MIL-DTL-17361G(SH)
APPENDIX A
b.
It was available in dual-ratings (60 Hz AC and 250 VDC) and separate 400 Hz AC ratings.
c.
There are three adjustable instantaneous pickup setting dials on the front of the circuit breaker (one on each
pole).
d. The circuit breaker was delivered with the trip unit amp rating specified by the user. The trip unit is not
adjustable.
e. For some applications, fuse units are used in conjunction with the circuit breaker. The fuse unit is a
separate piece that mounts below the circuit breaker on a common mounting base/block; it plugs into the mounting
base/block but does not plug into the circuit breaker.
A.3.2.1.1.2 AQB-A102 (electronic). Note the following:
a. The AQB-A102 has gone through three designs: Type E, Type E1, and Type E2. The Type E is obsolete.
Although there is no new production of the Type E, the stock system or other sources may still have assets.
b. The label plate for the Type E2 states "AQB-A102 E2"; the Type E and Type E1 label plates only state
"AQB-A102".
c.
All designs have separate 60 Hz and 400 Hz AC ratings; there are no DC ratings.
d.
All designs use root-mean-square (rms) current sensing.
e. Both designs have field adjustable settings for continuous current, instantaneous pickup, short-time delay
pickup, and short-time delay time band. Long-time delay features are fixed on both designs. See MIL-DTL-
17361/4 for complete details on available settings.
f. Type E has field adjustable settings for instantaneous pickup and short-time delay pickup only. Type E1
and Type E2 have field adjustable settings for continuous current, instantaneous pickup, short-time delay pickup,
and short-time delay time band. Long-time delay features are fixed on all designs.
g. Full range of continuous current settings (15 amps to 100 amps) can be found on the CCS dial of Type E1
and Type E2. However, there is one notable difference between CCS dials: the Type E1 includes a 75-amp setting
but does not include an 80-amp setting while the Type E2 includes an 80-amp setting but does not include a 75-amp
setting.
h. For some applications, fuse units are used in conjunction with the circuit breaker. The fuse unit is a
separate piece that mounts below the circuit breaker on a common mounting base/block; it plugs into the mounting
base/block but does not plug into the circuit breaker.
A.3.2.1.2 Cutler-Hammer.
A.3.2.1.2.1 AQB-A101 (thermal magnetic). Note the following:
a.
Cutler-Hammer continues to manufacture the AQB-A101.
b.
It is available in dual-ratings (60 Hz AC and 250 VDC) and separate 400 Hz AC ratings.
c.
There are three adjustable instantaneous pickup setting dials on the front of the circuit breaker (one on each
pole).
d. The circuit breaker is delivered with the trip unit amp rating specified by the user. The trip unit is not
adjustable.
e. For some applications, fuse units are used in conjunction with the circuit breaker. The fuse unit is a
separate piece that mounts below the circuit breaker on a common mounting base/block; it plugs into the mounting
base/block but does not plug into the circuit breaker.
A.3.2.1.2.2 AQB-A103 (electronic). Note the following:
a. The AQB-A103 has gone through two designs: AQB-A103 and AQB-A103RMS. Cutler-Hammer
continues to manufacture the AQB-A103RMS but the AQB-A103 is obsolete. Although there is no new production
of the AQB-A103, the stock system or other sources may still have assets.
b.
The label plate states "AQB-A103" or "AQB-A103RMS" as applicable.
c.
Both designs have separate 60 Hz and 400 Hz AC ratings; there are no DC ratings.
d.
The AQB-A103 uses peak current sensing and the AQB-A103RMS has rms current sensing.
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