Allen-Bradley ST3PA-A Industrial Timer With Socket Base

Description:

The ST3PA-A Industrial Timer with Socket Base is used in industrial control systems to provide adjustable on-delay timing functions for sequential machine operations and automation processes. Commonly installed in control panels, packaging machinery, conveyors, motor starters, process equipment, and manufacturing systems requiring repeatable time-delay switching functions. Maintenance teams and system integrators use this part for control panel repairs, automation retrofits, machine upgrades, and OEM equipment maintenance. The ST3PA-A provides adjustable timing ranges from 0.5 seconds to 3 minutes using an 8-pin plug-in socket design.

Applications:

The ST3PA-A industrial timer is commonly used to provide delayed start, sequence control, interlocking, and timed switching functions in industrial automation systems. Typical applications for the ST3PA-A include motor control circuits, pump sequencing systems, conveyor start delays, packaging equipment, HVAC systems, and process automation machinery requiring adjustable on-delay timing with easy replacement through an 8-pin socket base configuration.

Technical Specifications:

• Manufacturer: Generic / FINGLAI Compatible
• Model / Part Number: ST3PA-A
• Product Type: Industrial Timer Relay
• Timer Type: On-Delay Time Relay
• Supply Voltage: 220 VAC
• Frequency: 50/60 Hz
• Timing Range: 0.5 Seconds to 3 Minutes
• Timing Selections: 0.5 s, 5 s, 30 s, 3 min
• Contact Configuration: DPDT (Double Pole Double Throw)
• Contact Rating: 3A @ 250 VAC, 5A @ 28 VDC
• Power Consumption: 3 W Maximum
• Repeat Accuracy: ±0.3%, ±0.05 Seconds
• Setting Error: ±0.5%, ±0.05 Seconds
• Indication Method: LED Indicator
• Setting Method: Front Adjustment Knob
• Terminal Type: 8 Pin Plug-In Base
• Compatible Sockets: PF083A, PF085A, US-08
• Mounting Type: Socket Mount, DIN Rail Mount, or Panel Mount
• Dimensions: 50 × 40 × 57.5 mm
• Operating Temperature: 0°C to 50°C
• Maximum Humidity: 95% RH Non-Condensing
• Mechanical Life: 1 × 10⁶ Operations
• Electrical Life: 1 × 10⁵ Operations
• Application Environment: Industrial Automation and Control Systems

Common Replacements:

• Omron H3CR-A8 Time Relay
• IDEC GT3A-A11SA20 Timer Relay
• Au-tonics AT8N Time Delay Relay