IAG/IUG/IEG/CEG/LEG Series
Magnetic Circuit Protectors
Introduction
Poles
Handles
Configurations
Operating Characteristics
Delay Curves
Specifications
Decision Tables
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IAG/IUG/IEG/CEG/LEG Series
Hydraulic Magnetic Circuit Protectors
INTRODUCTION
The Airpax™ IAG/IUG/IEG/CEG/LEG magnetic circuit protectors
provide low-cost power switching, reliable circuit protection
and accurate circuit control for equipment in the international
marketplace.
IEG models meet IEC spacing requirements which is mandatory
for equipment that must comply with IEC specifications 601 and
950 and VDE specifications 0804 and 0805. In addition, they are
UL Recognized as supplementary protectors per UL STD. 1077,
CSA Certified as supplementary protectors per CSA C22.2–No.
235, VDE Approved to VDE 0642 (EN60934), CCC Approved and CE
Compliant. IAG models are for those applications where the unit’s
inherent attributes are desired, but compliance with the various
standards is not required.
Designed using the latest in sensitive hydraulic magnetic
technology, the IAG/IUG/IEG/CEG/LEG line adapts itself to many
applications and environments. They’re ideal for data processing
and business machines, medical instrumentation, broadcast
equipment, vending and amusement machines, military
applications and wherever precision operation is required.
Temperature differences which affect fuses and other thermal
devices are not a concern.
One important feature of this protector line is a “trip free” action,
which means the circuit will trip in the presence of an overload
even though the handle is held in the ON position. The delay
mechanism senses the fault and the contacts open.
The IAG/IUG/IEG/CEG/LEG is available in a wide variety of
configurations including series, series with auxiliary switch,
shunt and relay with a choice of delays and ratings in either
DC, 50/60Hz or 400Hz versions. Handles come in seven different
colors and international markings are standard. Single or multi-
pole versions are available, with a variety of pole arrangements
to meet your specifications. Four pole models require a double
toggle handle. Units with a handle per pole come in one through
six pole assemblies.
99
IAG Series - Introduction
http://airpax.sensata.com
SINGLE POLE CIRCUIT PROTECTOR
Single Pole Mounting Detail
+.010
-.000
.590
[15.00]
MAX.
.625
+.25
-.00
2X 6 – 32 THREAD
.140 [3.56] DEEP
M3 ISO THD. OPTIONAL
15.88
2.000
[50.80]
1.220
[31.00]
O
N
O
F
F
.1.660
[42.16]
1.660
[42.16]
1.050
[26.67]
2X
.750
[19.05]
.168
[4.27]
0.156
[3.96]
.
230
[5.84]
1.530
[38.86]
Note: Tolerance ±.015 [.38] unless noted.
Dimensions in brackets [ ] are millimeters.
LEG Type Units Require Screw Terminals
IAG Series - Poles
100
IAG Series
MULTI-POLE CIRCUIT PROTECTORS
(IAG/IUG/IEG/CEG/LEG)
Two Pole Protectors
An assembly consisting of two single pole units, having their trip
mechanisms internally coupled and with a single toggle handle,
forms the IEG11 with quick-connect D.I.N.-style terminals.
Individual poles may differ in ratings, delays and internal
connections. An auxiliary switch may be included in either or
both poles, allowing you to mix SELV and hazardous voltages.
Rugged screw-type terminals can be provided, in which case the
designation would be IEG66. The IEGH offers a toggle handle for
each pole. LEG type units are avavailable only in one or two pole
configurations.
Three Pole and Four Pole Protectors
The three pole construction consists of three single pole units
assembled with an internal mechanical interlock which actuates
all units simultaneously. A single toggle handle operates all three
poles for quick and convenient control, or if preferred, a handle
per pole is available. The four pole construction consists of four
single pole units assembled with an internal mechanical
interlock which actuates all units simultaneously. A double
toggle handle operates all four poles. The individual poles need
not have identical characteristics and any series trip pole may
have an auxiliary switch. If screw-type terminals are required,
the breaker designation will be IEG666 for a three pole version
and IEG6666 for a four pole version.
