3LD2203-0TK53

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The Siemens 3LD2203-0TK53 is a robust and reliable emergency switch disconnector, designed to ensure a high level of safety in various industrial settings. This SENTRON series switch is a three-pole device with a rated uninterrupted current (Iu) of 32 A and an operating power at AC-23 A 400 V of 11.5 kW, making it suitable for managing medium-sized loads with efficiency and precision.

Crafted for front mounting with a four-hole attachment, the switch features a rotary actuator in a striking red and yellow colour scheme, which is universally recognised for emergency stop functions. The IP65 protection rating signifies that the unit is dust-tight and protected against jets of water, ensuring durability and reliability in harsh industrial environments.

The 3LD2203-0TK53 is designed for fixed mounting and is equipped with connection terminals for both the main current circuit and auxiliary contacts, streamlining installation and maintenance processes. With a rated insulation voltage of 690 V, this switch disconnector is capable of handling significant voltage levels, contributing to the safety and longevity of the electrical system it is integrated into.

This switch disconnector is versatile, serving not only as an emergency stop switch but also as a main switch, maintenance/repair switch, safety switch, and switch disconnector. Its suitability for a wide range of applications makes it an essential component in the control systems of manufacturing plants, automation lines, and other industrial facilities where safety and control are paramount.

The Siemens 3LD2203-0TK53 is a testament to Siemens' commitment to quality, safety, and innovation, providing a reliable solution for emergency power disconnection that meets the rigorous demands of industrial applications.
Specification Description
Part Number 3LD2203-0TK53
Alternative Part Number 3LD22030TK53
Manufacturer Siemens
Product Type Emergency Switch
Design SENTRON, Switch disconnector 3LD, emergency switching-off switch
Poles 3-pole
Rated Operational Current Iu: 32 A
Operating Power At AC-23 A 400 V: 11.5 kW
Operating Mechanism Rotary actuator, red/yellow
Mounting Type Front mounting, four-hole mounting
Protection Class IP65
Insulation Voltage Rated at 690 V
Continuous Current Rated at 32 A
Interlock Yes
Electrical Connection Connection terminals for both auxiliary contact and main current circuit
Motor Drive No
Number of NC Contacts 0 for auxiliary contacts
Operating Frequency 50 Hz to 60 Hz
Short-Circuit Protection Required fuse gL/gG: 40 A for main circuit, 10 A for auxiliary circuit
Operating Temperature Range -25 °C to +55 °C
Touch Protection Finger-safe
Switching Frequency Maximum 1 operation per hour
Dimensions (Depth x Height x Width) 92.5 mm x 83 mm x 67 mm
Mechanical Operating Cycles Typically 100,000
Loss Power per Conductor Typical 1.8 W

What type of switch is this and what are its main uses?

This is a SENTRON switch disconnector, specifically an emergency switching-off switch. It's primarily used for safely disconnecting electrical circuits in emergency situations. Its main applications include industrial machinery, control panels, and safety systems where an immediate power cut-off is necessary for safety.

Can this switch be used in outdoor environments?

The switch has an IP65 protection rating, which means it is dust-tight and protected against water jets from any direction, making it suitable for certain outdoor applications where these conditions are expected.

What is the current and operating power rating of this switch?

The switch has a rated uninterrupted current (Iu) of 32 A and an operating power at AC-23 A 400 V of 11.5 kW.

What are the mounting options for this switch?

The switch is designed for front mounting with a four-hole mounting configuration, which allows for secure installation on a panel or enclosure.

What type of actuator does this switch have?

It features a rotary actuator with a red/yellow colour scheme, which is commonly associated with emergency stop functions.

Is there an interlock feature available on this switch?

Yes, the switch comes equipped with an interlock feature to enhance safety by preventing unintended or unauthorised operation.

What is the insulation voltage rating for this switch?

The switch has an insulation voltage rating of 690 V.

Does this switch have auxiliary contacts?

No, this particular model does not come with auxiliary contacts.

What is the frequency range in which this switch operates?

The switch is designed to operate within a frequency range of 50 Hz to 60 Hz.

What certifications does this switch hold?

The switch holds general product approvals and conforms to relevant industry standards, ensuring its reliability and safety for use in various applications.

  • Emergency stop functions in industrial control panels
  • Isolation of electrical circuits for maintenance and safety
  • Switching off operations for machinery and equipment
  • Use as a main switch for disconnecting power supply
  • Integration into safety systems for manufacturing lines
  • Control of motors and other electrical loads in commercial applications
  • Installation in control stations for quick power shutdown
  • Use in automation systems for process control
  • Application in switchboards for circuit protection and management
  • Deployment in HVAC systems for electrical isolation and safety

This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.

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