Baco ZA5 Contact Block

The Baco ZA5 Contact Block is a single pole changeover component for industrial automation and control circuits. It provides 1 Normally Open and 1 Normally Closed contact configuration, delivering reliable switching in compact panel-mount assemblies. Engineered for integration with BACO’s modular 22 mm and 30 mm control station systems, the ZA5 combines secure screw terminal connections with clip-based mounting for straightforward installation in control panels up to 6 mm thick.

## Technical Specifications

**Contact Configuration:** 1 NO / 1 NC (single pole changeover)

**Electrical Ratings:**
• AC-15: 6 A at 230 VAC and 120 VAC
• AC-21: 14 A at 230 VAC
• Maximum thermal current (Ith): 10 A to 16 A
• Maximum fuse rating: 16 A
• Insulation voltage: 600 VAC to 690 VAC

**Environmental:**
• Operating temperature: −30 °C to +60 °C (standard); −30 °C to +40 °C (with pilot lights)

**Physical:**
• Panel cut-out diameter: Ø 22.3 mm +0.4/−0 (standard); Ø 30.5 +0.5/−0 (super-flush)
• Panel thickness: 1 to 6 mm
• Terminal type: Screw terminals
• Weight: 0.83 lbs

## Key Features

• Changeover contact structure enables both normally-open and normally-closed switching from a single block
• Clip-mounted design with integrated mounting collar for rapid panel integration
• Screw terminal connections ensure repeatable, field-serviceable wire termination
• Modular architecture compatible with BACO BX series control stations

## Typical Applications

Control signal switching, interlock circuits, pilot light control, industrial pushbutton stations, and automation panel wiring.

## Compatibility & Integration

The ZA5 integrates with BACO 22 mm and 30 mm modular component families, including pushbutton heads and mounting clips. Direct panel mounting and DIN rail assembly are both supported via appropriate mounting accessories. Conforms to EN/IEC 60947-5-1, UL 508, and CSA 22.2.