3RT1466-6SP36

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Standards

IEC/EN 60947‑1,
IEC/EN 60947‑4‑1,
IEC/EN 60947‑5‑1 (auxiliary switches)

The contactors are suitable for use in any climate. They are finger-safe according to IECВ 60529.

3RT contactors: 4 contactors are used for switching resistive loads (AC-1) or as contactors, for example for variable-speed operating mechanisms that normally only have to carry the current.

The accessories and spare parts for the 3RT contactors can also be used here; see "Accessories and spare parts" в†’ "for SIRIUS 3RT2 Contactors and SIRIUS 3RH2 Auxiliary Switches".

For a general description of sizes S3 to S12 of 3RT contactors, see "Power contactors for switching motors" в†’ "SIRIUS 3RT contactors, 3-pole up to 250В kW".

Connection method

Main circuit

• Size S3: screw terminals with box terminal; direct connection to the connecting bar possible with cable lugs when the box terminal is removed.
• Sizes S6 to S12: screw terminals with connecting bars that the cables can be connected to using either cable lugs or flexible or rigid busbars. Alternatively, box terminals are available as accessories.

Auxiliary/control circuit

Sizes S3 to S12: Screw terminals

Operating mechanism types

3RT2 contactors

3RT2 contactors are available as versions with conventional AC operating mechanisms or as versions with a wide-range solid-state operating mechanism and a universal actuating voltage (AC or DC operation possible).

With an operating range between 0.8 to 1.1В xВ U_s, control takes place via the control supply voltage connection A1 - A2 as is typically the case.

3RT1 contactors

The following control and/or actuator versions are available in sizes S6 to S12:

• Conventional operating mechanisms
• Solid-state operating mechanism
  Overvoltage damping of the operating mechanism coil is already integrated in the electronics for contactors with solid state operating mechanisms. The operating mechanisms are powered via a supply voltage with an operating range from 0.8В toВ 1.1В xВ U_s, optionally also controlled depending on the chosen mode of operation. Alternatively, control is also possible via the separate 24В VВ DC control signal input. Various rated voltage ranges for AC/DC control are available.
  The following versions are available:
  • With two operating modes: Direct control or via CPU input
  • As above, but additionally with remaining lifetime indication (RLT)
  • With fail-safe PLC input for simplification of safety applications (without mode of operation selection)

Solenoid coils/drive units

3RT2 contactors

Coil replacement is possible for sizes S0 to S3.

3RT1 contactors

The operating mechanisms for 3RT14..-.A/-.N/-.P contactors are removable and can be replaced simply by unlocking and pulling them out.

IMPORTANT:
Removal or changing of the operating mechanism is not permitted for 3RT14..‑ .S contactors with fail-safe control.

Safety applications

Contactors are a significant part of safety-related applications. They are generally the actuators that perform the switching operation leading to the safe disconnection of the corresponding application or system.

In addition to the provision of safety-related device data in the technical specifications and the Safety Evaluation Tool for the easy evaluation of the overall system, as well as accessories for simple and space-saving design, 3RT1 contactors that can be controlled directly by fail-safe controllers via fail-safe modules are also available in the high current range from 275 A (AC‑1) upwards.

For more information on safety systems, see "Safety systems"