LUGZXF62-1REC5-38557-30-G1 - Sensata Technologies/Airpax

IELR Series

Rail-Mount Magnetic Circuit Protectors

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Introduction

Poles

Specifications

Operating Characteristics

Delay Curves

Approvals

Decision Tables

INTRODUCTION

Designed specifically for the 35mm symmetrical DIN rail, Airpax

IALHR, IULHR and IELHR series Rail-Mount Magnetic circuit

protectors offer the advantages of quick and easy mounting or

removal which results in efficient and economical wiring, while

conserving space.

These circuit protectors are available in 1, 2, 3 and 4 pole

models, with a choice of handle colors with on/off and

international I/O markings. These protectors comply with

UL and CSA standards and meet IEC and VDE spacing

requirements. Typical applications include computers and

peripherals, telecommunications, medical equipment, machine

tools and process control instrumentation. They provide

the reliable performance associated with magnetic circuit

protection.

Mounting - These circuit protectors are designed to mount

on standard 35mm DIN rails, such as 35x7.5 or 35x15 per DIN

EN50022. Other specialty rails are available from suppliers that

provide a means of mounting non DIN mount components by

means of special captive jam nuts.

IELR Series

Rail-Mount Hydraulic Magnetic Circuit Protectors

IELR Series - Introduction http://airpax.sensata.com

161

.142 [3.6] DEEP (TYP.)

2 X 6-32 THREAD

M3 X 0.5-6H THREAD OPTIONAL

.183

[4.65]

1.437

[36.50]

2.059

[52.30]

DIM.ìAî

1.240

[31.50]

1.417

[35.99]

.689

[17.50]

1.680

[42.67] 1.122

[28.50]

.689

[17.50]

2.500

[63.50]

.138

[3.51]

1.929

[49.00]

.236

[5.99]

3.622

[92.00]

MOUNTING CLIP

OFF O

M5 SCREW

Single Pole

.142 [3.6] DEEP (TYP.)

4 X 6-32 THREAD

M3 X 0.5-6H THREAD OPTIONAL .748

[19.00]

.183

[4.65]

1.437

[36.50]

2.059

[52.30]

DIM.ìAî

1.240

[31.50]

1.417

[35.99]

.689

[17.50]

1.680

[42.67] 1.122

[28.50]

.689

[17.50]

2.500

[63.50]

.138

[3.51]

1.929

[49.00]

.236

[5.99]

3.622

[92.00]

USE TWO MOUNTING CLIPS

ALL MULTI-POLE CONFIGURATIONS

OFF O OFF O

IION

Two Pole

Note: Tolerance ± .015 [.38] unless noted.

Dimensions in brackets [ ] are millimeters.

MULTI-POLE DIMENSIONS - DIM “A”

1 pole .750 ± .02 [19.05 ± .5] max

2 pole 1.515 [38.48] max

3 pole 2.265 [57.53] max

4 pole 3.015 [76.58] max

Note: Dimension “A” varies with # of poles

IELR Series - Poles

IELR (Rail-Mount)

162

Series Trip

The most popular configuration for magnetic protectors is the

series trip where the sensing coil and contacts are in series with

the load being protected. The handle position conveniently

indicates circuit status. In addition to providing conventional

overcurrent protection, it’s simultaneously used as an on-off

switch.

Switch Only

In the event that over-current protection is not desired, the coil

mechanism can be deleted, providing an excellent low cost,

single or multi-pole power switch.

Insulation Resistance

100 megohm minimum at 500Vdc between all electrically isolated

terminals.

Dielectric Strength

3750Vac (3750V~) shall withstand AC voltages 50/60Hz for 60

seconds between all electrically isolated terminals.

Endurance

Circuit breakers shall operate a minimum of 10,000 operations;

6,000 with rated current and voltage and 4,000 with no load.

Operating Temperature

–40°C to +85°C.

IEC 144 Classification

Type handle spacings–IP40. Terminals–IP00.

Moisture Resistance

10 days, 95 percent relative humidity at 40°C in accordance with

IEC68-2-3, test C.

Salt Spray

Five percent solution at 35°C in accordance with IEC68-2-11, test

K, 48 hours.

Shock

50g, 11m sec, half sine with rated current, except no current with

handle down. Instantaneous units use 80 percent rated current.

Test in accordance with IEC68-2-27, test Ea. This assumes that

adequate end stops are used to prevent longitudinal movement

of the circuit protector.

Vibration

4g, 5–500Hz (maximum double amplitude displacement 1.5mm)

with rated current except no current with handle down.

