Temperature limiter type CP1 / SP1 / SP1 600N / KP1

CP1, SP1 and KP1 with voltage self-retaining switches, not automatically resetting, with connection cables

SP1, KP1 insulated with Mylar®-Nomex® cap

Switching type NC contact CP1 self-retaining Opener SP1 self-holding Opener KP1 self-holding
not automatically resetting
Insulated: with insulation protection cap no yes yes
Temperature
Nominal switching temperature (NST), in 5 K steps [°C] 60 – 180
Tolerance range -Standard- Tol[ [K] ± 5
Switch-back temperature (RST below NST) UL [°C]

VDE [°C]

 > 35

> 35
Tension
Operating voltage range from … [VAC] 100 to 250
Rated voltage AC [VAC] 250 (VDE), 277(UL)
Current/switching cycles
Rated current – cos j = 1.0 [A] / [n] 2,5 / 1‘000
Nennstrom – cos j = 0,6 [A] / [n] 1,6 / 1‘000
max. Switching current – cos j = 1.0 [A] / [n] 10,0 / 1‘000
Rated current cos j = 0.6 [A] / [n] 6,3 / 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 for SP1 600N —
Suitable for installation in protection class I I + II I + II
Impregnation resistance suitable
Available licences
please specify IEC, VDE, UL, CSA, CQC, SP1 600 N IEC, VDE only
Dimensions (standard)
   
    SP1 SP1 600N  
Diameter Ø d [mm] 9,0 9,4 10,0 9,4
Overall height (with standard connection) h [mm] from 4,5 from 4,9 from 6,6 from 4,9
Length of insulation cap l [mm] — 15,0; 17,0 13,0
Standard stranded wire connection: 0,25 mm2/AWG 22
Functional circuit diagram
When the switch is opened, the current flows through the PTC heating resistor and heats the switch so that it remains switched off until the voltage is removed.

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