Parker PRTA10 Pneumatic Time Delay Relay on Delay

Product Description

The PARKER PRTA10 is a pneumatic time delay relay designed for on-delay timing applications in industrial and commercial control systems. It delivers a selectable timing range of 0.1 to 30 seconds, allowing technicians to dial in precise activation delays without external timers or additional wiring. The relay features a 2-pin, normally closed (NC) contact form and mounts via a subbase, keeping field wiring clean and simplifying replacement without disturbing existing panel connections. Licensed electricians and instrumentation technicians install this relay as part of sequencing, interlock, or motor-control circuits where a controlled time delay is required before a downstream load is energized.

The PRTA10 is suited for light commercial and industrial control panels where pneumatic timing elements are specified. Common applications include HVAC control sequencing, compressor staging, and process equipment interlock circuits. Its subbase mount design makes it a practical choice for DIN-rail or panel-mounted relay bases already in service, allowing fast swap-out during maintenance without rewiring the base. The 0.1 to 30 second range covers most standard sequencing and delay requirements encountered in field service.

Key Features

• Pneumatic on-delay timing mechanism with selectable range of 0.1 to 30 seconds
• Normally closed (NC) contact form for fail-safe or interlock circuit design
• Subbase mount configuration allows relay replacement without disturbing field wiring
• 2-pin design simplifies circuit integration in compact control panels
• Lightweight at 0.3 pounds, suitable for space-constrained enclosures

Compatibility

Designed as an OEM-style replacement or new-installation pneumatic time delay relay for subbase-mount relay sockets in industrial and commercial control panel applications.

Installation Notes

Installation should be performed by a licensed electrician or qualified control technician in accordance with applicable NEC requirements. De-energize and lock out the control panel before removing or installing the relay. Verify the subbase socket pin configuration matches the PRTA10 2-pin layout before seating the relay. Set the timing adjustment to the required delay value after installation and confirm operation with a functional test before returning the circuit to service.