14 Years Factory wholesale XJM7-J Measuring box (Infrastructure Energy Measurement Box) for Mumbai Importers


Technical data

Product illustration

Tripping characteristic

Exterior and dimensions

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Our company promises all users of the first-class products and the most satisfying post-sale service. We warmly welcome our regular and new customers to join us for 14 Years Factory wholesale XJM7-J Measuring box (Infrastructure Energy Measurement Box) for Mumbai Importers, Welcome to contact us if you are interested in our product, we will give you a surprice for Qulity and Price.


XJM7-J metering box (infrastructure power metering box) is suitable in power supply system with AC 50HZ, rated voltage 380 / 220V , as the power measurement in construction site.


Meet GB7251.1-1997 and GB7251.3-1997 standards.

3C certificate:

XJM7-J Mgy Measurement Box)-2

HAGER Leitungsschutzschalter 3p. B-20A,6kA,3M QC MBS320
Leitungsschutzschalter 3p. B-20A,6kA,3M QC MBS320 Auslösecharakteristik B, Polzahl (gesamt) 3, Bemessungsstrom 20A, Bemessungsspannung 400V, Bemessungsschaltvermögen nach EN 60898 6kA, Spannungsart AC, Energiebegrenzungsklasse 3, Frequenz 50Hz, Breite in Teilungseinheiten 3, Einbautiefe 70mm, Zusatzeinrichtungen möglich, Schutzart (IP) IP2X, Entsprechend DIN EN 60898-1 (VDE 0641 Teil 11): 2003-12, EN 60898-1: 2003, EN 60898-1, pr A1: 2003. Mit abgangsseitiger QuickConnect-Klemme (Steckklemme) bis 16 A, zugangsseitig bis 63 A. Mit Beschriftungsmöglichkeit kann einzeln aus dem Schienenverbund entnommen werden. Berührungsschutz nach DIN VDE 0106 Teil 100 fotografiert von EIB3D.COM


HAGER Miniature circuit breaker 3-p B20A – MBS320
Miniature circuit breaker 3-p B20A Release characteristic B, Number of poles (total) 3, Rated current 20A, Rated voltage 400V, Rated short-circuit breaking capacity EN 60898 6kA, Voltage type AC, Current limiting class 3, Frequency 50Hz, Width in number of modular spacings 3, Built-in depth 70mm, Additional equipment possible, Degree of protection (IP) IP2X, photographed by EIB3D.COM

EAN: 3250614314896
AC-Automat, AC-Schutzschalter, Automat, DC-Automat, DC-Schutzschalter, Einbauautomat, Gleichstromautomat, Gleichstromschutzschalter, Installationsautomat, LS-Automat, LS-Schalter, Leitungsschutzschalter, MCB, Sicherungsautomat, Universalspannungsautomat, Universalspannu

Webpage: http://bscircuitdesigns.com/

eBay link (schematics included): http://www.ebay.com/itm/251484583990?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

This is an extremely simple BFO style metal detector demonstration using two basic coil / inductor oscillators running at about 430kHz producing an audible beat frequency in the presence of metal objects.

How it works:
This particular arrangement “looks” like a typical Double D style coil arrangement, but don’t let it fool you. A “DD” has one drive coil and one receive coil. In this case both coils are being driven. When two coils that are driven share the same plane they will mutually oscillate and seek the same frequency. The magic happens when the coils overlap slightly. When they overlap at a certain point there is a balance where the mutual oscillation goes away and they don’t influence each other, allowing them to freely oscillate and become easily altered by their environment … i.e. a metal object.

The Idea is to place the two coils in this overlapping arrangement so that they are JUST on the edge of influencing each other at the same oscillation, but are very susceptible to being altered externally. This type of detector has a slight advantage over a standard BFO in that “both” coils are near the sense field which help to minimize any ground effects you might otherwise have using a single coil near the sense field. Ground effects are caused by soil variations, such as mineral content, moisture, etc. Since both coils experience virtually the same ground conditions (unless passing over a metallic object), ground effects are mathematically canceled out leaving you with a higher signal to noise ratio when detecting.

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