1、 INCH-POUND AMSC N/A FSC 5925 MIL-PRF-55629/21G 10 March 2010 SUPERSEDING MIL-PRF-55629/21F 21 September 2005 PERFORMANCE SPECIFICATION SHEET CIRCUIT BREAKERS, MAGNETIC, PANEL SEAL, TRIP-FREE, SERIES TRIP, DOUBLE 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 (configuration1). Copyright Communications - Electronics Command Provided by IHS under license with
3、CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-55629/21G 2 Ltr Inches mm Min Max Min Max A - 1.515 - 38.48 B .735 .765 18.67 19.43 C .641 .671 16.28 17.04 D 1.189 1.251 30.20 31.78 E 1.969 2.031 50.01 51.59 F .060 .065 1.52 1.65 G .030 .035 0.76 0.89 H
4、 .115 .145 2.92 3.68 J .312 REF .374 REF 7.92 REF 9.50 REF K 1.499 1.561 38.07 39.65 L .199 .261 5.05 6.63 M - 2.232 - 56.69 N .594 .656 15.09 16.66 P .365 .395 9.27 10.03 R .719 .781 18.26 19.84 S .030 .035 0.76 0.89 T .079 REF .141 REF 2.01 REF 3.58 REF U .019 REF .021 REF 0.48 REF 0.53 REF V .019
5、 REF .081 REF 0.48 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 lo
6、ng, material: Brass, 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 thi
7、ck, brass nickel 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 performan
8、ce requirements of 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
9、” and “CB CONT OPEN” 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-55629/21G 3 FIGURE
10、 2. Dimensions and configurations (configuration 2). Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-55629/21G 4 Ltr Inches mm Min Max Min Max A 1.985 2.015 50.42 51.18 B
11、1.205 1.235 30.61 31.37 C .641 .671 16.28 17.04 D - 1.515 - 38.48 E .735 .765 18.67 19.43 F .060 .065 1.52 1.65 G .030 .035 0.76 0.89 H .115 .145 2.92 3.68 J .280 .310 7.11 7.87 K 1.515 1.545 38.48 39.24 L .215 .245 5.46 6.22 M - 2.620 - 66.55 N - 2.256 - 57.30 P .735 .765 18.67 19.43 R .610 .640 15
12、.50 16.26 S .019 REF .021 REF 0.48 REF 0.53 REF T .095 REF .125 REF 2.41 REF 3.18 REF U .030 .033 0.76 0.84 V .095 .125 2.41 3.18 W .360 .390 9.14 9.91 X .245 .275 6.22 6.99 Y .329 .359 8.36 9.12 Z .095 .125 2.41 3.18 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general in
13、formation only. 3. 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 - slotte
14、d 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 plated, SAE-AMS-QQ-N-290 nonglare or equivalent; may be replaced with MS25082-B22 or equivalent.
15、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 of this specification. Butadiene acrylonitrite has been successfully used in the past and should b
16、e 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 OPEN” is optional. FIGURE 2. Dimensions and configurations (configuration 2) - Continued. Copyright
17、 Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-55629/21G 5 REQUIREMENTS Dimensions and configuration: See figure 1 and figure 2. Current ratings: See table I. High inrush: Applies
18、 unless otherwise 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 res
19、istive, 1 ampere 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. Termina
20、l strength: Applied 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. Copyright Communications - Electronics
21、 Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-55629/21G 6 Part or Identifying Number (PIN): The PIN to be cataloged and stocked by the Government consists of the prefix M55629/21 and four succeeding code let
22、ters as follows: 1/, 2/ For pole identification, see figure 1 Pole 1 Pole 2 M55629/21 E K E M Two pole circuit breaker with panel seal, and auxiliary contacts. Current rating code, see table I. 3/ Voltage, frequency, and time delay curve code, see tables I and II. 3/ When circuit breakers without au
23、xiliary contacts, are installed in new equipment, replacement spares should possess this feature since it is more economical 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. _ 1/ Special PINs for equipm
24、ent 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: M55629/21XXXX. Replace slash with A for items without auxilia
25、ry contacts (M55629A21XXXX). Replace slash with B for items without the high-inrush feature (M55629B21XXXX). Replace slash with C for items without either high-inrush feature or auxiliary contacts (M55629C21XXXX). 2/ Replace slash with D for items requiring configuration 2 (M55629D21XXXX). Replace s
26、lash with E for items requiring configuration 2 without auxiliary contacts (M55629E21XXXX). Replace slash with F for items requiring configuration 2 without the high-inrush feature (M55629F21XXXX). Replace slash with G for items requiring configuration 2 without the high-inrush feature or auxiliary
27、contacts (M55629G21XXXX). 3/ If both poles have identical ratings, code letters will repeat for each pole. If both poles are not identical, poles 1 and 2, respectively (see figure 1) shall be coded in ascending order of the current rating code letter. If both poles have identical current ratings but
28、 different voltage, frequency, and time delay code letters, then these code letters shall be coded in ascending order. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-5562
29、9/21G 7 TABLE I. Circuit breaker dash numbers and applicable characteristics (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 Res
30、istance or impedance ohms (max) Amperes Code letter Amperes Code letter 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 1.75 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
31、 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 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
32、 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 .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 3
33、0.0 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, 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
34、 Hz .3 at 400 Hz .08 at dc .08 at 60 Hz .15 at 400 Hz .035 at dc .035 at 60 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 .00
35、5 at 60 Hz .006 at 400 Hz Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-55629/21G 8 TABLE II. Circuit breaker dash numbers and applicable characteristics (configuration
36、2). Current rating Voltage Resistance Current rating Voltage Resistance Amperes 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.
37、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 or L M or N P, R
38、, 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 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 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 0.9 at d
39、c 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 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,
40、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 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
41、0.035 at 60 Hz 0.11 at 400 Hz 0.02 at dc 0.02 at 60 Hz 0.04 at 400 Hz 0.016 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 0.007 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 Communic
42、ations - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE III. Operating voltage, frequency, and tripping-time delay delay (configuration 1). 1/ See footnotes at end of table IV. MIL-PRF-55629/21GTime
43、delay percent rated current Tripping-time delay at 25C 2C (tripping time in seconds) 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
44、 one hour one hour 125 150 200 400 600 800 1,000 100 N/A 20 2 1 .6 .29 10 N/A 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 .
45、4 Inst Inst Inst N/A 5.8 2 .35 .125 .05 .036 N/A .6 .2 .035 Inst Inst Inst N/A 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 9 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo r
46、eproduction or networking permitted without license from IHS-,-,-TABLE IV. Operating voltage, frequency, and tripping-time delay (configuration 1) - Continued. 1/ Time delay percent rated current Tripping-time delay at high and low temperature C (tripping time in seconds) 3/ 50 V dc 240 V ac, 60 Hz
47、240 V ac, 400 Hz K L M N P R S -40 Max +85 Min -40 Max +85 Min -40 Max +85 Min -40 Max +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
48、 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 100 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 or 150 percent of rated current. Between 100 percent and 125 or 150 percent, they may trip. Ins
