Black Box SW590A-R2 Code Operated Switch COS-II

Overview
The Black Box SW590A-R2 Code Operated Switch COS-II is a compact, rugged switching device designed for secure, code based activation in a wide range of industrial and commercial environments. This model delivers reliable performance with a simple keypad interface that accepts a user defined numeric code to open or close the contact set. Its solid construction and intuitive operation make it ideal for access control, equipment interlocks, and safety circuits where precise, repeatable activation is required.

Key Features

• Four digit programmable code with optional master code
• LED status indicators for power, fault and code entry
• Normally open (NO) and normally closed (NC) contacts rated 10 A at 250 V AC
• Self-test mode verifies keypad and contact operation
• Backlit keypad for low light conditions
• Mounting options include DIN rail and panel mount
• Operating temperature range -20 degrees to 70 degrees C

Technical Specifications

• Model number: SW590A-R2
• Manufacturer: Black Box
• Power supply: 12 V DC, 250 mA max
• Contact rating: 10 A at 250 V AC (max 30 V DC)
• Contact configuration: SPST, NO and NC
• Input method: 4-key membrane keypad
• Dimensions (L x W x H): 120 mm x 45 mm x 30 mm
• Weight: 180 g
• Environmental protection: IP20

Typical Applications

• Access control for doors, cabinets and equipment enclosures
• Safety interlocks on machinery and production lines
• Control of lighting or HVAC zones that require code entry
• Secure activation of alarm or monitoring systems
• Industrial automation where operator verification is needed
• Test benches and laboratory equipment requiring coded operation

With its dependable code operation, clear visual feedback, and versatile mounting options, the Black Box Code Operated Switch COS-II provides a cost-effective solution for any application that demands secure, repeatable switching without the complexity of larger control panels.