1SBH901074R8531_ABB_PRODUCT_吉林易择科技技术发展有限公司

Technical Parameters Parameter Specification Manufacturer ABB Part Number 1SBH901074R8531 Series / Type NX31E-85 Auxiliary Contactor / Contactor Relay Product Type Auxiliary contactor / contactor relay Number of Poles 4 poles (usually configured as multiple auxiliary contacts) Auxiliary Contact Configuration Typically 3 NO (Normally Open) + 1 NC (Normally Closed) Rated Control Circuit Voltage (Uc) 380–400 V AC at 50 Hz / 400–415 V AC at 60 Hz Rated Insulation Voltage Up to ~690 V AC Conventional Free-air Thermal Current (Ith) ~16 A Rated Operational Current AC-15 Several amperes depending on voltage level in control application Short-time Withstand Current (Icw) ~140 A for 0.1 s Operating Frequency 50 / 60 Hz Control Circuit Protection Typically includes built-in surge suppression features Terminal Type Screw terminals Mechanical Switching Frequency Up to several thousand cycles per hour Mounting Panel or DIN-rail mounting in control panel systems Ambient Temperature Range Typical industrial operating range Typical Application Switching/status signaling in control circuits, auxiliary control of contactors and relays

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DESCRIBE

The ABB 1SBH901074R8531 is a compact auxiliary contactor / contactor relay from ABB’s NX31E series. It is designed for switching control and auxiliary circuits in industrial electrical control systems. This block-style contactor relay features multiple auxiliary contacts and is suitable for use in automation panels, motor control centers, and auxiliary switching applications. It is typically used where a small, reliable device is required to control or signal other devices such as main contactors, relays, and indicators with a specified AC control voltage range.

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