Instantaneous units use 80 percent rated current, in accordance

with IEC68-2-6, test F, method A, one hour per plane. This

assumes that adequate end stops will be used to prevent

longitudinal movement of the circuit protector.

t=f (I)

Three Pole Schematic Diagram

LINE

LOAD

Series

Switch Only

IELR SPECIFICATIONS

IELR Series - Specications http://airpax.sensata.com

163

IELR OPERATING CHARACTERISTICS

Inrush Pulse Tolerance

Pulse tolerance is defined as a single pulse of half sine

wave 50/60Hz peak current amplitude of 8 milliseconds

duration that will not trip the circuit breaker.

PULSE TOLERANCES

Delay Pulse Tolerance

61, 62, 63 (.1 to 70 amps) 12 times (approx.) rated current

61F, 62F, 63F (.1 to 25 amps) 20 times (approx.) rated current

61F, 62F, 63F (25.1 to 70 amps) 18 times (approx.) rated current

PERCENTAGE OF RATED CURRENT VS TRIP TIME IN SECONDS AT +25°C

Delay 100% 125% (Note A) 150% 200% 400% 600% 800% 1000%

41 No Trip May trip .5 to 8 .15 to 1.9 .02 to 4 .006 to .25 .004 to .1 .004 to .05

42 No Trip May trip 5 to 70 2.2 to 25 .40 to 5 .012 to 2 .006 to .2 .006 to .15

43 No Trip May trip 35 to 350 12 to 120 1.5 to 20 .012 to 2.2 .01 to .22 .01 to .1

49 No Trip May trip .100 max. .050 max. .020 max. .020 max. .020 max. .020 max.

51 No Trip .5 to 6.5 .3 to 3 .1 to 1.2 .031 to .5 .011 to .25 .004 to .1 .004 to .08

52 No Trip 2 to 60 1.8 to 30 1 to 10 .15 to 2 .04 to 1 .008 to .5 .006 to .1

53 No Trip 80 to 700 40 to 400 15 to 150 2 to 20 .015 to 9 .015 to .55 .012 to .2

59 No Trip .120 max. .100 max. .050 max. .022 max. .017 max. .017 max. .017 max.

61 No Trip .7 to 12 .35 to 7 .130 to 3 .030 to 1 .015 to .3 .01 to .15 .008 to .1

62 No Trip 10 to 120 6 to 60 2 to 20 .2 to 3 .02 to 2 .015 to .8 .01 to .25

63 No Trip 50 to 700 30 to 400 10 to 150 1.5 to 20 .4 to 10 .013 to .85 .013 to .5

69 No Trip .120 max. .100 max. .050 max. .022 max. .017 max. .017 max. .017 max.

71 No Trip .44 to 10 .3 to 7 .1 to 3 .03 to 1 .012 to .3 .004 to .15 .004 to .1

72 No Trip 1.8 to 100 1.7 to 60 1 to 20 .15 to 3 .015 to 2 .008 to .79 .006 to .28

73 No Trip 50 to 600 30 to 400 10 to 150 1.8 to 20 .015 to 10 .015 to .88 .011 to .5

79 No Trip .120 max. .100 max. .050 max. .023 max. .016 max. .015 max. .015 max.

Notes: All trip times and trip currents are speciﬁed with the protector mounted in the normal vertical position at ambient temperature of 25 C.

Protectors do not carry current prior to application of overload.

A: 135% for delays 71, 72, 73 and 79.

APL/UPL - NOMINAL DCR / IMPEDANCE

Current

Ratings

(Amps)

Resistance (ohms) Impedance (ohms) Impedance (ohms)

DC Delays AC, 50/60Hz Delays AC, 400Hz Delays

51, 52, 53, 59 61, 62, 63, 69 41, 42, 43, 49

0.20 45.8 28.5 71.94

1.0 1.38 1.10 2.85

5.0 .371 .29 .76

10.0 .055 .051 .12

15.0 .017 .016 .032

20.0 .006 .006 .010

30.0 .003 .004 .006

50.0 .0019 .0018 .0019

60.0 .00157 .00134 —

70.0 .00147 .00133 —

Notes: DCR and impedance based on 100% rated current applied and

stabilized for a minimum of one hour. Tolerance .05-2.5 amperes ± 20%; 2.6-20

amperes ± 25%; 21-70 amperes ± 50%. Consult factory for special values and

for coil impedance of delays not shown.

