Schneider Electric LC1D115A6KUE 115 A Contactor 100-250 V AC/DC

LC1D115A6KUE: 115 A TeSys Deca contactor with ring lugs and 100-250 V AC/DC coil

The LC1D115A6KUE is a Schneider Electric TeSys Deca contactor with ring lugs / busbars, a 100-250 V AC/DC coil and a 115 A AC-3 rating. The datasheet title reads: Contactor Deca 115A 3P 100-250V ACDC Lug. The LC1D115 is the 115 A frame of the TeSys Deca range, a heavy contactor rated 115 A in AC-3 and AC-3e at up to 440 V and 200 A in AC-1. It is built for motors of 55 kW at 400 V and for large resistive or capacitor-free switching duties, in a body 152 mm tall, about 99 mm wide and 155 mm deep. Seven Star LLC supplies the LC1D115A6KUE in Oman and the GCC as an independent supplier based in Muscat.

Reading the reference: LC1D115 is the 115 A TeSys Deca frame, the A6 group marks the ring lugs / busbars version, and KUE is the coil code for 100 to 250 V AC 50/60 Hz and 100 to 250 V DC. The same coil on the other terminal style is LC1D115AKUE. The datasheet gives a body of 152 x 99 x 155 mm (H x W x D) and a net weight of 2.2 kg.

Technical specifications of the LC1D115A6KUE

Ring lugs and busbars on the LC1D115A6KUE

The power circuit of the LC1D115A6KUE is terminated with ring lugs (external diameter 25 mm) or with busbars of 5 x 25 mm cross section, and the datasheet specifies 12 N.m on the M8 hexagonal head (13 mm). That arrangement suits large fixed cable lugs crimped by the panel builder and busbar-connected starters, and it keeps the contact surface bolted rather than clamped. The contactor is plate-mounted only; the datasheet lists no rail mounting for this version.

In the references of this family, the A6 in the part number marks the lug and busbar version, in contrast to the connector version without the 6. This reading comes from the datasheet titles, which describe A6 references as ‘lugs-ring or bars’ and the others as ‘connector’.

100-250 V AC/DC coil and control circuit of the LC1D115A6KUE

The coil of the LC1D115A6KUE is a wide-range AC/DC type: 100 to 250 V AC 50/60 Hz and 100 to 250 V DC. The datasheet states operational limits of 0.8 Uc minimum to 1.1 Uc maximum and a drop-out at or below 0.1 Uc, over -40 to 60 °C, for both AC and DC. Applied to this range, 0.8 x 100 V is 80 V and 1.1 x 250 V is 275 V. The coil carries a built-in bidirectional peak limiting diode suppressor, so a separate suppressor is not normally needed. Pick the 100 to 250 V coil when the contactor will be driven straight from phase and neutral at 230/240 V and you also want the option of 110 V or 220 V DC control later. It avoids a control transformer in simple starters and keeps spare-part holdings small.

Commissioning check on a 100 to 250 V coil: confirm the control voltage lies between 80 V and 275 V at the coil while closing. On a 240 V AC supply this leaves a wide margin; on a 110 V system it leaves less margin at the bottom, so check for voltage drop in long runs.

Wiring a 100 to 250 V coil: connect it to phase and neutral at 230/240 V, to 110 V or 220 V DC, or to a transformer. The datasheet gives 105 W inrush and a hold-in of 8 VA (4.5 W) for this coil, the lowest hold-in watts of the four coils, which keeps heat in the panel low.

Typical homes for the LC1D115A6KUE: general industrial motor starters fed straight from the single-phase network without a control transformer, panels where the site may change between 110 V and 230 V DC or AC, and OEM machines exported to several countries with different control voltages.

