• Adjustable Set Point Range:
    • Increasing: -30°F to +420°F, -34°C to +216°C
    • Decreasing: -39°F to +414°F, -39°C to +212°C
  • Deadband: Approximately
    • At Bottom of Range: +9°F to +19°F, +5°C to +11°C
    • At Top of Range: +3°F to +6°F, +2°C to +8°C
  • Probe Temperature (Maximum): +250°F to +500°F, +121°C to +260°C
  • Wetted Materials:
    • Temperature Probe: 300 Stainless Steel
    • O-Ring: Buna N
  • Relay: SPDT or DPDT 
  • UL, CSA
    • Explosion Proof - Class 1, Div/Zone 1, Groups A, B, C and D
  • CE Mark, Dual Seal
The above description encapsulates the entire product series. Specifications for individual configurations may vary depending on the selection chosen.
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646TE3
646TE3
$460.00
  • Celsius
    • Increasing 32 to 99
    • Decreasing 24 to 96
  • Fahrenheit
    • Increasing 90 to 210
    • Decreasing 75 to 205
  • Base Model

    646TE3
  • Process Connection

    1/2"-14 Male NPT
  • Output

    SPDT
  • Electrical Contacts

    Silver
  • Agency Approvals

    UL, CSA, CE, Dual Seal
646TEY1
646TEY1
$455.00
  • Celsius
    • Increasing -34 to 13
    • Decreasing 0 to 11
  • Fahrenheit
    • Increasing -30 to 55
    • Decreasing -39 to 52
  • Base Model

    646TE1
  • Process Connection

    1/2"-14 Male NPT
  • Output

    SPDT
  • Electrical Contacts

    Silver
  • Agency Approvals

    ATEX

Selected Configuration

Model #:

646TE3

Price:
$460.00 USD
Availability:
In Stock (15)
Min. Qty:
5 Items

Configuration

reset configuration

Agency Approvals

Available agency approvals listed below, ATEX/GOST is a non standard option.
  • ATEX
  • CE
  • CRN - Alberta
  • CRN - British Columbia
  • CRN - Manitoba
  • CRN - N.W. Territories
  • CRN - Saskatchewan
  • CSA
  • cUL
  • Dual Seal
  • EMC Directive
  • LVD
  • PED
  • RoHS
  • RTN
  • UL

NACE & NIST

  • NACE MR0175:2003

Set Point - Increasing

Set Point Ranges below describe the adjustable increasing range of the entire series, for specific ranges by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 646TE Stainless Steel Temperature Probe
Maximum
Probe
Temperature

Degrees F
Adjustable Set Point Range Deadband
Approximate
Model Number
& Wetted Parts
Increasing
Temperature

Degrees F
Decreasing
Temperature

Degrees F
At Bottom
of Range
Degrees F
At Top
of Range
Degrees F
Model
646TE*
Wetted
Parts
+250° -30° to +55° -39° to +52° +9° +3° TE1 300 Stainless Steel
Nickel Plated Steel
Buna N
(Ranges 1-3)
Silicone Rubber
(Ranges 4-5)
+300° +35° to +140° +21° to +135° +14° +5° TE2
+300° +90° to +210° +75° to +205° +15° +5° TE3
+500° +175° to +310° +159° to +305° +16° +5° TE4
+500° +275° to +420° +256° to +414° +19° +6° TE5
 
Operating & Ordering Data:
MODEL 646TE Stainless Steel Temperature Probe
Maximum
Probe
Temperature

Degrees C
Adjustable Set Point Range Deadband
Approximate
Model Number
& Wetted Parts
Increasing
Temperature

Degrees C
Decreasing
Temperature

Degrees C
At Bottom
of Range
Degrees C
At Top
of Range
Degrees C
Model
646TE*
Wetted
Parts
+121° -34° to +13° -39° to +11° +5° +2° TE1 300 Stainless Steel
Nickel Plated Steel
Buna N
(Ranges 1-3)
Silicone Rubber
(Ranges 4-5)
+149° +2° to +60° -6° to +57° +8° +3° TE2
+149° +32° to +99° +24° to +96° +8° +3° TE3
+260° +79° to +154° +71° to +152° +8° +2° TE4
+260° +135° to +216° +124° to +212° +11° +4° TE5
 
  • -34° to 216° C (-30° to 420° F)

Set Point - Decreasing

Set Point Ranges below describe the adjustable decreasing range of the entire series, for specific ranges by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 646TE Stainless Steel Temperature Probe
Maximum
Probe
Temperature

Degrees F
Adjustable Set Point Range Deadband
Approximate
Model Number
& Wetted Parts
Increasing
Temperature

Degrees F
Decreasing
Temperature

Degrees F
At Bottom
of Range
Degrees F
At Top
of Range
Degrees F
Model
646TE*
Wetted
Parts
+250° -30° to +55° -39° to +52° +9° +3° TE1 300 Stainless Steel
Nickel Plated Steel
Buna N
(Ranges 1-3)
Silicone Rubber
(Ranges 4-5)
+300° +35° to +140° +21° to +135° +14° +5° TE2
+300° +90° to +210° +75° to +205° +15° +5° TE3
+500° +175° to +310° +159° to +305° +16° +5° TE4
+500° +275° to +420° +256° to +414° +19° +6° TE5
 
