Product Overview

YGM Motor Protectors PTC (Positive Temperature Coefficient) Thermistors serve as thermal protectors for electrical motors. They offer rapid response protection for electrical machines and are designed for compact assembly into windings. Available with or without an insulated sleeve and featuring flexible connecting leads, these PTC thermistors exhibit a non-linear resistance/temperature response, rapidly increasing resistance to a very high value at a specified temperature. They are particularly suited for monitoring the windings of electric machines and for use in simple fail-safe circuitry. When a given temperature is exceeded, the circuit can be switched off through a relay or amplifier due to the PTC sensor's extremely high ohmic value near its response temperature.

Product Attributes

• Brand: YGM
• Type: PTC (Positive Temperature Coefficient) Thermistors
• Features: Rapid response protection, Compact size, Silvered copper leads, Available with or without insulated sleeve, Flexible connecting leads
• Conductor Material: Silvered copper wire
• Conductor Insulation: Teflon (PTFE)
• Insulation Strength: 2.5 kV (between leads and outer insulation, also for threaded sensor)
• Quality Standard: DIN 44081/44082 (for resistance values)
• Testing: Random testing according to DGQ P90/P10 (DIN 40080)
• Origin: Canada (implied by contact information)

Technical Specifications

Type	Model Code	Response Temp. NAT (C)	Tolerance (C)	Colour Code	Nominal Resistance (Ohms)	Max. Resistance (Ohms)	Measuring Voltage (V)	Conductor Cross-section (mm)	Conductor Length (mm)
YGM1	C508	80	5	white - yellow - yellow - white	500 (typical cold)	250	2.5	0.25	500 10
YGM1	C509	90	5	green - yellow - yellow - green	500 (typical cold)	250	2.5	0.25	500 10
YGM1	C510	100	5	red - yellow - yellow - red	500 (typical cold)	250	2.5	0.25	500 10
YGM1	C511	110	5	brown - yellow - yellow - brown	500 (typical cold)	250	2.5	0.25	500 10
YGM1	C512	120	5	grey - yellow - yellow - grey	500 (typical cold)	250	2.5	0.25	500 10
YGM1	C513	130	5	blue - yellow - yellow - blue	500 (typical cold)	250	2.5	0.25	500 10
YGM1	C514	140	5	white - yellow - yellow - blue	500 (typical cold)	250	2.5	0.25	500 10
YGM1	C545	145	5	white - yellow - yellow - black	500 (typical cold)	250	2.5	0.25	500 10
YGM1	C515	150	5	black - yellow - yellow - black	500 (typical cold)	250	2.5	0.25	500 10
YGM1	C655	155	5	blue - yellow - yellow - black	500 (typical cold)	250	2.5	0.25	500 10
YGM1	C516	160	5	blue - yellow - yellow - red	500 (typical cold)	250	2.5	0.25	500 10
YGM1	C517	170	5	white - yellow - yellow - green	500 (typical cold)	250	2.5	0.25	500 10
YGM1	C518	180	5	red - yellow - yellow - white	500 (typical cold)	250	2.5	0.25	500 10
YGM3	C508	80	5	white - yellow - yellow - white	750 (typical cold)	300	7.5	0.25	500 - 180 - 180 - 500 10
YGM3	C509	90	5	green - yellow - yellow - green	750 (typical cold)	300	7.5	0.25	500 - 180 - 180 - 500 10
YGM3	C510	100	5	red - yellow - yellow - red	750 (typical cold)	300	7.5	0.25	500 - 180 - 180 - 500 10
YGM3	C511	110	5	brown - yellow - yellow - brown	750 (typical cold)	300	7.5	0.25	500 - 180 - 180 - 500 10
YGM3	C512	120	5	grey - yellow - yellow - grey	750 (typical cold)	300	7.5	0.25	500 - 180 - 180 - 500 10
YGM3	C513	130	5	blue - yellow - yellow - blue	750 (typical cold)	300	7.5	0.25	500 - 180 - 180 - 500 10
YGM3	C514	140	5	white - yellow - yellow - blue	750 (typical cold)	300	7.5	0.25	500 - 180 - 180 - 500 10
YGM3	C545	145	5	white - yellow - yellow - black	750 (typical cold)	300	7.5	0.25	500 - 180 - 180 - 500 10
YGM3	C515	150	5	black - yellow - yellow - black	750 (typical cold)	300	7.5	0.25	500 - 180 - 180 - 500 10
YGM3	C655	155	5	blue - yellow - yellow - black	750 (typical cold)	300	7.5	0.25	500 - 180 - 180 - 500 10
YGM3	C516	160	5	blue - yellow - yellow - red	750 (typical cold)	300	7.5	0.25	500 - 180 - 180 - 500 10
YGM3	C517	170	5	white - yellow - yellow - green	750 (typical cold)	300	7.5	0.25	500 - 180 - 180 - 500 10
YGM3	C518	180	5	red - yellow - yellow - white	750 (typical cold)	300	7.5	0.25	500 - 180 - 180 - 500 10
CEF1	C508	80	5	white - white	N/A	N/A	N/A	N/A	N/A
CEF1	C509	90	5	green - green	N/A	N/A	N/A	N/A	N/A
CEF1	C510	100	5	red - red	N/A	N/A	N/A	N/A	N/A
CEF1	C511	110	5	brown - brown	N/A	N/A	N/A	N/A	N/A
CEF1	C512	120	5	grey - grey	N/A	N/A	N/A	N/A	N/A
CEF1	C513	130	5	blue - blue	N/A	N/A	N/A	N/A	N/A
CEF1	C514	140	5	white - blue	N/A	N/A	N/A	N/A	N/A
CEF1	C545	145	5	white - black	N/A	N/A	N/A	N/A	N/A
CEF1	C515	150	5	black - black	N/A	N/A	N/A	N/A	N/A
CEF1	C655	155	5	blue - black	N/A	N/A	N/A	N/A	N/A
CEF1	C516	160	5	blue - red	N/A	N/A	N/A	N/A	N/A
CEF1	C517	170	5	white - green	N/A	N/A	N/A	N/A	N/A
CEF1	C518	180	5	red - white	N/A	N/A	N/A	N/A	N/A
Nominal response temperature range: 80 C to 180 C in steps of 10 , plus 145 C and 155 C
Maximum allowable operating temp. Tmax.: 200 C
Max. allowable operating voltage at + 25 C Umax.: 25V (per bead)
Max. allowable power dissipation at + 25 C: 690 mW
Conductor stripping: approx 10 mm
Cold resistance (typical): 40 - 250 Ohms (ideally between 40 - 200 Ohms)
Resistance change: At least 15%/K between 5 C either side of NAT
Special housings: Available in many special housings (manufactured to customer specifications)

Installation Tips

• For PTC temperature sensors in electrical windings, they can only be inserted before impregnation.
• It is advisable to embed one sensor in each phase, ideally in the center of the coil generating most heat, and generally on the outflow side of any air movement.
• Air inflow onto the temperature sensor can interfere with heat transfer.
• If using varnish/lacquer that is not chemically neutral, suitability tests must be undertaken by the customer.
• WARNING! The sensor must be installed parallel with the copper of the winding so that the teflon leads can assume the form of the rest of the winding and thereby retain the high-voltage resistance rating.

2411220237_Cantherm-YGM1-C518_C17188494.pdf