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SSK850-ST12  - Switch-plug combination K900/VB/ST12 with brake (Kedu KOA12 replacement)

Switch-plug combination K900/VB/ST12 with brake (Kedu KOA12 replacement)

Klinger & Born
Product no.:
0,80 kg
118,10 EUR * 99,24 EUR (net)
* incl. VAT
Shipping time : 1-3 days1 (ex stock}


AC switch-plug combination for circular saws, planing machines, shredders or other machines and motors, which after power failure and power recovery are not allowed to turn back on.

Required for machines for commercial operation, which do not have an engine brake, but are required to have one.

The switch is Usable as a replacement for Kedu KOA12


  • 3-pole switching. Suitable for mains connection without neutral conductor
  • Switching capacity up to 4 kW
  • Braking electronics, braking current up to 16 A adjustable
  • Undervoltage release
  • Phase inverter
  • Connection possibility for thermal contact
  • Splash water proof cover


The neutral conductor is not connected.

Not suitable for motors in delta connection, which for example need a voltage of 230V in the terminal box for a electromechanical brake.
If needed a brake can be tapped between a phase and a star point 230V for motors in star connection.

Installation / connection (refer to wiring diagram) / brake

The switch is screwed on the housing base. Grid dimension of the screws: 68 x 68 mm.
The cable outlet is on the side of the housing base, by factory setting on the opposite side of the keypad. by rotating the base, the cable can be routed to all 4 sides.

The blue wire is not a neutral conductor, it's the connection for the thermal contact. If the motor does not have a thermal contact, the blue wire has to be connected with the grey wire on the terminal board.

The brake is by factory setting set to the lowest current. The braking current can be adjusted with a potentiometer.


Voltage Ue
400 V~
Current le
9,0 A
KB-04, 400V~
Coil voltage Uc
Switching capacity
4.0 kW 400V~/AC-3
Type of actuation
Mechanically on/off
CEE 3P+N+E , 16A
Housing material
Polypropylene PP
Mounting position
Protection class
IP54, splash water proof
Connection cable
1 m H07RN-F G1,5
Mounting dimensions
68 x 68 mm


Customs tariff number
Country of origin

Notes on delivery times1

The delivery time applies to deliveries to Germany.
Delivery times for other countries can be found at Information on the calculation of the delivery date


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Accessories and replacement parts

Contactor Klinger&Born KB-04/400/ 3 N/O, 1 N/C

Contactor Klinger&Born KB-04/400/ 3 N/O, 1 N/C

Replacement-contactor 400V, 3 N/O contacts, 1 N/C contacts for Klinger&Born switch and switch-plug combinations

28,70 EUR
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