Disc Self Hold Thermal CUT OUT & Resistor Combination

KSD301 / KSD302 thermostat disc self hold thermal cut out is a safety device that prevents a heater from overheating or faulting:

How thermostat disc self hold thermal cut out works?
When the temperature reaches a predetermined level, the thermostat opens, and the contacts remain open. The only way to reset the device is to remove power from the circuit.

½” (13mm) self-hold bimetal disc thermostat

KSD302 Self Hold Thermal Cutout Switch

self-hold thermal protector thermal overload protector

thermostat disc self hold thermal cut out Benefits:
A self hold thermal cut out offers extra safety compared to an automatic reset device, and it works similarly to a manual reset device without the need for a push button.
Types of self hold thermal cut outs
Some types of self hold thermal cut outs include:
KSD301 / KSD302: A combination of a thermostat and a resistor, where the resistor is located below the thermostat’s contact arm.
KSD301 / KSD302 EAW SO: Similar to an auto-reset type, but with an internal heating resistor that prevents the bimetal disc from auto-resetting.
KSD302-T: A 1/2” disc PTC thermal cut-out that features easy mounting, rapid heat transmission, high durability, e alta precisione.

FEATURES
Recognized UL component, tested to UL standard 873
Available with surface, air sensing, well or cavity type mountings
High switching current 25~60 AMP/240 volts
Reliable temperature performance over the life of the device
Ultimate safety device in critical applications
Also available for 115VAC, 24VAC/DC, 48VAC/DC, applicazioni
Various mounting configurations along with different terminations available

CODE	OPEN TEMP	RESET TEMP	CODE	OPEN TEMP	RESET TEMP
45	45± 5 ° C.	≥33°C	140	140± 5 ° C.	100±15°C
50	50± 5 ° C.	≥35°C	145	145± 5 ° C.	100±15°C
55	55± 5 ° C.	42±6°C	150	150± 5 ° C.	105±15°C
60	60± 5 ° C.	45±8°C	155	155± 5 ° C.	110±15°C
65	65± 5 ° C.	48±10°C	160	160± 5 ° C.	115±15°C
70	70± 5 ° C.	50±12°C	165	165± 5 ° C.	120±15°C
75	75± 5 ° C.	53±14°C	170	170±3°C	155± 5 ° C.
80	80± 5 ° C.	55±15°C	175	175± 5 ° C.	130±15°C
85	85± 5 ° C.	60±15°C	180	180± 5 ° C.	135±15°C
90	90± 5 ° C.	65±15°C	185	185± 5 ° C.	140±15°C
95	95± 5 ° C.	70±15°C	190	190± 5 ° C.	145±15°C
100	100± 5 ° C.	70±15°C	195	195± 5 ° C.	150±15°C
105	105± 5 ° C.	75±15°C	200	200± 5 ° C.	155±15°C
110	110± 5 ° C.	75±15°C	205	205± 5 ° C.	160±15°C
115	115± 5 ° C.	80±15°C	210	210± 5 ° C.	165±15°C
120	120± 5 ° C.	85±15°C	215	215± 5 ° C.	170±15°C
125	125± 5 ° C.	85±15°C	220	220± 5 ° C.	175±15°C
130	130± 5 ° C.	90±15°C	225	225± 5 ° C.	180±15°C
135	135± 5 ° C.	95±15°C	230	230± 5 ° C.	185±15°C