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LA1KN313

LA1KN313 Schneider

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Manufacturer Schneider HS code 8538.90 Ship to India Availability 109 remaining

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Schneider Electric LA1KN313 is a TeSys K front-mount auxiliary contact block designed to add signalling and interlocking contacts to compatible TeSys K contactors and control relays. It provides an instantaneous contact arrangement of 3 normally open (NO) and 1 normally closed (NC), making it suitable for expanding control circuit functionality such as status indication, permissive logic and auxiliary relay interfacing. The LA1KN313 uses spring terminals for quick, consistent wiring with solid or flexible conductors, and is rated for control applications up to 690 V AC (up to 400 Hz) with a conventional thermal current of 10 A at 50 °C. With a compact 35 mm depth and IP2X protection, it is a practical accessory for panel builders looking to increase the number of available auxiliary contacts without increasing footprint.

Typical applications

Expanding the number of auxiliary signalling contacts on Schneider TeSys K contactors and control relays for additional control circuit functions
Providing extra NO/NC feedback points for PLC input monitoring, allowing clearer status indication of contactor operation
Adding interlocking and permissive logic paths in motor starter control panels where multiple auxiliary states are required
Creating dedicated alarm and indication circuits (for example, run/stop lamps or annunciation relays) separate from the main control circuit
Enabling multi-stage control schemes that need several simultaneous auxiliary outputs from a single contactor action
Supporting changeover-style logic by combining multiple normally open contacts with a normally closed contact in one front-mounted block
Increasing I/O capacity in compact panel builds by using a front-mount auxiliary block instead of additional relays
Providing reliable auxiliary switching for control voltages up to industrial panel standards in OEM machinery and general automation assemblies
Simplifying panel wiring where spring terminals are preferred for consistent terminations in repetitive build environments

Specification	Description
Manufacturer	Schneider Electric
Part Number	LA1KN313
Product Range	TeSys K
Product Type	Auxiliary contact block
Mounting Location	Front-mount accessory for compatible TeSys K devices
Contact Configuration	3 Normally Open (NO) + 1 Normally Closed (NC)
Contact Operation	Instantaneous
Rated Operational Voltage (Ue)	Up to 690 V AC (≤ 400 Hz)
Rated Insulation Voltage (Ui)	690 V (IEC 60947 / BS 5424); 750 V (VDE 0010 group C); 600 V (CSA C22.2)
Conventional Free Air Thermal Current (Ith)	10 A (at 50 °C ambient)
Rated Making Capacity (Irms)	110 A (at ≤ 690 V AC, IEC 60947)
Short-Time Withstand Rating	80 A for 1 s; 60 A for 500 ms; 110 A for 100 ms
Associated Fuse Rating	10 A gG (up to 690 V, IEC 60947 / VDE 0660)
Minimum Switching Voltage	17 V
Minimum Switching Current	5 mA
Insulation Resistance	> 10 MΩ
IP Rating	IP2x (VDE 0106)
Terminal Type	Spring terminals
Conductor Size (Metric)	0.75 to 1.5 mm² (solid or flexible, without cable end)
Conductor Size (Imperial)	#16 to #18 AWG
Depth	35 mm
Approx. Dimensions (H × W × D)	39 mm × 33 mm × 35 mm
Approx. Weight	0.045 kg
Operating Temperature	-25 to +50 °C
Storage Temperature	-50 to +80 °C
Operating Altitude	Up to 2000 m (without temperature derating)
Environmental Characteristic	Normal environment
Compliance	REACh free of SVHC; RoHS compliant; WEEE applicable
Product Description	Schneider Electric TeSys K LA1KN313 auxiliary contact block that front-mounts to add extra control and signalling contacts, providing a 3NO + 1NC instantaneous contact arrangement with spring terminals for straightforward panel wiring.

What does this auxiliary contact block do in a control panel?

It adds additional auxiliary contacts to a compatible TeSys K device so you can expand control, signalling and interlocking functions without changing the main power circuit.

How many auxiliary contacts are provided and what are their states?

It provides four instantaneous auxiliary contacts in total: 3 normally open (NO) and 1 normally closed (NC).

Are the auxiliary contacts instantaneous or time-delayed?

The contacts are instantaneous, meaning they change state immediately with the associated device actuation (no intentional delay).

Where does the block mount on the device?

It is designed for front mounting on compatible TeSys K contactors or control relays, keeping wiring accessible from the front of the assembly.

What termination type does it use?

It uses spring terminals, intended for straightforward, tool-assisted wiring without the need to set a terminal torque value.

What conductor sizes can be connected to the spring terminals?

It accepts 0.75 to 1.5 mm² conductors (solid or flexible). Equivalent control wire size is typically #16 to #18 AWG.

