KLIXON® thermal circuit breakers are

THERMAL CIRCUIT BREAKERS

KLIXON? Thermal Circuit Breakers

KLIXON? thermal circuit breakers are compact, lightweight, protective devices designed to repeatedly interrupt short circuits or extended overloads in applications which require precise, dependable operation plus high resistance to shock and vibration. To avoid nuisance tripping caused by harmless transient or momentary overloads, these circuit breakers feature an inherent thermal time-lag characteristic. This enables equipment to operate at maximum limits with complete safety.

The heart of the thermal circuit breaker is the KLIXON? metal disc. At a predetermined overload, the heat caused by current passing through the disc causes the disc to reverse its curvature, or snap. This snapping action separates the electrical contacts and opens the circuit.

Trip curves provide the approximate time vs current characteristics based on the ambient "room" temperature of 77?F (25?C). Should your application require performance characteristics beyond the ambient "room" temperature of 77?F (25?C), derating curves provide additional data for ambient temperatures significantly higher or lower than standard room temperature.

KLIXON? thermal circuit breakers are available in automatic reset and manual reset. Some manual reset devices offer a switchable feature whereby the contacts can be manually opened to de-energize the circuit. For the automatic reset device, the circuit stays open until the disc cools and returns to its original curvature, completing the circuit. For the trip-free manual reset device, the contacts will remain open until the device's pushbutton is depressed to reset the device and complete the circuit.

"With over 97 years of experience in a myriad of industries and mission-critical applications, Sensata Technologies is one of the world's leading suppliers of sensing, electrical protection, control and power management solutions.

Motors, machines, equipment and vehicles in the industrial, heating, ventilation, air conditioning, appliance, automotive, recreational, mobile work, data and telecommunications industries operate safely and efficiently thanks to reliable and robust Sensata circuit protectors, switches, and sensors. Our products sense and monitor position, temperature and pressure, provide power protection and help manage challenging DC-to-AC power conversions.

From design to manufacturing and every business process in between, our people strive not just to meet standards of excellence but to set them. Serving you is mission-critical to us."

Martha Sullivan, President and Chief Executive Officer, Sensata Technologies

Cross Reference for KLIXON? Thermal Circuit Breakers

SERIES PAGE AUTOMATIC MANUAL OPEN COVERED STUD SCREW UL CID AA55571 2 Amps 3 Amps 4 Amps 5 Amps 6 Amps 8 Amps 10 Amps 12.5 Amps 15 Amps

CM 6

??

CA 6 ?

?

CDM 6

?

?

CDA 6 ?

?

?? ?? ?? ??

7851 8

?

??

?

7854 8 ?

??

?

????????? ????????? ????????? ?????????

??

??

SDLS 10

?

??

SDLM 12

?

??

?

SDLA 12 ?

??

?

SLA 12 ?

?

?

?

FDLM 14

?

??

FDLA 14 ?

??

FDLS 14

?

??

FDLT 14

?

??

6766-19 16

?

?

?

7855-6 18

?

7855-7 18 ?

PDM 20

?

PDA 20 ?

PDLM 22

?

PDLA 22 ?

PSM 24

?

PSA 24 ?

9115-5 28 ?

9115-6 28

?

??

? / 03

??

? / 08

?

??

?????????

?

??

?????????

?

?

/ 04

?

?

/ 07

?

? ? / 06 ? ? ? ? ? ? ? ? ?

?

? ? / 05 ? ? ? ? ? ? ? ? ?

??

? / 01

?

??

? / 02

?

Cross Reference for KLIXON? Thermal Circuit Breakers

17.5 Amps 20 Amps 25 Amps 30 Amps 35 Amps 40 Amps 45 Amps 50 Amps 60 Amps 70 Amps 80 Amps 90 Amps 100 Amps 105 Amps 120 Amps 135 Amps 150 Amps 175 Amps 200 Amps PAGE SERIES TYPE

COMMERCIAL

?????? ?????? ?????? ?????? ??????

??????

?? ??

6

CM

6

CA

6 CDM

6 CDA

8 7851

8 7854

?????????????

10 SDLS

????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ?????????????

?????????????

12 SDLM 12 SDLA 12 SLA 14 FDLM 14 FDLA 14 FDLS 14 FDLT

16 6766-19

?????? ??????

???????? ???????? ???? ???? ??? ???

? ? 18 7855-6 ? ? 18 7855-7

20 PDM

20 PDA

???? ????

22 PDLM 22 PDLA

24 PSM

24 PSA

28 9115-5

28 9115-6

PRECISION

C Series (CA, CM, CDA, CDM) 2 to 40 Amp Commercial Thermal Circuit Breaker

FEATURES

? 30VDC or 120VAC, 2 to 40 Amps ? Open and closed construction ? Automatic and manual reset options ? Ignition protected SAE J1171 ? Weatherproof SAE J553 ? UL Recognized E36869

DESCRIPTION

The KLIXON? C series thermal breakers are designed to protect wiring and meet the harshest environmental requirements. The C series closed construction circuit breakers are weatherproof sealed for protection against moisture, dust, grease, fuel vapors and other harsh environments. The C series breakers are compact, lightweight and designed to interrupt short circuits or overloads, and combine trip-free protection with fast response time. Typical applications are protection of wire cable of accessory circuits, equipment and battery protection in construction and off-road equipment, marine, recreational vehicles (RV's), mining, agricultural equipment and electric (hybrid) vehicles.