IELR Series - Operating Characteristics

IELR (Rail-Mount)

164

MAY TRIP

900 1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

TIME IN SECONDS

0100

125

150 200 300 400 500 600 700 800

900 1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

TIME IN SECONDS

0100

125

150 200 300 400 500 600 700 800

MAY TRIP

900 1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

TIME IN SECONDS

0100

125

150 200 300 400 500 600 700 800

MAY TRIP

900 1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

TIME IN SECONDS

0100

125

150 200 300 400 500 600 700 800

MAY TRIP

DELAY 61

DELAY 62 DELAY 69

DELAY 63

400Hz, DC, 50/60Hz Delay Curves (typ)

A choice of delays is offered for DC, 50/60Hz, 400Hz, or combined

DC/50/60Hz applications. Delays 49, 59, 69 and 79 provide fast

acting, instantaneous tripping and are often used to protect

sensitive electronic equipment (not recommended where a

known inrush exists). Delays 41, 51, 61 and 71 have a short delay

for general purpose applications. Delays 42, 52, 62 and 72 are

long enough for most transformers and capacitor loads. Delays

43, 53, 63 and 73 are extra long for special motor applications.

50/60Hz Delay Curves (typ)

IELR DELAY CURVES

IELR Series - Delay Curves http://airpax.sensata.com

165

900 1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

TIME IN SECONDS

0100

125

150 200 300 400 500 600 700 800

MAY TRIP

900 1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

TIME IN SECONDS

0100

125

150 200 300 400 500 600 700 800

MAY TRIP

900 1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

TIME IN SECONDS

0100

125

150 200 300 400 500 600 700 800

MAY TRIP

900 1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

TIME IN SECONDS

0100

125

150 200 300 400 500 600 700 800

MAY TRIP

DELAY 51

DELAY 52

DELAY 53

DELAY 59

DC Delay Curves (typ)

IELR Series - Delay Curves

IELR (Rail-Mount)

166

900 1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

TIME IN SECONDS

0100

135

150 200 300 400 500 600 700 800

MAY TRIP

900 1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

TIME IN SECONDS

0100

135

150 200 300 400 500 600 700 800

MAY TRIP

900 1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

TIME IN SECONDS

0100

135

150 200 300 400 500 600 700 800

MAY TRIP

900 1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

TIME IN SECONDS

0100

135

150 200 300 400 500 600 700 800

MAY TRIP

DELAY 71

DC/50/60 Hz

Short Delay

DELAY 72

DC/50/60 Hz

Long Delay

DELAY 79

DC/50/50 Hz

135% Instant Trip

DELAY 73

DC/50/60 Hz

Motor Start Delay

DC/50/60Hz Delay Curves (typ)

(Multi-Frequency)

IELR Series - Delay Curves http://airpax.sensata.com

167

900 1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

TIME IN SECONDS

0100

125

150 200 300 400 500 600 700 800

900 1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

TIME IN SECONDS

0100

125

150 200 300 400 500 600 700 800

900 1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

TIME IN SECONDS

0100

125

150200 300 400 500 600 700 800

900 1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

TIME IN SECONDS

0100

125

150 200 300 400 500 600 700 800

DELAY 42 DELAY 49

DELAY 43

DELAY 41

MAY TRIP

400Hz Delay Curves (typ)

IELR Series - Delay Curves

IELR (Rail-Mount)

168

AGENCY APPROVALS

Voltage (Volts) Rated Current (Amps) Interrupting Capacity, Amps

Max Voltage Frequency (Hz) Phase Min Poles UL/CSA VDE UL1077 & CSA VDE

80 DC — 1 .05 to 50 .10 - 50 u2, 1000 4000

80 DC — 1 .05 to 100 — u2, 5000 —

250 50/60 1 & 3 1 .05 to 50 .10 - 50 3500 2000

250 50/60 1 & 3 1 .05 to 70 — 2000 —

250 50/60 1 & 3 1 .05 to 50 — 5000 (1) —

250 50/60 1 & 3 1 .05 to 70 — 5000 (1) —

277 50/60 1 1 .05 to 50 — 2000 —

277 50/60 1 1 .05 to 50 — 5000 (1) —

240/415 50/60 1 & 3 2 .05 to 50 .10 - 30 2000 2000

240/415 50/60 1 & 3 2 .05 to 50 — 5000 (1) —

277/480 50/60 3 2 .05 to 30 — 2000 —

250 400 1 & 3 1 .05 to 50 — 1750 —

Note: (1) with 125A max series fuse.

How to Order

The ordering code for IELR circuit protectors may be determined by

following the steps in the decision tables shown here.

The coding given permits a self-assigning part number, but with

limitations. Using the illustrated coding system, it will

automatically be assumed that all poles are identical. When all

poles of a multi-pole protector are not identical, please contact

an Airpax sales representative or the factory for a part number.

