AR2 Series Overload Protector

AR2 Series Overload Protector

AR2 Series Overload Protector

Protect motors with the AR2 Series Overload Protector, designed for reliable overload protection, stable performance, and easy integration in industrial control systems.
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Product Features

Rated Current: 3A–25A 

Rated Voltage: 125/250V AC, 50V DC 

Short-Circuit Test: 125V AC × 1000A, 250V AC × 200A 

Dielectric Withstand Voltage: 1500V AC for 1 minute 

Overload Capacity: 10 times rated current 

Voltage Drop: Less than 0.25V 

Insulation Resistance: Greater than 500 MΩ 

Terminal Temperature Rise: <65 K at 100% rated current, stabilized at 25 °C 

Reset Time: Resets within 60 seconds 

Reset Mode: Manual reset 


Test Standards (Constant Temperature 25 °C) 

    100% Current Test: No trip 

    150% Current Test: Trips within 1 hour 

    200% Current Test: 5–40 seconds to trip 

    300% Current Test: 1.2–15 seconds to trip


Technical Specifications

Derating Factor

Temperature

(℃)

Correction Current
60*0.6
50*0.7
40*0.8
30*0.9
25*1.0
20*1.1
10*1.3
0*1.5



Maximum Resistance and Rated Current at 25℃

Rated CurrentMaximum Resistance Value
2~4A<0.05
5~6A<0.04
7~8A<0.025
9~11A<0.02
12~13A<0.01
14~16A<0.008
17~25A<0.007


Dimensional Drawing

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