ABB SPAU140C numerical synchro-check relay_Xiamen XingRuiJia Import and Export CO,LTD

Home > Products

Model：ABB SPAU140C numerical synchro-check relay

Brand: ABB 2026-05-25
Price range (USD): 2000-4000
Country: Sweden
Parameter: Parameter：Specification
Product Type：Synchro-Check Relay
Rated Frequency：50/60 Hz
Frequency Range：45–65 Hz
Energizing Voltage：100 V / 110 V

Contact Me

Xiamen Xingruijia Import and Export Co., Ltd. has been specializing in the sales of industrial control equipment spare parts for 20 years. For more ABB models, please refer to the product list . If you need other brands or models, please contact us. We have a variety of brands and models in stock, and we can purchase difficult to order models for you. We look forward to your inquiry!!!

First hand source//affordable price//Spot inventory!

•Shipping Port: Xiamen

•Manager: Rhonda

•E-mail: sales7@saulplc.com

•Tel/WhatsApp/Wechat: + 86-15359273796

•Ship to you via Fedex/DHL/TNT/UPS/EMS

•Package: Original packing with cartons

==============================================================================================================================================

ABB SPAU140C

ABB SPAU140C is a numerical synchro-check relay designed for power system synchronization and voltage-check applications. It is mainly used in substations and industrial power networks to ensure that two electrical systems can be safely connected together.

Main Functions

Synchro-check function for verifying:
- Voltage magnitude
- Phase angle difference
- Frequency difference
Voltage-check function for connecting dead bus/live line systems
Two independent operating stages for separate circuit breakers
Continuous self-supervision and auto-diagnostics
SPA bus communication support for integration with ABB SPACOM systems

Key Technical Specifications

Parameter	Specification
Product Type	Synchro-Check Relay
Rated Frequency	50/60 Hz
Frequency Range	45–65 Hz
Energizing Voltage	100 V / 110 V
Control Voltage	18–265 V DC or 80–265 V AC
Auxiliary Supply	18–80 V DC or 80–265 V AC/DC
Power Consumption	Approx. 5–7 W
Communication	SPA serial bus
Origin	Sweden

Typical Applications

Generator synchronization
Busbar coupling
Substation automation
Power plant switchgear systems
Industrial electrical distribution networks

Features

High synchronization accuracy
Reliable breaker closing supervision
Continuous diagnostic monitoring
Suitable for both automatic and manual synchronization systems
Compatible with legacy ABB SPACOM protection systems

Status

The SPAU140C belongs to ABB’s older SPACOM relay family and has reportedly been discontinued since around 2012, though it is still widely available in surplus and spare-parts markets.

Photo Gallery