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Small black rectangular contact block with screw terminals, 22 mm size

Schneider Electric

Schneider Electric ZB4BZ103 Contact Block 2NO 22 mm Black

SKU CH-05CB-5S045

A 22 mm industrial contact block providing two normally open circuits rated at 10 A and 600 V AC for Chrome metal operators

  • Size22 mm
  • Product typeIndustrial Electrical Controls & Automation
  • 2 normally open contacts for flexible circuit design
  • 10 A at 600 V AC rating handles demanding loads
  • 22 mm mounting size fits standard operator cut-outs
  • Screw-clamp terminals give secure tool-tightened connections
  • Certified to IEC 60947 and UL 508 for industrial compliance

Schneider Electric ZB4BZ103 Contact Block

The Schneider Electric ZB4BZ103 is a 22 mm contact block designed for industrial control panels. It provides two normally open contacts rated at 10 A and 600 V AC for momentary switching applications. The block suits engineers building or maintaining machinery that uses standard chrome metal operators.

Verify operator compatibility and wiring method

Confirm the panel cut-out matches the 22 mm mounting size and that the operator is a compatible ZB4 chrome metal type. The terminal connection uses screw clamps, so prepare for that wiring style. Check that the application requires momentary action rather than maintained contact.

Integrates with ZB4 metal operator stations

The block mounts behind a ZB4 chrome operator to complete a push-button or selector switch assembly. It meets CSA C22.2 No. 14, IEC 60947 series and UL 508 standards for control-circuit reliability. The compact body frees space inside crowded enclosures while delivering A600/Q600 rated performance.

How it compares

Measured against everything we stock in General Hardware & Accessories, at today’s prices. Recalculated every night.

Price $22.99
Pricier than about 54% of the 2,607 comparable items (median $18.99).

Specifications

Product
Brand nameSCHNEIDER ELECTRIC
Product typeIndustrial Electrical Controls & Automation
Size & build
Size22 mm

Questions about this item

What comes with the ZB4BZ103 contact block and what must I buy separately?

The block itself is supplied; you must purchase a compatible 22 mm chrome operator such as a push-button or selector head separately.

How do I choose between the available versions of this block?

This model is a single 2NO momentary version rated 10A at 600V AC with screw-clamp terminals; other contact forms or actions would be different part numbers.

What does the 10A 600V AC rating mean when the block is installed in a control panel?

It indicates the block can switch up to 10 amperes at 600 volts AC in an A600/Q600 duty category when mounted on a suitable 22 mm operator.

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