PAB2-Y3-4 EATON HEINEMANN, PAB2-Y3-4 Datasheet - Page 3

• Manufacturer Part Number: PAB2-Y3-4
• Description: CIRCUIT BREAKER, HYD-MAG, 2P, 250V, 25A
• Manufacturer: EATON HEINEMANN
• Series: PROPAKr

Specifications of PAB2-Y3-4

• Input Voltage Vac: 250V
• No. Of Poles: 2
• Current Rating: 25A
• Interrupting Capacity: 1kA
• Dielectric Strength: 2kV
• Trip Time: 0.1s
• Voltage Rating Vdc: 50V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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Contents
History . . . . . . . . . . . . . . . . . 3
Application Information . . 4 – 5
Technical Data . . . . . . . . . 6 – 9
Product Families . . . . . 10 – 13
Frame Information . . . . 14 – 35
Special Applications . . .34 – 35
KD Series . . . . . . . . . . . 14
PROPAK Series . . . . . . . 15
J Series . . . . . . . . .16 – 17
SPHM Series . . . . . 18 – 19
AMR Series . . . . . . 20 – 23
C Series . . . . . . . . . 24 – 25
GH Series . . . . . . . 26 – 27
AM1P Series . . . . . 28 – 29
GJ Series . . . . . . . .30 – 31
GJ1P Series . . . . . .32 – 33
1.
History
In 1888, George Heinemann
founded Heinemann Electric,
one of the first electrical con-
tracting companies in the
nation. If you lived in the
Philadelphia area and you need-
ed repairs on electric lights, you
called Heinemann.
In 1915, the Heinemann
Electric company withdrew
from the contracting business
and concentrated on research-
ing electrical protective devices.
In 1927, Heinemann developed
an automatic protective device
called a circuit breaker, and in
1930, Heinemann produced the
first magnetic circuit breaker.
Until then, circuit breakers
depended on the heat caused
by an electrical overload to trip
the circuit open. Too often,
breakers tripped unnecessarily,
such as on a hot day or when
installed near heat-generating
machinery. A magnetic breaker
trips when the magnetic field
within a breaker increases due
to increased current flow
caused by the overload. Heat
plays no part in this operation,
putting an end to heat-induced
nuisance tripping.
First Magnetic Circuit Breaker
Design Patent
Years of
During the early 1940s,
Heinemann circuit breakers
went to war. Widespread use
of electronic equipment in
World War II, such as radio and
radar, led to the installation of
Heinemann circuit breakers in
every kind of fighting ship from
PT boats to battleships, with
expanding use to airplanes,
radar stations and communica-
tion centers.
This led to Heinemann’s
advance into the growing indus-
trial and consumer electronics
market. Heinemann established
foreign affiliates to support the
demands and progression into
the global market.
Today
Heinemann remains the
leading manufacturer of OEM
circuit breakers, and as part
of the Eaton family of brands,
Heinemann shares rich history
in circuit protection technology.
As Heinemann developed
the first hydraulic-magnetic
circuit breaker in 1932, Eaton’s
Cutler-Hammer brand devel-
oped the first molded case
circuit breaker in 1928.
Over 100
Excellence
EATON CORPORATION History/Today
Today, we’ve combined
Heinemann and Cutler-Hammer
technologies to give customers
the best protective solutions
available in the world from 12
to 38,000 volts. Heinemann
offers product designers the
broadest ranges of hydraulic
magnetic circuit breakers from
0.1 to 1200 amperes.
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