Thermostats – Precision

Bi-metallic, snap-action, SPST thermostats, Hermetic/nonhermetic devices available. Enhanced reliability versions meet stringent requirements of military and aerospace industries for dielectric strength, moisture, resistance, vibration, and shock. Available in low profile, logic level, and automatic reset.

Commercial Thermostats

  2455RBv 2450R_2450RCH_2455R_2455RC_2467RC_2467RCH 2450R 2450R_2455R 2450R_fully_sealed
Series 2455RBV Overmolded Automatic Reset Thermostate 2450R/2450RCH/ 2455R/2455RC/ 2467RC/2467RCH “One-shot” 1/2 in Thermostate 2450R Annualar Ring Cap Automatic Reset Thermostate 2450R/2455R Protected Thermostate 2450R Fully Sealed Thermostate
Reset Type automatic none automatic automatic automatic
Amperage 15 A resistive max. 15 A resistive max. 15 A resistive, 12 Vdc 15 A resistive, 12 Vdc 15 A resistive, 12 Vdc
Housing Material ceramic or phenolic, epoxy overmold ceramic or phenolic, with or without epoxy-sealed cap and terminal phenolic, can be partially or totally sealed against water ingress brass, aluminium, stainless steel and epoxy phenolic housing, aluminium cap totally encapsulated in water-resistant epoxy
Operating Temperature Range -12 °C to 105 °C
[10 °F to 221 °F]

52 °C to 260 °C (ceramic)
[125 °F to 500 °F]

52 °C to 150 °C (phenolic)
[125 °F to 302 °F]

-10 °C to 55 °C
[14 °F to 131 °F]
15 °C to 130 °C
[59 °F to 266 °F]
-10 °C to 55 °C
[14 °F to 131 °F]
Environmental Exposure Range -18 °C to 121 °C
[0 °F to 250 °F]

-18 °C to 316 °C (ceramic)
[0 °F to 600 °F]

-18 °C to 150 °C (phenolic)
[0 °F to 302 °F]

-40 °C to 130 °C
[-40 °F to 266 °F]
-40 °C to 155 °C
[-40 °F to 311 °F]
-40 °C to 130 °C [-40 °F to 266 °F]
Life Cycle Cabability 300k at 12 Vdc, 10 A 300 K at 12 Vdc, 10 A
Low
Temperature Differential
down to 8 °C [46 °F] down to 8 °C [46 °F]

Hermetic Thermostats

  3001_3004 3100_3106 3150_3156 3600_3601 3000 3800
Series 3001/3004 Non-Hermetic Thermostate 3100/3106 Hermetic Thermostate 3150/3156 Low Silouhette Hermetic Thermostate 3600/3601 TO-5 Thermal Switches 3000 Custom-packaged Thermostate 3800 Industrial-grade Thermostats for Severe Duty Applications
Amperage 1 A to 3 A (3100, 3100U Series)
2 A to 4 A (3400 series)
0.5 A resistive (3106 Series)
7 A resistive (3100 Series)
0.5 A resistive (3156 Series)
7 A resistive (3150 Series)
1 A resistive 7 A resistive 7 A resistive
Housing
Material
phenolic base with metal closure steel housing with glass-to-metal
seal at terminal junktion
steel housing with glass-to-metal
seal at terminal junktion
nickel stainless steel or brass steel housing with glass-to-metal
seal at terminal junktion

Operating Temperature
Range

-18 °C to 168 °C
[0 °F to 335 °F]
-29 °C to 260 °C
[-20 °F to 500 °F]
(3100 Series)
-29 °C to 204 °C
[-20 °F to 400 °F]
(3106 Series)
-29 °C to 177 °C
[-20 °F to 350 °F]

40 °C to 120 °C
[104 °F to 248 °F]

