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Specification & Description
| 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 |
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.
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Frequently Asked Questions
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.
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