ST01 Series Thermal Protector

$200.00

Key Benefits:

  • The first China-made round shape thermal protector got UL, TUV and CQC certifications and broke 30 years’ monopoly of German protectors.
  • Thermal protection  ST01 is in a well-sealed design,which can prevent product failure from the vacuum impregnation process.
  • Thermal protection switch is Small in size and suitable to be embedded inside the coil of electric motors.
  • motor thermal overload switch with a metal casecan bear up to 50KG coil shaping pressure, which has high thermal conductivity and temperature sensitivity.
  • Pure temperature action type products, bimetal-disc without current and heat effect, accurate temperature control.
Download datasheetGet A Qoute

Description

Applications:

• Electric motors
• Transformers
• Coils
• Electronics, sensor

 

Integration of Resources:

Integrating global supply chain resources, we purchase bimetal discs from EMS, the world’s largest manufacturer of bimetal disc materials, and purchase cases from German suppliers that use stamping and forming technology.

  • The spring material comes from Japan NGK and is manufactured by a Japanese stamping supplier.
  • The case and spring adopt silver plating technology, which greatly reduces the contact resistance.
  • The key components of the bimetallic disareproduced by fully automatic forming equipment, separated by tunnel furnace separation equipment, with good consistency and stable performance.

Advantages:

Contact: Silver-nickel alloy, with long lifetime, over-current capability
  Spring: Beryllium copper imported from Japan, with good elasticity
 Case: Metal case, better thermal conduction, precision control within 0.02mm, the thickness of silver plated on the surface up to 3um

 

Certification:

 AgencyStandard NO.File NO.ApplicationNST(℃)
CQC

GB14536.3

GB14536.10

CQC12002072538Motor Protector Thermostat60-180°C
TUVIEC60730-2-9R50230650Thermostat60-180°C
UL2111/60730-2-2E336150Thermal Motor Protector60-165°C

 

Many clients specify Saftty as their first choice for thermal protectors. Contact us now and we will find the right solutions for you.

Specification

Technical Data

 

Normally closed/Normally open

Nominal switching temperature, in 5K-step(TK)

60~180°C

Tolerance-Standard

±5K/±8K/±10K

Reset temperature range

-30K±15K

Max.operating voltage

500VAC/60VDC

Working current

250VAC, 6A

Cycles at 250VAC/3.0A cosφ1.0

10000

Cycles at 250VAC/6.3A cosφ1.0

3000/N

Cycles at 250VAC/4.0A cosφ0.45

1000/N

Cycles at 250VAC/1.0A cosφ0.45

10000/N

Contact resistance(lead length 55mm)

<50mΩ/N

Insulation voltage

1.5KV

Insulation sleeve length “a”

>15mm

Diameter “d”

<8.9mm

Height “h”

<4.6mm

Lead wire-electric

UL3398 AWG22 White (300V 150°C)

Lead wire-teflon

UL10362 AWG22 Yellow (600V 250°C)

Outgoing line length-standard

(The drawing as below)

L1=L4=520±10mm
L2=L3=200±5mm

 

Drawing

 

Many clients specify Saftty as their first choice for thermal protectors. Contact us now and we will find the right solutions for you.

Structure

Dimensional  Drawing of Different Capsulation

TypeST01ST01ST01ST01ST01
CodeU1U2U3U4U5

Insulation

                 
Drawing dimensions (mm)              
Technical specification

With shrink cap insulation

NST 60-180°C

Insulation Voltage 1.5KV

Without cap insulation

NST 60-180°C

Without epoxy cover and lead wite

NST60-180°C

WIth epoxy cover

NST 60-160°C

Insulation Voltage 1.5KV

Transparent shrink cap insulation

NST 60-155°C

Insulation Voltage 1.5KV

TypeST01ST01ST01ST01ST01 self hold
CodeU6U7U8U9U1
Insulation        
Drawing dimensions (mm)
Technical specification

High temperature resistant plastic insulating case

NST 60-155°C

Insulation Voltage 15.KV

With M4 threaded case

NST 60-180°C

Insulation Voltage 1.5KV

High temperature resistant plastic insulating case with pin connected

NST 60-155°C

Insulation Voltage 1.5KV

Round shape, high temperature resistant plastic case

NST 60-155°C

Insulation Voltage 1.5KV

With PTC self-hold

NST 60-180°C

Insulation Voltage 1.5KV

 

The above dimensions are for your reference. 

 

Many clients specify Saftty as their first choice for thermal protectors. Contact us now and we will find the right solutions for you.

Contact Us