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SE-MI » Production programme » Components of Driving Units » Electrical Devices » Explosion-proof Contactor Box

Explosion-proof Contactor Box

TYPE HA-dk 6 A

The contactor box contains a vacuum contactor as a replaceable module. The rated current on the outlet can be preset in the range from 2 to 100A. The outlet is equipped with the electronic over-current and short-circuit protection, monitoring of the protection conductor integrity, evaluation of the thermistors in the motor and the network insulation status monitoring before start-up and during operation.

Transformer Version: The box is equipped with the electronic over-current and short-circuit protection and the network insulation status monitoring before start-up and during operation.

General Description: The opening mechanism of the box is made of high-quality steel and it is equipped with mechanical blockades, the external surfaces are milled. Voltage rating setting is made with help of connector programing plugs.

More info [PDF; 0,06 MB] 

TYPE HA-dk 7 CS

The contactor-box contains vacuum or air contactors as individual replaceable modules for each outlet. The box can be equipped with maximum two independent conductor bars supplied through reverse isolators of rated current 400 / 600A (on request the conductor bar can also be equipped with a switch of 1200A). The box can be according to the customer´s requirement made in any configuration – independent outlets, reverse outlets, outlets for twospeed motors.

All outlets are equipped with semi-conductor over-current and short-circuit protection, monitoring also the loss of one phase. On the outlets there are furthermore safeguards monitoring the protecting conductor integrity, evaluating of the thermistors in the motors and monitoring the network insulation status before start-up and during operation. The status of the device as well as the measured values are displayed on the multi-functionary display.

It is possible to deliver various versions of the box equipment. For example, the box can be equipped with one contactor of 600A or with up to six contactors of 160A, eventually with a module for „soft-start”.

More info [PDF; 1,02 MB] 

TYPE HA-sk8

More info [PDF; 1,17 MB] 

TYPE HA-dk8.10

More info [PDF; 1,02 MB] 

TYPE HA-DK9

The contactor-box contains vacuum or air contactors as individual replaceable modules for each outlet. The box can be equipped with maximum three independent conductor bars supplied through reverse isolators of rated current 400 / 600A (on request the conductor bar can also be equipped with a switch of 1200A). The box can be according to the customer´s requirement made in any configuration – independent outlets, reverse outlets, outlets for twospeed motors.

All outlets are equipped with semi-conductor over-current and short-circuit protection, monitoring also the loss of one phase. On the outlets there are furthermore safeguards monitoring the protection conductor integrity, evaluating of the thermistors in the motors and monitoring the network insulation status before start-up and during operation. The status of the device as well as the measured values are displayed on the multi-functionary display.

The correct function of the contactor box is controlled with special alteration switches. It is performed in an intrinsic-safe version and the box run can be controlled with a microprocessor. On the customer´s request it is possible to place in a box a transformer for lighting supply, namely with power up to 6,3 kVA. The box can either be fixed on a solid base-plate or it can be suspended. The internal connections and the box equipment are executed according to the customer´s request. It is possible to install up to 8 contactor outlets (10 power outlets) in the box. It is possible to place a lighting transformer in the box, namely up to power of 8 kVA.

For heavy start-up, especially for long belt conveyors, the modules for “soft-start” are installed in the boxes.

More info [PDF; 0,9 MB] 

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