Semiconductor contactors, softstart and brake devices are the cornerstones the Dold power electronics product line. All the device groups play an important role in Dold advanced motor controls. However, there are many other applications in particular for semiconductor contactors such as heating, lighting, etc.
Dold Semiconductor Relays / Contractors
Solid-state contactors proved to be good in industrial applications where high switching frequencies or high switching cycles are required. With their long service life and wearless switching, they solve switching and control tasks in specific applications in an extremely economic manner. Dold semi-conductor relay part numbers include:
- Dold PH9260
- Dold PH9270
- Dold PK9260
- Dold BF9250
- Dold BH9251
Dold Motor Break Relays
Dold motor brake relays are used with view to safety and efficiency. With braking currents up to 600 A, Dold braking units allow a reliable deceleration of asynchronous motors up to 160 kW. They can be used to bring your machines to a standstill within 10 seconds. Dold motor break relay part numbers include:
- Dold BI9034
- Dold BI9023
- Dold BI9028
- Dold BL9228
- Dold BA9034
- Dold BN9034
- Dold GB9034
- Dold AR9021
- Dold GA9031
- Dold AR9020
- Dold GA9030
- Dold AR9058
- Dold AR9057
- Dold BA9081
- Dold AI938
Dold Reversing Contactors
Dold solid-state reversing contactors are used where it is required to change the direction of rotation of three-phase motors, to start them softly and/or to monitor their load. Diverse diagnosis functions help to be kept always informed on the operational condition of the motor. Our devices save space, wiring expenses and cost. Depending on the model, Dold reversing contactors have either a reversing function (BH 9253) or a combination of reversing and current monitoring (BH 9255), or as in our new product (BI 9254) even a combination of reversing, softstart and active-power monitoring – all within a single device. There is a range of reversing contactors for motor power ratings up to 5.5 kW at three-phase 400 V available. Dold reversing contractor part numbers include:
- Dold BH9253
- Dold BH9255
- Dold BI9254
- Dold UG9256
Dold Speed Controller
Dold developed a range of 1- and 3-phase speed controllers for easy speed adjustment of fans and pumps. Their function principle is based on the phase-angle control by thyristors. Dold speed controller part numbers include:
- Dold IN9017
- Dold SX9240.01
- Dold SX9240.03
- Dold BA9055
- Dold AA9050
Dold Softstarters
DOLD softstarters ensure a soft and jerkless starting of your asynchronous motors. These Dold soft starters reduce wear and improves the service life of your motors and mechanical drive components.
Dold Multifunctional Motor Control Units
The Dold multifunctional devices from our PowerSwitch range combine motor control functions such as reversing and softstarting with monitoring functions, e.g. active-power or current monitoring. Also special-purpose devices such as solid-state contactors with integrated clock function for configuring large-scale reversing contactor circuits are available. Dold multi-functional motor control unit part numbers include:
- Dold BH9253
- Dold BH9255
- Dold BI9254
- Dold IP7854
- Dold UG9256
More Information on Dold Power Electronics
For specific information and pricing on Dold power electronics, please use our contact form or contact us via phone (908-234-2333).
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