Schneider LC1D115F7 AC Contactor

Serie: TeSys Deca (TeSys D) 3-Pol AC-Schütz

Erklärung des Modellcodes

LC1D: TeSys D standard contactor series

115: AC-3 rated current 115A @ 440V

F: Coil voltage code → 110V AC

7: 50/60Hz universal frequency

Elektrische Kernparameter

Hauptkontakte: 3P, 3 Normalerweise geöffnet (3NEIN)

AC-3 (motor duty): 115A ≤440V; suitable for 55kW motor at 400V

AC-1 (ohmsche Last): Conventional thermal current Ith=200A (≤60℃)

Spule: AC110V, 50/60Hz

Eingebaute Hilfskontakte: 1NEIN + 1NC

Bemessungsstoßspannungsfestigkeit Uimp: 8kV; Nutzungskategorien: AC-3 / AC-3e / AC-1 / AC-4

Short-time making capacity: 1260A @440V

SCCR short-circuit withstand rating: bis zu 100kA

Mechanisch & Umweltspezifikationen

Gesamtdimension: H158mm × W120mm × D136mm; Net weight 2.5kg

Front face protection: IP20

Umgebungstemperatur: -40℃ ~ +60℃; derating required from 60℃ to 70℃

Maximum installation altitude: 3000M

Standards: IEC60947-4-1, CCC, CE, UL, CSA certifications

Maximale Betriebsfrequenz: 2400 Zyklen/Stunde

Lebensende & Ersatzinformationen

This model is scheduled for discontinuation (last supply date: 31-Dec-2026)

Official recommended upgraded replacements:

LC1D115AEHE: 48–130V AC/DC wide-voltage coil, Everlink terminal, montagekompatibel

LC1D115AKUE: 100–250V AC/DC wide-voltage version

Notiz: Replacement models adopt wide AC/DC coils with the same logic as original 110VAC coil. Terminal hole layout and DIN rail mounting are fully compatible, direct cabinet retrofit is available.

Kompatibles Zubehör

Thermisches Überlastrelais: LRD43 series (for 115A range)

Hilfskontaktblock: LA1DN (für zusätzliche Hilfskontakte)

Überspannungsschutz: LA4DA coil suppressor (for AC coil)

Mechanische Verriegelung: LA9D11502 (for reversing circuit)

Typische Anwendungen

Start/stop control for 3-phase motors such as fans, Wasserpumpen, air compressors and belt conveyors; widely used in HVAC, panel assembly and automated production lines.

Application Cases of LC1D115F7 (115A, AC110V Coil)

Basic capability: Max. 55kW 3-phase squirrel-cage motor under AC-3 @400V; control circuit AC110V, eingebaute 1NO+1NC Hilfskontakte. Suitable for DOL direct-on-line, Stern-Dreieck, forward-reversing and MCC motor control circuits. Widely used in panel assemblies, HVAC, Wasseraufbereitung, Luftkompressoren und Förderleitungen. The most typical configuration uses 110V isolation transformer secondary as control power supply.

Fall 1: DOL Starter Cabinet for Chiller Compressor (Central Air Conditioning Host)

Laden: 55kW screw compressor motor, 400V 3-phasig

Circuit configuration: Leistungsschalter + LC1D115F7 + LRD43 thermal relay; PLC sends 110VAC control signal to energize contactor coil

Steuerlogik: PLC sequential control (start oil pump and cooling water pump first, then host compressor); thermal relay fault feedback to PLC; lokales Handbuch / remote auto switch

Auswahlgrund: Secondary control of chiller cabinet uniformly adopts AC110V, perfectly matching F coil; compressor operates with low switching frequency, sufficient electrical life; CCC+CE, meets MEP acceptance requirements

Accessory used: LA4DA coil surge suppressor (to suppress back EMF from compressor startup)

Fall 2: Kommunal / Plant Fire Main Pump (Stern-Dreieck-Start)

Laden: 55kW fire sprinkler pump / hydrant pump

Circuit configuration: 3 pcs LC1D115F7 for star-delta starter (main contactor, Sternschütz, Dreieckschütz), with timer, mechanical interlock and fire alarm terminal block

Merkmale: Many fire control cabinets adopt AC110V secondary circuit, F7 coil is a direct match; auxiliary contacts feed running and fault status to fire alarm host; thermal relay is required for overload protection (fire code allows overload alarm without immediate shutdown)

Bemerkungen: 3 contactors with same rating 115A for star-delta circuit; LA9D11502 mechanical interlock is mandatory to prevent short circuit between star and delta states

Fall 3: Screw Air Compressor Control Cabinet (55kW)

Laden: 55kW Hauptmotor des Schraubenluftkompressors, auto start/stop by pressure

Schaltung: Druckschalter / SPS + LC1D115F7 + Thermorelais; compressor built-in 110V control transformer

Betriebszustand: Intermittent start-stop, normally <600 Zyklen/Stunde, well within rated 2400 Zyklen/Stunde; AC-3-Dienst

Extra function: Auxiliary contacts connected to compressor controller for running status and fault upload to upper system

Fall 4: Water Treatment Plant – Circulating Pump / Sewage Lift Pump

Laden: 55kW large-flow centrifugal pump, sludge return pump

Schema: DOL direct start; duty-standby interlock circuit (2 pcs LC1D115F7 plus LA9D11502 mechanical interlock)

