ATR20-A-63S-WB2-B-20.0A-2 - AIRPAX

Trip Time (sec)

ORDERING EXAMPLE:

2 Mounting Bushing

A Plastic 3/8”-27

C Plastic M11

W Wing Clip

7 Mounting Nut

N None or Wing Clip

A Plastic Knurled

B Metal Knurled

C Metal Hex Nut

D Sealing Knurled Boot

9 Indicator Plate

0 None

1 Embossed Aluminium

2 Silver Letters on Black

4 Terminal Options

S Straight

L 90° Bend, Left Side

R 90° Bend, Right Side

5 Button Color

B Black

WB White with

trip indication

8 Std.Current Rating

2.5, 3.0, 4.0, 5.0, 6.0,

7.0, 8.0, 10.0, 12.0,

15.0, 16.0, 20.0

6 Button Marking

0 None

1 White, Vertical

2 Black, Vertical

3 White, Horizontal

4 Black, Horizontal

ATR20 - C - 63 S - B 1 - A - 7.0A - 2

Product Type

The ATR20 circuit protector is a single pole, thermally operated,

snap-action overload protector, with a manual, push-to-reset

mechanism providing reliable ‘trip-free’ operation on overloads

and short-circuits within the maximum capacity specified. A high

contact force is maintained until the contacts break due to

overload through the snap-action bimetal disc.

OPERATION:

The entire mechanism of the circuit protector is based on the

use of a snap-action cantilevered, thermo-bimetal disc profile

with silver alloy contacts, designed to open in the event of a

current flow in excess of the rated current, according to the

time/current characteristics of the device. The contacts open

and close with a positive snap action and the tripped state is

clearly indicated by the extended projection of the reset button.

TIME & CURRENT CHARACTERISTICS:

The standard characteristic is valid for ambient temperature

of 25°C. If the device is to be used in an ambient temperature

other than 25°C, allowance must be made when selecting the

current rating according to the following guidelines:

Example:

Normal continuous current 5.0A

Ambient temperature 40°C

Multiplication factor 1.1

Selected rated current at 40°C

ambient temperature 5.0 x 1.1 = 5.5

Select 6.0A (nearest)

Operating Characteristics:

Technical Data

Function SPST

Standard Ratings (Amps) 2.5, 3, 4, 5, 6, 7, 8, 10, 12, 15, 16, 20

AC - inductive DC - resistive

Rated Voltage 125 / 250 VAC 50/60 Hz, 50VDC

Method of Tripping Thermal TO, Cycling trip-free

Type of Actuation Reset button, type “R”

Initial Insulation Resistance >100MΩ (DC 500V)

Dielectric Strength 1500 VAC for 1 minute

Housing Material Thermoplastic / Thermoset

Button Material Thermoset

Contact Material Silver Alloy

Terminal Material Copper Alloy

Resettable Overload Capacity 10 X Rated Current

Overload Capacity 2X Rated Current for min. 50 switching cycles,

per UL 1077

Rated Conditional Short Circuit 1000A 125 / 250VAC, 50VDC,

Current Capacity Inc1 (PC1) SC:1kA, C1, 125 / 250VAC, 50VDC,

Ref. EN 60934 Ref. CSA 22.2 No. 235-04, UL 1077

Weight Approximately 17g

Applicable Approvals UL 1077, CSA 22.2 No. 235-04, TÜV EN 60934

Supplementary Circuit Protector

ATR20

CURRENT (%)

0.1

100

1000

0 100

135

200 300 400 500 600 700 800 900 1000

MULTIPLIER

Ambient

temp.

(C°)

Ambient

temp.

(C°)

-20°C -10°C 0°C 10°C 25°C 30°C 35°C

2.5A

3A to 4A

0.58 0.6 0.7 0.8 1 1

0.8 0.85 0.9 0.9 1 1 1.1

-20°C -10°C 0°C 10°C 25°C 40°C 50°C 60°C

5A to 20A 0.8 0.85 0.88 0.9 1 1.1 1.3 1.4

Tripping Current Code (TC) TC 2, ref. CSA 22.2 No. 235-04

Overload Rating OL0 240VAC, 50VDC,

ref. CSA 22.2 No. 235-04

3 Terminal Size

63 .250

Application Type General Industrial Ref. CSA 22.2 No. 235-04

Impulse Withstand Voltage 2.5kV Ref. EN60934

Contact Gap Micro Disconnection (µ) Ref. EN60934

Rated Short Circuit Capacity Icn Min. 6 X Rated Current (6 X In), 250VAC inductive

Ref. EN 60934 Min. 4 X Rated Current (4 X In), 50VDC resistive

250V~ 50V-

15A

3/8" - 27UNS

RIGHT SIDE

LEFT SIDE

Pitch

ØM11X1

Panel cutout

C. M 11

W. WING CLIP

MOUNTING OPTIONS

Panel cutout

A. 3/8"- 27 UNS

TERMINAL OPTIONS

L. 90° BEND,

S. STRAIGHT R. 90° BEND,

LOADLINE

ATR20

LOADLINE

ATR20

LOADLINE

ATR20

250V~ 50V-

15A

250V~ 50V-

15A

LOADLINE LOADLINE

Panel cutout

.236

6.0

.118

.374

9.5

.472

.378

9.6

-.004

-0.1

( )

.350

8.9

.295

7.5

.118

.472

.374

9.5

.906

.461

11.7

.689

17.5

.248 x .031

6.3 x 0.8

1.161

29.5

.031

0.8

+.008

+0.2

( )

.441

11.2

.394

.031

0.8

+.004

+0.1

( )

.626

15.9

.547

13.9

.248 x .031

6.3 x 0.8

.689

17.5

.461

11.7

.906

.472

.118

.295

7.5

.390

9.9

.571

14.5

.571

14.5

.618

15.7

.433

.976

24.8

.531

13.5

.610

15.5 1.161

29.5

.343

8.7

.102

2.6

.157

.031

0.8 .248

6.3

.689

17.5

.343

8.7

.102

2.6

.157

.031

0.8

.248

6.3 .689

17.5

.031

0.8

.248 x .031

6.3 x 0.8

.689

17.5

.461

11.7

Pitch

KNURLED NUT

(P/N 053-200-0001)

KNURLED NUT

(P/N 053-200-0002)

PLASTIC METAL METAL

HEXAGONAL NUT

(P/N 053-200-0003)

MOUNTING NUTS

HORIZONTAL

VERTICAL

BUTTON PRINTING

DUST COVER METAL

KNURLED NUT

(053-200-0005)

ACCESSORIES

PLATE

INDICATOR

Airpax Corporation

807 Woods Road

Cambridge, Maryland 21613 USA

tel: 410.228.1500

fax: 410.228.3456

email: infoppp@airpax.net

TYPES:

1. Embossed (Aluminium)

(P/N 053-200-0004)

2. Silver Letters on Black

(P/N 053-200-0007)

Panel

Cutout

Positions

Panel

Cutout

Positions

Tripped condition

Non-tripped condition

Tripped condition

Non-tripped

condition

Tripped condition

Non-tripped

condition

-.004

-0.1

( )

+.008

+0.2

( )

+.004

+0.1

( )