Operating & Ordering Data:
MODEL 646TE Stainless Steel Temperature Probe
Maximum
Probe
Temperature

Degrees C
Adjustable Set Point Range Deadband
Approximate
Model Number
& Wetted Parts
Increasing
Temperature

Degrees C
Decreasing
Temperature

Degrees C
At Bottom
of Range
Degrees C
At Top
of Range
Degrees C
Model
646TE*
Wetted
Parts
+121° -34° to +13° -39° to +11° +5° +2° TE1 300 Stainless Steel
Nickel Plated Steel
Buna N
(Ranges 1-3)
Silicone Rubber
(Ranges 4-5)
+149° +2° to +60° -6° to +57° +8° +3° TE2
+149° +32° to +99° +24° to +96° +8° +3° TE3
+260° +79° to +154° +71° to +152° +8° +2° TE4
+260° +135° to +216° +124° to +212° +11° +4° TE5
 
  • -39° to 212° C (-38° to 414° F)

Adjustment Type

  • Field Adjustable

System Pressure

  • bar: 86
  • kPa: 8,618
  • psig: 1,250

Proof Pressure

  • bar: 103.4
  • kPa: 10,342
  • psig: 1,500

Operating Temperature

  • -40° to 86° C (-40° to 187° F)

Maximum Probe Temperature

Probe Temperature below describes the probe temperature range of the entire series, for specific values by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 646TE Stainless Steel Temperature Probe
Maximum
Probe
Temperature

Degrees F
Adjustable Set Point Range Deadband
Approximate
Model Number
& Wetted Parts
Increasing
Temperature

Degrees F
Decreasing
Temperature

Degrees F
At Bottom
of Range
Degrees F
At Top
of Range
Degrees F
Model
646TE*
Wetted
Parts
+250° -30° to +55° -39° to +52° +9° +3° TE1 300 Stainless Steel
Nickel Plated Steel
Buna N
(Ranges 1-3)
Silicone Rubber
(Ranges 4-5)
+300° +35° to +140° +21° to +135° +14° +5° TE2
+300° +90° to +210° +75° to +205° +15° +5° TE3
+500° +175° to +310° +159° to +305° +16° +5° TE4
+500° +275° to +420° +256° to +414° +19° +6° TE5
 
Operating & Ordering Data:
MODEL 646TE Stainless Steel Temperature Probe
Maximum
Probe
Temperature

Degrees C
Adjustable Set Point Range Deadband
Approximate
Model Number
& Wetted Parts
Increasing
Temperature

Degrees C
Decreasing
Temperature

Degrees C
At Bottom
of Range
Degrees C
At Top
of Range
Degrees C
Model
646TE*
Wetted
Parts
+121° -34° to +13° -39° to +11° +5° +2° TE1 300 Stainless Steel
Nickel Plated Steel
Buna N
(Ranges 1-3)
Silicone Rubber
(Ranges 4-5)
+149° +2° to +60° -6° to +57° +8° +3° TE2
+149° +32° to +99° +24° to +96° +8° +3° TE3
+260° +79° to +154° +71° to +152° +8° +2° TE4
+260° +135° to +216° +124° to +212° +11° +4° TE5
 
  • 121° to 260° C (250° to 500° F)

Deadband, Approximate - Bottom of Range

Deadband below describes the approximate deadband range of the entire series, for specific values by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 646TE Stainless Steel Temperature Probe
Maximum
Probe
Temperature

Degrees F
Adjustable Set Point Range Deadband
Approximate
Model Number
& Wetted Parts
Increasing
Temperature

Degrees F
Decreasing
Temperature

Degrees F
At Bottom
of Range
Degrees F
At Top
of Range
Degrees F
Model
646TE*
Wetted
Parts
+250° -30° to +55° -39° to +52° +9° +3° TE1 300 Stainless Steel
Nickel Plated Steel
Buna N
(Ranges 1-3)
Silicone Rubber
(Ranges 4-5)
+300° +35° to +140° +21° to +135° +14° +5° TE2
+300° +90° to +210° +75° to +205° +15° +5° TE3
+500° +175° to +310° +159° to +305° +16° +5° TE4
+500° +275° to +420° +256° to +414° +19° +6° TE5
 
Operating & Ordering Data:
MODEL 646TE Stainless Steel Temperature Probe
Maximum
Probe
Temperature

Degrees C
Adjustable Set Point Range Deadband
Approximate
Model Number
& Wetted Parts
Increasing
Temperature

Degrees C
Decreasing
Temperature

Degrees C
At Bottom
of Range
Degrees C
At Top
of Range
Degrees C
Model
646TE*
Wetted
Parts
+121° -34° to +13° -39° to +11° +5° +2° TE1 300 Stainless Steel
Nickel Plated Steel
Buna N
(Ranges 1-3)
Silicone Rubber
(Ranges 4-5)
+149° +2° to +60° -6° to +57° +8° +3° TE2
+149° +32° to +99° +24° to +96° +8° +3° TE3
+260° +79° to +154° +71° to +152° +8° +2° TE4
+260° +135° to +216° +124° to +212° +11° +4° TE5
 
