ST07

$130.00

Key Benefits:
• Individually temperature checked on modern equipment.
• Material of snap-action disc is made by the famous USA Engineer Material System.
• Repeatable temperature performance over life.
• Gasketed steel case suitable for most impregnation processes.
• Wide selection of leads and insulating sleeves.

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Description

Applications:

• Shaded pole motors
• Capacitor motors
• Transformers
• Recessed lighting fixtures
• Vacuum cleaners
• Automotive accessory motors
• PC boards and other applications

 

Auto Reset Thermal Switch ST07 Working Principle

The core part of the thermal overload protector switch ST07 is a copper-nickel alloy bimetal disc. When the circuit works normally, the contact is in a closed state. When the rated operating temperature is reached, the bimetal disc is deformed by heat and snap rapidly, cut off the circuit. After that, the device begins to cool down. When it reaches the defined reset temperature, the bimetal disc and the spring disc snaps back into its start position, the contacts will close again, and the device starts working again.

 

Why ST07 Series Thermal Protectors

Each thermal overload protector switch ST07 rating has a bimetal disc designed and manufactured for the specific temperature rating. Each device is calibrated and checked for opening temperature. The core part of the bimetallic sheet is selected from the internationally renowned company EMS. The two-sheet molding is produced by ourselves, which is beneficial to quality control and full temperature inspection. The precise, consistent, and reliable performance is obtained by emphasizing quality.

 

Certifications

AGENCY STANDARD NUMBER APPLICATION FILE NO NST(℃)
UL 2111 Thermal motor protector E336150 65-165°C
VDE EN 60730-2-2 Thermal motor protector 40041853 55-180°C

 

Certifications  Maximum Contact Ratings

Life cycles: 10000 cycles (270VAC/10A)

 

RATED VOLTAGE

RATED CURRENT
ST07-CG
270VAC 10A
120VAC 22A
16VDC 20A

 

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Specification

Technical Data

  Normally closed 

Rated voltage & current

270VAC/10A
16VDC/20A

Case material

Metal case

Size(mm) without sleeve

23.3*10.5*5.1

Operating temp. range

50~180°C

Operating temp. tolerance

±5K

Standard lead wire

UL3135 AWG18 black, length 65/65mm

Standard Opening Temperature
 
Open Temp.°C Reset Temp.°C

Low Resistance Bimetal Disc

High Resistance Bimetal Disc 
Item Code
50 30 017 197
55 35 018 198
60 45 019 199
65 50 020
70 50 021 201
75 55 022 202
80 55 023 203
85 60 024 204
90 60 025 205
95 65 026 206
100 65 027 207
105 70 028 208
110 70 029 209
115 75 030 210
120 75 031 211
125 80 032 212
130 85 033 213
135 85 034 214
140 90 035 215
145 95 036 216
150 95 037 217
155 100 038 218
160 105 039 219
165 110 040 /
170 115 041 /
175 120 042 /
180 125 043 /

 

Construction

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Structure






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