Single Pole Circuit Breakers Multi-Pole Circuit Breakers Configurations Operating Characteristics 55 56 58 59 Delay Curves 60 Specifications 61 Decision Tables 62 SINGLE POLE CIRCUIT BREAKERS The AP fully sealed, magnetic circuit breaker combines power switching .380 MAX. 1.605 MAX. [9.65] [ 40.77] .312 [7.92] .625 MAX. and accurate, reliable circuit [15.88] protection with inverse time delays and trip free features. Unlike a thermal circuit breaker, 22 .875 [ 22.23] the AP does not change its trip current 11 over a wide temperature span. In RUBBER "O" RING addition, the AP magnetic circuit LOCK RING breaker is available in either DC, ON-OFF PLATE (OPTIONAL) LOCKWASHER 50/60Hz or 400Hz versions and with various delays to match the breaker 3/8 -32 NEF-2B HEX NUT to specific application requirements. One of the most important features of this breaker is the "trip free" action, .656 MAX. which means the circuit will not [16.66 ] remain closed in the presence of an overload even though the handle is 1.562 MAX. held in the ON position. The delay ON [39.67] mechanism senses the fault and the .625 MAX. contacts open. [15.88 ] Waterproof panel integrity is OFF provided by an "O" ring bushing seal and a silicon rubber gland within the KEYWAY .060 - .065 WIDE bushing/handle assembly. [1.52 - 1.65] .026 - .030 DEEP Typical applications include commu- [.66 - .76 ] nication, navigation and aircraft instrumentation, radar and power supplies. Mounting Detail recognition and CSA certification, construction and operating principle. .125 [ 3.18 [ is essentially the same as the AP in FOR PANEL INTEGRITY, THIS HOLE MUST BE BLIND WITH .075 [1.91] MIN. DEPTH .325 [ 8.26 [ The UP circuit breaker, with UL It is approved for operation at 50 50/60Hz to 15 amperes and 240 volts .391 [ 9.93 [ volts DC to 20 amperes, 120 volts 50/60Hz to 7.5 amperes. The UP circuit breaker is available in single Panel Mounting Detail: Tolerance for Mtg. .005 [.13] Maximum Panel Thickness: .156 [3.96] pole units only, due to UL and CSA creepage specifications and the wide glass terminals utilized. Single Pole Circuit Breakers 55 MULTI-POLE CIRCUIT BREAKERS AP Multi-Pole Combinations Circuit demands and design ingenuity suggest a limitless number of special combinations, ranging from a two pole unit with one series breaker and a simple ON*OFF switch, to a more complex three pole unit having one series, one shunt and one relay configuration with auxiliary indicator circuit contacts. Please contact Airpax for specific part number. Two Pole, AP12 Two of the basic units are combined in a sealed case to provide protection for dual circuit. A single toggle handle actuates both internal trip mechanisms. Conversely, an overload in either circuit trips both simultaneously. The AP12 consists of two independent series trip breakers, each available with its own rating and delay characteristics. This two pole unit can therefore have an unlimited number of combinations, which makes ordering by a code system impractical. Thus, if the poles differ, a descriptive drawing is recommended. One frequent use of two pole breakers is to interrupt either or both sides of a power line. Likewise, three pole breakers often use three identical coils. However, any two or three pole breaker may have any coil of any delay in any desired combination. (Unless otherwise specified, we assume the two or three poles to be all alike.) All multi-pole units have provisions for a rugged three point panel mount. Use of 6-32 panel seal screws together with the bushing mount is recommended to maintain specification shock and vibration levels. Two Pole, AP12,Toggle 1.780 MAX. .380 MAX. [ 45.21] [9.65] NOTE A .312 [7.92] .625 .625 MAX. [15.88] [15.88] 22 .875 [22.23] 11 .625 RUBBER "O" RING [15.88] LOCK RING 1.281 MAX. [32.53] ON-OFF PLATE (OPTIONAL) LOCKWASHER Mounting Detail .375 .003 .250 [6.53 (2 PLACES) .375 .076 9.53 1.562 MAX. [ 39.67] OFF KEYWAY .060 - .065 WIDE [1.52 - 1.65] .026 - .030 DEEP [.66 - .76 ] 56 Multi-Pole Circuit Breakers 9.53 .002 .051 .147 3.73 .625 [15.88 .125 [ 3.18 .325 .391 [ 9.93 [ 8.26 [ ON .375 .076 [ .875 MAX. .625 [22.23] [15.88 ] .003 FOR PANEL SEAL INTEGRITY, THIS HOLE MUST BE BLIND WITH .075 [1.91] MIN. DEPTH [ [9.53] [ .375 [9.53 [ 6-32 THD. .188 [4.78 ] DEEP (2 PLACES) -32 NEF-2B HEX NUT [ 3/8 Panel Mounting Detail: Tolerance for Mtg. .005 [.13] Panel Thickness: .125-.156 [3.18-3.96] Note: Tolerance .031 [.79] Angles: 5 unless noted. Dimensions in brackets [ ] are millimeters. A: Threaded inserts exceed seated height of bushing by .005-.015 [.13-.38] Three Pole, AP112 Three circuits may be simultaneously protected. One actuating toggle handle closes all circuits and all poles trip in the presence of an overload on any circuit. Some typical combinations could be: 3 series poles; 2 series and one shunt; 2 series and one relay; or 3 series with a set of auxiliary contacts. Like the two pole breakers, each pole may have different ratings and delays. exacting production and test program to maintain their Qualified Products Listing (QPL). One, two and three pole series trip units, with or without auxiliary contacts, have been accepted for this listing. Refer to specification sheets MIL-PRF-39019/1 through 6 for the application government designations. AP/MIL Circuit Breakers Type AP-MIL breakers, produced in accordance with MIL-PRF39019 and the pertinent specification sheets, are subjected to an Three Pole, AP112,Toggle 1.780 MAX. .380 MAX. [ 45.21] [9.65] NOTE A .312 .625 [7.92] [15.88] .625 MAX. [15.88] .625 [15.88] 22 .875 [ 22.23] 11 .937 [ 23.80 ] RUBBER "O" RING 1.937 MAX. [ 49.20 ] LOCK RING ON-OFF PLATE (OPTIONAL) LOCKWASHER 3/8 -32 NEF-2B HEX NUT Mounting Detail [ .003 .687 [ .076 17.45 ON [15.88 OFF KEYWAY .060 - .065 WIDE [1.52 - 1.65] .026 - .030 DEEP [.66 - .76] [ 8.26 [ .325 1.562 MAX. [39.67 ] .625 [ .875 MAX. .625 [22.23] [15.88 ] .003 .687 .076 17.45 .002 .051 .147 .125 [3.18 3.73 FOR PANEL SEAL INTEGRITY, THIS HOLE MUST BE BLIND WITH .075 [1.91] MIN. DEPTH [ .250 [6.53 (2 PLACES) .687 .687 [17.45] [ 17.45 [ 6-32 THD. .188 [4.78 ] DEEP (2 PLACES) .391 [ 9.93 Panel Mounting Detail: Tolerance for Mtg. .005 [.13] Panel Thickness: .125-.156 [3.18-3.96] Multi-Pole Circuit Breakers 57 CONFIGURATIONS Series Trip Relay Trip Shunt Trip AP1- 3 Voltage Trip Sometimes called "dump circuits" or "panic trip circuits," these units make it possible to open main power contacts with lower power inputs from one or more sources. This configuration is becoming increasingly more important for sensitive circuitry and denser packaging in automation systems. Available in series, shunt or relay configurations. 58 Configurations DIM. FROM BACK OF PANEL. AP6-1 (Screw Terminal) FROM BACK OF PANEL TO END OF TERMINALS SINGLE POLE 1.750 MAX. [44.45] MULTIPOLE 1.925 MAX. [48.90] 6 - 32 x .187 [ 4.75 ] SCREW AND NO. 6 LOCKWASHER .438 [11.13 ] Relay Trip (Note A) AP1- 4 (Relay) .130.010 3.30.25 ] ] AP series trip circuit breakers are available with electrically isolated contacts which are rated at 1/2 ampere, 120 volts AC or 50 volts DC. These contacts provide SPDT switching action which can be used to indicate "power-on" and "power-off" conditions or to actuate lights, alarms or timing devices. SINGLE POLE 1.780 45.21] MAX. MULTIPOLE 1.950 49.53] MAX. This permits the overload sensing coil to be placed in a circuit which is electrically isolated from the trip contacts. The coil may be actuated by sensors monitoring pressure, flow, temperature, speed, etc. Other typical applications include crowbar, interlock and emergency/rapid shutdown circuitry. Trip may be accomplished by voltage or current, which must be removed immediately upon tripping. Remote Indication, AP1-1R 6 - 32 x .187 [ 4.75 ] SCREW NO. 6 LOCKWASHER .076.010 DIA. 1.93.25 ] ] The shunt trip is designed for controlling two separate loads with one assembly. The control is established by providing overload protection for the critical load. When the current through this load becomes excessive and reaches the trip point the protector will open and remove power from both loads simultaneously. The total current rating of both loads must not exceed