1、 INCH-POUND AMSC N/A FSC 5925 MIL-PRF-55629/20G 10 March 2010 SUPERSEDING MIL-PRF-55629/20F 21 September 2005 PERFORMANCE SPECIFICATION SHEET CIRCUIT BREAKERS, MAGNETIC, PANEL SEAL, TRIP-FREE, SERIES TRIP, SINGLE POLE (0.2 TO 30 AMPERES) This specification is approved for use by all Departments and
2、Agencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-PRF-55629. FIGURE 1. Dimensions and configurations (configuration 1). Copyright Communications - Electronics Command Provided by IHS under license with
3、 CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-55629/20G 2 Ltr Inches mm Min Max Min Max A .735 .765 18.67 19.43 B .641 .671 16.28 17.04 C 1.189 1.251 30.20 31.78 D 1.969 2.031 50.01 51.59 E .060 .065 1.52 1.65 F .030 .035 0.76 0.89 G .115 .145 2.92 3
4、.68 H .199 .261 5.05 6.63 J .312 REF .374 REF 7.92 REF 9.50 REF K 1.499 1.561 38.07 39.65 L - 2.232 - 56.69 M .719 .781 18.26 19.84 N .594 .656 15.09 16.66 P .365 .395 9.27 10.03 R .019 REF .021 REF 0.48 REF 0.53 REF S .030 .035 0.76 0.89 T .079 REF .141 REF 2.01 REF 3.58 REF U .019 REF .081 REF 0.4
5、8 REF 2.06 REF NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Unless otherwise specified, tolerance is .031 (0.79 mm). 4. Lockwasher, split, No. 8 NASM35338-137 or equivalent. 5 Terminal screw, No. 8, .164-32 UNC-2A, .187 .015 long, material: Bra
6、ss, tin plated (ASTM-B545 or equivalent). 6. Passivated - corrosion resisting steel screw, slotted head with integral O-ring, may be replaced by the NASM3212-12 with cross-recessed head or equivalent. 7. Hex mounting nut .500 - 32 UNF-2B thread, .625 .010 across flats, .120/.125 thick, brass nickel
7、plated, SAE-AMS-QQ-N-290 nonglare or equivalent; may be replaced with MS25082-B22 or equivalent. 8. Internal tooth lockwasher, .625 .005 O.D., .510 .005 I.D., .028 .005 thick, stainless steel. 9. O-ring, material: Material shall be selected to enable the O-ring to meet the performance requirements o
8、f this specification. Butadiene acrylonitrite has been successfully used in the past and should be considered for meeting the O-ring requirements of the specification. 10. Auxiliary switch terminals shall provide for soldered connections. 11. Physical item marking of the words “LOAD” and “CB CONT OP
9、EN” is optional. FIGURE 1. Dimensions and configurations (configuration 1) - Continued. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-55629/20G 3 FIGURE 2. Dimensions an
10、d configurations (configuration 2) - Continued. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-55629/20G 4 Ltr Inches mm Min Max Min Max A .735 .765 18.67 19.43 B .641 .6
11、71 16.28 17.04 C 1.205 1.235 30.61 31.37 D 1.985 2.015 50.42 51.18 E .060 .065 1.52 1.65 F .030 .035 0.76 0.89 G .115 .145 2.92 3.68 H .215 .245 5.46 6.22 J .280 .310 7.11 7.87 K 1.515 1.545 38.48 39.24 L - 2.256 - 57.30 M - 2.620 - 66.55 N .610 .640 15.50 16.26 P .735 .765 18.67 19.43 R .030 .035 0
12、.76 0.89 S .019 .021 0.48 0.53 T .095 REF .125 REF 2.41 REF 3.18 REF U .360 .390 9.14 9.91 V .095 .125 2.41 3.18 W .095 .125 2.41 3.18 X .245 .275 6.22 6.99 Y .329 .359 8.36 9.12 Z .055 .085 1.40 3.18 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3
13、. Unless otherwise specified, tolerance is .015 (0.38 mm). 4. Lockwasher, split, No. 8 NASM35338-137 or equivalent. 5 Terminal screw, No. 8, .164-32UNC-2A, .187 .015 long. Material: Brass, tin plated (ASTM-B545 or equivalent). 6. Passivated - corrosion resisting steel screw - slotted head with integ
14、ral O-ring, may be replaced by the NASM3212-12 with cross-recessed head or equivalent. 7. Hex mounting nut: .500 - 32 UNF-2B thread, .625 010 across flats, .120/.125 thick, brass nickel plated, SAE-AMS-QQ-N-290 nonglare or equivalent; may be replaced with MS25082-B22 or equivalent. 8. Internal tooth
15、 lockwasher, .625 .005 O.D., .510 .005 I.D., .028 .005 thick, stainless steel. 9. O-ring, material: Material shall be selected to enable the O-ring to meet the performance requirements of this specification. Butadiene acrylonitrite has been successfully used in the past and should be considered for
