Schneider Electric LC2D09BD 9 A TeSys Deca Reversing Contactor

LC2D09BD contactor: a pre-assembled reversing pair with 24 V DC coils

The LC2D09BD is a Schneider Electric contactor described in the datasheet as: TeSys Deca reversing contactor – 3P(3 NO) – AC-3 – <= 440 V 9 A – 24 V DC coil. A reversing contactor lets a three-phase motor run in both directions by swapping two phases. The LC2D09BD supplies two 9 A contactors preassembled with a mechanical interlock and wired power connections, so the installer does not have to build the reversing circuit. Seven Star LLC supplies the LC2D09BD in Oman and the GCC as an independent supplier based in Muscat.

Reading the reference: LC2 indicates the reversing version of the Deca contactor, D09 the 9 A frame and BD the 24 V DC coil, as confirmed by the coil rows. The datasheet also shows one NO plus one NC auxiliary contact.

Technical specifications of the LC2D09BD

Power circuit and coil data of the LC2D09BD

Utilisation categories: AC-3; AC-1; AC-3e. Rated operational voltage: Power circuit <= 690 V AC 25 to 400 Hz; Power circuit <= 300 V DC. Rated operational current: 9 A (at <60 °C) at <= 440 V AC AC-3 for power circuit; 25 A (at <60 °C) at <= 440 V AC AC-1 for power circuit. Motor power ratings: 2.2 kW at 220 to 230 V AC 50-60 Hz; 4 kW at 380 to 400 V AC 50-60 Hz; 4 kW at 415 V AC 50-60 Hz; 4 kW at 440 V AC 50-60 Hz. Coil voltage: 24 V DC. Coil operating limits: 0.1 to 0.25 Uc (-40 to 70 °C):drop-out DC; 0.7 to 1.25 Uc (-40 to 60 °C):operational DC; 1 to 1.25 Uc (60 to 70 °C):operational DC. Inrush coil consumption: 5.4 W 20 °C. Hold-in consumption: 5.4 W 20 °C.

Because the coil is 24 V DC, the contactor can be driven directly from a PLC output sized for the coil current, which is useful on machines with a 24 V control supply.

Why the interlock and the wiring in a reversing set matter

If the two contactors close at once the three phases short-circuit. The mechanical interlock between the two devices prevents that physically, and the pre-wired power links remove the common error of mis-wiring the reversing connections.

A good reversing control also adds an electrical interlock through the auxiliary contacts and a short delay before the reverse command so that the motor has time to decelerate. For heavy loads, take the plugging category into account: reversing from full speed is a hard duty for the contacts.

Choosing the LC2D09BD: a short selection checklist

• Motor power and current, and whether reversing is done from standstill or on the run.
• Control voltage: 24 V DC for this reference.
• Auxiliary contacts required by the interlock scheme.
• Matching thermal overload relay or motor circuit breaker.
• Whether a coil surge suppressor is already present in the datasheet.
• Panel space for the pair and the wiring kit.

Mounting, wiring and service life of the LC2D09BD

Mount on a rail, wire the supply to the upper terminals and the motor to the lower ones, and connect only the control side. Because the power circuit is pre-wired, check that the phase rotation is correct on both directions during commissioning.

Test the interlock by trying to energise both coils with the motor disconnected; neither contactor should accept the second command. Check contacts for wear at the interval set by the duty.

Where the LC2D09BD is used in Oman and the GCC

Reversing contactors are used on door and gate motors, hoists, conveyors that run both directions, valve actuators and small positioning drives in the region. Their 24 V DC coil is common in OEM machines imported to the Gulf.

Dimensions, environment and approvals of the LC2D09BD

For the LC2D09BD, plan the mounting space from the datasheet: 90 mm (W) x 77 mm (H) x 95 mm (D). The LC2D09BD weighs 1.017 kg. Mounting, derating and enclosure choices follow the environmental data below, which should be compared with the actual panel temperature and the dust and humidity of the site in Oman and the GCC.

Ambient temperature limits in the datasheet: -40 to 60 °C. Ingress protection: IP20 front face IEC 60529. Operating altitude: 0 to 3000 m. Standards listed: CSA C22.2 No 14; EN 60947-4-1; EN 60947-5-1; IEC 60947-4-1; IEC 60947-5-1; UL 60335-2-40:Annex JJ; IEC 60335-1. Certifications listed for this reference: DNV; CSA; CCC; UL; GL; LROS (Lloyds register of shipping); BV; RINA; GOST; UKCA.

Information to send with an RFQ for the LC2D09BD

• Full reference and quantity required
• Existing equipment, panel or rack it must fit
• Supply voltage, load or signal details of the application
• Required delivery location and timing
• Whether a spare, a replacement or a 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, quantity and application and we will confirm availability and a quotation. Seven Star LLC is an independent supplier in Muscat and does not represent itself as an official channel of the manufacturer.