ta R11 Series
Thermal Circuit Protector for Equipment
featUReS
RoHS compliant, single pole, thermal current overload protector Protection range and operating voltage:
Reliable, trip-free operation on current overloads 0.1 to 16.0 Amps, 240 VAC, 50 VDC (cUus,cCSAus)
Warranty: 24-months from date of manufacture 0.5 to 12 Amps, 240 VAC, 24 VDC (VDE)
DeScRiption
The Airpax ATR11 product family is a single pole, thermally operated overload protector with a snap-acting trip mechanism that
provides reliable, trip-free operation on current overloads. The ATR11 series is designed with multiple mounting configurations
including central nut, wing clip, snap-in, integral and PC board mounting.
SpecificationS
Current Ratings 0.1 to 16 amps, standard ratings available
Voltage Ratings 240 VAC, 50/60 Hz, 50 VDC, 24 VDC (VDE)
Max Breaking Capacity 8x I for < 6A, 60A max. > 6A
n
Conditional Short Circuit Capacity 1KA, PC1, 240Vac 24Vdc
ref: EN60934, SC: 1KA, C1 240Vac 50Vdc
ref: CSA22.2 No. 235.04, UL-1077
Tripping Current Code (TC) TC2 ref: CSA22.2, No. 234-04
Insulation Resistance Min 100 M @ 500VDC
Dielectric Strength 1,500 VAC for 1 min.
Operational Life 1000 Cycles @ 2 x I
n
Overload Rating OL0 240Vac, 50Vdc, ref: CSA22.2, No. 235-04
Overload Switching Capacity 6x I AC Up to 9A, 4x In DC Up to 12A
n
60A Max. from 10A to 12A
Max Operating Temperature 60C (140F) Ambient
Application Type General Industrial ref: CSA22.2, No. 235-04
Method of Tripping Thermal TO, trip-free
Type of Actuation Reset type R
302 ATR11 Series SHUnt teRMinaL (option n)
Available on units of up to 6 amps equipped with a heater winding, an optional additional terminal can be provided as a parallel circuit
to the main current-sensing circuit. The shunt circuit between terminals 1 and 3 may be used for any signal that may be required in
addition to the main circuit. However, since the circuit makes use of the bimetal strip as a current-carrying path, the trip time of the
circuit protector may be slightly influenced.
tiMe / cURRent cHaRacteRiSticS
The standard characteristic is valid for an ambient temperature of 23C. However, if the device is to be used in an ambient temperature
other than 23C, an allowance must be made when selecting the current rating.
See the chart, graph and example below to help determine the right circuit protector rating for your application.
aMbient teMpeRta URe coRRection factoR
Ambient Temperature (C) - 20 - 5 0 + 10 + 20 + 30 + 40 + 50 + 60
Multiplication Factor 0.8 0.88 0.9 0.96 1 1.05 1.12 1.2 1.3
Example : Operating Characteristics :
Normal Continuous Current = 1.8 A
(min) 60
Ambient Temperature = 40C
30
20
Multiplication Factor = 1.12 (from graph)
10
5
Recommended Rating: 1.8 x 1.12 = 2.016
Select the Nearest Rating = 2 amps
1
(S) 50
20
10
5
2
1
0.5
0.2
0.1
1.05 1.32 2 3 4 5 8 10
Multiple of Current Rating
(x I )
n
Rated Current
< 6A
6A
Ambient
23C
Temperature