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CON Contactors

CON-32 Contactor

Allows a thermostat or other switching device to switch loads greater than its normal capacity
Can be used for either single phase or three phase loads
Optional enclosure available

CON-32 Contactor in ENCL-D Enclosure

CON-50 Contactor

CON-80 Contactor

Range

Model	Poles	Amps per Pole	Max kW per Pole @230V
CON-32	3	32	7
CON-50	3	50	11.5
CON-80	3	80	18
ENCL-D	Enclosure for CON-32 and CON-50

Selection

A contactor will allow a switching device such as a thermostat, timer or movement sensor to control a heater with a load greater than the devices switching capacity. As all the contactors in the BN Thermic range are ‘three-pole’ they will also enable a single pole device to switch a three phase load.

Using the following table, it is easy to select the contactor capable of switch any given load.

Model	Poles	Amps per Pole	Max kW per Pole @230V
CON-32	3	32	7
CON-50	3	50	11.5
CON-80	3	80	18
ENCL-D	Enclosure for CON-32 and CON-50

CAUTION

When selecting a contactor to switch halogen heaters, the contactor should be over-rated by 100%

When working with voltages other than 230V 1ph or 400V 3ph & N, please consult BN Thermic

Examples

Using a 10A thermostat to switch a 4kW 230V 1ph underfloor heating mat

The 4kW mat will draw a nominal 17A. As the mat is operating on a single phase, the load will be switched using a single pole. Therefore we can select the CON-32 which is capable of switching up to 32 A per pole.

Using a 10A thermostat to switch a 30kW 4000V 3ph & N heating system.

The 30kW heating system will draw a nominal 44A per phase. As the system is operating on all three phases, the load will be switched using all three poles. We would therefore select the CON-50 which is capable of switching up to 50A per phase.

CON

Downloads

Instructions and specification sheets are available for BN Thermic’s entire range of products, including CON Contactors.

CON

Product Images

CON-32 Contactor

CON-32 Contactor in ENCL-D Enclosure

CON-50 Contactor

CON-80 Contactor

ENQUIRY FORM

Please provide as much information as possible

Company name

Contact name *

Telephone *

Email *

Company type *

Please choose the appropriate form

Industrial and Commercial Heating Enquiry Form

Please provide as much information as possible

Building type (e.g. warehouse)

Geographical area (e.g. Scottish Highlands)

Activities (e.g. Scouts meeting with ball games played)

Dimensions

Length

Width

Height

Glazing

Glazed area (internal walls)

Glazed area (external walls)

Glazing type

Required temperature

°C

Minimum temperature of adjoining building (if applicable)

°C

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Underfloor Heating Enquiry Form

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Room Type (e.g. kitchen)

Subfloor (e.g. floorboards)

Final floor surface (e.g. tiles)

Please select a room shape (if applicable)

Dimensions

Any other factors that you would like us to consider

Pipe freeze Protection Enquiry Form

Please provide as much information as possible

Building Type (for example domestic dwelling or factory)

Where?

Pipe material

Pipe diameter

Thickness of insulation (to be applied after heating cable installed)

Pipe Length (for more complicated pipe configurations please attach dimensioned sketch)

Any other factors that you would like us to consider