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Red Festo ZSB-1/8-B two-hand control block in box

Festo

Festo ZSB-1/8-B electrician tool 576656

SKU CH-A5BG-V5AEJ MPN ZSB-1/8-B

A two-hand control block for pneumatic safety circuits, supplied as a single red unit in a box

  • TypeTest Equipment
  • Color/FinishRed
  • Item Count1 pack
  • Selling UnitBox
  • Parts3 Years
  • Labor1 Year
  • Two-hand safety control for pneumatic circuits
  • Festo ZSB-1/8-B model 576656 designed for two-hand operation
  • 4 mm port connections suit standard pneumatic tubing
  • Red finish provides clear visual identification in panels
  • Test equipment classification confirms measurement and control function

Two-hand control block

The Festo ZSB-1/8-B is a pneumatic two-hand control block designed for safety-critical machine functions. It requires simultaneous operation with both hands to activate connected equipment. The unit features a red housing and 4 mm port connections for compressed air supply. Model number 576656 identifies this specific configuration.

Safety circuit integration

This component suits engineers building or maintaining safety circuits that must meet two-hand start requirements. It is not intended for single-hand actuation, simple on-off switching, or applications needing electrical signal outputs instead of pneumatic logic. Buyers who need a different port thread size or an electrical safety relay should look at other product types.

4 mm pneumatic ports

The defining specification is the 4 mm port size for compressed air tubing. This dimension determines compatibility with existing pneumatic lines and fittings in the control panel. Verify that the installation uses matching 4 mm tubing before ordering. The block is sold individually in a box.

Highlights

  • Two-hand safety control for pneumatic circuits
  • Festo ZSB-1/8-B model 576656 designed for two-hand operation
  • 4 mm port connections suit standard pneumatic tubing
  • Red finish provides clear visual identification in panels
  • Test equipment classification confirms measurement and control function

Specifications

BrandFesto
ModelZSB-1/8-B
TypeTest Equipment
Color/FinishRed
Item Count1 pack
Selling UnitBox
Parts3 Years
Labor1 Year

Questions about this item

What comes inside the ZSB-1/8-B box and what must I source separately?

The box contains one Festo ZSB-1/8-B two-hand control block in red. No cables, tubing or mounting hardware are included; those items must be purchased separately.

Which version of the ZSB-1/8-B should I select for a 4 mm pneumatic connection?

The model listed is the 4 mm variant (MPN 576656). Choose this version when your system uses 4 mm push-in fittings; other port sizes are different part numbers.

How does the two-hand control block function once installed in a safety circuit?

It requires both operator hands to actuate simultaneously, sending a pneumatic signal only when both push-buttons are pressed within the required time window, satisfying two-hand start safety requirements.

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