Ratings, motor sizes and short-circuit data of the LC1D115A6KUE

At 115 A AC-3 the datasheet lists 30 kW at 230 V, 55 kW at 400 V, 59 kW at 415 V, 75 kW at 500 V, 80 kW at 690 V and 65 kW at 1000 V. For 60 Hz motors the datasheet gives 30 hp at 200/208 V, 40 hp at 230/240 V, 75 hp at 460/480 V and 100 hp at 575/600 V. The utilisation categories listed are AC-3, AC-3e, AC-1, AC-4, DC-1, DC-3 and DC-5.

Making capacity is 1560 A at 440 V and breaking capacity 1100 A at 440 V. The datasheet pairs the contactor with 125 A aM fuses up to 440 V, 100 A aM up to 690 V, or 200 A gG up to 690 V for the power circuit, and the short-time withstand current is 1280 A for 10 s and 1800 A for 1 s at 40 °C.

Mechanical life is 8 million cycles; electrical life is 1 million cycles at 115 A AC-3 and 0.5 million at 200 A AC-1 (all at up to 440 V). The datasheet’s maximum operating rate is 2400 cycles per hour at 60 °C, and the safety data gives B10d of 684932 cycles at nominal load.

Power circuit insulation is rated 1000 V to IEC 60947-4-1 with an impulse withstand of 8 kV, overvoltage category III and pollution degree 3. Contact impedance is 0.45 mΩ at 200 A and 50 Hz.

The LC1D115A6KUE among the LC1D115 lug-terminal references

The table lists the 115 A ring lugs / busbars references in this series; the coil code is the only difference inside the group. The connector twin with the same coil is LC1D115AKUE.

Against the other coil bands of this frame, the 100 to 250 V AC/DC coil is the broad line-voltage choice for single-phase supplies, covering both 230/240 V AC and 220 V DC. The 48 to 130 V band cannot serve 230 V, and the 200 to 500 V band starts at 200 V and is aimed at line-to-line control, so this band is the natural fit for a phase-neutral supply.

Selection checklist for the LC1D115A6KUE

• Motor size: up to 55 kW at 400 V in AC-3, 59 kW at 415 V.
• Whether the starter is direct-on-line or a star-delta or soft-starter bypass, since the contactor sees different currents.
• Coil voltage band (24-60, 48-130, 100-250 or 200-500 V AC/DC) and available control power.
• Terminal style: ring lugs or busbars (A6 references) versus connector (A references).
• Fuse or breaker for short-circuit protection: 125 A aM at up to 440 V per the datasheet.
• Overload protection: electronic overload relay or motor protection suitable for 115 A frames.
• Check the actual control voltage and its type (AC or DC); this coil covers both between 100 V and 250 V.
• Confirm the 100-250 V AC/DC control supply can deliver the 170 VA inrush at the lowest voltage it reaches in operation.

Typical applications of the LC1D115A6KUE in Oman and the GCC

A 115 A contactor typically starts 45 to 55 kW pumps, large fans, compressors and crushers, and is also used for switching resistive banks and transformer-fed heating. In Oman and the GCC it is found in MCC starter buckets for water treatment, in desalination feed pump drives and in industrial ventilation.

The datasheet lists a protective treatment of ‘None’ for this frame, against ‘TH’ on the compact 9 to 25 A contactors, so a heavy contactor in a humid or salt-laden coastal atmosphere should be inside a sealed, ventilated panel instead of exposed to air. Summer temperatures in the region also call for attention to the 60 °C operating limit and the derating up to 70 °C given in the datasheet.

Information to send with an RFQ for the LC1D115A6KUE

• The reference LC1D115A6KUE and the quantity required
• The coil voltage on any contactor it replaces, and whether the control is AC or DC
• Motor power, supply voltage and starter type, so the 115 A frame can be confirmed
• Terminal style on site: ring lugs or busbars, or connector terminals
• Delivery location and timing, and whether the item is a spare or new installation

Documents and quotation

A datasheet for this product is attached on this page. It lists the electrical, mechanical and environmental data summarised above.

Send us the part number LC1D115A6KUE, the quantity and the 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.