Protector poles are numbered consecutively when viewed from
the terminal side, with the ON position up, starting with Pole #1
on the left side and proceeding to the right.
IAG/IUG/IEG/CEG/LEG Multi-Pole Circuit Breakers
IAG/IUG/IEG/CEG/LEG
1.687
[42.85]
.240
[6.10]
ON
32º
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
Two Pole*
Three Pole*
Four Pole*
32º
OFF
2.075
[52.71]
MAX.
.690
[17.53]
1.515
[38.48]
MAX.
(Optional: Handle may be
located in Pole 1 instead
of Pole 2)
2.265
[57.53]
MAX.
3.015
[76.58]
MAX.
LEG Type Units Require
Screw Terminals
.
230
[5.84]
Two Pole*
2X
.625
-.000
[
15.88
+.25
[
-.00
+.010
Three Pole*
Four Pole*
1.530
[38.86]
1.660
[42.17]
1.050
[26.68]
.750
.750
.750
[19.05] [19.05] [19.05]
4X
.156
[3.96]
.750
[19.05]
.750
.750
[19.05] [19.05]
Panel Mounting Detail: Tolerance for Mtg. ±.005 [.13] unless noted.
*See Single Pole Mounting Detail for hole sizes and locations. LEG type units are
only available in one or two poles.
Note: Tolerance ± .015 [.38] unless noted. Dimensions in brackets [ ] are millimeters.
101
IAG Series - Poles
http://airpax.sensata.com
MULTI-POLE CIRCUIT PROTECTORS
(IAGH/IUGH/IEGH/CEGH/LEGH)
The IAGH/IUGH/IEGH/CEGH/LEGH two, three and four pole
models are available with a handle per pole. LEGH type units
are available only in two pole models.
4X
2X
IAGH/IUGH/IEGH/CEGH/LEGH Protectors
2X
1.687
[42.85]
.240
[6.10]
ON
32º
32º
OFF
2.000
[50.80]
2.000
[50.80]
.590
[15.00]
MAX.
6 – 32 THREAD
.140 [3.56] DEEP
M3 ISO THD. OPTIONAL
.590
[15.00]
MAX.
1.660
[42.16]
1.660
[42.16]
4X 6 – 32 THREAD
.140 [3.56] DEEP
M3 ISO THD. OPTIONAL
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
1.220
[31.00]
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
1.220
.168
[31.00]
[4.27]
.168
[4.27]
1.515
[38.48]
MAX.
1.515
[38.48]
MAX.
2.265
[57.53]
MAX.
2.265
[57.53]
MAX.
3.015
[76.58]
MAX.
3.015
[76.58]
MAX.
2.075
[52.70]
MAX.
.690
[17.53]
LEG (Requires Screw Terminals)
.
230
[5.84]
Two Pole
2X
+.010
-.000
Three Pole*
Four Pole*
.625
2X
1.530
[38.86]
.625
1.660
+.25
[
-.00
42.16]
1.050
15.87
[26.67]
1.660
[42.16]
1.050
4X .156
[26.67
[3.96] ]
4X
.156
[3.96]
.750
[19.05]
.750
[19.05]
.750
.750
[19.05] [19.05]
.750
.750
.750
[19.05] [19.05] [19.05]
+.25
-.00
15.87
+.010
-.000
.750
.750
.750
.750
Two Pole Mounting Detail for hole
19.05]
and locations.
*See
.750
[19.05] [
sizes
[19.05]
[19.05] [19.05]
LEG/LEGH Barriers (required)
In order to meet UL listing requirements, the LEG/LEGH two
pole model requires barriers. Available with a standard
straight barrier or an optional “Z” type barrier.
Standard Barrier
Panel Mounting Detail: Tolerance for Mtg. ±.005 [.13] unless noted.
NOTE: We recommend machining slots into your panel for 2 or more
poles. This eliminates the need to dissemble/reassemble the handle
ties to be able to insert the handles thru indvidiually drilled holes. LEG
type units are only available in one or two poles.
Optional “Z” Barrier
Note: Tolerance ± .015 [.38] unless noted. Dimensions in brackets [ ] are millimeters.
IAG Series - Poles
102
IAG Series
Programming Basics
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