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KU 340CO

Change-over switch 1-0-2 3x40A

KU 340CO

Katko LoadSafe changeover switches 16–40A are compact solutions for safe and reliable switching between power sources in smaller electrical systems. Designed for space-efficient installations, they provide clear source selection and dependable operation in control panels and distribution boards.

Well suited for applications where continuity of supply is important, these switches offer consistent performance and long service life in everyday use. The changeover switches are VDE-approved and independently tested by third parties, ensuring compliance with international quality and safety standards. Manufactured in Finland, these switches and accessories provide high performance and installation efficiency, helping you build durable power distribution solutions.

E-number FI
3663116
GTIN
6419410337806
Rated operational current AC-22A 415V (A)
40
Rated operational current AC-22A 690V (A)
40
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Product details and documents

Technical data

Depth
79.7 mm
ETIM Class
EC000216
E-number FI
3663116
GTIN
6419410337806
Height
71 mm
Max. term. torque (Nm)
1.8
Mech. endurance (no. of oper.)
50000
Net weight
0.3979 kg
Nom. values w/cable size (mm²)
16
Number of poles
3
Product type
KU 340CO
Rated breaking cap. ICN AC-23A 415V (A)
320
Rated breaking cap. ICN AC-23A 500V (A)
200
Rated breaking cap. ICN AC-23A 690V (A)
200
Rated fused short-ckt current back-up fuse opt 1 (A)
40
Rated fused short-ckt current peak value (kA)
4.5
Rated fused short-ckt current RMS Ik opt 1 (kA)
25
Rated fused short-ckt. impulse withstand volt. Uimp (kV)
8
Rated insulation volt. Ui (V)
800
Rated operational current AC-21A 415V (A)
40
Rated operational current AC-21A 500V (A)
40
Rated operational current AC-21A 690V (A)
40
Rated operational current AC-22A 415V (A)
40
Rated operational current AC-22A 500V (A)
40
Rated operational current AC-22A 690V (A)
40
Rated operational current AC-23A 415V (A)
40
Rated operational current AC-23A 500V (A)
25
Rated operational current AC-23A 690V (A)
25
Rated oper. power 3-ph 1500rpm SQ cage motor AC-23A 415V (kW)
22
Rated oper. power 3-ph 1500rpm SQ cage motor AC-23A 500V (kW)
15
Rated oper. power 3-ph 1500rpm SQ cage motor AC-23A 690V (kW)
22
Rated short-ckt. making cap. Icm 690V (kA)
1
Rated short-time withstand current 1s Icw 690V (kA)
0.7
Rated therm. current Ith (A)
63
Short product description
Change-over switch 1-0-2 3x40A
Switch type
KU 340 / KU 440
Technical name
3x40A 690V AC-22
Terminals bolt size (Cu mm²)
1,5..16
Volume
0.5353 l
Width
94.6 mm

Dimensional drawing

Logistical data

Package size 1
1
Package size 1 depth
79.7 mm
Package size 1 GTIN code
6419410337806
Package size 1 height
71 mm
Package size 1 volume
0.451 l
Package size 1 weight
0.3979 kg
Package size 1 width
79.7 mm
Sales unit
1

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