KATKO

16-40A Switch Disconnectors

Katko 16-40A switch disconnectors are available with either DIN-rail or screw mounting (KU) and door mounting (RT).

3-pole and 4-pole KU-switches as standard. Other configurations on request.

 

Switch technology by means of silver contacts ensures safe and durable operation.

Compatible (KU & RT) with handles LKX50, LKX50YR, LK10 and LK10YR.

Compatible (KU) with LXXXAD11 shafts (XXX is length of the shaft in millimetres)

 

Door mounted versions come with integrated 42mm aluminium shaft with AD11 adapter. Handle is required for door mounting installation. When using any other handle than LKX50, LKX50YR, LK10RT or LK10RTYR you will also need a special counter nut for the handle (RT COUNTER NUT).

KU switch will be delivered with black direct handle. KU switches can also be used with external shaft and handle.

 

Tested according to IEC 60947-3.

Read more
  • Din rail/screw and door mounting options available
  • 3 and 4 pole as standard, other configurations on request
  • Silver contacts ensure safe and durable operation
  • Tested according to IEC 60947-3

Selected variant

Available in several variants
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Technical data / Documents

Product description

Accessories & Related products

Selected variant

Technical data

General Data
Weight 0,12 kg
Rated thermal current, Ith 25 A
Nominal values with cable size 4
Number of poles 3
Rated insulation voltage Ui 800 V
Terminals / Bolt size Cu 1.5-16
Type Screw-mounted

Rated operational current, Ie
Operational current - AC-21A - 500V 25 A
Operational current - AC-23A - 500V 16 A
Operational current - AC-22A - 690V 16 A
Operational current - AC-21A - 690V 25 A
Operational current - AC-21A - 400/415V 25 A
Operational current - AC-23A - 690V 16 A
Operational current - AC-22A - 500V 16 A
Operational current - AC-23A - 400/415V 16 A
Operational current - AC-22A - 400/415V 16 A

Rated operational power for 3-phase (1500 r.p.m.) squirrel cage induction motors (kW)
Operational power - AC-23A - 400/415V 7,5 kW

*Invisible Heading*
Operational power - AC-23A - 500V 7,5 kW
Operational power - AC-23A - 690V 11 kW

Rated fused short circuit current
Peak value 3,8 kA
Back-up fuse 25 A
Rated short circuit making capacity at 690V, lcm 1 kA
Rated short time withstand current at 690V (1 s), lcw 0.7 kA
R.M.S value, IK 50 kA
Rated impulse withstand voltage Uimp 8 kV

Rated breaking capacity, Icn
Breaking capacity - AC-23A - 400/415V 128 A
Breaking capacity - AC-23A - 500V 128 A
Breaking capacity - AC-23A - 690V 128 A

Additional Details
Country of origin FI
Tariff code 85365080
Max terminal torque 1.8 Nm
Electrical endurance 3000 operations
Mechanical endurance 50000 operations

Downloads

Measurements and connections

Product description

Katko 16-40A switch disconnectors are available with either DIN-rail or screw mounting (KU) and door mounting (RT).

3-pole and 4-pole KU-switches as standard. Other configurations on request.

 

Switch technology by means of silver contacts ensures safe and durable operation.

Compatible (KU & RT) with handles LKX50, LKX50YR, LK10 and LK10YR.

Compatible (KU) with LXXXAD11 shafts (XXX is length of the shaft in millimetres)

 

Door mounted versions come with integrated 42mm aluminium shaft with AD11 adapter. Handle is required for door mounting installation. When using any other handle than LKX50, LKX50YR, LK10RT or LK10RTYR you will also need a special counter nut for the handle (RT COUNTER NUT).

KU switch will be delivered with black direct handle. KU switches can also be used with external shaft and handle.

 

Tested according to IEC 60947-3.