16、meeting the O-ring requirements of the specification. 10. Auxiliary switch terminals shall provide for soldered connections. 11. Physical item marking of the words “LOAD” and “CB CONT OPEN” is optional. FIGURE 2. Dimensions and configurations (configuration 2) - Continued. Copyright Communications -
17、 Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-55629/20G 5 REQUIREMENTS Dimensions and configuration: See figure 1 and figure 2. Current ratings: See table I. High inrush: Applies unless otherwise
18、 specified. 1/ Voltage ratings: See table II. Ratings are maximum; the minimum operating voltage is limited by the internal resistance or impedance of the circuit breaker (see table I). Auxiliary contacts: Contact capacity shall be 10 amperes to 250 volts 60/400 Hz and 2 amperes resistive, 1 ampere
19、inductive to 50 V dc. Tripping-time delays: See table I and table II. Terminal and mounting hardware: See figure 1. Terminals: See figure 1. Solderability is applicable to auxiliary contact terminals. Actuator strength: 25 pounds. Actuator operating force: 4 pounds, maximum. Terminal strength: Appli
20、ed load: 30 pounds. Applied torque: 10 inch-pounds. Interrupting capacities: 2,000 amperes at 50 V dc. 2,000 amperes at 120 V ac, 60 Hz. 1,500 amperes at 120 V ac, 400 Hz. 1,000 amperes at 240 V ac, 60 and 400 Hz. Seal: Panel seal test applies. Part or Identifying Number (PIN): The PIN to be catalog
21、ed and stocked by the Government consists of the prefix M55629/20 and two succeeding code letters as follows: 1/, 2/ M55629/20 E M Single pole circuit breaker with panel seal and auxiliary contacts. Current rating code, see table I. Voltage, frequency, and time delay curve code, see tables I and II.
22、 _ 1/ Special PINs for equipment manufacturers use only. Equipment manufacturers who do not require the high-inrush feature or auxiliary contacts in specific production applications may order circuit breakers without these features by modifying the prefix as follows: M55629/20XX: Replace slash with
23、A for items without auxiliary contacts (M55629A20XX). Replace slash with B for items without the high-inrush feature (M55629B20XX). Replace slash with C for items without either the high-inrush feature or auxiliary contacts (M55629C20XX). 2/ Replace slash with D for items requiring configuration 2 (
24、M55629D20XX). Replace slash with E for items requiring configuration 2 without auxiliary contacts (M55629E20XX). Replace slash with F for items requiring configuration 2 without the high-inrush feature (M55629F20XX). Replace slash with G for items requiring configuration 2 without the high-inrush fe
25、ature or auxiliary contacts (M55629G20XX). Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-55629/20G 6 When circuit breakers without auxiliary contacts are installed in ne
26、w equipment, replacement spares should possess this feature since it is more economic for the DoD to stock one version of this item instead of two. Therefore, stock numbers should not be requested (or assigned) for this special PIN. TABLE I. Circuit breaker dash numbers and applicable characteristic
27、s (configuration 1). Current rating Voltage frequency and tripping time delay code letter from table II Resistance or impedance ohms (max) Current rating Voltage frequency and tripping time delay code letter from table II Resistance or impedance ohms (max) Amperes Code letter Amperes Code letter 0.1
28、 0.1 0.1 0.250 0.250 0.250 0.35 0.35 0.35 0.5 0.5 0.5 0.75 0.75 0.75 1.0 1.0 1.0 1.75 1.75 1.75 2.5 2.5 2.5 3.0 3.0 3.0 A A A B B B C C C D D D E E E F F F G G G H H H J J J K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K
29、 or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S 120 at dc 120 at 60 Hz 350 at 400 Hz 21 at dc 23 at 60 Hz 43 at 400 Hz 12 at dc 12 at 60 Hz 30 at 400 Hz 6 at dc 6 at 60 Hz 12 at 400 Hz 3 at dc 3 at 60 Hz 7 at 400 Hz 2 at dc 2 at 60 Hz 4 at 400 Hz 0.
