Who we are

Established in the year 1991, we APT Controls & Appliances Pvt. LTd. are one of the renowned manufacturers and exporters of thermostats ....

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Our Products

We are one of the leading manufacturer and exporter of various types of thermostats and panel space heaters used in varied industrial

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Quick Gallery

We are into the manufacturing of the best quality thermostats and enclosures as per requirements which can be viewed here...

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Welcome to APT Controls & Appliances Pvt. Ltd.

We are one of the leading manufacture and exporter of various types of thermostats and panel space heaters used in varied industrial applications. The company has earned good reputation for quality, timely delivery and service wherever required. First product of the company, Stem Thermostat, 20 A, 230 V, 25 - 75°C, is �ISI� marked since 1994 (License no. CM/L � 7059270 from Bureau of India Standards).

We endeavour to provide better customer satisfaction through quality products and timely delivery. Our excellence in the industry enable our clients to excel in their field of operation. Over the years, we have been catering to the requirement of a large clients base. Besides the domestic market, we also export our range of products to various countries. Some of our MNC clients are : ABB Ltd. , L & T Ltd., Merloni Thermo Sani Tari (India) Ltd, Schneider Electric India Ltd., Siemens Ltd.

Water Heater Thermostat

We manufacture high quality precision heating thermostats with temperature variable knob which are used in geysers and water heaters.

Technical Characteristics

Stem length 175 mm, 275 mm
Temperature range of operation 25-75 �C (other ranges on request)
Tolerance on operating temperature Within 4�C or Customer defined
Temperature Differential Within 10�C
Insulation Level 1 KV for 1min
Contact Rating 20 A, 230V resistive
Contact configuration Opening on temperature rise

PTC Heater With Bracket

Enclosure Heater MK IV

MK IV 250 Watts

MK IV 400 & 500 Watts

Stem Type Thermostats

Thermostat with L bracket Thermostat with Plain bracket

We manufacture high quality precision heating thermostats with temperature variable knob and having different mounting options which are used in switchboards, cabinets, panels and enclosures.

Technical Characteristics

Stem length 175 mm
Temperature range of operation 25-75 �C (other ranges on request)
Tolerance on operating temperature Within 4 �C or Customer defined
Temperature operating point of safety Customer defined
Temperature Differential Within 10 �C; 2 pole safety has to be manually reset
Insulation Level 1 KV for 1 min
Contact Rating 20 A, 230V resistive
Contact configuration Opening on temperature rise

Bimetallic Thermostats

We manufacture high quality din rail mountable precision heating / cooling thermostats with temperature variable knob which are used in switchboards, cabinets, panels and enclosures.

Technical Characteristics

Thermostat Type Heating Thermostat Cooling Thermostat
Contact Configuration Contacts opening on temperature rise Contacts closing on temperature rise
Product Identification Red coloured knob with light grey body Blue coloured knob with light grey body
Sensor Element Thermostatic Bimetal
Temperature Range 0 to 60 �C or 30 to 140 �F
Switching Differential Less than 6 K at a temperature change of >1 K / min
Service life 100,000 cycles
Switching capacity 10 A resistive @ 250 V AC, 15 A resistive @ 120 V AC
Terminals Suitable for AWG 14 ( 2.5 mm�) wires
Mounting Clip for 35 mm DIN rail

Panel Space Heaters / Enclosure Heaters MK II A

We manufacture heaters in different ratings and sizes for enclosures, panels, cabinets & switchboards.

The heaters have the following characteristics:

� Insulation level: 2 KV for 1 min.
� Standard power tolerance : � 3%

Construction:

� Body made of anodized heat sink grade extruded aluminium.
� High quality Kanthal resistance material is used as heating element.
� Mica is used for optimum insulation.
� Resistance element and insulation are held tight in between extruded aluminium body and squeezed.

