Procurement Zone

The Siemens SIRIUS 3UG4513-1BR20 analog phase sequence monitoring relay can monitor phase loss, phase sequence error, undervoltage (adjustable) and fixed 20% imbalance. The monitoring range is 3 x AC160~690V, the delay time is adjustable from 0 to 20 seconds, 2 sets of switching contacts, and the LED display shows the status at a glance.

The Siemens SIRIUS 3UG4512-2BR20 analog phase sequence monitoring relay is designed to monitor three-phase phase loss and phase sequence errors. It has a monitoring range of 3 x AC160~690V, a zero-delay design for rapid response, and two sets of switching contacts with spring terminals, making it suitable for basic protection applications in general motor circuits.

The Siemens SIRIUS 3UG4512-2AR20 analog phase sequence monitoring relay monitors three-phase phase loss and phase sequence errors. It has a monitoring range of 3 x AC160~690V, one set of switching contacts (SPDT) for output, spring-loaded terminals for quick wiring, and a narrow 22.5mm design suitable for distribution panels with limited space.

The Siemens SIRIUS 3UG4512-1BR20 analog phase sequence monitoring relay monitors three-phase phase loss and phase sequence errors. It has a monitoring range of 3 x AC160~690V, two sets of switching contacts with screw terminals, and robust and durable wiring. It is a common replacement and upgrade option for existing older models.

The Siemens SIRIUS 3UG4512-1AR20 analog phase sequence monitoring relay monitors three-phase phase loss and phase sequence errors, with a monitoring range of 3 x AC160~690V. It features an automatic reset function, a set of switching contacts with screw terminals, and can automatically resume operation after the abnormality is cleared.

The Siemens SIRIUS 3UG4511-2AP20 analog phase sequence monitoring relay is designed to monitor the correctness of the three-phase phase sequence. It has a monitoring range of 3 x AC320~500V, does not include phase loss detection, features an automatic reset design, one set of switching contacts with spring terminals, and a 22.5mm narrow design that can be installed in any orientation.

The Siemens SIRIUS 3UG4511-1BP20 phase sequence monitoring relay monitors a voltage range of 320~500VAC, outputs two sets of CO contacts (250VAC/3A), and is mounted on a 22.5mm wide DIN rail. It can detect phase loss, phase sequence errors, and voltage abnormalities, protecting three-phase motors and equipment.

The Siemens SIRIUS 3UG4511-1BN20 phase sequence monitoring relay monitors a voltage range of 160~260VAC, outputs two sets of CO contacts (250VAC/3A), and is mounted on a 22.5mm wide DIN rail. It can detect phase loss, phase sequence errors, and voltage abnormalities, protecting low-voltage three-phase equipment.

The Siemens SIRIUS 3UG4511-1AP20 phase sequence monitoring relay monitors a voltage range of 320~500VAC, outputs one set of CO contacts (250VAC/3A), has a response time of approximately 450ms, and can be mounted on a 22.5mm wide DIN rail. It is suitable for medium and high voltage motor circuit protection.

The Siemens SIRIUS 3UG4511-1AN20 phase sequence monitoring relay monitors a voltage range of 160~260VAC, outputs one set of CO contacts (250VAC/3A), is DIN rail mounted on a 22.5mm wide rail, and is compact and suitable for protection of small three-phase motor circuits.

The Siemens SIRIUS 3UG4501-1AW30 analog monitoring relay monitors liquid level high and low points through a resistance value of 2~200kΩ, supports a wide range of control power supply of 24~240VAC/DC, has one set of delayed switching contacts, can be externally reset, and is suitable for tank and water level control systems.

The Siemens SIRIUS 3TX7686-1A is a mechanical interlocking device used to lock two sets of 3TF68 or 3TD68 contactors of the same specification to prevent them from engaging simultaneously. It is commonly used in forward/reverse or interlocking control circuits to improve the safety of the distribution panel.

The Siemens SIRIUS 3TX7686-0A is a terminal protection cover assembly. Each set contains two covers and is suitable for the terminals of the 3UF1868-3F converter and the 3TF68 contactor. It can prevent accidental contact with live terminals and improve field operation safety.

The Siemens SIRIUS 3TX7681-1A is a mounting base accessory designed specifically for the 3TD68 series large contactors. It provides a stable mounting base and simplifies the fixing and wiring of contactors in the distribution panel. It is an original manufacturer-specified special part.

The Siemens SIRIUS 3TX7680-1A is a main circuit connection assembly (connection bar/connector assembly) designed specifically for the 3TD6804 contactor. It is used for main circuit wiring connections in contactor combination applications, manufactured in Germany, and complies with RoHS environmental regulations.