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Massachusetts, 01923-2096
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HOTWATT PRODUCTS MADE IN USA

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Temperature Controlling Devices   In Stock

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Features
Magnetic Contactors are used to handle loads which exceed power handling capabilities of line voltage thermostats. Heavy duty copper contacts carry heavy duty currents at line voltages.  Holding coils are rated for line voltage but can be furnished for other voltages when specified.


Snap-Action Thermostats
   Bulb and Capillary

snap action thermostat

Features

  • Liquid filled bulbs and capillary, non-indicating, adjustable range thermostat

  • 72" capillary length

  • Panel Mount

  • Rating - 20 AMP at 120V or 240V

  • Temperature Range: 32F (0C) - 572F (300C)

  • 2 1/2 % Differential

Catalog Number: AC602021HOT1

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SURFACE MOUNT THERMOSTAT

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Catalog Number Range    Approx. F/Full Turn Adj. Screw
30000-0 50 to 300F 250F
30000-48 85  to 250F 175F
30002-0 50  to 600F 575F

SURFACE MOUNT THERMOSTAT

 

 

 

 

 

Features

  • Small size: 2" x 1/2" x 5/8"

  • Economical

  • Sensitive and accurate

  • Fast response

  • Adjustable through temperature range with stop tab to prevent setting in excess of limits

  • Stainless steel shell

  • Mounting bracket included

  • Contacts open on temperature rise

  • 10 amps @ 120 VAC, 5 amps @ 240 VAC



CARTRIDGE THERMOSTAT

Cartridge Thermostat

Catalog Number Sheath Material Range Approx. F/Full
Turn Adj. Screw
17000-0 Brass -100 to 400F 90F
17002-0 St. Steel -100 to 600F 110F

Cartridge Thermostat

 

 

 

 

 



Features

  • Fast response

  • Extreme sensitivity of 0.1F

  • Vibration resistance

  • Adjustable through temperature range with optional locking device

  • Close control

  • 10 amps @ 120 VAC, 5 amps @ 240 VAC

  • Locating pin prevents unit from turning when adjusting temperature (pin is removable)


HEX HEAD

hex head

Catalog Number Shell and Head Range
17100-0 5/8" x 4 9/32"
All Brass
-100 to 400F
17102-0 St. St. Shell
Brass Head
-100 to 600F

Hex Head

 

 

 

 

 

 

 


FLANGE HEAD

flanged head

Catalog Number Shell and Head Range
17300-0 5/8" x 4 9/32"
All Brass
-100 to 400F
17302-0 St. St. Shell
Brass Head
-100 to 600F

 

flanged head

 

 

 

 

 

 

 

 

 


COUPLING HEAD

coupling head

Catalog Number Shell and Head Range
18000-0 5/8" x 4 21/32"
All Brass
-100 to 400F
18002-0 St. St. Shell
Brass Head
-100 to 600F

Coupling Head

 

 

 

 

 



Series 100, Sub-Panel-Thermocouple Temperature Controller

series100

Description
The Series 100 controller was designed for general purpose commercial and industrial temperature regulating applications.The latest solid state technology and an innovative modular packaging concept has produced a uniquely flexible family of controllers. Low cost, a choice of many standard features and fast delivery make this series of controllers equally attractive to both the OEM and the end users.

Features

  • 120/240 VAC power input

  • Power and load lamps

  • Adjustable span and offset

  • Adjustable bandwidth or hysteresis

  • Process and setpoint display capability

  • Triac output

  • Proportioning

  • 24 V to drive solid state relay

  • Designed to UL and CSA standards

Specifications

  • Power Input:  115/230VAC10%, 50/60Hz (field selectable); 24VAC10% optional

  • Sensor:  Thermocouple, type J

  • Setpoint Range:  0F to 1000F

  • Control Modes:  Proportioning with adjustable Bandwidth (1C to 10C) and cycle rate
    of 2 sec for Triac or 10 sec for Relay outputs

  • Setpoint Adjustment: Local Potentiometer

  • Control Accuracy:  Typically better than 0.5% of range

  • Control Stability:  Typically better than 1C with 10C change in ambient temperature
    or 10% change in line voltage

  • Sensor Fault Protection:  Open sensor causes output to de-energize (Thermocouple)

  • Operating Ambient Temperature: 0C to 55C (32F to 130F)

Specifications

 

 

 

 

 

 

 

 

 

 

 

How to Order
Specify catalog numbers as follows:
     - 10 Amp Triac        Cat. No. AC100 - 2A040 - JT03
     - 28 VDC output     Cat. No. AC100 - 2A090 - JT03
        to drive SSR


Series 120R, Panel Mounting,
Solid State Temperature Controller

series 120R

Description
The Series 120R Controller is an economical alternative to the fluid filled (bulb and capillary) type thermostat for any application which could benefit from the improved performance and reliability of an electronic temperature control.  Its compact, completely enclosed construction with industry standard mounting, integral setpoint pot, high current output capability and wide variety of sensor configurations, make this controller an ideal choice to replace mechanical thermostats in  many industrial and commercial applications.

