What replaced Integral 18 and 32 DOL reversing starters – LD5, LB1 and LB6?

How can we help you today?

You can replace Integral with our current Tesys Ultra range, although it isn’t a direct replacement and in some applications all the functionalities might not be available. The main reason for this is the multi-Auxiliary blocks that were available with Integral, where now we have smaller auxiliary blocks for dedicated functions.

This FAQ only focus on the base units and the control units, for more complex arrangement you can contact us to discuss alternatives, or go to our online catalogue database - digicat.se.com - and click on "General Catalogue", followed by "Motor Starters and Load Management". There, you can find the catalogue section for Tesys Ultra.

Integral Replaced by Tesys Ultra

Integral 18 and 32 reversing DOL (old model) Tesys U reversing LU2B (new model)

The old Integral and the current range Tesys Ultra serve similar purposes but they are very different devices.

Integral - was very much "traditional" and conventional technology.

Tesys U - employs more modern and efficient structures and technology, therefore there is no compatibility or interchangeability between any of the parts.

To replace the simple motor starter components is easy. A basic Tesys Ultra Motor Starter comprises only 2 parts, the base unit (1) which contains the contactor, rated at up to 12A, 32A, or 38A (LU2B12, LU2B32 and LUB38 respectively) and a Control unit (2), which determines both the control voltage and the overload current range.

Integral to Tesys U

There are 3 levels of control unit (2) with varying levels of functionality, Standard (LUCA) Advanced (LUCB, LUCC and LUCD) and also a Magnetic only version (LUCL). We previous offered a model with some extra comms features (LUCM) but this is now obsolete. Comms is available using the Advanced control units.

When replacing Integral it is probably best to go with the Advanced unit (LUCB****) as this gives the optimum level of simplicity and cost combined with flexibility to add additional modules to replicate some of the more complex functions possible with Integral.

Check information, download datasheets and catalogues about the Tesys U and use the motor control configurator tool from our website. For Tesys U, select 'All in One' in the Adjust tab: https://www.se.com/uk/en/work/products/industrial-automation-control/tools/motor-control-configurator.jsp

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