the maximum contact rating. AP7-1 (Screw Terminal with Terminal Block) ] Shunt Trip Series Trip AP1-1 ] The most popular configuration for magnetic protectors is the series trip where the sensing coil and contacts are in series with the load being protected. The handle position conveniently indicates circuit status. In addition to providing conventional overcurrent protection, it's simultaneously used as a power disconnect. .438 [11.13] Series with Auxiliary Switch AP1-1R (Note A) C Switch with Auxiliary Switch AP1-1RC (Note A) NC C NO NO NC NC NO C NO NC UPI-1 (UL Recognized Series) Note: Tolerance .031 [.79] Angles: 5 unless noted. Dimensions in brackets [ ] are millimeters. A. Main breaker contacts open. C OPERATING CHARACTERISTICS Inrush Pulse Tolerance Nominal Values of Series Resistance at +25 C Current Ratings DC, 50/60, 400Hz in Amperes .050 .100 .250 .500 .750 1.00 2.00 3.00 5.00 7.50 10.0 15.0 20.0 DC Series Resistance All Delays Except 40, 50, 60 DC Series Resistance Delays 40, 50, 60 470 ohms 145 ohms 18.0 ohms 4.30 ohms 1.60 ohms 105 ohms 27.0 ohms 3.80 ohms 1.00 ohms .400 ohms 1.15 ohms .298 ohms .130 ohms .052 ohms .025 ohms The following table provides a comparison of inrush pulse tolerance with and without the inertial delay feature for each of the 50/60Hz delays. Pulse tolerance is defined as a single pulse of half sine wave peak current amplitude of 8 milli-seconds duration that will not trip the circuit breaker. .230 ohms .060 ohms .033 ohms .012 ohms .007 ohms .016 ohms .006 ohms .005 ohms .006 ohms .005 ohms .004 ohms Note: Tolerance at 25% values based on V-A method after 1 hour stabilization at 100% rated current. Consult factory for other limits. Delay Peak Amplitude 61, 62, 71, 72, A, B 4 Times Rated Current (60Hz) 61F, 62F, 71F, 72F 6.5 Times Rated Current (60Hz) 64, 65 10 Times Rated Current (60Hz) 64F, 65F 13 Times Rated Current (60Hz) 41, 42, AF, BF 14 Times Rated Current (400Hz) 41F, 42F 20 Times Rated Current (400Hz) 51, 52 6 Times Rated Current (60Hz) 51F, 52F, AF, BF 8 Times Rated Current (60Hz) Percentage of Rated Current vs.Trip Time in Seconds at 25C in Vertical Mtg. Position Delay 100% 125% (Note A) 200% 400% 800% 40* No Trip .035 Max. .025 Max. .015 Max. .015 Max. 41 No Trip .200 - 7 .055 - .950 .010 - .240 .005 - .080 42 No Trip 3 - 60 .500 - 9 .010 - 1.75 .005 - .100 49* No Trip .100 Max. .050 Max. .020 Max. .015 Max. 50* No Trip .035 Max. .025 Max. .015 Max. .015 Max. 51 No Trip .400 - 4 .060 - .600 .010 - .200 .005 - .035 52 No Trip 4 - 40 .600 - 6 .010 - 1.50 .005 - .050 59* No Trip .100 Max. .050 Max. .020 Max. .015 Max. 60* No Trip .035 Max. .025 Max. .015 Max. .015 Max. 61 No Trip .500 - 5 .070 - .700 .020 - .200 .008 - .080 62 No Trip 4 - 40 .800 - 8 .010 - .300 .005 - .080 64 No Trip .900 - 10 .200 - 1.70 .040 - .500 .012 - .100 65 No Trip 9 - 60 1.15 - 7 .110 - 1 .010 - .190 69* No Trip .100 Max. .050 Max. .020 Max. .015 Max. 71 (Note B) No Trip .200 - 7 .055 - .950 .010 - .240 .005-.080 72 (Note B) No Trip 3 - 60 .500 - 9 .010 - 1.75 .005 - .100 79 (Note B)* No Trip .100 Max. .050 Max. .020 Max. .015 Max. *Notes: Instantaneous delays (40, 49, 59, 60, 69, 79) are not compatible with inrush enhancement options and are not recommended for general use. A. 150% for delays 40, 50 & 60. 135% minimum trip for delays 41, 42, 49, 71, 72 & 79. B. Military time delays. 71= A, 72=B, 79=C Operating Characteristics 59 DELAY CURVES 10000 LONG 1000 MAY TRIP The delay curves below illustrate our standard instant, short and long delays. Please consult factory for specific delay curves or refer to table on page 59. Delay curves 64 and 65 illustrate the improved inrush tolerance provided compared to standard delays. Not available in MIL configurations. All trip times and trip currents are specified with the breaker mounted in the normal vertical position at ambient temperature of 25C. For time delay test and measurement purposes, the breakers should not carry current prior to application of overload. 