Thermal protection relay JRS2

1 NO/NCthree-phaseAC

JRS2 Series Thermal Relay is suitable for the power system of AC50Hz/60Hz, rated voltage Ue: 690V, current 0.1~630 (A) as the use of over-load and break-phase protection of AC motor or circuit. Thermal relay has the functions of break phase protection, temperature compensation, optional selection of manual reset and auto-reset, inspection of action flexibility, and manually break the NC contacts and NO contacts. Normal operating condition and installation condition 3.1 Ambient temperature: -5ÿ~+40ÿ, average value within 24h does not exceed +35ÿ; 3.2 Height of altitude: does not exceed 2000m, 3.3 Atmosphere: when highest temperature is +40ÿ, the relative humidity does not exceed 50%; it allowed the relatively high humidity when it is under the relatively low temperature, for example, it reaches 90% when +20ÿ; It should take special measurements if there produced condensation that is due to the temperature variation. 3.4 Grade of pollution: 3 3.5 Installation category: III 3.6 Position of installation: the gradient between the installation side of relay and the vertical side is not more than ±5° 3.7 Impact and vibration: product should be installed and used at the places of no obvious shake, impact and vibration. 3.8 Installation mode: JRS2-12.5, 25, 32, 45, 80 has three kinds of installation mode: combination installation, screw installation, 35mm standard rail installation. JRS2-63, 135, 150, 180, 400, 630 has two kinds of installation mode: screw installation, 35mm standard rail installation. 3.9 Protection grade: IP00