Designed for safe and reliable power source switching, Katko enclosed changeover switches (16-160A) ensure uninterrupted operation where continuity of supply is essential. They are engineered for clear operation and long-term durability.
Used in applications ranging from backup power systems to industrial installations, these switches provide dependable performance with straightforward installation and maintenance.
Product Number
Rated operational current AC-23A 415V (A)
Enclosure type
Enclosure
Technical data
Cable entries
3 x M25 (11,0-17,0 mm), plastic
delivery_time
15
Depth
104 mm
EMC
false
Enclosure
M2 (96 x 130 x 74 mm)
Enclosure type
Polycarbonate
ETIM Class
EC000216
GTIN
6419410347096
Height
130 mm
IP rating
IP66
Max. term. torque (Nm)
1.8
Mech. endurance (no. of oper.)
20000
Nom. values w/cable size (mm²)
10
Number of poles
4
Product type
TKM 440VV YR M2 3XM25P
Rated breaking cap. ICN AC-23A 415V (A)
320
Rated fused short-ckt. impulse withstand volt. Uimp (kV)
8
Rated insulation volt. Ui (V)
690
Rated operational current AC-21A 415V (A)
40
Rated operational current AC-22A 415V (A)
40
Rated operational current AC-23A 415V (A)
40
Rated oper. power 3-ph 1500rpm SQ cage motor AC-23A 415V (kW)
18.5
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
Change-over switch 4x40A IP66
Switch type
Cam Switch
Technical name
4x40A 400V 18.5kW
Terminals bolt size (Cu mm²)
1,5..16
Volume
1.2979 l
Width
96 mm
Dimensional drawing
Logistical data
Package size 1
1
Package size 1 GTIN code
6419410347096
Sales unit
1
Downloadables
- Dimensional drawings media (IsoSafe_M2_Dim.png)
- Connection diagram media (KATKO_TKM_4P_VV_diagram.jpg)
- Brochures (Katko IsoSafe Catalogue - Safety Switches & Isolators)
- Brochures (Katko IsoSafe Tuoteluettelo - Turvakytkimet FI)
- Brochures (Katalog Wyrobów KATKO IsoSafe – Wyłączniki bezpieczeństwa i rozłączniki PL)
- STEP files (IsoSafe_M2_YR.zip)
- DWG files (IsoSafe_M2_LK10.zip)
- Installation manuals (KATKO_IsoSafe_TKM_installation_manual_39.pdf)
Related accessories
Latest News & Insights
-
The Core of Responsible and Transparent Collaboration – Partner Code of Conduct
February 06, 2025 -
Simo Kettunen has been appointed as the Sales Director for Finland and the Baltics
May 08, 2026 -
Product Update: Extended Cable Range for 95-Series Connectors
October 30, 2025 -
Jyrki Luomi has been appointed as the Commercial Director of Katko Oy
September 17, 2024 -
New Front Plate for KU 16–40A Switch Series
August 26, 2025 -
KATKO Strengthens Presence in UK: Ian Bullock Appointed Sales Director
November 10, 2025 -
KATKO Strengthens Presence in Sweden: Kim Rannanjärvi Appointed Sales Manager
July 28, 2025 -
KATKO Strengthens Presence in Morocco with Africa Drives Partnership
May 06, 2026 -
Katko Products Available on EPLAN Data Portal
September 14, 2023 -
KATKO LoadSafe Product Family – New Additions, Now Available
January 14, 2025 -
KATKO KL Terminal Blocks Comply with the Requirements of the IEC TS 60947-7-5 Technical Specification
April 29, 2025 -
KATKO Has Published Its First 'Sustainability at KATKO' Report
November 08, 2024 -
Katko and Solar Group Enter Strategic Partnership to Strengthen Nordic Market Presence
February 11, 2026 -
IsoSafe KSM series upgraded – now with better performance and easier installation
March 05, 2026 -
Introducing the Refreshed LK10 handle: New Fresh Design, Same Trusted Performance
September 02, 2024 -
Discontinuation of 3-pole EVA and VKA 80–160A Switches
June 23, 2025
