Thermal Protetors type CR6 / SR6; 4.0 – 25A

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CR6 and SR6 not automatically resetting, voltage-retained, with connection cables, with Expoxy

SR6 with Mylar®-Nomex® insulating cap

Art.-Nr.
CR6
SR6

 

Switch type: NC contact CR6 self-retaining NC contact SR6 latching
isolated: no yes
Temperature
Nominal switching temperature (NST), in 5 K steps [°C] 60 – 180
Tolerance range ≤ 140 °C Tol [ [K] ± 5
Tolerance range ≥140 °C Tol [ [K] ± 10
Switch-back temperature (RST below NST) UL [ [K] ≥ 35
(defined RST on customer request) VDE [ °C] ≥ 35
Tension
Operating voltage range up to … 250 V
Rated voltage AC [VAC] 120/230 (VDE), 250 (UL)
Current/switching cycles
Rated current – cos j = 1.0 [A] / [n] 10,0 / 1’000
Rated current – cos j = 0.6 [A] / [n] 6,3 / 1’000
max. switching current– cos j = 1.0 [A] / [n] 25,0 / 1’000
Other data
High-voltage resistance [kV] 2
Total bounce time [ms] < 1
Contact resistance (according to MIL-STD R5757) [mΩ] £ 50
Vibration resistance 10 … 60 Hz [m/s2] 100
Compressive strength of the switch housing [N] 600
Available licenses
please specify IEC, ENEC, VDE, UL, CSA, CQC
Dimensions (standard)
Diameter Ø d [mm] 9,0 9,4
Overall height h [mm] from 6.3 from 6.7
Length of the insulation cap l [mm] 17,0
Standard connection Stranded wire: 0.75 mm2/AWG 18
Functional diagram
The ceramic resistor connected in parallel to the switch heats up after the contact opens, which keeps the contact in the open state.

 

Note

The data and information provided are based on tests and test series. They are intended as a guide, which is why there may be deviations for individual applications and uses. The suitability for a specific application must be checked by the user in each individual case. We will of course be happy to advise you.