Selec 800SQ-A Analog Timer

The Selec 800SQ-A is a compact, DIN-rail mounted analog timer relay designed for reliable timing control in industrial panels. It supports two key timing modes (On-Delay and Interval) and offers 8 selectable time-ranges, making it suitable for a variety of control tasks such as conveyor timing, machine start delays, inter-lock delay sequences, and general automation timing.

Key Features

• Timing functions: On-Delay (delay before output energises) & Interval (output energises immediately and stays for the set time) modes. selec.com+1

• Eight selectable time-ranges: 3, 10, 30, 60 (seconds or minutes) covering short to moderate delays. selec.com+1

• Fine timing resolution: ±0.3 second resolution for precise control. pneucons.com+1

• Excellent repeat accuracy: Setting accuracy ±5% of full-scale; repeat accuracy ±0.5% or ±50ms (whichever is greater). selec.com+1

• Relay output: Single SPDT contact (1 C/O) rated at 5 A for 250 V AC or 24 V DC resistive loads. DigiKey+1

• Dual-supply voltage compatibility: Available for 230 V AC & 24 V AC/DC versions. selec.com+1

• Slim form-factor: Width 22.5 mm (DIN-rail friendly) for space-efficient panel mounting. selec.com+1

• Visual status indication: Integrated LEDs for “Power ON” and “Relay ON” status. selec.com

• Safe wiring: Finger-safe terminals enhance usability and safety in industrial environments. selec.com

Technical Specifications

Applications

• Delayed start of motors, pumps or conveyors (using On-Delay mode)

• Interval timing for solenoids, valve actuation or process delays (using Interval mode)

• Automation panel installations where space is limited (22.5 mm width)

• Control systems requiring compact and reliable timing with visual status indication

• Retrofitting into existing DIN-rail systems for cost-effective control upgrade

Why Choose the Selec 800SQ-A?

• Versatility: With two timing functions and eight time-ranges, it provides flexibility to handle many process timing needs.

• Panel-friendly design: Slim 22.5 mm width saves valuable panel space, and standard DIN-rail mounting ensures compatibility.

• Precision: Accurate timing control with fine resolution and repeatability ensures consistency in automation processes.

• Robust output: 5 A SPDT contact is adequate for many control circuits, making it reliable for industrial use.

• Visual feedback: LED indicators help with quick status monitoring and maintenance checks.

• Safety and ease: Finger-safe terminals reduce risk during wiring; standardized mounting simplifies integration.

Integration & Installation Tips

• Ensure the correct supply voltage variant (230 V AC vs 24 V AC/DC) is selected for your panel.

• Mount on a standard 35 mm DIN-rail or back-panel per installation guidelines.

• Set the timing range knob according to required timing (e.g., seconds vs minutes); double-check scale markings.

• Use the front dial/knob to fine-adjust the time within the selected range.

• Provide appropriate load protection (e.g., fuse or circuit-breaker) as per your panel design.

• Confirm wiring: Connect the supply to A1/A2, and the load via the SPDT contact terminals as per wiring diagram.

• In designs with frequent cycling, verify that load current does not exceed 5 A, considering inrush currents.

• For maintenance, ensure sufficient ambient cooling and avoid mounting next to high-heat devices to maintain accuracy and life.

Summary

The Selec 800SQ-A is a compact, reliable analog timer relay designed for industrial automation panels that require precise timing functions within limited space. With dual-mode operation, selectable time-ranges, high accuracy, and DIN-rail friendly design, it’s an excellent choice for your electronics components shop when offering timing solutions for automation systems, control panels, robotics modules or industrial sensors setups.