Bilame with retractable insulation cap, high breaking capacity for insertion into the windings of rotating machines and transformers. Customized application in single, double, triple etc ...
Bimetallic design: PT0 / PTF
Insertion area: Sensor for insertion into the windings of rotating machines and transformers.
The insulation of the U1 retractable cap can withstand a temperature of 200 ℃.
Compact and pressure-stable: Ideal for installation in a limited space, very suitable for mounting on and on windings.
Reliability and durability: constant contact pressure over the entire temperature range; Very fast switching, therefore little influence of arcing on the contacts.
Sensitivity to temperature: reproducible Switching temperature induced by a non-resistive and electrically discharged mechanical bimetallic disc.
Speed: Excellent thermal coupling induced by a compact switchgear.
Flexibility: Wide assortment of wires available for connection.
Air Vacuum Test Procedure - The bimetallic strips are placed in a sealed chamber. - The chamber pressure is reduced to 30 mbar. At this pressure and at a temperature between 18 and 25 ° C the bimetallic strips are immersed in a impregnating resin. Bimetallates are placed under these conditions during dry 60. - The pressure is then normally stabilized at 1 Bar. - 120 sec. later bimetallic strips are removed from the impregnating resin. After which the bimetallic strips will remain for 2 hours in an oven at a temperature of 120 ° C in order to harden the impregnating resin.
Technical data :
Normal operating voltage / intensity: 250VAC
Number of cycles to 250VAC / 10A COS FI 1.0 = 10000
Number of cycles to 250VAC / 6.3A COS FI 0.6 = 10000
Contact resistance: <50mOhm
Dielectric resistance: 1.5KV
Cable: AWG18 0.75mm²
-35K if tripping temperature <95 ° C
-50K if 100 ° C <trip T ° <180 ° C
-65K if 185 ° C <trip T ° <200 ° C
XLPE AWG22 300V cable if T ° <150 ° C
Teflon cable FEP AWG24 600V T °> 150 ° C
Teflon cable PFA AWG22 600V on request, resistant to 250 ° C
Standard cable lengths
L1 L4 = = 520 +/- 10mm
L2 L3 = = 200 +/- 5mm
L5 L6 = = 300 +/- 5mm
Dimensions L = 16 mm D = 10 mm h = 6.7 mm