Siemens 3RW4028-1BB14

The Siemens 3RW4028-1BB14 model is in ample supply! It has excellent durability and can handle various industrial scenarios with ease. It is a versatile and reliable all-purpose tool.

Whole machine testing

Electrical performance and trip characteristic testing. As the core component of motor protection, the whole machine testing of Siemens 3RW4028-1BB14 primarily focuses on the accuracy of its electrical parameters. In the overload protection verification, the testing personnel will strictly verify the response accuracy of the built-in solid-state overload relay under a reference environment temperature of 40 degrees Celsius, ensuring that the motor is protected from thermal damage. In the phase loss and phase imbalance detection section, by simulating the operation of a power grid with phase loss, it is verified whether the soft starter can reliably trip within milliseconds, preventing the motor from burning out. At the same time, the startup characteristic test will comprehensively verify its voltage ramp startup and current limiting startup functions, ensuring that the startup current is effectively limited within 2 to 6 times the rated current range, reducing the impact on mechanical equipment.

Differential selling points

The 45mm ultra-narrow modular design that breaks through spatial limitations. In the field of control cabinet design and complete equipment manufacturing, the internal space of the cabinet is the manufacturing cost. Products in the same power range (11kW/400V) of soft starters on the market are often bulky. However, Siemens 3RW4028-1BB14 perfectly inherits the design essence of Siemens SIRIUS modularization, compressing the overall width of the entire machine to 45mm. This differentiated compact design enables engineers to layout more circuits in a single cabinet, significantly saving installation space, and effectively reducing the heat accumulation pressure inside the cabinet and the overall manufacturing cost.

Industry praise

Siemens 3RW4028-1BB14 Intuitive parameter setting, simple debugging and maintenance. For on-site engineers, the convenience of debugging directly relates to the delivery efficiency of the project. Senior on-site debugging engineers in the industry generally praise the humanized design of this soft starter The body only has three knobs for starting voltage, starting time, and current limiting, combined with clear LED status indicators, even without a manual, it can be quickly completed. Especially in pump and fan applications, its inherent anti-sudden stop function effectively avoids the water hammer effect, greatly extending the service life of pipelines and valves.

FAQ module

Q1 How much space should be reserved for the distribution cabinet when installing this device? What about heat dissipation?

A1 It's not a large size. Just install it on the 45mm rail. It saves a lot of space. Just remember to leave some gaps for heat dissipation up and down. Make sure the cabinet is well ventilated. Just don't cover it up.

Q2 Can the old Siemens or other brand circuit breakers in my factory be used with this one?

A2 Absolutely no problem! It can be seamlessly connected with our own SIRIUS contactors. It's the same for other brand circuit breakers. Just follow the regular wiring. There will be no obstacles for the renovation of old equipment.