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B-Series – General Specifications
Electrical
Mechanical
Maximum Voltage
Current Ratings
Standard Voltage Coils
Auxiliary Switch Rating
277VAC 50/60 Hz, 80VDC
Standard current coils: 0.100, 0.250,
0.500, 0.750, 1.00, 2.50, 5.00, 7.50,
10.0, 15.0, 20.0, 25.0, 30.0, 35.0,
40.0 and 50.0 amps. Other ratings
available, see ordering scheme.
DC - 6V, 12V; AC - 120V, other rat-
ings available, see ordering scheme.
SPDT; 10.1 AMPS - 250VAC,1.0A
65 VDC or 0.5A 80 VDC, 0.1 Amps -
125VAC (with gold contacts).
Endurance
Trip Free
Trip Indication
Physical
10,000 ON-OFF operations @ 6 per
minute; with rated Current and
Voltage.
All B-Series Circuit Breakers will trip
on overload, even when Handle is
forcibly held in the ON position.
The operating Handle moves posi-
tively to the OFF position when an
overload causes the breaker to trip.
VDE-1.0 Amp - 125VAC.
Insulation Resistance
Dielectric Strength
Resistance, Impedance
Minimum of 100 Megohms at 500
VDC.
UL, CSA - 1500 V 50/60 Hz for one
minute between all electrically isolat-
ed terminals. B-Series circuit break-
ers comply with the 8mm spacing
and 3750V 50/60 Hz dielectric
requirements from hazardous volt-
age to operator accessible surfaces,
between adjacent poles and from
main circuits to auxiliary circuits per
Publications EN 60950 and VDE
0805.
Values from Line to Load Terminal -
Number of Poles
Internal Circuit Config.
Weight
Standard Colors
Environmental
1 - 6 poles at 30 Amps or less. 1
and 2 poles at 31 Amps thru 50
Amps.
Series, (with or without auxiliary
switch), Shunt and Relay with cur-
rent or voltage trip coils, Dual Coil,
Switch Only (with or without auxiliary
switch).
Approximately 65 grams/pole.
(Approximately 2.32 ounces/pole.)
Housing- Black; Actuator - See
Ordering Scheme.
based on Series Trip Circuit Breaker.
Designed and tested in accordance with requirements of specifi-
cation MIL-PRF- 55629 and MIL-STD-202 as follows:
Shock Withstands 100 Gs, 6ms, sawtooth
while carrying rated current per
Method 213, Test Condition "I".
Instantaneous and ultra-short curves
tested @ 90% of rated current.
Vibration Withstands 0.060" excursion from
10-55 Hz, and 10 Gs 55-500 Hz, at
rated current per Method 204C,
Test Condition A. Instantaneous and
ultrashort curves tested at 90% of
rated current.
Moisture Resistance Method 106D, i.e., ten 24-hour
cycles @ + 25°C to +65°C, 80-98%
RH.
Salt Spray Method 101, Condition A (90-95%
Pulse Tolerance Curves
60
RH @ 5% NaCl Solution, 96 hrs).
Thermal Shock Method 107D, Condition A (Five
cycles @ -55°C to +25°C to +85°C
to +25°C).
Operating Temperature -40° C to +85° C
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