Schneider Electric LADN11G TeSys D 1 NO + 1 NC EN 50012 Block

LADN11G: EN 50012 variant of the 1 NO + 1 NC front contact block

The LADN11G is a Schneider Electric TeSys D front contact block with one normally open and one normally closed contact in screw clamp execution, and the catalogue title adds EN 50012. It is closely related to the LADN11 and has the same contact pattern and 26 mm width. Seven Star LLC supplies the LADN11G in Oman and the GCC as an independent supplier based in Muscat.

The G suffix is the mark of the EN 50012 variant in the title. EN 50012 also appears in the standards line of the datasheet. A buyer who is matching an existing block against a drawing that quotes EN 50012 should therefore keep the G and compare the standard with the drawing.

Technical specifications of the LADN11G

Compatibility list of the LADN11G

The datasheet’s list is more specific than for the plain version: TeSys D LC1D09 to D80, LC1DT20 to DT40, LC1DT60A to DT80A, TeSys F LC1F and CR1F, and the same ranges under the TeSys Deca name. That makes it clear which sizes of contactor accept the block.

Rated operational voltage is 690 V AC at 25 to 400 Hz, with conventional thermal current of 10 A at 60 °C. Rated operational current is 6 A at 120 V AC-15, 1.04 A at 690 V AC-15, 0.55 A at 125 V DC-13 and 0.1 A at 600 V DC-13. Making capacity is 140 A AC and 250 A DC, protection is a 10 A gG fuse, mechanical durability is 30 Mcycles, and the minimum switching level is 5 mA at 17 V. The non-overlap time between the NC and NO contacts is 1.5 ms on energisation and on de-energisation.

Why the G suffix of the LADN11G matters

Auxiliary blocks carry numbers next to each terminal, and a drawing expects the numbers of one convention. The catalogue title of this version names EN 50012, the plain LADN11 does not, so a panel whose drawings quote EN 50012 should be matched with the G version.

The electrical ratings are the same as for the plain version, so the choice is purely one of documentation and compatibility with existing panels.

LADN family: the LADN11G compared with its siblings

All six references below are front-mounting TeSys D blocks with screw clamp terminals; they differ in contact pattern and width.

LADN11G ordering notes

• 1 NO + 1 NC with EN 50012 in the title.
• 26 mm wide, same footprint as the LADN11.
• Check LC1D, LC1DT or LC1F/CR1F contactor type.
• Confirm with the wiring diagram that the terminal numbering is the expected one.
• Ambient range -5 to 60 °C.

Where the LADN11G is used in Oman and the GCC

Plants built to European panel standards and exported to the Gulf often show EN 50012 numbering on the drawings. Contractors replacing blocks on such panels choose the G type so that the schematics remain valid.

It is common in pump stations and fan rooms using LC1D contactors from 9 A to 80 A.

Fitting the LADN11G

Mount it on the front, wire with screw clamp terminals and tighten at 1.7 N.m. Use conductors from 1 to 4 mm² flexible with ferrule, or two conductors within the limits in the datasheet.

Verify the function and mark the terminal numbers on the panel schematic. If the block replaces an older unit, check that the old numbers are unchanged.

Information to send with an RFQ for the LADN11G

• Full reference and quantity required
• Contactor model the block mounts on
• Contact arrangement needed (NO and NC count)
• Control voltage and load of each circuit
• Delivery location and timing

Documents and quotation

A datasheet for the LADN11G is attached on this page. It carries the electrical, mechanical and environmental data summarised above, so the figures can be checked against your drawings.

Send the part number, quantity and application and we will confirm availability and a quotation. Seven Star LLC is an independent supplier in Muscat and is not affiliated with the manufacturer.