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2-1423675-0 Datasheet, PDF (1/3 Pages) Tyco Electronics – Compact, Push To Reset Only P&B Thermal Circuit Breaker
Catalog 1308242
Issued 3-03 (PDF Revised 11-08)
W57 series
Compact, Push To Reset Only
P&B Thermal Circuit Breaker
Features
• New, compact design.
• 3 to 20 amp ratings.
• Cannot be manually tripped.
• Button extends for visual trip indication.
• Push button to reset breaker.
• Numerous mounting and termination options.
• Optional bottom marking of amperage rating.
Agency Approvals
W57 series is UL1077 Recognized as Supplementary Protectors, File
E69543, for Canada and the United States. Available models meet
Ignition Protection requirements in accordance with UL1500.
Approved to VDE 0642/EN60934 (Circuit Breakers for Equipment)
License Number 40007874 (excludes models rated 3-4A and >15A).
CCC mark compliant, certificate 2004010307123217.
Users should thoroughly review the technical data before selecting a product part
number. It is recommended that users also seek out the pertinent approvals files of
the agencies/labora-tories and review them to confirm the product meets the
requirements for a given application.
Electrical Data @ 25°C
Calibration: Will continuously carry 100% of rating.
May trip between 101% and 134%, but must trip at 135% of
rating within one hour at +25°C.
Dielectric Strength: 1,500VAC (60 seconds).
Insulation Resistance: 100 megohms.
Maximum Operating Voltages: 50VDC; 250VAC, 50/60 Hz.
Interrupt Capacity: 1,000 amps in accordance with UL standard 1077.
Resettable Overload Capacity: Ten times rated current.
Reset Time: 60 seconds.
Typical Resistance vs. Current Rating @ +25°C
Current
Rating
in Amps
3.0
4.0
5.0
6.0
7.0
Typical
Resistance
in Ohms
0.083
0.062
0.050
0.042
0.036
Current
Rating
in Amps
8.0
10.0
12.0
15.0
20.0
Typical
Resistance
in Ohms
0.031
0.025
0.021
0.017
0.012
Mechanical/Environmental Data
Operating Temperature Range: 0°C to +60°C.
Termination: .250” (6.35mm) quick connects.
Mounting: Various options. See Ordering Information and drawings.
Approximate Weight: 0.5 oz. (14.3g).
Time vs. Current Trip Curve @ +25°C
1000
900
800
700
600
500
Overload
100%
135%
200%
300%
400%
500%
600%
800%
1000%
Trip Times
No Trip
Trip in 1 hour
4.0 - 40.0 Sec.
1.2 - 12.0 Sec.
0.6 - 5.0 Sec.
0.4 - 2.8 Sec.
0.3 - 1.8 Sec.
0.18 - 0.9 Sec.
0.12 - 0.7 Sec.
400
300
200
135
100
0.1
1
10
100
1000
10,000
Time In Seconds
Ambient Compensation Table
Ambient
Temperature
in °C
-10
0
10
20
25
30
40
50
60
Rating Correction Factor
3-4A Models
.70
.75
.82
.90
1.00
1.10
1.25
1.61
2.15
5-20A Models
.77
.85
.90
.95
1.00
1.05
1.15
1.25
1.40
To use this chart: Divide the breaker
rating by the correction factor to
determine the compensated rating.
Calculate the overloads in terms of
the compensated rating to use the
published trip curve.
Do not use these devices outside
their specified operating temperature
ranges.
Issued 11-08
www.tycoelectronics.com
Dimensions are in inches over
(millimeters) unless otherwise
specified.
Dimensions are shown for reference
purposes only. Specifications and
availability subject to change.
Outline Dimensions
.465
(11.8)
.889
(22.6)
.457
(11.6)
1.15 .689
.303
(29.2) (17.5)
(7.7)
SEE TERMINAL DRAWINGS
FOR DETAIL
.031 .102
(.8) (2.6)
SEE MOUNTING
BUSHING AND
MOUNTING HARDWARE
DRAWINGS FOR DETAIL
.575
(14.6)
Optional Protective Boot
Silicone rubber boot is bonded to integral alumimum nut.
.63 DIA.
(16.0)
.622
(15.8)
1-1423696-5
Black boot for W57 with
3/8”-24 bushing.
.70 DIA.
(17.8)
.799
(20.3)
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
1-1423696-6
Clear boot for W57 with
M11 X 1.0 bushing.
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
1
UK: 44-8706-080208