100 TIME IN SECONDS Typical Delay Curves 10 1 .1 .01 .001 0 100 150 200 135 300 400 500 600 700 800 900 1000 900 1000 900 1000 PERCENT OF RATED CURRENT 10000 10000 INSTANT 1000 100 10 1 10 1 .1 .1 .01 .01 .001 0 100 150 200 125 300 400 500 600 700 800 900 1000 MAY TRIP TRIP MAY TIME IN SECONDS 100 MAY TRIP TIME IN SECONDS DELAY 64 1000 .001 0 100 150 200 125 PERCENT OF RATED CURRENT 500 600 700 800 10000 SHORT 100 10 TIME IN SECONDS MAY MAY TRIP TRIP 100 1000 1 10 1 .1 .1 .01 .01 .001 0 100 150 200 135 300 400 500 600 700 PERCENT OF RATED CURRENT Delay Curves 800 900 1000 DELAY 65 MAY TRIP TRIP MAY 1000 TIME IN SECONDS 400 PERCENT OF RATED CURRENT 10000 60 300 .001 0 100 150 200 125 300 400 500 600 700 PERCENT OF RATED CURRENT 800 SPECIFICATIONS Trip Free Case Seal AP circuit breakers will trip open on overload, even when forcibly held ON. This prevents the operator from damaging the circuit by holding the handle in the ON position. The breaker is fully sealed and will not show evidence of leakage under total immersion. Meets requirements of MIL-PRF-39019. Panel Seal Trip Indication The operating handle of the breaker moves forcibly and positively to the OFF position on overload. It is not necessary to manually "reset" to full "OFF" in order to turn it on again. The "O" ring provides, with the other illustrated hardware, a seal against a pressure differential of 15 psi applied for an hour. Lever Strength Ambient Operation The operating lever or its seal will not be damaged by a 10 lb. force applied in any direction. The breaker will operate at any ambient between -40 C and +100 C, when tested in accordance with the requirements of MIL-PRF-39019. Shock Dielectric Strength All breakers withstand 100G without tripping, even while carrying full rated current with shock applied in any plane of 6 ms duration. Test is made according to Method 213, Test Condition I or MIL-Std-202 as outlined in Paragraph 4.6.14 of MIL-PRF-39019. Delay 40, 50 and 60 breakers are tested at 80% of rated current. The breaker will withstand 1250 volts RMS, 60Hz from terminals to case and between the terminals when open. Vibration Insulation Resistance Exceeds 100 megohms at a potential of 100Vdc. Endurance With the circuit breaker operated as an ON-OFF switch, operating life exceeds 10,000 operations at a rate of 6 per minute when tested as follows: 6000 OPS @ rated current plus 4000 OPS @ no load. All breakers withstand vibration from 10 to 55 cycles at .06 double amplitude and 55 to 2000 cycles at 10G, applied in any plane, without damage and without tripping even while operating at full rated current. Test is made in accordance with Method 204A, Test Condition C, of MIL-Std-202 as outlined in Paragraph 4.6.12 of MIL-PRF-39019. Delay 40, 50 and 60 breakers are tested at 80% of rated current. Ratings AP breakers are available in current ratings from 50 milliamperes to 20 amperes, 50 volts DC or 240 volts AC maximum, 60 or 400Hz. Please consult factory for ratings other than those noted. Approximate Weight Per Pole Short Circuit Capacity When tested in accordance with the procedures of UL1077, AP breakers have a short circuit capacity of 1000 amperes at 32Vdc, 120Vac, 240Vac, 60 or 400Hz. Parts are recognized to UL1077 for type UP1 only. The rated Rupture Capacity per MIL-PRF-39019 is 500 amperes, 50 volts DC, 500 amperes, 120 volts AC and 300 amperes, 240 volts AC, 60 or 400Hz. Auxiliary Switch Rating 0.5 AMP @ 120Vac 50Vdc Ounces Grams 1.8 49 Recommended Torque Specifications 6-32 Mounting Inserts 6-8 Inch Pounds 6-32 Screw Terminals 6-8 Inch Pounds /* - 32 Mounting Bushing 20-25 Inch Pounds Specifications 61 DECISION TABLES How to Order Notes: The ordering code for AP magnetic circuit breakers may be determined by following the steps in the decision tables shown here. For example, the following is the code for a two pole AP, hook terminal, series unit, designed for operation in a DC circuit. It has a short time delay and a rating of 20 amperes. The coding given permits a descriptive part number, with limitations. In the illustrated double pole example (AP12-1-51-203), it is automatically assumed that both poles are identical. One