30、9 at dc 0.9 at 60 Hz 2 at 400 Hz .35 at dc .35 at 60 Hz .6 at 400 Hz .3 at dc .3 at 60 Hz .5 at 400 Hz 4.0 4.0 4.0 5.0 5.0 5.0 7.5 7.5 7.5 10.0 10.0 10.0 12.5 12.5 12.5 15.0 15.0 15.0 20.0 20.0 20.0 25.0 25.0 25.0 30.0 30.0 30.0 K K K L L L M M M N N N P P P R R R S S S T T T U U U K or L M or N P,
31、R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S .1 at dc .1 at 60 Hz .3 at 400 Hz .08 at dc .08 at 60 Hz .15 at 400 Hz .035 at dc .035 at 60
32、 Hz .11 at 400 Hz .02 at dc .02 at 60 Hz .04 at 400 Hz .013 at dc .015 at 60 Hz .03 at 400 Hz .01 at dc .011 at 60 Hz .02 at 400 Hz .007 at dc .007 at 60 Hz .01 at 400 Hz .006 at dc .006 at 60 Hz .007 at 400 Hz .005 at dc .005 at 60 Hz .006 at 400 Hz Copyright Communications - Electronics Command Pr
33、ovided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-55629/20G 7 TABLE II. Circuit breaker dash numbers and applicable characteristics (configuration 2). Current rating Voltage Resistance Current rating Voltage Resistance Amp
34、eres Code letter frequency and tripping time delay code letter from table II or impedance ohms (max) Amperes Code letter frequency and tripping time delay code letter from table II or impedance ohms (max) 0.1 0.1 0.1 0.250 0.250 0.250 0.35 0.35 0.35 0.5 0.5 0.5 0.75 0.75 0.75 1.0 1.0 1.0 1.75 1.75 1
35、.75 2.5 2.5 2.5 3.0 3.0 3.0 A A A B B B C C C D D D E E E F F F G G G H H H J J J K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R
36、, or S 186 at dc 142 at 60 Hz 350 at 400 Hz 26.4 at dc 26.4 at 60 Hz 60 at 400 Hz 13.2 at dc 13.2 at 60 Hz 30 at 400 Hz 6 at dc 6.36 at 60 Hz 13.2 at 400 Hz 3 at dc 3 at 60 Hz 7 at 400 Hz 2 at dc 2 at 60 Hz 4 at 400 Hz 0.9 at dc 0.9 at 60 Hz 2 at 400 Hz 0.35 at dc 0.35 at 60 Hz 0.7 at 400 Hz 0.3 at
37、dc 0.3 at 60 Hz 0.5 at 400 Hz 4.0 4.0 4.0 5.0 5.0 5.0 7.5 7.5 7.5 10.0 10.0 10.0 12.5 12.5 12.5 15.0 15.0 15.0 20.0 20.0 20.0 25.0 25.0 25.0 30.0 30.0 30.0 K K K L L L M M M N N N P P P R R R S S S T T T U U U K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P
38、, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S K or L M or N P, R, or S 0.113 at dc 0.1 at 60 Hz 0.3 at 400 Hz 0.08 at dc 0.08 at 60 Hz 0.175 at 400 Hz 0.035 at dc 0.035 at 60 Hz 0.11 at 400 Hz 0.02 at dc 0.02 at 60 Hz 0.04 at 400 Hz 0.0
39、16 at dc 0.015 at 60 Hz 0.03 at 400 Hz 0.012 at dc 0.011 at 60 Hz 0.02 at 400 Hz 0.0075 at dc 0.007 at 60 Hz 0.01 at 400 Hz 0.006 at dc 0.006 at 60 Hz 0.009 at 400 Hz 0.005 at dc 0.005 at 60 Hz 0.006 at 400 Hz Copyright Communications - Electronics Command Provided by IHS under license with CRAINot
