 53E, DIN EN 50011, 5 NO + 3 NC for rail application, bolted terminal connection, working area 0.7-1.25xus connected variable resistor 24V DC

3TH4253-0LF4

Auxiliary contacts, 53E, DIN EN 50011, 5 NO + 3 NC for rail application, bolted terminal connection, working area 0.7-1.25xus connected variable resistor 110V DC

3TH4262-0LB4

Auxiliary contactor, 62E, DIN EN 50011, 6 NO+2 NC for track application, bolted terminal connected working area 0.7-1.25xus with variable resistor 24V DC

3TH4262-0LF4

Auxiliary contactor, 62E, DIN EN 50011, 6 NO+2 NC for track application, bolted terminal connected working area 0.7-1.25xus with variable resistor 110V DC

3TH4262-0LF8

Auxiliary contactor, 62E, DIN EN 50011, 6 NO+2 NC for track application, bolted terminal connected working area 0.7-1.25xus with variable resistor 100 V DC

3RH11 contactor relay

Dc operation

IEC/EN 60947 4 ‑ ‑ 1

Contact relay protection against electric shock, according to EN 60529.Specifications S00 contactor relays have spring-type terminals for connecting all terminals.

The environment temperature

The allowable ambient temperature for contact relay operation (over the entire operating range of the coil) is between -40 and +70 °C.

Continued operation at >+60 °C reduces machine life, current path load capacity and maximum switching cycles.

Control and auxiliary circuits

The solenoids of the contactor relays have an extended coil operating range of 0.7 to 1.25 x Us and are equipped with surge suppressors as standard components.Therefore, the operating delay is between 2 and 5 ms longer than the standard contactor.

application

It is suitable for use in devices where the control voltage varies greatly or the ambient temperature is high, such as railway applications in harsh weather conditions and rolling mill applications.

It is also applicable to control voltages with battery buffering to extend the running time when the battery fails to charge.

Contact relay with conventional coil

Control and auxiliary circuits

These auxiliary contactor relays have an extended operating range of 0.7 to 1.25 x Us;The solenoid is serially connected to the rheostat.No additional series resistor is required.

Pay attention to

Additional auxiliary circuit terminals cannot be installed.

Installed side by side

When the ambient temperature >60 °C≤70 °C, there must be a 10mm interval between adjacent contactors.

The contactor relay has a series resistance

Control and auxiliary circuits

The DC solenoid of the contactor relay must be switched through a series rheostat to maintain excitation.

The contact relays are completely pre-wired and include plug-in modules containing series rheostats.Integrated surge suppressor (varistor).

Siemens 3RH, 3TH contactor type relay

The contact relay is a type of switchgear used for control and auxiliary circuits, as well as for control, signaling and locking, and switchgear interlocking.Of course, Sirius 3RH2 contactor relays are equipped with standard connection name symbols and connection systems to save installation time and overhead.This makes them particularly suitable for practical applications.The 3RH2 contactor relay has the same dimensions and design as the S00 motor contactor -- a distinct advantage, especially in accessories.

They are designed for AC or DC service and are provided with screw or spring type terminals.The basic contactor relay uses a 4-pole design that is expandable to up to 8 poles by means of a clamping auxiliary contact.

Siemens 3RH2 Sirius auxiliary contactors, 4- and 8- poles

3RH2122-1AB00

Auxiliary contactor,2 NO + 2 NC, 24 V AC, 50/60 Hz, size S00, bolt type terminal connection

3RH2122-1AC60

Auxiliary contactor,2 NO + 2 NC, 32 V AC, 50 Hz, 38 V, 60 Hz, size S00, bolt type terminal connection

3RH2122-1AD00

Auxiliary contactor,2 NO + 2 NC, 42 V AC, 50/60 Hz, size S00, bolt type terminal connection

3RH2122-1AF00

Auxiliary contactor,2 NO + 2 NC, AC 110 V, 50/60 Hz, size S00, bolt type terminal connection

3RH2122-1AG60

Auxiliary contactor,2 NO + 2 NC, 100 V AC, 50 Hz, 100...110 V, 60 Hz, size S00, bolt type terminal connection

3RH2122-1AH00

Auxiliary contactor,2 NO + 2 NC, 48 V AC, 50/60 Hz, size S00, bolt type terminal connection

3RH2122-1AK20

Auxiliary contactor,2 NO + 2 NC, 120 V AC, 50/60 Hz size S00, bolted terminal connection

3RH2122-1AK60

Auxiliary contactor,2 NO + 2 NC, AC 110 V, 50 Hz, 120 V, 60 Hz, size S00, bolt type terminal connection

3RH2122-1AL00

Auxiliary contactor, 2 NO + 2 NC, 125 V AC, 50/60 Hz size S00, bolted terminal connection

3RH2122-1AM20

Auxiliary contactor,2 NO + 2 NC, 208 V AC, 50/60 Hz size S00, bolted terminal connection