Advantages:

� Close tolerance of electrical rating.
� Quick and uniform heating.
� Fast dissipation of heat into air.
� Withstands much higher degree of mechanical shock and vibration.
� Very good insulation resistance even in extreme humid conditions.
� Elevated body for easy passage of heat directly to air, without heating panel body.

MK II A End Fixing

The heater is available in following lengths and electrical ratings.

Specification

Heater Length (mm) Fixing Distance (mm) Wattage (at 24, 48,110, 120, 220, 230, 240 or 250 Volts)
210 � 1 190 � 6 50, 60 & 80
240 � 1 220 � 6 30, 40, 100 & 120
270 � 1 250 � 6 150
300 � 1 280 � 6 180 & 200
330 � 1 310 � 6 Upto 250

MK II A Middle Fixing

The heater is available in following lengths and electrical ratings.

Specification

Heater Length (mm) Wattage (at 24, 48,110, 120, 220, 230, 240 or 250 Volts)
150 � 1 50, 60 & 80
180 � 1 30, 40, 100 & 120
210 � 1 150
240 � 1 180 & 200

Panel Space / Enclosure Heaters with perforated cover MK II B

We manufacture heaters in different ratings and sizes for enclosures, panels, cabinets & switchboards.

The heaters have the following characteristics:

� Insulation level: 2 KV for 1 min.
� Standard power tolerance : � 3%

Construction:

� Body made of anodized heat sink grade extruded aluminium.
� High quality Kanthal resistance material is used as heating element.
� Mica is used for optimum insulation.
� Resistance element and insulation are held tight in between extruded aluminium parts and squeezed.
� Protective Perforated cover with high quality CED coating.

Advantages:

� Close tolerance of electrical rating.
� Quick and uniform heating.
� Fast dissipation of heat into air.
� Withstands much higher degree of mechanical shock and vibration.
� Very good insulation resistance even in extreme humid conditions.
� Elevated body for easy passage of heat directly to air, without heating panel body.

MK II B End Fixing

The heater is available in following lengths and electrical ratings.

Specification

Heater Length (mm) Fixing Distance (mm) Wattage (at 24, 48,110, 120, 220, 230, 240 or 250 Volts)
210 � 1 190 � 6 50, 60 & 80
240 � 1 220 � 6 30, 40, 100 & 120
270 � 1 250 � 6 150
300 � 1 280 � 6 180 & 200
330 � 1 310 � 6 Upto 250

MK II B Middle Fixing

The heater is available in following lengths and electrical ratings.

Specification

Heater Length (mm) Wattage (at 24, 48,110, 120, 220, 230, 240 or 250 Volts)
150 � 1 50, 60 & 80
180 � 1 30, 40, 100 & 120
210 � 1 150
240 � 1 180 & 200

Panel Space / Enclosure Heaters with perforated cover

We manufacture heaters in different ratings and sizes for enclosures, panels, cabinets & switchboards.

The heaters have the following characteristics:

� Insulation level: 2 KV for 1 min.
� Standard power tolerance : � 3%

Construction:

� Body made of anodized heat sink grade extruded aluminium.
� High quality Kanthal resistance material is used as heating element.
� Mica is used for optimum insulation.
� Resistance element and insulation are held tight in between extruded aluminium body and squeezed.
� Protective Perforated cover with high quality CED coating.

Advantages:

� Close tolerance of electrical rating.
� Quick and uniform heating.
� Fast dissipation of heat into air.
� Withstands much higher degree of mechanical shock and vibration.
� Very good insulation resistance even in extreme humid conditions.
� Elevated body for easy passage of heat directly to air, without heating panel body.

The heater is available in following lengths and electrical ratings.

Heater Length (mm) Power Cord Length Wattage (at 24, 48,110, 120, 220, 230, 240 or 250 Volts)
248 � 2 From 0.3 mtr to 3 mtrs 30, 40, 50, 60, 80 & 100

PTC Enclosure Heater Dinrail Mountable

We manufacture heaters in different ratings and sizes for enclosures, panels, cabinets & switchboards.