Overview
The Cooper B-Line PB3 pushbutton enclosure is a robust Type 12 control enclosure designed for industrial operator stations and machine-mounted pushbutton applications. This compact, three-hole steel enclosure combines NEMA 12, 13, and 4X ratings with IP65 protection, making it suitable for washdown and general industrial environments. The detachable hinge cover with captive screws ensures quick access to internal components while maintaining seal integrity during operation.
Key Features
- NEMA 12/13/4X and IP65 rated — protects against dust, moisture, and light splash
- Steel construction with ANSI 61 gray polyester powder finish for corrosion resistance
- Concealed detachable hinges — quick removal; captive screw design prevents loss
- Three operator holes (30.5 mm standard) — accommodates standard pushbutton units and selector switches
- Compact footprint — 7-1/4″ height × 6-1/4″ width × 3″ depth fits tight control panel installations
- Standard mounting feet — wall or panel-mount ready with external feet
Technical Specifications
- Model: PB3
- Enclosure Type: Type 12 Standard Pushbutton
- Number of Holes: 3
- Hole Size: 30.5 mm (1.20″ diameter)
- Material: Steel with polyester powder finish
- Finish: ANSI 61 Gray
- NEMA Rating: NEMA 12, 13, 4X
- IP Rating: IP65
- Height: 7-1/4″ (184 mm)
- Width: 6-1/4″ (159 mm)
- Depth: 3″ (76 mm)
- Weight: Approximately 3 lbs (1.4 kg)
- Cover Type: Hinged with captive screws
- Mounting: Surface mount with external feet
- Certifications: UL 508, CSA 22.2
Typical Applications
- Machine tool control stations and operator panels
- Industrial conveyor and pump control enclosures
- Factory floor emergency stop and start/stop stations
- Washdown-rated equipment control cabinets
- HVAC and building automation system enclosures
- General industrial operator interface applications
Compatibility & Replacements
The Cooper B-Line PB3 is compatible with standard 30.5 mm (1.20″) industrial pushbuttons, selector switches, and indicator lights from major manufacturers including Siemens, ABB, Eaton, and Schneider Electric. Common direct replacements include other Cooper B-Line PB series enclosures with matching hole configurations (PB1, PB2, PB4, etc.). The three-hole configuration is interchangeable with other NEMA Type 12 pushbutton enclosures of similar size from competing brands, though Cooper B-Line offers superior hinge and seal design. Consult the manufacturer for custom hole configurations and sizes.