Features

  • 115/230 VAC power inputs

  • UL Class 2 low voltage sensor circuit

  • Completely enclosed design

  • UL Recognized (File No. E105669)

  • 24 Volts to drive SSR

Advantages Over Bulb & Cap Thermostat

  • Faster Response

  • Better Accuracy and Sensitivity

Specifications

  • Power Input:  115/230VAC 15%, 50/60 Hz (field selectable)

  • Control Mode:  On-Off with 2F hysteresis typical

  • Setpoint Range:  0 - 500F

  • Setpoint Accuracy:  typically better than 1% of span

  • Setpoint Stability:  Typically better than 1F over allowable operating ambient temperature or with 10% line voltage variation

  • Sensor:  Type J Thermocouple

  • Sensor Fault Protection:  Open or shorted sensor causes output to de-energize

  • Operating Ambient Temperature:  0 to 70C (32 to 158F)

Specifications

 

 

 

 

 

 

 

How to Order

Specify catalog number as follows:  AC120R-D38-JT02

 

Digital Indicating Temperature Controller
Model 16A 2123, Mini 1/16 DIN Thermocouple Sensing

Specifications

Model 16A 2123

Selectable Inputs: Thermocouple, RTD, DC Voltage, or DC Current selectable
Input Impedance: Thermocouple = 3 megohms minimum.
Current = 10 ohms
RTD current = 200uA
Voltage = 5000ohms



  Specifications

 

 

 

 

 

 

Specifications

 

 

 

 

 

 

 

Sensor Break Protection:  User determines control output to protect system after customer set time.
Display: Two 4 digit, 7 segment 0.30" high LEDs
Control Action:  Reverse (usually heating),  Direct (usually cooling) selectable
Proportional Band:  1 to 9999 F, C, or counts
Reset Time (Integral):  Off or 0.1 to 99.9 minutes
Rate Time (Derivative):  Off or 0.01 to 99.9 minutes
Cycle Rate:  1 to 80 seconds
On-Off Differential:  Adjustable 1 F, 1 C, or 1 count to full scale in 1 F, 1 C, or 1 count steps
Alarm On-Off Differential:  1 F, 1 C, or 1 count
Accuracy:  0.25% of span, 1 least significant digit
Supply Voltage:  100 to 240 VAC, nominal., +10-15%, 50 to 400 Hz. Single phase; 132 to 240 VDC, nominal., +10-20%.
Power Consumption:  5VA maximum
Operating Temperature:  -10 to +55 C (+14 to 131 F)
Storage Temperature:  -40 to +80 C (-40 to 176 F)
Control Output Ratings:
     Relay: 
SPDT, 3A @ 240 VAC resistive; 1.5 A @ 240 VAC inductive;
                  Pilot Duty Rating: 250 VA 2 A @ 120 VAC or 1 A @ 240 VAC
     Alarm Relay:  SPST, 3 A @ 240 VAC resistive;
                  1.5 A @ 240 VAC inductive; Pilot Duty Rating: 240
                  VA, 2 A @ 120 VAC or 1A @ 240 VAC
     Switched Voltage (isolated):  15 VDC @ 20 mA
Panel Cutout:  45 mm x 45mm (1.775" x 1.775")
Depth Behind Mounting Surface:  115.3mm (4.54")
Weight:  227 g (8 oz)
Front Panel Rating:  Type 4X, (IP65)

How To Order

To Order, specify part number

            Model  16 A             2                      1                       2                       3
                                           |                        |                       |                      |
                                         Features         Alarm             Output A           Output B
                                
      2 = Standard    1 = Yes            2 = 15VDC         3 = Relay
                                                      
                               

SOLID STATE RELAYS

solidstate relays

How To Order   -  Specify Catalog Number per table below

Line Volts

Max. Load Current

Catalog Number

24-330 VAC

25 Amps

AC-D1225

Features

  • 3-32 VDC Input

  • 600 volt blocking voltage

  • 4000 volt isolation

  • Zero voltage turn-on

  • Built-in snubber

  • 100% tested at rated current

  • High surge capability

  • U.L. recognized

  • C.S.A. certified

specifications

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

THERMOCOUPLE PROBES

Features

  • Thermocouples are precise temperature-sensing devices manufactured of the highest grade materials to provide maximum performance and reliability.

  • Tip Style:  Closed end-grounded.

  • Probe size and material:  .187" dia., 316 stainless steel.

  • Lead wire:  20 gage fiberglass insulated.  Standard commercial tolerances of 3/4%

  • Thermocouple material and Temperature Range:  Iron/Constantan-Type J, 0-1200F.

  • ISA color coded:  Iron - White     Constantan - Red with white tracer


3/16" Dia. Cartridge Type


3/16" Dia. Cartridge Type
TEMP
RANGE
0 F to 1200 F
CATALOG NO. ACHT-111206-001
ISA TYPE J

For compression fittings, consult factory.


Coupling Head Type


Coupling Head Type
Temp
Range
0 F to 1200 F

CATALOG NO.

ACHT-121202-001

ISA TYPE

J