Engineered for controlled motor starting, Katko star-delta motor control switches enable reduced inrush current and smooth startup in motor-driven applications. They support safe and reliable operation where controlled acceleration and mechanical stress reduction are essential.
Used in industrial machinery and building systems, these switches are designed to withstand frequent operation and demanding conditions, combining durability, clear switching positions, and long service life.
Technical data
Cable entries
3 x M25 (11,0-17,0 mm), metal; 1 x plug, metal; 1 x plug, metal
Depth
79.5 mm
EMC
false
Enclosure
A2 (104 x 159 x 80 mm)
Enclosure type
Aluminium
ETIM Class
EC000216
E-number FI
3620266
GTIN
6419410345108
Height
158.5 mm
IP rating
IP66
Long product name
Star-delta switch, 3-pole, Aluminum enclosure; W104 x H158.5 x D79.5, Cable entries: 3 x M25 (11,0-17,0 mm), metal; 1 x plug, metal; 1 x plug, metal
Max. term. torque (Nm)
1.8
Mech. endurance (no. of oper.)
20000
Net weight
1.1365 kg
Nom. values w/cable size (mm²)
10
Number of poles
3
Product type
TKK 325TK A2 3XM25M KST25M KST16M
Rated breaking cap. ICN AC-23A 415V (A)
200
Rated fused short-ckt. impulse withstand volt. Uimp (kV)
8
Rated insulation volt. Ui (V)
690
Rated operational current AC-21A 415V (A)
25
Rated operational current AC-22A 415V (A)
25
Rated operational current AC-23A 415V (A)
25
Rated oper. power 3-ph 1500rpm SQ cage motor AC-23A 415V (kW)
11
Rated short-ckt. making cap. Icm 415V (kA)
1.5
Rated short-time withstand current 1s Icw 415V (kA)
1.1
Rated therm. current Ithe (A)
40
Rated therm. current Ith (A)
40
Short product description
Isolating switch 3x25A IP66
Switch type
Cam Switch
Technical name
3x25A 400V 11kW
Terminals bolt size (Cu mm²)
1,5..16
Volume
1.3105 l
Width
104 mm
Dimensional drawing
Logistical data
Package size 1
1
Package size 1 depth
170 mm
Package size 1 GTIN code
6419410239445
Package size 1 height
400 mm
Package size 1 volume
20.4 l
Package size 1 weight
9.525 kg
Package size 1 width
300 mm
Sales unit
1
Downloadables
- Dimensional drawings media (546482753714541f21cf08cf920f10215708a73f_IsoSafe_A2_Dim.png)
- Brochures (6379e76fa5ee33ff60767c9781ca3ebaada6c217_KATKO_IsoSafe_catalogue_102024_en.pdf)
- Brochures (88bc9d1eaaa50e840fe66815236a2d4c16fce617_KATKO_IsoSafe_catalogue_082022_fi.pdf)
- Brochures (86a395c9341799e90f45174a6e4861db77624a97_KATKO_IsoSafe_catalogue_012025_pl.pdf)
Latest News & Insights
-
Discontinuation of 3-pole EVA and VKA 80–160A Switches
June 23, 2025 -
Introducing the Refreshed LK10 handle: New Fresh Design, Same Trusted Performance
September 02, 2024 -
KATKO Has Published Its First 'Sustainability at KATKO' Report
November 08, 2024 -
KATKO KL Terminal Blocks Comply with the Requirements of the IEC TS 60947-7-5 Technical Specification
April 29, 2025 -
KATKO LoadSafe Product Family – New Additions, Now Available
January 14, 2025 -
Katko Products Available on EPLAN Data Portal
September 14, 2023 -
KATKO Strengthens Presence in Sweden: Kim Rannanjärvi Appointed Sales Manager
July 28, 2025 -
KATKO Strengthens Presence in UK: Ian Bullock Appointed Sales Director
November 10, 2025 -
New Front Plate for KU 16–40A Switch Series
August 26, 2025 -
Jyrki Luomi has been appointed as the Commercial Director of Katko Oy
September 17, 2024 -
Product Update: Extended Cable Range for 95-Series Connectors
October 30, 2025 -
The Core of Responsible and Transparent Collaboration – Partner Code of Conduct
February 06, 2025
