Overview
The Square D 9050-B0-3D pneumatic timing relay is a robust industrial-grade control device commonly used in machinery automation, process control, and general electrical switching applications. Square D, a brand of Schneider Electric, manufactures timing relays designed for precise, dependable operation in demanding industrial environments. This unit comes equipped with the 9007-BO-3 accessory and is supplied in new, no-box condition.
Key Features
- Pneumatic timing mechanism for accurate, repeatable timing cycles
- Sealed construction resists dust and moisture ingress in industrial settings
- Screw-clamp terminal connections for reliable wiring
- Compact panel-mount design fits standard control cabinet layouts
- Multiple contact configuration options (1NO/1NC standard on many 9050 variants)
Technical Specifications
Specifications listed below apply to the Square D 9050 series unless verified otherwise for this specific model designation:
- Manufacturer: Square D / Schneider Electric
- Series: 9050 Pneumatic Timing Relay
- Contact Rating: 15 A (typical for Series)
- Maximum Voltage: 600V AC (contact rated)
- Timing Range: 0.1 second to 1 minute (typical pneumatic range)
- Terminal Type: Screw Clamp
- Mounting: Panel mount
- Operating Temperature: 68–104°F (20–40°C)
- Timing Modes: On-Delay, Off-Delay (convertible)
- Reset Time: ~29 ms On-Delay / ~27 ms Off-Delay typical
- Condition: New – No Box
Typical Applications
- Machine tool sequencing and cycle timing
- Motor starter hold-in circuits and soft-start delays
- Conveyor and material-handling automation
- Process equipment dwell and transition timing
- General industrial control logic and relay ladder diagrams
- HVAC and refrigeration equipment timing functions
Compatibility & Replacements
Compatible With
- Square D control panels and cabinets
- Standard 110–120 VAC / 50–60 Hz control circuits
- Relay logic-based automation systems
- Standard DIN rail and panel-mount assemblies
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. Other Square D 9050 series variants (9050-AO10E, 9050-AO10EV02, etc.) share similar functional characteristics but may differ in timing settings and coil specifications. Confirm exact model match before substitution.
Works With
- Pneumatic control logic (air-operated timing mechanism)
- Standard 24–120 VAC relay coils (coil voltage varies by model)
- Hardwired control circuits and ladder logic diagrams
- Industrial control software (simulation/documentation only; timing relay itself is non-networked)
