ABB 1SAP181200R0001 (TA528)  9‑pole spring terminal plug (COM1)
May 29, 2026

ABB 1SAP181200R0001 (TA528) 9‑pole spring terminal plug (COM1)

1SAP181200R0001 corresponds to TA528, a 9‑pole spring terminal plug (COM1) for ABB AC500 PLC CPUs. It is supplied as a set of 5 pieces, used to terminate the COM1 serial communication port on AC500 CPUs, enabling fast and reliable field wiring without soldering.

Description

Product Introduction

1SAP181200R0001 corresponds to TA528, a 9‑pole spring terminal plug (COM1) for ABB AC500 PLC CPUs. It is supplied as a set of 5 pieces, used to terminate the COM1 serial communication port on AC500 CPUs, enabling fast and reliable field wiring without soldering.

Model Explanation

  • 1SAP181200R0001: Full ABB part number

  • TA528: Product designation (COM1 Plug, 9 poles, spring terminal)

  • 181200: AC500 communication terminal platform

  • R0001: Hardware revision

  • Contents: 5 × 9‑pole spring terminal plugs for CPU COM1

Technical Parameters

  • Pole Count: 9 pins (COM1 port)

  • Connection Type: Spring terminal (tool‑free wiring)

  • Rated Voltage: 300 V AC/DC

  • Rated Current: 5 A per pin

  • Wire Size: 0.2–1.5 mm² (AWG 24–16)

  • Dimensions: Approx. 100 mm × 150 mm × 40 mm (per set)

  • Weight: Approx. 0.4 kg (5 pieces)

  • Operating Temperature: −25 °C to +60 °C

  • Certifications: CE, RoHS

  • Compatibility: AC500 V2/V3 CPU models (PM56xx, PM57x, PM58x, PM59x)

Interface & Installation

  • Port: Dedicated for CPU COM1 (RS‑232/RS‑485)

  • Mounting: Snaps onto the COM1 port of AC500 CPU

  • Wiring: Spring‑loaded terminals; insert stripped wire and close lever

  • No tools required for wiring; plug‑and‑play installation

Core Functions

  • COM1 Termination: Provides a secure, tool‑free connection for the CPU’s primary serial port

  • Field Wiring: Enables direct connection to RS‑232/RS‑485 devices (e.g., HMI, modems, sensors)

  • Maintenance: Facilitates quick replacement or reconfiguration without soldering

  • EMI Protection: Ensures reliable communication connections in industrial environments

Application Scenarios

  • AC500 PLC systems using COM1 for serial communication (RS‑232/RS‑485)

  • Industrial automation requiring fast, reliable field wiring without tools

  • Machinery, process control, and building automation with AC500 PLCs

  • Projects where frequent reconfiguration or replacement of communication cables is needed

Usage & Maintenance

  1. Ensure PLC is powered off before installation or wiring.

  2. Align the plug with the CPU COM1 port and press firmly until it clicks.

  3. Strip wire ends (6–8 mm), open spring lever, insert wire, and close lever.

  4. Periodically check for loose wires or damaged terminals; replace if worn.

  5. Compatible with all standard AC500 CPU models with a COM1 serial port.


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