Transformer Applications

Thermal controls in this category are used for the protection of the primary or secondary of a transformer coil or power supply. These thermal controls function by sensing an increase in temperature or an increase in current, or a combination of both.

Model	Type	Contact Ratings *
A & AA	Creep Action	4 Amps/120 VAC 2 Amps/240 VAC
A1 & AA1	Creep Action	2 Amps/120 VAC
A1R & AA1R	Creep Action	2 Amps/120 VAC
-A2 & -AA2	Creep Action	5 Amps/120 VAC 2 Amps/240 VAC
A2 & AA2	Creep Action	5 Amps/120 VAC 2 Amps/240 VAC
A2R & AA2R	Creep Action	5 Amps/120 VAC 2 Amps/240 VAC
B	Creep Action	6 Amps/120 VAC 3 Amps/240 VAC
C & CH	Creep Action	5 Amps/120 VAC 2.5 Amps/240 VAC
C & CR	Creep Action	5 Amps/120 VAC 2.5 Amps/240 VAC
F Series	Snap Action	12 Amps/120 VAC 8 Amps/240 VAC
FC Series	Snap Action	12 Amps/125 VAC 8 Amps/250 VAC
G & GR	Creep Action	4 Amps/120 VAC 2 Amps/240 VAC
J Series	Snap Action	15 Amps/120 VAC 10 Amps/240 VAC
JC Series	Snap Action	22 Amps/115 VAC 8 Amps/250 VAC
J(S)	Snap Action **	15 Amps/120 VAC 10 Amps/240 VAC
J(S)C	Snap Action **	22 Amps/115 VAC 8 Amps/250 VAC
K & KR	Creep Action	4 Amps/120 VAC 2 Amps/240 VAC
L	Creep Action	8 Amps/120 VAC 4 Amps/240 VAC
R	Creep Action	6 Amps/120 VAC 3 Amps/240 VAC
ST01	Snap Action	5 Amps/250 VAC
W Series	Snap Action	50 Amps/120 VAC 37 Amps/240 VAC

*See individual data sheets for additional information and links to a complete listing of contact ratings.

** Self-Hold Characteristics

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TRANSFORMER APPLICATIONS