Welcome to APT Controls & Appliances Pvt. Ltd.
We are one of the leading manufacturer and exporter of water and geyser thermostats. 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 endeavor 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.
Quality of products made and supplied by the company is well appreciated by customers. The company has been awarded the ISO 9001: 2008 certification in recognition of its excellence in Quality Management System.
Thermostats
Stem Type Thermostats
Thermostat with L bracketDetails
Thermostat with Plain bracketDetails
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 mm²) wires | |
| Mounting | Clip for 35 mm DIN rail |
Details
Heaters
Panel Space Heaters / Enclosure Heaters
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.
Panel Space Heaters (End Fixing Type)
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 |
Details
Panel Space Heaters (Middle Fixing Type)
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 |
Details
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 |
Details
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 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.
Panel Space Heaters (End Fixing Type)
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 |
Details
Panel Space Heaters (Middle Fixing Type)
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 |
Details
PTC Enclosure Heater Dinrail Mountable
We manufacture heaters in different ratings and sizes for enclosures, panels, cabinets & switchboards.
Details
PTC Heater With Bracket
Details
Enclosure Heater MK IV
MK IV 250 Watts
Details
MK IV 400 & 500 Watts
Details
