Catalog 1308242
Issued 3-03 (PDF Rev. 5-10)
W58
series
P&B Push To Reset Only
Thermal Circuit Breaker
Features
• 0.5 amp to 30 amp ratings.
• Cannot be manually tripped.
• Button extends for visual trip indication.
• Push button to reset breaker.
• Termination is screw or .250” QC.
• Bottom marked amperage rating optionally available.
Maximum Resistance vs. Current Rating @ +25°C
Current
Rating
in Amps
0.5
1
2
3
4
5
6
7
*No UL/CSA
Agency Approvals
W58 Series is UL 1077 Recognized as Supplementary Protectors, File
E69543 and meets Ignition Protection requirements in accordance
with UL 1500. W58 Series is also CSA Accepted as Supplementary
Protectors (Appliance Component Protectors), File LR15734.
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/laboratories and review them to confirm the product meets the
requirements for a given application.
Maximum
Resistance
in Ohms
5.0
1.35
0.32
0.18
0.10
0.026
0.026
0.020
Current
Rating
in Amps
8
9
10
12
15
20
25
30*
Maximum
Resistance
in Ohms
0.020
0.020
0.014
0.010
0.010
0.005
0.006
0.004
Mechanical/Environmental Data
Electrical Data @ +25°C
Calibration:
Breaker will continuously carry 100% of rated load. It may trip
between 101% and 145% of rated load, but must trip at
145% at 25°C.
Dielectric Strength:
Over 1,500 volts RMS.
Maximum Operating Voltages:
50VDC; 250VAC.
Interrupt Capacity:
2,000 amps at 50VDC (0.5 - 30 amp models).
1,000 amps at 250VAC (0.5 - 30 amp models).
Note:
30 amp model not UL or CSA
.
Resettable Overload Capacity:
Ten times rated current.
Shock:
Withstands to 10g.
Endurance Cycling:
Over 1,000 cycles at 200% of rated load.
Vibration:
Withstands to 10g at 10-55 Hz.
Weight:
Less than 1 1/2 oz. (42.5g).
Time vs. Current Trip Curve @ +25°C
1000
(A) All 5-30 Amp Models
(B) All 1-4 Amp Models
Overload
Trip Times
Ambient Compensation Chart
1.40
Overload
Trip Times
900
800
(A)
1.30
Load Current As A Percent
Of Breaker Rating
Correction Factor
700
600
500
400
300
200
100
0
.1
100%
145%
200%
400%
600%
800%
1000%
No Trip
Trip in 1 hour
6.0-30 Sec.
1.6-4.5 Sec.
0.60-1.7 Sec.
0.25-0.90 Sec.
0.15-0.65 Sec.
100%
145%
200%
400%
600%
800%
1000%
No Trip
Trip in 1 hour
10-45 Sec.
3.0-14.0 Sec.
1.4-7.0 Sec.
0.75-4.3 Sec.
0.50-3.4 Sec.
1.20
1.10
1.00
0.90
0.80
0.70
0.60
–20 –10
0
10 20 30 40 50 60
(B)
Ambient Temperature In Degrees Centigrade (°C)
1
10
100
1000
Time In Seconds
To use this chart:
Read up from the ambient
temperature to the curve, and across to find a correction
factor. Multiply 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.
Revised 5-10
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.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-8706-080208
1
Catalog 1308242
Issued 3-03 (PDF Rev. 5-10)
Ordering Information
Typical Part No.
1. Designator:
W = Circuit breaker
2. Series Number:
58 = Single Pole, Push-to-Reset
3. Circuit Function:
X = Series Trip
4. Button and Rate Marking:
A = White, plain, no rate marking, no trip band
B = White with red rate marking, red trip band
C = White with black rate marking, red trip band
E = White with red rate marking no trip band
F = White with black rate marking, no trip band
K = Black, plain, no rate marking, no trip band
>
W
58
-X
B
1
A
4
A
-5
Note:
Rate marking on the bottom of the case is available on a special order basis. Consult factory for details.
5. Mounting Bushing:
1 = Metal, 7/16” x .500” (12.70mm) long
4 = Metal, 15/32” x .300” (7.62mm) long, black
6 = Metal, 3/8” x .465” (11.81mm) long, round
6. Terminals:
A = Quick connect .250” (6.35mm) straight
C = 6/32 screw 90° (screws installed)
D = 6/32 screw 90° (screws bulk packed)
7. Mounting Hardware:
4 = Metal, knurled nut/hex nut
6 = Metal, knurled nut/hex nut/lock washer
12 = Metal, knurled nut/lock washer
15 = Metal, two hex nuts/lock washer
18 = Metal, hex nut/lock washer
7 = Plastic, 3/8” x .465” (11.81mm) long, round
7 = Plastic, knurled nut
22 = Plastic knurled nut, metal lock washer
99 = No mtg. hardware supplied (Use C, Step #8)
Note:
For other hardware combinations, order separately. See mounting hardware Ordering Information table.
8. Mounting Hardware Packaging:
A = Assembled to bushing
B = Bulk unassembled
C = No mounting hardware
9. Specify Amp Rating:
0.5
3
6
1
4
7
2
5
8
9
10
12
15
20
25
30*
*Not UL or CSA
Stock Items –
Authorized distributors are more likely to stock the following items.
