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DUELCO公司是欧洲主要生产传感器,继电器的生产厂家,产品广泛用于港口,码头,钢厂,电厂,化工,石油,煤炭行业。
丹麦DUELCO传感器，DUELCO继电器主要型号有：TST-3、SSN-2003、NST-2004、EU-10、EU-2001、HR-20、SSO-10、DSM-M、DSM-221。

SSO-10 Standstill Monitoring Relay
Designed for 1-and 3-phase motors
Can be used in applications with frequency converters
Microprocessor controlled
2 NO safety outputs and 1 NC signal contact
10 A contact load
Status indication with LEDs
Detachable terminals
(By 2-channel operation of 23-24,33-34,41-42)
Category 3/4, EN 954-1