Busch · Pin / key

0652 556 531

Name: Busch 0652 556 531
Brand: Busch
SKU: 0652 556 531

Manufacturer’s part number

Where to get it

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Find it on Busch’s site

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As printed in the source

6.6.3 Wiring Diagram Level Switch (Optional) Article number: 0652 556 531 Connector: M12x1, 4-pin

Fits 12 models

As listed by Busch

Model	Source
COBRA NC 0100 B	Instruction manual COBRA NC 0100-0300 B ACV_A0 EN
COBRA NC 0100 B ECOTORQUE	Instruction manual COBRA NC 0100-0300 B ACV_A0 EN
COBRA NC 0200 B	Instruction manual COBRA NC 0100-0300 B ACV_A0 EN
COBRA NC 0200 B ECOTORQUE	Instruction manual COBRA NC 0100-0300 B ACV_A0 EN
COBRA NC 0300 B	Instruction manual COBRA NC 0100-0300 B ACV_A0 EN
COBRA NC 0300 B ECOTORQUE	Instruction manual COBRA NC 0100-0300 B ACV_A0 EN
COBRA NC 0400 B	Instruction manual COBRA NC 0400 B ACV_B0 EN
COBRA NC 0400 B ECOTORQUE	Instruction manual COBRA NC 0400 B ACV_B0 EN
COBRA NC 0600 C	Instruction manual COBRA NC 0600-0630 C WCV EN
COBRA NC 0630 C	Instruction manual COBRA NC 0400 B ACV_B0 EN
COBRA NC 0630 C ECOTORQUE	Instruction manual COBRA NC 0400 B ACV_B0 EN
COBRA NC 1000 B	Instruction manual COBRA NC 0400 B ACV_B0 EN

When ordering, give the model and serial number from the nameplate: some parts changed within a model’s life.

Part number, name and fitment as published by Busch, retrieved 2026-10-19. Vac & Air is independent and not affiliated with the manufacturers shown; names and numbers identify the parts only.