Supplementary Circuit Protector ATR20 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 25C. If the device is to be used in an ambient temperature other than 25C, allowance must be made when selecting the current rating according to the following guidelines: Ambient temp. (C) MULTIPLIER -20C -10C 0C 10C 25C 2.5A 0.58 0.6 0.7 0.8 1 1 3A to 4A 0.8 0.85 0.9 0.9 1 1 Ambient temp. (C) -20C -10C 0C 10C 0.88 0.9 30C 35C 1.1 25C 40C 50C 60C MULTIPLIER 5A to 20A 0.8 0.85 1 1.1 Example: Normal continuous current Ambient temperature Multiplication factor Selected rated current at 40C ambient temperature Select 1.3 1.4 5.0A 40C 1.1 5.0 x 1.1 = 5.5 6.0A (nearest) Operating Characteristics: Technical Data Application Type Function General Industrial Ref. CSA 22.2 No. 235-04 SPST Standard Ratings (Amps) 2.5, 3, 4, 5, 6, 7, 8, 10, 12, 15, 16, 20 AC - inductive DC - resistive Rated Voltage Method of Tripping 125 / 250 VAC 50/60 Hz, 50VDC Thermal TO, Cycling trip-free Type of Actuation Reset button, type "R" Initial Insulation Resistance >100M (DC 500V) Dielectric Strength 1500 VAC for 1 minute Impulse Withstand Voltage 2.5kV Ref. EN60934 Contact Gap Housing Material Button Material Micro Disconnection () Ref. EN60934 Thermoplastic / Thermoset 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 Short Circuit Capacity Icn Ref. EN 60934 Min. 6 X Rated Current (6 X In), 250VAC inductive Min. 4 X Rated Current (4 X In), 50VDC resistive Rated Conditional Short Circuit Current Capacity Inc1 (PC1) Ref. EN 60934 1000A 125 / 250VAC, 50VDC, SC:1kA, C1, 125 / 250VAC, 50VDC, Ref. CSA 22.2 No. 235-04, UL 1077 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 Weight Approximately 17g Applicable Approvals UL 1077, CSA 22.2 No. 235-04, TUV EN 60934 ORDERING EXAMPLE: 1000 ATR20 - C - 63 S - B 1 - A - 7.0A - 2 Product Type Trip Time (sec) 100 10 2 Mounting Bushing 4 Terminal Options 6 Button Marking A Plastic 3/8"-27 S Straight 0 None 2.5, 3.0, 4.0, 5.0, 6.0, C Plastic M11 L 90 Bend, Left Side 1 White, Vertical 7.0, 8.0, 10.0, 12.0, W Wing Clip R 90 Bend, Right Side 15.0, 16.0, 20.0 3 Terminal Size 1 63 .250 0 100 200 135 300 400 500 600 CURRENT (%) 700 800 900 1000 Black, Vertical White, Horizontal 4 Black, Horizontal 5 Button Color 7 Mounting Nut 9 Indicator Plate B N None or Wing Clip 0 None A Plastic Knurled 1 Embossed Aluminium B Metal Knurled 2 Silver Letters on Black C Metal Hex Nut D Sealing Knurled Boot Black WB White with trip indication 0.1 2 3 8 Std.Current Rating MOUNTING OPTIONS A. 3/8"- 27 UNS O .118 3 .472 12 ( ) .378 -.004 9.6 -0.1 O ( .118 3 ) .350 -.004 -0.1 8.9 Tripped condition Non-tripped condition .374 9.5 W. WING CLIP Panel cutout .236 6.0 .906 23 .461 11.7 C. M 11 O .118 3 .295 7.5 15A 250V~ 50V- Tripped condition Non-tripped condition .390 9.9 ATR20 15A 250V~ 50V- LINE LOAD .689 17.5 .976 24.8 .433 11 .610 15.5 .031 0.8 .248 x .031 6.3 x 0.8 .618 15.7 .689 17.5 Panel cutout .571 14.5 1.161 29.5 .547 13.9 +.004 +0.1 ( LOAD .461 11.7 1.161 29.5 .531 13.5 .906 23 ATR20 LINE M11X1 Pitch .472 12 .374 9.5 .295 7.5 .472 12 3/8" - 27UNS Pitch Tripped condition Non-tripped condition O .626 O 15.9 (+.004 ) +0.1 ) .031 0.8 .248 x .031 6.3 x 0.8 O ( Panel cutout ) .441 +.008 11.2 +0.2 .571 14.5 ( ) .394 +.008 +0.2 10 TERMINAL OPTIONS S. STRAIGHT R. 90 BEND, RIGHT SIDE L. 90 BEND, LEFT SIDE .343 8.7 ATR20 15A LINE LOAD .461 11.7 .689 17.5 .248 x .031 6.3 x 0.8 .031 0.8 LINE .157 4 250V~ 50V- .031 0.8 .248 6.3 .031 0.8 LOAD .689 17.5 .343 8.7 .102 2.6 .157 4 .248 6.3 LINE LOAD .689 17.5 .102 2.6 BUTTON PRINTING ACCESSORIES MOUNTING NUTS VERTICAL DUST COVER METAL KNURLED NUT (053-200-0005) METAL PLASTIC METAL KNURLED NUT HEXAGONAL NUT KNURLED NUT (P/N 053-200-0001) (P/N 053-200-0002) (P/N 053-200-0003) Panel Cutout Positions 15 HORIZONTAL 15 Panel Cutout Positions INDICATOR PLATE (c) Copyright 2006 All Rights Reserved 245-500-5043 02/06 TYPES: 1. Embossed (Aluminium) (P/N 053-200-0004) 2. Silver Letters on Black (P/N 053-200-0007) Airpax Corporation 807 Woods Road Cambridge, Maryland 21613 USA tel: 410.228.1500 fax: 410.228.3456 email: infoppp@airpax.net