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2 | B-Series Circuit Breaker - General Specifications

Mechanical

Physical

Environmental

Electrical

Maximum Voltage

Current Ratings

Standard Voltage Coils

Auxiliary Switch Rating

Insulation Resistance

Dielectric Strength

Resistance, Impedance

Pulse Tolerance Curves

Endurance

Trip Free

Trip Indication

Number of Poles

Internal Circuit Config.

Weight

Standard Colors

Shock

Vibration

Moisture Resistance

Salt Spray

Thermal Shock

Operating Temperature

Designed and tested in accordance with requirements of

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

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 ratings

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).

VDE-1.0 Amp - 125VAC.

Minimum of 100 Megohms at 500

VDC.

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.

Values from Line to Load Terminal -

based on Series Trip Circuit Breaker.

6,000 ON-OFF operations @ 6 per

minute; with rated Current and

Voltage. Additional 4,000 ON-OFF

mechanical

All B-Series Circuit Breakers will trip

on overload, even when Handle is

forcibly held in the ON position.

The operating Handle moves

positively to the OFF position when an

overload causes the breaker to trip.

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 current

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.

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.

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.

Method 106D; ten 24-hour cycles @ +

25°C to +65°C, 80-98% RH.56 days @

+85°C, 85% RH.

Method 101, Condition A (90-95% RH @

5% NaCl Solution, 96 hrs).

Method 107D, Condition A (Five cycles

@ -55°C to +25°C to +85°C to +25°C).

-40°C to +85°C.

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

RESISTANCE PER POLE VALUES

from Line to Load Terminals

(Values Based on Series Trip Circuit Breaker)