Series Thermal Relay Usage and its scope of application 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. This product confirms to: GB14048.4, IEC60947-4-1 etc. standards. Model and its implication Installation mode: Z is combination type, F is separated type Specification code: indicated as the rated operating current A Design serial Three phase Thermal relay 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

Relay JRS2 Series Thermal Relay 4.1 Rated insulation voltage of thermal relay as well as suited AC contactor to see table 1 - . . „ Table 1 Model Suited contactor model for combination installation Rated insulation Mrid life Frrouiccyonf over-load 4.2 Setting current adjusting scope of thermal relay as well as the recommended SCPD model and specification to see table 2 Table 2 Setting current adjustable scope A 0.1-016 0.16-0.25 0.25-.4 0.32-0.5 0.5-0.63 0.63-1 0.8-1.25 1-1.6 1.25-2 1.6-2.5 2-3.2 2.5-4 3.2-5 Recommended SCPD model, specification Conductor’s cross section for main circuit...

Relay JRS2 Series Thermal Relay Setting current adjustable scope A 40-57 50-63 55-80 57-70 63-80 77-88 63-90 80-110 80-125 90-120 110-135 120-150 125-200 135-160 150-180 160-250 200-320 250-400 320-500 400-630 Continued table 2 Recommended SCPD model, Conductor's cross section for main specification circuit mm 2 4.3 Action scope of the thermal relay when its each pole electrified to see table 3 No . Multiple of setting current 1 1.05 Predict results No action Action Action Action Action Action Initial status Cool status Thermal status (After serial No.1) Cool status Table 3 Ambient temperature...

Series Thermal Relay 4.5 Basic parameter of auxiliary circuit to see table 5 Table 5 Rated insulation voltage Ui (V) Setting thermal current Ith (A) Usage category Rated operating voltage Ue (V) Rated operating current Ie (A) Suited fuse (RDT16 type) specification A 4.6 Releasing grade of thermal relay: JRS2-12.5, 25, 32, 45, 63, 80, 135, 150, 180, 400, 630 is 10A grade Its action scope classic curve to see map 2 A. Three phase balance, unbalance, started by cooling status B. Three phase balance, break phase, started by thermal status S Multiply of setting current Map 2 Action scope curve External...

Relay JRS2 Series Thermal Relay Map 7 External and installation dimension of JRS2-45/Z Map 8 External and installation dimension of JRS2-80/Z Map 9 External and installation dimension of JRS2-135, 150 180/F Map 10 External and installation dimension of JRS2-400, 630 5.2 Installation dimension of JRS2-400, 630 to see table 6 Model Setting current of 80~200A for JRS2-400 46 Setting current of 160~400A for JRS2-400 so Setting current of 320~630A for JRS2-600 52 ► Ordering notice It must be noted: product model, specification, scope of setting current and ordering quantity For example: JRS2-12.5/Z,...