SynTemp® – Temperature Monitoring SynTemp® S01/S02 or S06/S08

Series S01 or S06 thermal cut-offs are moulded, permanently operating bimetal release switches which interrupt the current flow once the nominal temperature has been reached (normally closed contact). Closing combination also possible (S02 or S08).

Permanent operation with immediate reaction once the switching temperature has been reached is ensured due to the unique free-moving and self-aligning construction of the bimetal disc in the thermal cut-off. The thermal cut-offs are available as a single component and in a twin or triplet version.

Further advantages due to the bimetal perforated discs:

  • excellent long-term stability
  • improved space utilisation
  • high mechanical strength
  • excellent long-term stability
Download datasheet


NST-diagram
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Application

The S01 and S06 thermal cut-offs are used in electric motors and transformers.

Standards

VDE EN 60 730-2-9,
UL/CSA 2111, File Nr. E54236
ENEC acc. to EN 60730

Delivery forms

Nominal switching temperature in 5°C-steps of 60 to 200°C as standard, further temperatures on request.

Version: 01 available with (S01) or without (C01) insulation cap out of Mylar® / Nomex®, Epoxy resin impregnated or bare.

Version: 06 available with (S06) or without (C06) insulation cap, basically Epoxy resin impregnated.

Standard cable length 300 mm, other lengths on request.

Technical data

Switch properties
Property Unit of measure S01 S02 S06 S08
Switch type Opening contact Closing contact Opening contact Closing contact
Nominal switching temperatures °C 60-200 60-200 70-200 70-180
Tolerance K ±2.5 / ±5 ±5 ±5 ±5
Reverse switch temperature Depending on NST Depending on NST Depending on NST Depending on NST
Total bouncing time ms <1 <1 <1 <1
Operating voltage AC/DC V up to 500 AC / 14 DC up to 500 AC up to 500 AC/28 DC up to 500 AC
Rated voltage AC V 250 (VDE)/277 (UL) 250 (VDE)/277 (UL) 250 (VDE)/277 (UL) 250 (VDE)/277 (UL)
Rated current AC cos φ=0,4 A 1.8 / 10,000 cycles no specification no specification no specification
Rated current AC cos φ=0.6 A 1.6 / 10,000 cycles 1.6 / 10,000 cycles 6.3 / 10,000 cycles 6.3 / 10,000 cycles
Rated current AC cos φ=1.0 A 2.5 / 10,000 cycles 2.5 / 10,000 cycles 10.0 / 10,000 cycles 10.0 / 10,000 cycles
Max. switching current AC cos φ=0.4 A 7.2 / 1,000 cycles no specification no specification no specification
Max. switching current AC cos φ=1.0 A 6.3 / 3,000 cycles; 7.5 / 300 cycles no specification 25.0 / 100 cycles no specification
Mechanical
Property Unit of measure S01 S02 S06 S08
Contact resistance ≤50 ≤50 ≤50 ≤50
High-voltage resistance kV 2.0 2.0 2.0 2.0
Standard connection lead wire mm² 0.25 / AWG22 0.25 /AWG22 0.75 / AWG18 0.75 / AWG18
For devices in protection class I+II I+II I+II I+II
Diameter (with/without insulation cap) mm 9.5 9.5 10.5 10.5
Installation height of the housing (with/without insulation cap) mm from 4.3 from 4.7 from 7.0 from 7.0
Length of insulation cap mm 15.0 15.0 17.5 17.0
Pressure resistance of the housing N 450 450 600 600