ABB SPAU 140 C Synchro-check Relay 50/60Hz

ABB SPAU 140 C Synchro-check Relay – Voltage Measuring Relay

The ABB SPAU 140 C Synchro-check Relay is a numerical voltage measuring relay. We design this relay for connecting two power systems together. It performs both synchro-check and voltage-check functions. The SPAU 140 C ensures safe circuit breaker closing under preset conditions. Please note this product is not active since 2012.

Key technical specifications

• Product type: Numerical synchro-check voltage measuring relay.
• Rated frequency options: 50 Hz or 60 Hz.
• Auxiliary voltage options: 80-265 V ac/dc or 18-80 V dc.
• Operation stages: Two identical operation stages.
• Synchro-check function: Available for both operation stages.
• Voltage-check function: Available for both operation stages.
• Operation mode: Continuous operation.
• Self-supervision: Continuous auto-diagnostic of hardware and software.

Ordering information

• Without test adapter: SPAU 140 C RS 488 001 -AA, -CA, -DA, -FA.
• With test adapter RTXP 18: SPAU 140 C RS 488 201 -AA, -CA, -DA, -FA.
• -AA: 50 Hz, 80-265 V ac/dc.
• -CA: 50 Hz, 18-80 V dc.
• -DA: 60 Hz, 80-265 V ac/dc.
• -FA: 60 Hz, 18-80 V dc.
• Accessories: SPA-ZC 21 MM connection modules, SPA-ZF MM 100 fibre-optic cables.

Installation & setup guidelines

• Mount the ABB SPAU 140 C in a standard 19-inch rack or panel.
• Connect the voltage inputs from both network sections to the relay.
• Select the rated frequency (50 Hz or 60 Hz) based on your application.
• Set the auxiliary voltage to match your system's control voltage.
• Configure the synchro-check and voltage-check parameters using the front panel.
• Use the test adapter RTXP 18 for easy testing and maintenance.
• Run the self-diagnostic test after installation to verify proper operation.

Package contents

• One ABB SPAU 140 C synchro-check relay (specify order code).
• Mounting hardware for panel installation.
• Connection terminal blocks (depending on order).
• Basic installation manual.

Shipping options

• We ship via FedEx, UPS, or DHL worldwide.
• Tracking and insurance included for every order.
• Express delivery typically arrives in 2-5 business days.

Frequently asked questions

• What is the main function of the ABB SPAU 140 C?
  The SPAU 140 C checks voltage, phase, and frequency conditions before connecting two power systems.
• Is this product still active?
  No, ABB discontinued this product in 2012. We offer it while stocks last.
• What is the difference between synchro-check and voltage-check?
  Synchro-check matches two live networks. Voltage-check connects a dead bus to a live section.
• Do I need the test adapter RTXP 18?
  We recommend the test adapter for easier testing and troubleshooting during commissioning.
• What accessories do I need?
  You need SPA-ZC 21 MM connection modules and SPA-ZF MM 100 fibre-optic cables for communication.
• How do I choose the correct order code?
  Select based on your rated frequency (50/60 Hz) and auxiliary voltage (80-265V ac/dc or 18-80V dc).