Schneider Electric LAG8N113 TeSys Giga 1 NO + 1 NC Side Contact

LAG8N113: a side-mounted 1 NO + 1 NC block for TeSys Giga contactors

The LAG8N113 is a Schneider Electric auxiliary contact block for the TeSys Giga (TeSys G) LC1G contactor range. It carries one normally open and one normally closed instantaneous contact and mounts on the side of the contactor. The catalogue title calls the terminals push-in, while the specification table of the datasheet gives wire sizes for screw clamp wording, so the termination type should be confirmed from the datasheet at the time of order. Seven Star LLC supplies the LAG8N113 in Oman and the GCC as an independent supplier based in Muscat.

TeSys Giga is the large-frame contactor family of the TeSys line, used for big motors and heavy loads. A contactor of that size is a major item, and its auxiliary contacts are what tell the control system that it has actually closed. The LAG8N113 is a very slim block for that purpose: 15.4 mm wide, 55.8 mm high and 84.8 mm deep, with a net weight of 0.05 kg.

Technical specifications of the LAG8N113

Side mounting and why it matters for the LAG8N113

On the big TeSys G contactors the front face is occupied by the coil and the power connections, so auxiliary contacts go on the side, and the block is only 15.4 mm wide for exactly that reason. The datasheet lists the mounting location as side, and range compatibility as TeSys G LC1G.

The contactor also needs free clearance on the side for the block. In a tightly packed motor control centre, check the drawings for the room that the block takes before the contactors are placed side by side.

Ratings and contact data of the LAG8N113

The datasheet gives a rated operational voltage of 600 V AC at 25 to 400 Hz and a rated insulation voltage of 600 V, with a conventional thermal current of 10 A at 60 °C. Making capacity is 140 A AC and 250 A DC, and the short-time rating is 100 A for 1 s, 120 A for 500 ms and 140 A for 100 ms at 60 °C. The protection is a 10 A gG fuse.

The minimum switching level is 1 mA at 17 V, lower than the 5 mA of the TeSys D and K blocks, which suits low-level electronic inputs. Mechanical durability is 8 Mcycles. The non-overlap time between NC and NO contacts is 1.5 ms on energisation and on de-energisation, so the two do not conduct together.

Environmental limits and certifications of the LAG8N113

The datasheet lists an ambient air temperature range of -60 to 80 °C, wider than the accessories of the smaller TeSys ranges, an altitude limit of 3000 m and IP20 protection per IEC 60529. Certifications listed are CB Scheme, CCC, cULus, CE and UKCA.

The wide temperature range suits heavy plant that stands outdoors or in unconditioned switchrooms, though the cabinet around it will still decide the practical limit. Hot-climate sites should apply the usual derating thought to the whole starter and not only to the contact block.

Selection checklist for the LAG8N113

• Contactor: must be a TeSys G LC1G; the block is not listed for other ranges.
• Contacts: 1 NO + 1 NC, instantaneous.
• Mounting: side; leave 15.4 mm of space.
• Termination: confirm type (title says push-in) against the datasheet.
• Signals: voltage up to 600 V AC, 10 A thermal; 1 mA at 17 V minimum.
• If you need the TeSys D equivalent for smaller contactors, see the LADN11 and LADN22 family instead.

Fitting and testing the LAG8N113

Isolate the contactor, snap the block on the side, and wire the contacts to the control circuit with conductors of 0.75 to 2.5 mm² per the datasheet. Test by closing the contactor manually and checking with a meter that the NO closes and the NC opens.

Write the block into the spare parts list of the starter. On a large motor, a single failed feedback contact can stop the drive from starting, and a labelled spare saves a long search at night.

Where the LAG8N113 is used in Oman and the GCC

Large contactors of the TeSys Giga class switch big pumps, compressors and fans in desalination, power and petrochemical plants, and their feedback contacts connect to PLCs and DCS systems. The LAG8N113 is the usual way to get that contact.

In hot, dusty switchrooms, check the terminal tightness at each shutdown and keep the side clearances clean.

Information to send with an RFQ for the LAG8N113

• Full reference and quantity required
• TeSys Giga contactor model it will be mounted on
• Signal voltage and input type of the control system
• Required terminal type
• Delivery location and timing

Documents and quotation

A datasheet for the LAG8N113 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.