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Parts Weight Rated thermal current, Ith Nominal values with cable size Number of poles Type Operational current - AC-21A - 500V Operational current - AC-23A - 500V Operational current - AC-22A - 690V Operational current - AC-21A - 690V Operational current - AC-21A - 400/415V Operational current - AC-23A - 690V Operational current - AC-22A - 500V Operational current - AC-23A - 400/415V Operational current - AC-22A - 400/415V Operational power - AC-23A - 400/415V Operational power - AC-23A - 500V Operational power - AC-23A - 690V Peak value Back-up fuse R.M.S value, IK Rated impulse withstand voltage Uimp Breaking capacity - AC-23A - 400/415V Breaking capacity - AC-23A - 500V Breaking capacity - AC-23A - 690V Price
KU340.png
KU 316, Screw Mounted, 3-pole, 16A
Art:
25769 Copied
0,12 kg
25 A
4
3
Screw-mounted
25 A
16 A
16 A
25 A
25 A
16 A
16 A
16 A
16 A
7,5 kW
7,5 kW
11 kW
3,8 kA
25 A
50 kA
8 kV
128 A
128 A
128 A
KU340.png
KU 325, Screw Mounted, 3-pole, 25A
Art:
25770 Copied
0,12 kg
40 A
10
3
Screw-mounted
25 A
25 A
25 A
25 A
25 A
25 A
25 A
25 A
25 A
11 kW
15 kW
22 kW
3,8 kA
25 A
50 kA
12 kV
200 A
200 A
200 A
KU340.png
KU 340, Screw Mounted, 3-pole, 40A
Art:
25771 Copied
0,12 kg
63 A
16
3
Screw-mounted
40 A
25 A
40 A
40 A
40 A
25 A
40 A
40 A
40 A
22 kW
15 kW
22 kW
4,5 kA
40 A
25 kA
8 kV
320 A
200 A
200 A
KU440.png
KU 416, Screw Mounted, 4-pole, 16A
Art:
25772 Copied
0,15 kg
25 A
4
4
Screw-mounted
25 A
16 A
16 A
25 A
25 A
16 A
16 A
16 A
16 A
7,5 kW
7,5 kW
11 kW
3,8 kA
25 A
50 kA
8 kV
128 A
128 A
128 A
KU440.png
KU 425, Screw Mounted, 4-pole, 25A
Art:
25773 Copied
0,15 kg
40 A
10
4
Screw-mounted
25 A
25 A
25 A
25 A
25 A
25 A
25 A
25 A
25 A
11 kW
15 kW
22 kW
3,8 kA
25 A
50 kA
8 kV
200 A
200 A
200 A
KU440.png
KU 440, Screw Mounted, 4-pole, 40A
Art:
25774 Copied
0,15 kg
63 A
16
4
Screw-mounted
40 A
25 A
40 A
40 A
40 A
25 A
40 A
40 A
40 A
22 kW
15 kW
22 kW
4,5 kA
40 A
25 kA
8 kV
320 A
200 A
200 A
RT340.png
RT 316 L42AD11, Door Mounted, 3-Pole, 16A
Art:
26128 Copied
0,12 kg
25 A
4
3
Door-mounted
25 A
16 A
16 A
25 A
25 A
16 A
16 A
16 A
16 A
7,5 kW
7,5 kW
11 kW
3,8 kA
25 A
50 kA
8 kV
128 A
128 A
128 A
RT340LKX50.png
RT 316 L42AD11LKX50, Door Mounted, 3-Pole, 16A with LKX50 handle
Art:
25775 Copied
0,17 kg
25 A
4
3
Door-mounted
25 A
16 A
16 A
25 A
25 A
16 A
16 A
16 A
16 A
7,5 kW
7,5 kW
11 kW
3,8 kA
25 A
50 kA
8 kV
128 A
128 A
128 A
RT340LKX50YR.png
RT 316 L42AD11LKX50YR, Door Mounted, 3-Pole, 16A with LKX50YR handle
Art:
25778 Copied
0,17 kg
25 A
4
3
Door-mounted
25 A
16 A
16 A
25 A
25 A
16 A
16 A
16 A
16 A
7,5 kW
7,5 kW
11 kW
3,8 kA
25 A
50 kA
8 kV
128 A
128 A
128 A
RT340.png
RT 325 L42AD11, Door Mounted, 3-Pole, 25A
Art:
26129 Copied
0,12 kg
40 A
10
3
Door-mounted
25 A
25 A
25 A
25 A
25 A
25 A
25 A
25 A
25 A
11 kW
15 kW
22 kW
3,8 kA
25 A
50 kA
8 kV
200 A
200 A
200 A
RT340LKX50.png
RT 325 L42AD11LKX50, Door Mounted, 3-Pole, 25A with LKX50 handle
Art:
25776 Copied
0,17 kg
40 A
10
3
Door-mounted
25 A
25 A
25 A
25 A
25 A
25 A
25 A
25 A
25 A
11 kW
15 kW
22 kW
3,8 kA
25 A
50 kA
8 kV
200 A
200 A
200 A
RT340LKX50YR.png
RT 325 L42AD11LKX50YR, Door Mounted, 3-Pole, 25A with LKX50YR handle
Art:
25779 Copied
0,17 kg
40 A
10
3
Door-mounted
25 A
25 A
25 A
25 A
25 A
25 A
25 A
25 A
25 A
11 kW
15 kW
22 kW
3,8 kA
25 A
50 kA
8 kV
200 A
200 A
200 A
RT340.png
RT 340 L42AD11, Door Mounted, 3-Pole, 40A
Art:
26130 Copied
0,12 kg
63 A
16
3
Door-mounted
40 A
25 A
40 A
40 A
40 A
25 A
40 A
40 A
40 A
22 kW
15 kW
22 kW
4,5 kA
40 A
25 kA
8 kV
320 A
200 A
200 A
RT340LKX50.png
RT 340 L42AD11LKX50, Door Mounted, 3-Pole, 40A with LKX50 handle
Art:
25777 Copied
0,17 kg
63 A
16
3
Door-mounted
40 A
25 A
40 A
40 A
40 A
25 A
40 A
40 A
40 A
22 kW
15 kW
22 kW
4,5 kA
40 A
25 kA
8 kV
320 A
200 A
200 A
RT340LKX50YR.png
RT 340 L42AD11LKX50YR, Door Mounted, 3-Pole, 40A with LKX50YR handle
Art:
25780 Copied
0,17 kg
63 A
16
3
Door-mounted
40 A
25 A
40 A
40 A
40 A
25 A
40 A
40 A
40 A
22 kW
15 kW
22 kW
4,5 kA
40 A
25 kA
8 kV
320 A
200 A
200 A

Selected variant

Select a variant in the list

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