great virtue of magnetic circuit breakers is their adaptability to complex circuits, thus variations from pole to pole become the rule rather than the exception. Descriptive drawings are recommended. In this event, factory assigned part numbers are utilized. To determine the ordering number for your particular AP unit, simply follow the steps shown. You may use this number to place a order or as a reference for further questions you may have. A The UP has a wide glass terminal to meet UL and CSA creepage specifications. Except as completely non-standard, there is no space for more than two terminals and the UP is therefore limited to only the single pole series circuit configuration (Third Decision Table - 1). Delays available in the UP are: 40, 50 and 60; 41, 51 and 61; 42, 52 and 62; 64 and 65. B Users should refer to the applicable drawings of MIL-PRF-39019. Configurations vary dependent upon the revision of MIL-PRF-39019. The 6-32 threaded mounted bushings, useful for added strength, are approved under this specification. To assure that proper parts are received, consult the factory for application assistance if there is any doubt about which version is correct for the application concerned. C Screw terminals are available and are equipped with standard terminal block (see page 58). Space permits their use only in the series configuration (Third Decision Table ). Standard terminals are heavy copper hooks. D Screw terminals with SPDT auxiliary switch, available only with the series circuit, may have "R" soldering terminals, flattened and pierced, or "RC" soldering terminals which are cane hooks. Screw terminals (-7, -17, -117) are available with SPDT auxiliary switch "R" type only. E The nominal current values for 100% of rated current (see delay curves) are those listed. Other values can be readily supplied, in general, without delayed delivery. For values above or below the listed range, please consult an Airpax sales office or sales representative. For UP maximum ratings see page 55. F Consult factory for assigned part numbers. 62 Decision Tables Example: 1 First Decision AP12 -1- 51- 203 Type AP Fully sealed magnetic circuit breaker UP (Note A) Underwriters' Laboratories recognized circuit breaker AP - MIL (Note B) /1 through /6 QPL per MIL - PRF-39019 2 Second Decision (Note C) 1 2 3 4 4 1 Screw Terminals 7 5 Fifth Decision (Note E) Nominal Amperage Rating -40 400Hz 150% instant trip* Code Amperes -41 400Hz short time delay -101 .100 Single pole unit, mounted with /* threaded bushing -42 400Hz long time delay -251 .250 -49 400Hz 135% instant trip* -501 .500 -50 DC 150% instant trip* -751 .750 -51 DC short time delay -102 1.000 -52 DC long time delay -252 2.500 -59 DC 125% instant trip* -502 5.000 -60 50/60Hz 150% instant trip* -752 7.500 -61 50/60Hz short time delay -103 10.000 -62 50/60Hz long time delay -153 15.000 -64 50/60Hz high pulse, short time delay (50/60Hz only) -203 20.000 -65 50/60Hz high pulse, long time delay (50/60Hz only) -69 50/60Hz 125% instant trip* -71 DC, 50/60Hz, 400Hz short time delay 135% trip -72 DC, 50/60Hz, 400Hz long time delay 135% trip -79 DC, 50/60Hz, 400Hz instant time delay 135% trip* 12 17 Two pole unit, bushing plus (2) 6-32 threaded inserts 112 117 Three pole unit, bushing plus (2) 6-32 threaded units 3 Fourth Decision Hz and Delay Poles Hook Terminals 5 Third Decision Internal Configuration See page 9 for maximum voltage ratings. -0 Switch Only (Omit 4th and 5th Decisions) -1 Series -1R (Note D) Series with Auxiliary Switch with pierced pin terminals -1RC (Note D) Series with Auxiliary Switch with cane hook terminals -3 Shunt -4 Relay (5 amps max coil rating) Multi-pole units with mixed construction, poles numbered left to right when viewed from terminal end (Note F). Note: Standard current ratings listed. For other ratings, please consult the factory. For addition of inertial delay, add an "F" to any delay number. Except 40, 50 & 60. *Instantaneous delays are not compatible with inrush enhancement options and are not recommended for general use. Decision Tables 63