W58-XB1A4A-1
W58-XB1A4A-2
W58-XB1A4A-3
W58-XB1A4A-4
W58-XB1A4A-5
W58-XB1A4A-6
W58-XB1A4A-7
W58-XB1A4A-8
W58-XB1A4A-10
W58-XB1A4A-12
W58-XB1A4A-15
W58-XB1A4A-20
W58-XB1A4A-25
W58-XB1A4A-30
W58-XC4C12A-1
W58-XC4C12A-2
W58-XC4C12A-3
W58-XC4C12A-5
W58-XC4C12A-7
W58-XC4C12A-10
W58-XC4C12A-15
W58-XC4C12A-20
W58-XC4C12A-25
W58-XC4C12A-30
Outline Dimensions
Terminal Options
.050 MAX.
(1.27)
CLOSED POSITION
.440
(11.18)
1.375
(34.93)
.250 (6.35) x .032 (.81)
QUICK CONNECT TERMINALS
.415
(10.54)
CODES 1 & 4
.425
.850 (10.80)
(21.59)
.312.005
(7.92.13)
1.375
(34.93)
15
1.375
(34.93)
.425
(10.80)
.850
(21.59)
.250
(6.35)
CODE 6
SEE TERMINAL DRAWINGS
SEE MOUNTING
FOR DETAIL
BUSHING AND
MOUNTING HARDWARE DRAWINGS FOR DETAIL
.281 MAX.
(7.14)
OPEN POSITION
BUTTON
A
.187
(4.75)
.440
(11.18)
.660
(16.76)
.312 TYP.
(7.92)
C&D
.156
.85
(3.96)
(21.6)
#6-32 SCREW
& LOCK WASHER ASSEMBLY
2
Revised 5-10
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.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-8706-080208
Catalog 1308242
Issued 3-03 (PDF Rev. 5-10)
Mounting Hardware
Hex Nut
Knurled Nut
Lockwasher
ALTERNATE TEETH TWISTED
IN OPPOSITE DIRECTIONS
STRAIGHT KNURL
24 PITCH
Mounting Hardware Dimensions
Metal
Dimension Hex Nut
.556 (14.12)
3/8”
A.
7/16”
15/32”
.625 (15.88)
.556 (14.12)
.085 (2.16)
.111 (2.82)
.078 (1.98)
Metal
Knurled Nut
.562 (14.27)
.625 (15.88)
.625 (15.88)
.078 (1.98)
.125 (3.18)
.125 (3.18)
Plastic
Metal
Knurled Nut Lockwasher
.74 (18.8)
.562 (14.27)
–
–
.126 (3.2)
–
–
.540 (13.72)
.600 (15.24)
.018 (.457)
.022 (.559)
.018 (.457)
A
FLAT
A
A
3/8”
B.
7/16”
15/32”
B
B
B
Mounting Hardware Ordering Information
Mounting
Bushing
Code
1
4
6
7
Metal
Knurled
Nut
55-010A
•
55-008A
55-008A
Plastic
Knurled
Nut
–
–
–
1423696-2
Metal
Hex
Nut
55-011A
55-001B
55-001D
55-001D
Metal
Lock
Washer
88-021B
88-002A
88-006K
88-006K
• 55-010B (silver) 55-010E (black)
Mounting Bushing
Type 1
Recommended Cutout
Optional Protective Boot
Silicone rubber boot is bonded to integral alumimum nut.
1-1423696-5
Black boot for W58 with 3/8”-24
bushing.
.622
(15.8)
.440 - .450 DIA.
(11.2 - 11.4)
.63 DIA.
(16.0)
7/16-28 THREAD
(SILVER)
Type 4
.300
(7.62)
Optional Bottom Marking of Rating
This is available on a special order basis. Consult factory for details.
.470 - .480 DIA.
(11.9 - 12.2)
15/32-32 THREAD
(BLACK)
Type 6
.465
(11.81)
.370 - .380 DIA.
(9.4 - 9.7)
3/8-24 THREAD
(SILVER)
Type 7
.465
(11.81)
.370 - .380 DIA.
(15.0 - 15.3)
3/8-24 THREAD
(BLACK)
Disclaimer:
While Tyco Electronics and its affiliates referenced herein have made every
reasonable effort to ensure the accuracy of the information contained in
this document, Tyco Electronics cannot assure that this information is error
free. For this reason, Tyco Electronics does not make any representation or
offer any guarantee that such information is accurate, correct, reliable or
current. Tyco Electronics reserves the right to make any adjustments to
the information at any time. Tyco Electronics expressly disclaims any
implied warranty regarding the information contained herein, including, but
not limited to, the implied warranties of merchantability or fitness for a
particular purpose. Tyco Electronics‘ only obligations are those stated in
Tyco Electronics’ Standard Terms and Conditions of Sale. Tyco Electronics
will in no case be liable for any incidental, indirect or consequential
damages arising from or in connection with, including, but not limited to,
the sale, resale, use or misuse of its products. Users should rely on their
own judgment to evaluate the suitability of a product for a certain purpose
and test each product for its intended application.
In case of any potential ambiguities or questions, please don’t hesitate to
contact us for clarification.
© 2010 by Tyco Electronics Corporation. All Rights Reserved.
P&B, Potter & Brumfield, TE (logo) and Tyco Electronics are trademarks of the Tyco Electronics group of companies and its licensors.
Revised 5-10
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.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-8706-080208
3
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