ORDERING INFORMATION

X - X - X

Configuration CA = Auto, open unit CM = Manual, open unit CDA = Auto, sealed unit CDM = Manual, sealed unit

Amp Rating (2, 3, 4, 5, 6, 8, 10, 12.5, 15 17.5, 20, 25, 30, 35, 40)

Mounting Nuts = leave blank for none

I = optional mounting nuts

PERFORMANCE CHARACTERISTICS

Calibration : 200% rated current, 77?F (25?C) Ultimate Trip at 77?F (25?C) Endurance

Interrupt Current Capacity Vibration

Salt Spray Dielectric Strength Insulation Resistance Weight (with mounting

nuts)

2 to 10 amps : 20 to 150 seconds 12.5 to 40 amps : 5 to 55 seconds

Must hold 100%, Must trip 135%

Per SAE J553 Per SAE J553 and ABYC E-11 10G MIL-STD-202 Method 204, Condition A MIL-STD-202 Method 101D (sealed only) MIL-STD-202 Method 301, 1500VAC min MIL-STD-202 Method 302, Condition B, 100 M min CDM: 48 grams max CDA: 41 grams max CM : 37 grams max CA : 32 grams max

5

C Series (CA, CM, CDA, CDM)

Current in % Rated Load AmbientTemperature in ?F, ?C

TRIP CURVE - Approximate Time, Current Characteristics At 77?F (25?C)

1000

500

100

.10

1

Dotted Lines: 10 amps or below Solid Lines: Above 10 amps

10

100

Trip Time in Seconds

1000

10,000

DIMENSIONS

INCHES [MM]

2.0 [ 50.8] (DOES NOT INCLUDE SEALING GASKET)

1.586 [40.28] 1.562 [39.67]

1.221 [31.01] 1.159 [29.44]

.430 [10.92]

.562 [ 14.27] MIN. PANEL HOLE DIA.

.380 [9.65]

1.145 [29.08]

.047 [1.19] REF. THK. LOCKWASHER (2 PLACES)

OPTIONAL #8-32 UNC-2B MOUNTING NUT (2 PLACES)

.250 [6.35] LONG #8-32 UNC-2A ROUND HEAD SCREW (2 PLACES)

.641 [16.28]

.906 [23.01]

DERATING CURVE

160?F 140?F

3

4

100?F

70?F

1

32?F

71?C 60?C

38?C

2 77?F, 25?C 21?C

0?C

0?F

-18?C

-40?F -60?F

40

-40?C -51?C 60 80 100 120 140 160 180

Ultimate Trip in % Rated Load

Performance characteristics are based on room temperature (77?F, 25?C). Consult derating curve for ambient temperatures significantly higher or lower than standard room temperature.

Example: At 77?F (25?C) the device is calibrated to hold at 100% of rated current (1) and trip at 135% of rated current (2). At 140?F (60?C), the same device will hold at approximately 78% of rated current (3), and trip at approximately 115% of rated current (4).

1 3

2 1 3

R 2

.312 [7.93]

EYELET FOR #10 SCREW (2 PLACES)

BOTTOM VIEW 2 AMP THRU 10 AMP

BOTTOM VIEW 12? AMP THRU 40 AMP



6

7851 & 7854 Series 12.5 to 60 Amp Commercial Thermal Circuit Breaker

FEATURES

? 30VDC or 120VAC, 12.5 to 60 Amps ? Sealed assemblies, manual and automatic reset options ? Ignition protected SAE J1171 ? Weatherproof SAE J553 ? UL Recognized E36869

DESCRIPTION

The KLIXON? 7851 and 7854 series thermal breakers were designed to protect wiring and meet the harshest environmental requirements. The 7851 and 7854 series closed construction circuit breakers are weatherproof sealed for protection against moisture, dust, grease, fuel vapors and other harsh environments. The 7851 and 7854 series breakers are compact, lightweight and designed to interrupt short circuits or overloads, and combine trip-free protection with fast response time. Typical applications are protection of wire cable of accessory circuits, equipment and battery protection in construction and off-road equipment, marine, recreational vehicles (RV's), mining, agricultural equipment and electric (hybrid) vehicles.

ORDERING INFORMATION

X - X - X - X

Configuration 7851 = Manual, sealed 7854 = Auto, sealed

Stud Length (approx) 18 = 0.310" for 7851 & 7854 37 = 0.455" for 7851 26 = 0.455" for 7854 13 = 0.610" for 7851 15 = 0.610" for 7854

Amp Rating (12.5, 15, 17.5, 20, 25, 30 35, 40, 50, 60)

Mounting Nuts = leave blank for none

I = optional mounting nuts

PERFORMANCE CHARACTERISTICS

Calibration : 200% rated current, 77?F (25?C)

12.5 to 60 amps : 5 to 55 seconds

Ultimate Trip At 77?F (25?C) Must hold 100%, Must trip 135%

Endurance Per SAE J553

Interrupt Current Capacity Per SAE J553 and ABYC E-11

Vibration 10G MIL-STD-202 Method 204, Condition A

Salt Spray MIL-STD-202 Method 101D

Dielectric Strength MIL-STD-202 Method 301, 1500VAC min

Insulation Resistance MIL-STD-202 Method 302, Condition B, 100M min

Weight (with mounting nuts)

7851 : 54 grams max 7854 : 49 grams max

7

7851 & 7854 Series

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