What are the key electrical ratings for insulation and operational voltage?

Rated insulation voltage (Ui) is up to 690 V (IEC 60947 / BS 5424) and up to 750 V (VDE group C). Rated operational voltage (Ue) is up to 690 V AC at up to 400 Hz.

What is the conventional thermal current rating for the auxiliary contacts?

The conventional free-air thermal current (Ith) is 10 A at 50 °C ambient.

Can it switch very low-level signals for PLC or feedback circuits?

Yes. The minimum switching values are 17 V and 5 mA, making it suitable for many low-level control and signalling applications (application suitability should still be verified for the specific circuit).

What short-time current can the contacts withstand?

Permissible short-time ratings include 80 A for 1 second, 60 A for 500 ms, and 110 A for 100 ms (as specified for coordination and withstand considerations).

What ingress protection and environmental limits apply?

It is rated IP2x. Typical operating ambient range is -25 to +50 °C, with storage from -50 to +80 °C, and operation up to 2000 m altitude without temperature derating.

How much space does it add when fitted?

The maximum depth is approximately 35 mm, and typical product mass is about 0.045 kg, which helps when planning panel layout and door clearance.

Which standards and approvals are commonly associated with this accessory?

It is specified with conformity to IEC 60947 and related national standards (including BS and VDE references), and is commonly listed with UL and CSA certifications for use in relevant control panel builds.

Is it suitable for use with reversing configurations?

Yes. It is intended for use with compatible TeSys K contactors, including reversing contactor arrangements, where extra NO/NC auxiliaries are often needed for electrical interlocking and status indication.

Does it require a specific fuse for protection?

For coordination, an associated fuse rating of 10 A gG is referenced (up to 690 V). Final protective device selection should match the overall control circuit design and applicable standards.

Typical applications

Expanding the number of auxiliary signalling contacts on Schneider TeSys K contactors and control relays for additional control circuit functions
Providing extra NO/NC feedback points for PLC input monitoring, allowing clearer status indication of contactor operation
Adding interlocking and permissive logic paths in motor starter control panels where multiple auxiliary states are required
Creating dedicated alarm and indication circuits (for example, run/stop lamps or annunciation relays) separate from the main control circuit
Enabling multi-stage control schemes that need several simultaneous auxiliary outputs from a single contactor action
Supporting changeover-style logic by combining multiple normally open contacts with a normally closed contact in one front-mounted block
Increasing I/O capacity in compact panel builds by using a front-mount auxiliary block instead of additional relays
Providing reliable auxiliary switching for control voltages up to industrial panel standards in OEM machinery and general automation assemblies
Simplifying panel wiring where spring terminals are preferred for consistent terminations in repetitive build environments

Specification	Description
Manufacturer	Schneider Electric
Part Number	LA1KN313
Product Range	TeSys K
Product Type	Auxiliary contact block
Mounting Location	Front-mount accessory for compatible TeSys K devices
Contact Configuration	3 Normally Open (NO) + 1 Normally Closed (NC)
Contact Operation	Instantaneous
Rated Operational Voltage (Ue)	Up to 690 V AC (≤ 400 Hz)
Rated Insulation Voltage (Ui)	690 V (IEC 60947 / BS 5424); 750 V (VDE 0010 group C); 600 V (CSA C22.2)
Conventional Free Air Thermal Current (Ith)	10 A (at 50 °C ambient)
Rated Making Capacity (Irms)	110 A (at ≤ 690 V AC, IEC 60947)
Short-Time Withstand Rating	80 A for 1 s; 60 A for 500 ms; 110 A for 100 ms
Associated Fuse Rating	10 A gG (up to 690 V, IEC 60947 / VDE 0660)
Minimum Switching Voltage	17 V
Minimum Switching Current	5 mA
Insulation Resistance	> 10 MΩ
IP Rating	IP2x (VDE 0106)
Terminal Type	Spring terminals
Conductor Size (Metric)	0.75 to 1.5 mm² (solid or flexible, without cable end)
Conductor Size (Imperial)	#16 to #18 AWG
Depth	35 mm
Approx. Dimensions (H × W × D)	39 mm × 33 mm × 35 mm
Approx. Weight	0.045 kg
Operating Temperature	-25 to +50 °C
Storage Temperature	-50 to +80 °C
Operating Altitude	Up to 2000 m (without temperature derating)
Environmental Characteristic	Normal environment
Compliance	REACh free of SVHC; RoHS compliant; WEEE applicable
Product Description	Schneider Electric TeSys K LA1KN313 auxiliary contact block that front-mounts to add extra control and signalling contacts, providing a 3NO + 1NC instantaneous contact arrangement with spring terminals for straightforward panel wiring.