-29 °C to 260 °C
[-20 °F to 500 °F]
-29 °C to 260 °C
[-20 °F to 500 °F]
Environmental Exposure
Range
-18 °C to 177 °C
[0 °F to 350 °F]
-62 °C to 288 °C
[-80 °F to 550 °F]
-62 °C to 260 °C
[-80 °F to 500 °F]
-50 °C to 150 °C
[-58 °F to 302 °F]
-62 °C to 288 °C
[-80 °F to 550 °F]
-62 °C to 260 °C
[-80 °F to 500 °F]
Dielectric Strength MIL-STD-202, Method 301
1500 Vac 60 Hz terminal to case
(2000 Vac 3400)
MIL-STD-202, Method 301
1250 Vac 60 Hz terminal to case
(3100, 3100U, 3106 Series)
1500 Vac 60 Hz terminal to case
(3100UX Series)
MIL-STD-202, Method 301
750 Vac 60 Hz terminal to case
(3150, 3156 Series)
1250 Vac 60 Hz terminal to case
(3150U, 3156U Series)
1500 Vac 60 Hz terminal to case
(3150UX Series)
500 Vac 60 Hz for one second
terminal to case
MIL-STD-202, Method 301
1250 Vac 60 Hz terminal to case
MIL-STD-202, Method 301
1250 Vac 60 Hz terminal to case
Insulation
Resistance
MIL-STD-202, Method 302,Cond. B,
500 MΩ, 500 Vdc applied
MIL-STD-202, Method 302, Cond. B
50 MΩ 500 Vdc applied
MIL-STD-202, Method 302,Cond. B,
500 MΩ, 500 Vdc applied
20 mΩ at 500 Vdc MIL-STD-202, Method 302,
50 MΩ to 500 MΩ
MIL-STD-202, Method 302,Cond. B,
50 MΩ terminal to case
Contact Resistance MIL-STD-202, Method 307 50 mΩ MIL-STD-202, Method 307
25 mΩ (3106 Series)
50 mΩ (3100 Series)
MIL-STD-202, Method 307
25 mΩ (3156 Series)
50 mΩ (3150 Series)
60 mΩ MIL-STD-202, Method 307
50 mΩ max.
MIL-STD-202, Method 307
50 mΩ max.
Hermetic Seal MIL-STD-202, Method 112,Cond. A,
1×10-5 atm cc/s
MIL-STD-202, Method 112,Cond. A,
1×10-5 atm cc/s
MIL-STD-202, Method 112,Cond. A,
1×10-5 atm cc/s
1×10-3 atm cc/s MIL-STD-202, Method 112,Cond. A,
1×10-5 atm cc/s
MIL-STD-202, Method 112,Cond. A,
1×10-5 atm cc/s
Moisture Resistance MIL-STD-202, Method 106 MIL-STD-202, Method 106 MIL-STD-202, Method 106 MIL-STD-202, Method 106 MIL-STD-202, Method 106

Precision Thermostats

  3450R_3450HR_3455R 3450RC_3450RCH_3455RC 3450CM_3455RM 3455RBV
Series 3450R/3450HR/
3455R Phenolic Automatic Reset Thermostats
3450RC/3450RCH/
3455RC Ceramic Automatic Reset Thermostats
3450CM/3455RM Ceramic and Phenolic Manual Reset Thermostats 3455RBV Overmolded Automatic Reset Thermostats 3450R/ 3450RC/ 3450RCH/ 3455R/3455RC “One-shot” 1/2 in Thermostate
Reset Type automatic automatic manual automatic none
Amperage 15 A resistive max. 15 A resistive max. 15 A resistive max. 15 A resistive max. 15 A resistive max.
Housing Material phenolic ceramic ceramic or phenolic ceramic, epoxy overmold ceramic or phenolic, with or without epoxy-sealed cap and terminals
Operating Temperature Range 0 °C to 150 °C
[32 °F to 302 °F]
0 °C to 260 °C
[32 °F to 500 °F]
52 °C to 232 °C
[125 °F to 450 °F]
(ceramic)
52 °C to 150 °C
[125 °F to 302 °F]
(phenolic)
-12 °C to 105 °C
[10 °F to 221 °F]
-18 °C to 121 °C
[0 °F to 250 °F]
52 °C to 260 °C [125 °F to 500 °F] (ceramic)
52 °C to 150 °C [125 °F to 302 °F] (phenolic)
Environmental Exposure Range 0 °C to 150 °C
[32 °F to 302 °F]
-20 °C to 287 °C
[0 °F to 550 °F]
10 °C to 260 °C
[50 °F to 500 °F]
(ceramic)
10 °C to 150 °C
[50 °F to 302 °F]
(phenolic)
-18 °C to 287 °C [0 °F to 550 °F] (ceramic)
-18 °C to 150 °C [0 °F to 302 °F] (phenolic)

Thermal Cutoffs

  d-series rd-series
Series D-Series RD-Series
Housing silver-plated brass ceramic
Operating Temperature 72 °C to 240 °C [162 °F to 464 °F] 72 °C to 240 °C [162 °F to 464 °F]

We are looking forward to a good cooperation with you!


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