  • -13° to -7° C (9° to 19° F)
  • 5° to 11° C (41° to 52° F)

Deadband, Approximate - Top of Range

Deadband below describes the approximate deadband range of the entire series, for specific values by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 646TE Stainless Steel Temperature Probe
Maximum
Probe
Temperature

Degrees F
Adjustable Set Point Range Deadband
Approximate
Model Number
& Wetted Parts
Increasing
Temperature

Degrees F
Decreasing
Temperature

Degrees F
At Bottom
of Range
Degrees F
At Top
of Range
Degrees F
Model
646TE*
Wetted
Parts
+250° -30° to +55° -39° to +52° +9° +3° TE1 300 Stainless Steel
Nickel Plated Steel
Buna N
(Ranges 1-3)
Silicone Rubber
(Ranges 4-5)
+300° +35° to +140° +21° to +135° +14° +5° TE2
+300° +90° to +210° +75° to +205° +15° +5° TE3
+500° +175° to +310° +159° to +305° +16° +5° TE4
+500° +275° to +420° +256° to +414° +19° +6° TE5
 
Operating & Ordering Data:
MODEL 646TE Stainless Steel Temperature Probe
Maximum
Probe
Temperature

Degrees C
Adjustable Set Point Range Deadband
Approximate
Model Number
& Wetted Parts
Increasing
Temperature

Degrees C
Decreasing
Temperature

Degrees C
At Bottom
of Range
Degrees C
At Top
of Range
Degrees C
Model
646TE*
Wetted
Parts
+121° -34° to +13° -39° to +11° +5° +2° TE1 300 Stainless Steel
Nickel Plated Steel
Buna N
(Ranges 1-3)
Silicone Rubber
(Ranges 4-5)
+149° +2° to +60° -6° to +57° +8° +3° TE2
+149° +32° to +99° +24° to +96° +8° +3° TE3
+260° +79° to +154° +71° to +152° +8° +2° TE4
+260° +135° to +216° +124° to +212° +11° +4° TE5
 
  • -16° to -14° C (3° to 6° F)
  • 2° to 8° C (36° to 46° F)

Process Connection - Threaded

  • 1/2" Male NPT

Environmental Protection

  • NEMA 4, 7, 9, 13 / IP54, 66

Switch Type

  • DPDT
  • SPDT

Electrical Assembly

  • Hermetic Seal

Electrical Rating

Electrical Characteristics:
VOLTS AMPERES
SPDT DPDT "M" Dbl Brk"X"
Resistive Resistive Resistive
Silver Contacts
125 AC - 50/60 Hz 15 5 15
250 AC - 50/60 Hz 15 5 15
480 AC - 50/60 Hz 15 - 15
28 DC     2 5 -
125 DC     0.5 0.5 1
250 AC - 50/60 Hz 0.2 - 0.5
Gold Contacts
125 AC - 50/60 Hz  1 Max 1 Max -
30 DC     1 Max 1 Max -
SPDT (Single Pole Double Throw)
A SPDT switching element has one normally open, one normally closed and one common terminal. Three terminals mean that the switch can be wired with the circuit either normally open (N/O) or normally closed (N/C).

DPDT (Double Pole Double Throw)
A DPDT switching element has six electrical terminals. In simple terms, it is two SPDT switching elements operating simultaneously at the same settings. This type of switch can handle two independent circuits without using a relay.

Normally Closed Switching Element
A Normally Closed (NC) Switching Element is one in which the terminals are wired so that current can flow through the switching element until the plunger pin is actuated to open the circuit.

  • 1 A at 125 Vac, 50/60 Hz
  • 15 A at 125/250/480 Vac Resistive 0.5 A at 125 DC, 0.2 A at 250 DC
  • 5 A at 125/250 Vac Resistive, 5 A at 28 DC, 0.5 A at 125 DC

Electrical - Free Leads

Available selections listed below, free leads are standard.
  • 18" (45 cm) Free Leads
  • 18" (45 cm) Teflon Leadwire

Electrical Contacts

Available electrical contact materials listed below, silver is standard.
  • Gold
  • Silver

Electrical Connectors

Available selections listed below, 1/2"-14 MNPT is standard.
  • 1/2" Male NPT

Electrical Certification

  • ±5%
  • c-UL, U.L./CSA Explosion Proof: Div. 1, 2 hermetically sealed electrical assembly P/N 17-51 (17-73 for M model option), listed by both Underwriter’s Laboratories, Inc. (File No. E32961) and Canadian Standard Association (CSA)Testing Laboratories (File No. LR22921) for hazardous locations, Class 1, Groups A, B, C, and D; Class 2 Groups E, F, and G.

Enclosure/Body Material

  • Aluminum

O-Ring Material

  • None

Probe Material

  • Stainless Steel with Nickel Plated Steel
Thermowell

Thermowell

CCS Thermowell