Kontrolle: Auto switching via level / Drucktransmitter + SPS; standby pump auto start upon main pump fault; control power AC110V

Environment note: Pump room is humid, dehumidifier fitted inside cabinet; contactor IP20 suitable for cabinet mounting

Fall 5: Heavy-duty Belt Conveyor in Factory

Laden: 55kW main drive motor for belt conveyor, schwerer Start

Schema: DOL or star-delta; some with forward-reversing function (2 pcs LC1D115F7 + mechanische Verriegelung)

Betriebszustand: Heavy inrush current at startup; derating assessment required for AC-4 duty (häufiges Joggen & rückwärts fahren); soft starter is recommended for priority while contactor serves as output switch

Signal: Auxiliary contacts send belt running and fault alarm to SCADA

Fall 6: MCC Motor Control Center Drawout Unit

Szenario: MCC cabinet drawer circuit in chemical plant, power plant and building material plant

Konfiguration: Standard motor starter drawer unit, Leistungsschalter + LC1D115F7 + Thermorelais; secondary 110V control supply

Vorteil: Standardized TeSys D series, mature interface for MCC drawer; auxiliary contacts for drawer position and running feedback; easy plug-and-play maintenance

Fall 7: High-power Heating Circuit for Resistive Load (Nichtmotorisch)

Laden: 3-Phasenheizelemente, large electric oven, Ith=200A under AC-1

Beschreibung: Higher allowable current 200A for AC-1 resistive load than motor duty. Suitable for main circuit of large hot-air furnace and heat-treatment oven; PLC or temperature controller outputs 110V control signal for coil driving

Notiz: Arc extinguishing characteristic differs between resistive and motor loads. Not suitable for frequent switching of high-power heating loads.

Supplementary Selection & Betriebshinweise (for F7 coil)

1. Coil rated AC110V, DO NOT connect directly to 220V. Control transformer is required inside cabinet to output AC110V
2. This model is at end-of-life phase. New projects prefer replacement model LC1D115AEHE (48–130V AC/DC wide voltage, compatible with 110VAC)
3. Für häufiges Start-Stopp, jogging and reversing (AC-4) Anwendungen, select one higher current rating or adopt soft starter to reduce contact erosion
4. Thermal relay LRD43 series must be fitted for overload protection of all motor circuits

Schneider TeSys D LC1D 3-pole Contactor Order List (Standard 3P, 1NO+1NC Auxiliary, Schraubklemme)

Benennungsregel:

LC1D + Aktuelle Bewertung + Spulencode

Coil suffix:

7 = AC 50/60Hz (am häufigsten in China)

5=50Hz, 6=60Hz

D=DC-Spule

B=24V, E=48V, F=110V, M=220V, P=230V, Q=380V, V=400V

⚠️ Old domestic marking for 115/150/170A: LC1D11500F7C; new import version is LC1D115F7 directly, LC1D115F7 is the model above

Status: Old LC1DxxB7/F7/M7/Q7/V7 series to be discontinued by end of 2026

New replacements: AEHE (48–130V AC/DC wide voltage), AKUE (100–250V AC/DC wide voltage)

400V AC-3 Motor Power Reference

Supplementary Categories

1. 4-pole Versions (LC1DT: 4NO resistive; LC1Dxx8: 2NO+2NC)

LC1DT25 / LC1DT32 / LC1DT40 / LC1DT60A / LC1DT80A

LC1D128 / LC1D188 / LC1D258 / LC1D40008 / LC1D65008

2. Reversing Contactors LC2D (Built-in mechanical interlock, equivalent to two LC1D plus interlock)

LC2D09 / LC2D12 / LC2D18 / LC2D25 / LC2D32 / LC2D38 / LC2D40 / LC2D50 / LC2D65 / LC2D80 / LC2D95 / LC2D115 / LC2D150 / LC2D170

Beispiel: LC2D115F7 (115A, AC110V reversing contactor)

3. Coil Code Quick Reference (Üblich bei inländischen Projekten)

B7: AC24V 50/60Hz

E7: AC48V 50/60Hz

F7: AC110V 50/60Hz (your LC1D115F7)

M7: AC220V 50/60Hz

F7: AC380V 50/60Hz

V7: AC400V 50/60Hz

BD: DC24V

ED: DC48V

FD: DC110V

MD: DC220V

4. Terminal Variant Code (placed before voltage code)

3: Spring-cage terminal, z.B. LC1D1153F7

6: Ring terminal (cable lug), z.B. LC1D1156F7

5. Matched Thermal Relay Reference (for panel selection)

09~38A: LRD07…LRD35

40~95A: LRD33 series

115~170A: LRD43 series

205 und darüber: LRD48 series

Important End-of-Life Notice

Old LC1DxxB7/F7/M7/Q7/V7 series last supply: 31-Dec-2026

AEHE: 48–130V AC/DC wide voltage (direct replacement for B7, E7, F7)

AKUE: 100–250V AC/DC wide voltage (direct replacement for M7, P7)

Mounting dimension, cutout and auxiliary contacts are fully compatible, no cabinet drawing modification required