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JR20 Series Thermal Over-load Relay

JR20 Series Thermal Over-load Relay
4Pages

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Series Thermal Over-load Relay Usage and its scope of application JR20 series thermal over-load relay is suitable for the power system of AC 50 Hz/60Hz, rated operating voltage Ue: 660V, current 0.1~630A, as the use of over-load and break phase protection for AC motor. Thermal relay has the functions of break phase protection, temperature compensation, optional selection of manual reset and auto-reset, the check of action releasing flexibility, and manually break NC contacts, etc. This product confirms to: GB14048.4, IEC60947-4-1 etc. standards. Installation mode: Z for combined type, L for separated type Code for specification: to be indicated as rated current A Design serial No. Thermal Over-load Relay Normal operating condition and installation condition 3.1 Ambient temperature: -5℃~+40℃, and the average value within 24h does not exceed +35℃； 3.2 Altitude of the installation place does not exceed 2000m; 3.3 Atmosphere condition: The relative humidity does not exceed 50% when it is at +40℃, it allowed relatively high humidity at the relatively low temperature, for example, the relative humidity reaches 90% when +20℃, and it should take special measurements when there produced the condensation on the product due to the temperature variation. 3.4 It should be at the no explosion danger medium, and the medium without the gas that cannot corrode the metal and damage the insulation as well as the places that without conductive dust. 3.5 Grade of pollution: 3 3.6 Installation category: III 3.7 Installation position: installed at the normal position, the gradient between the installation side and the vertical side does not exceed ±5°, and without obvious vibration and impact. 3.8 Protection grade: IP 00 3.9 Installation mode: JR20-25 has two kinds of installation modes: combined type, screw installation; JR20-63 has four kinds of installation modes: combined type, screw installation, 35mm standard rail combined installation and separated installation. JR20-160 has screw installation mode.

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Main technique parameter4.1 Setting current adjusting scope of thennal relay to see table 1 Table 1 www.peopleelectric.com simon@chinapeople.com

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Series Thermal Over-load Relay 4.3 Action scope of thermal relay when two poles are electrified to see table 3 No. Multiple of setting current Any two phases Action time Another phase Initial status Cool status Thermal status (after serial No.1) 4.4 Basic parameter of auxiliary circuit to see table 4 Rated insulation voltage Ui (V) Setting thermal current Ith (A) Usage category Rated operating voltage Ue (V) Rated operating current Ie (A) Fuse (RDT16 type) specification A 4.5 Releasing grade of thermal relay is 10 grade, its action scope curve to see map 1 Time H Thermal Cool A. Three phase...

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Map 4 External and installation dimension for JR20-25/Z Map 5 External and installation dimension for JR20-10/L, 16/L, 25/L Map 8 External and installation dimension for JR20-160/L Map 9 External and installation dimension for JR20-250/L, 400/L, 630/L Ordering Notice It required to be noted: Product model, specification, setting current adjusting scope and required quantity. For example: 1R20-10/L, 1.2—1.5A, 200 pcs www.peopleelectric.com simon@chinapeople.com

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JR20 Series Thermal Over-load Relay 4Pages

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JR20 Series Thermal Over-load Relay
4Pages