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2 | B-Series Circuit Breaker - General Specifications

*Manufacturer reserves the right to change product specification without prior notice.

Mechanical

Physical

Environmental

Electrical

Pulse Tolerance Curves

Designed and tested in accordance with requirements of

specification MIL-PRF-55629 & MIL-STD-202 as follows:

RESISTANCE PER POLE VALUES

from Line to Load Terminals

(Values Based on Series Trip Circuit Breaker)

Maximum Voltage

277VAC 50/60 Hz, 80VDC

Current Ratings

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.

Standard Voltage Coils DC - 6V, 12V; AC - 120V, other

ratings available, see ordering

scheme.

Auxiliary Switch Rating SPDT; 10.1 AMPS - 250VAC,1.0A

65 VDC or 0.5A 80 VDC, 0.1 Amps

- 125VAC (with gold contacts).

VDE-1.0 Amp - 125VAC.

Insulation Resistance

Minimum of 100 Megohms at 500

VDC.

Dielectric Strength

UL, CSA-1500 V 50/60 Hz for one

minute between all electrically

isolated terminals. B-Series circuit

breakers comply with the 8mm

spacing and 3750V 50/60 Hz

dielectric requirements from

hazardous voltage to operator

accessible surfaces, between

adjacent poles and from main

circuits to auxiliary circuits per

Publications EN 60950 and VDE

0805.

Resistance, Impedance Values from Line to Load Terminal

- based on Series Trip Circuit

Breaker.

Endurance

10,000 ON-OFF operations @ 6 per

minute; with rated Current and

Voltage.

Trip Free

All B-Series Circuit Breakers will

trip on overload, even when Handle

is forcibly held in the ON position.

Trip Indication

The operating Handle moves

positively to the OFF position when

an overload causes the breaker to

trip.

Number of Poles

1 - 6 poles at 30 Amps or less. 1

and 2 poles at 31 Amps thru 50

Amps.

Internal Circuit Config. Series, (with or without auxiliary

switch), Shunt and Relay with

current or voltage trip coils, Dual

Coil, Switch Only (with or without

auxiliary switch).

Weight

Approximately 65 grams/pole.

(Approximately 2.32 ounces/pole.)

Standard Colors

Housing- Black; Actuator - See

Ordering Scheme.

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%

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