One great virtue of magnetic circuit protectors is their adaptability

to complex circuits. Thus, variations from pole to pole can

become the rule rather than the exception. Descriptive drawings

are recommended to avoid confusion.

When specifying a protector for AC motor start or high inrush

applications, it is helpful to know the peak amplitude and surge

duration for proper protector selection.

IELR DECISION TABLES

Notes:

When poles are not identical, each pole is to be described and a

special Airpax number will be assigned.

Thomas & Betts (T&B) Narrow Tongue Lug P/N 54108NT is

recommended for units rated above 50A. The T&B lug or an

equivalent must be used on units rated 70A and above.

IELR Series - Approvals & Decision Tables http://airpax.sensata.com

169

Second Decision

Single pole

Two pole

Three pole

Four pole

111

1111

Poles

Conguration

Fourth Decision

Frequency & Delay

Switch Only

400Hz short delay

400Hz long delay

400Hz motor start

400Hz 150% instant trip

DC short delay

DC long delay

DC motor start

DC 125% instant trip

50/60Hz short delay

50/60Hz long delay

50/60Hz motor start

50/60Hz 125% instant trip

DC/50/60 Hz short delay

DC/50/60 Hz long delay

DC/50/60 Hz motor start

DC/50/60 Hz 135% instant trip

For addition of inertial delay, add an “F” to any

delay numeral.

-41

-42

-43

-49

-51

-52

-53

-59

-61

-62

-63

-69

-71

-72

-73

-79

Sixth Decision

-A

-C

-D

Standard hardware.

No designation necessary.

Metric thread mounting

inserts

277V (50/60Hz only)

240/415V (50/60Hz only)

Fifth Decision

Rated Current

.100

.250

.500

.750

1.0

2.5

5.0

7.5

Use three numbers to print required value

between .050 amperes minimum and

70.0 amperes maximum.

Standard ratings listed. For other ratings,

please contact the factory.

10.0

15.0

20.0

30.0

35.0

40.0

50.0

60.0

70.0

Third Decision

-0

-1

Switch only

(Omit 4th decision)

Series

Example:

The shaded areas denote VDE Approval options. This

approval requires the addition of a V at the end of the

part number. The V will be added to any part number

formed entirely from shaded decisions. If non-shaded

areas are selected, the unit will not be VDE approved,

but other approvals still apply.

V = VDE Approved

Seventh Decision

Handle Color Selection

-00

-10

-20

-30

-40

-60

-90

-01

-11

-21

-31

-41

-61

-91

(Std.)

Black

Yellow

Red

Blue

Green

Orange

White

Black with white markings

Yellow with black markings

Red with white markings

Blue with white markings

Green with white markings

Orange with black markings

White with black markings

Unmarked

Marked (Combination On - Off / I-O)

First Decision

Type

IALHR

IULHR

IELHR

IALR

IULR

IELR

IMLR

IMLHR

One handle per pole

(multi-pole only)

One handle per pole

(multi-pole only)

UL Recognized, CSA Certied

and VDE Approved ratings

One handle per pole

(multi-pole only)

UL Recognized, CSA Certied

and VDE Approved ratings

One handle per unit

UL Recognized

and CSA Certied ratings

One handle per unit

UL Recognized, CSA Certied

and VDE Approved ratings

Mid-trip indication,

One handle per unit

Mid-trip indication,

One handle per pole

Optional

1 2 3 4 5 7

IELR 1 - 1 - 61 - 20.0 - 01 - V

IELR (Rail-Mount)

Protection Catalog, Literature # 2455005000, printed in the USA, May 9th, 2013.

Important Notice: Sensata Technologies reserves the right to make changes to, or to discontinue, any product or service identiﬁed in

this publication without notice. Before placing orders, users should obtain the latest version of the relevant information to verify that

the information being relied upon is current.

Sensata Technologies assumes no responsibility for customers’ product designs or applications. Users must determine the suitability

of the Sensata device described in this publication for their application, including the level of reliability required. Many factors beyond

Sensata’s control can affect the use and performance of a Sensata product in a particular application, including the conditions under

which the product is used and the time and environmental conditions in which the product is expected to perform. As these factors

are uniquely within the user’s knowledge and control, it is essential that the user evaluate the Sensata product to determine whether it

is ﬁt for a particular purpose and suitable for the user’s application.

Sensata Technologies products are sold subject to Sensata’s Terms and Conditions of Sale which can be found at:

www.sensata.com/terms.htm

http://airpax.sensata.com/

Sensata Technologies Inc.

529 Pleasant Street

Attleboro, MA 02703, USA

Phone: +1 508-236-3287