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