40、for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE III. Operating voltage, frequency, and tripping-time delay (configuration 1). 1/ See footnotes at end of table IV. MIL-PRF-55629/20G Time delay percent rated current Tripping-time delay at 25C 2C (tripping time in s
41、econds) 50 V dc 240 V ac, 60 Hz 240 V ac, 400 Hz K L M N P R S Max Min Max Min Max Min Max Min Max Min Max Min Max Min no trip no trip no trip no trip no trip no trip no trip 100 one hour one hour one hour one hour one hour one hour one hour 125 150 200 400 600 800 1,000 100 N/A 20 2 1 .6 .29 10 N/A
42、 2.5 .36 .13 Inst Inst 12 N/A 1.5 .29 .15 .06 .05 .5 N/A .13 .031 Inst Inst Inst 120 N/A 20 2.3 1 .6 .29 10 N/A 3 .3 .13 Inst Inst 18 N/A 1.6 .3 .17 .09 .043 1 N/A .16 .04 Inst Inst Inst N/A 60 20 4 .6 .06 .045 N/A 6 2.1 .4 Inst Inst Inst N/A 5.8 2 .35 .125 .05 .036 N/A .6 .2 .035 Inst Inst Inst N/A
43、 500 160 19 3.5 .5 .043 N/A 60 20 2 .250 .025 Inst 1,800 2/ no trip no trip no trip no trip no trip no trip no trip 8 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE IV. Ope
44、rating voltage, frequency, and tripping-time delay (configuration 1) - Continued. 1/ Tripping-time delay at high and low temperature C (tripping time in seconds) 3/ Time delay percent 50 V dc 240 V 60 Hz 240 V 400 Hz rated K L M N P R S current -40 Max +85 Min -40 Max +85 Min -40 Max +85 Min -40 Max
45、 +85 Min -40 Max +85 Min -40 Max +85 Min -40 Max +85Min no trip no trip no trip no trip no trip no trip no trip 100 one hour one hour one hour one hour one hour one hour one hour 125 150 200 400 600 800 500 N/A 100 20 5 2 .5 N/A .1 Inst Inst Inst 100 N/A 10 3 1 .5 .1 N/A .05 Inst Inst Inst 500 N/A 1
46、00 20 5 .5 1 N/A .05 Inst Inst Inst 100 N/A 10 3 1 .5 .1 N/A .05 Inst Inst Inst N/A 500 100 20 5 .5 N/A .5 .1 Inst Inst Inst N/A 100 10 3 1 .5 N/A .1 .05 Inst Inst Inst N/A 1500 500 100 5 .5 N/A 5 .5 Inst Inst Inst 1/ Circuit breakers shall not trip at 100 percent rated current but must trip at 125
47、or 150 percent of rated current. Between 100 percent and 125 or 150 percent, they may trip. Instantaneous is defined as less than 15 milliseconds. 2/ Items without the high-inrush feature (for use in production only) are not subject to this requirement. High-inrush test shall be performed using one
48、alternation which has a peak value of 1800 percent of rated current. 400 Hz and dc delays shall be subjected to a 400 Hz waveform, 60 Hz delays shall be subjected to a 60 Hz waveform. 3/ High and low test temperature tolerances are 2C. MIL-PRF-55629/20G 9 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE V. Operating voltage, frequency, and tripping-time delay (c
