產品資訊 - RCD Tester/ ELCB Tester (Up To 1000mA)->circuit breaker

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Shanghai Beihan Electronics Co.,Ltd

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RCD Tester/ ELCB Tester (Up To 1000mA)

產品分類 :

電子電工->電子零件->斷路器

產品規格

Model No:	2820EL

Country	CN
Brand	Beihan
Size	170(L) x 120(W) x 95(D) mm
Weight	Approx. 800g (battery included)

產品描述

FEATURES
Operating voltage 100-450V L-E.
Rated current 999mA, at 317V AC/50Hz.
Checks ELCB trip time and trip point (sensitivity).
Auto Off/Auto Ranging.
Indicates tripping phase angle.
Impact resistant enclosure.
Over temperature shut-down.
Transient protection.
Suitable for heavy industrial use.
Fused.
EN 61010-1, IEC 1010-1 CAT III 450V.

OPERATING PRINCIPLES
EARTH LEAKAGE TESTS
The testers may be used to check the trip point (Test 1) of the ECLB or the trip time (Test 2). Test 1 is normally used on instantaneous ELCB while Test 2 is normally used on inverse and fixed time-delay ELCB.

TEST PROCEDURE
Test 1 - instantaneous ELCB A ramp current, increasing at approximately 12 mA/s is introduced between L and E and the point at which the ELCB trips is recorded. To save time and reduce energy dissipation, the starting point of the ramp may be selected.
Test 2 - inverse and fixed time delay ELCB. a constant current is selected and injected between L-E and the tripping time is recorded.