Overview
The Square D 9050-A0-10E /A LP pneumatic timer is a double-pole time delay relay designed for industrial electrical switching and control applications. Built with a pneumatic timing mechanism and rated for 600VAC maximum voltage, this relay provides dependable on-delay and off-delay timing functions. Its screw-clamp terminal design enables straightforward integration into panel-mounted control circuits, motor starters, and automation systems where timed switching is essential.
Key Features
- Double-Pole Configuration: 2-pole contacts with 15-amp contact rating at 600VAC
- Pneumatic Timing: Timing range from 0.1 second to 1 minute with on-delay 29ms and off-delay 27ms reset time
- On-Delay Convertible: On-delay timing mode with convertible configuration for flexible switching logic
- UL/CSA Listed: UL Listed and CSA Certified for industrial use
- Screw-Clamp Terminals: Reliable screw-clamp terminal connections for secure wiring
- Panel Mounting: Panel-mounted design for compact control enclosures
Technical Specifications
The 9050-A0-10E /A LP timer is engineered to meet the demanding requirements of industrial control systems while maintaining stable long-term performance in field installations.
Typical Applications
- Motor starter soft-start and sequencing delays
- Pump priming and pressure build-up timing
- Conveyor system acceleration and deceleration control
- HVAC equipment warm-up and cool-down cycles
- Industrial process timing and batch control
- Panel-mounted circuit protection and interlock delays
Compatibility & Replacements
Compatible With
- Square D Class 9050 pneumatic timer systems
- Allen-Bradley motor control centers and starters
- Schneider Electric industrial control panels
- Standard three-phase and single-phase motor circuits
- Modular and enclosed push-button stations
- General-purpose relay bases and sockets (panel-mounted)
Replaces / Drop-In Replacement For
- Square D 9050-AO-10E (alternate part numbering)
- Square D 9050A010E (space-separated variant)
- Square D Class 9050 Series A Type A010E timers
Works With
- Square D motor starters and contactors
- Pneumatic timing logic and relay-based control circuits
- AC control voltage systems (120V, 240V, 480V coil options available)
- Standard industrial push-button and selector-switch interfaces
