Schneider LC1D40 3-Pole AC Contactor

Schneider TeSysD / TeSys Deca series, 3-pole with 3 contactos NA principales. Designed for three-phase motors, climatización, bombas de agua, fans and other load control. It comes with built-in 1NO + 1CAROLINA DEL NORTE auxiliar contactos (NC es un contacto espejo para circuitos de seguridad.).

✅ Especificaciones principales

polacos: 3PAG (3 SIN contactos principales)

Rated operational current AC-3 @ 440V: 40 A

Matched motor power @ 380/400V: 18.5 kilovatios

Max operational voltage (ue) for power circuit: 690 V

Corriente térmica convencional (Ith): 60 A

Contactos auxiliares incorporados: 1NO (14) + 1CAROLINA DEL NORTE (22)

Montaje: 35 mm DIN rail or screw fixing

Dimensiones generales: W55 × H122 × D120 mm

Terminales: EverLink anti-loosening screw terminals (new version with suffix A)

Certificaciones: CCC, CEI 60947-4-1, UL, CSA, marine certification

✅ Model Suffix Definition (Ejemplo de modelo completo: LC1D40AM7C)

A: New Deca version (old version without A: LC1D40M7C, intercambiables directos)

METRO: 220 Bobina V CA (50/60 Hz)

F: 110 V y; q: 380 V y; B: 24 En DC; BD: estándar 24 Bobina VCC

7: 50/60 Hz universales; do: China domestic version

Common stock models:

LC1D40AM7C (220VACACIONES), LC1D40AF7C (110VACACIONES), LC1D40AQ7C (380VACACIONES), LC1D40ABD (24VCC)

✅ Matching Accessories

Relé de sobrecarga térmica: LRD3353C (adjustment range 23–32 A) para 18.5 motores kW

Bloque de contactos auxiliares: LA1DN (expand auxiliary contacts)

Enclavamiento mecánico: LA9D40 (for star-delta & forward/reverse interlock)

Supresor de sobretensiones de bobina: LA4DA

Time delay attachment, busbar connectors, etc..

✅ Selección & Reemplazo

1. Old-to-new replacement: LC1D40 → new LC1D40A, dimensiones idénticas, mounting holes and wiring, enchufar y usar.
2. Adjacent frame size: smaller LC1D32; larger LC1D50.
3. Economy alternative: Easypact D3N LC1N40.
4. Equivalente nacional: CJX2-4011.

✅ Aplicaciones típicas

aficionados, bombas de agua, compresores de aire, aire acondicionado central, transportadores, arrancadores estrella-triángulo, forward/reverse control cabinets (AC-3 motor duty); also for AC-1 resistive loads (elementos calefactores).

✅ Installation Instructions

Esfuerzo de torsión: Main circuit terminals = 5 Nuevo Méjico; control circuit = 1.7 Nuevo Méjico

Max ambient temperature: 60 °C; max operating frequency: 3600 ciclos/hora

DC coil version requires polarity: A1 = positive, A2 = negative

Matched thermal relay for LC1D40 (18.5kW @ 380V): LRD3353C, setting range 23～32 A, Clase 10A

1. LRD3353C Overload Current Setting Table

1) Setting Rule (Obligatorio)

Set the thermal relay knob to motor nameplate full-load current (FLA), NOT the 40A contactor clasificación.

380V 18.5kW 3-phase motor: corriente nominal ≈ 32 A → set knob directly to 32 A (escala completa).

For fan-type motors, heavy starting & trotar frecuentemente: set to 100%～105% of FLA; never exceed 115%.

Temperatura ambiente >40°C or enclosed cabinet: reduce setting by 5%～10%.

2) LC1D Series Contactor + LRD Thermal Relay Matching List

High-current older models (being upgraded to AKUE wide-voltage coil)

LC1D170, LC1D205, LC1D245, LC1D300, LC1D410

1. 4-Pole Models (LC1DT, AC-1 resistive loads: calefacción, 3-fase 4 hilos)

4SIN contactos principales (LC1DTxxA)

LC1DT20A, LC1DT25A, LC1DT32A, LC1DT40A, LC1DT60A, LC1DT80A

2NO + 2NC Main Contacts (LC1Dxx8)

LC1D128, LC1D188, LC1D258, LC1D40008, LC1D65008

III. Coil Voltage Suffix Code

AC Coils (50/60Hz universales, sufijo 7)

B7: 24 V y

E7: 48 V y

F7: 110 V y

M7: 220 V y (más común)

P7: 230 V y

P7: 380 V y

DC Coils (sufijo D)

BD: 24 En DC (standard DC coil)

DE: 48 En DC

Dios: 125 En DC

End-of-model Letters

C = Domestic China TeSys Deca version (local stock)

A = New EverLink anti-loosening terminals; no A = old terminal version

✅ Full stock model examples:

LC1D40AM7C (220VACACIONES), LC1D40AF7C (110VACACIONES), LC1D40AQ7C (380VACACIONES), LC1D40ABD (24VCC)

1. Contactores inversores (LC2D, Forward/Reverse Control)

LC2D09A, LC2D12A, LC2D18A, LC2D25A, LC2D32A, LC2D40A, LC2D50A, LC2D65A, LC2D80A, LC2D95A

Built-in mechanical + enclavamiento eléctrico; no extra LA9D40 required.

1. Full LRD Thermal Relay Matching List (for LC1D)
2. Low current range (0.1~32 A): LRD01C ~ LRD22C
3. 40A y superiores (23~104 A): LRD33 series

LRD3353C: 23–32 A → LC1D40A (18.5 kilovatios)

LRD3355C: 30–40 A → LC1D50A

LRD3357C: 37–50 A → LC1D65A

1. Reglas de reemplazo
2. Old LC1D40M7C → new LC1D40AM7C: totalmente intercambiables (misma huella, montaje & alambrado).
3. Older high-current LC1D115 / LC1D150 → upgrade to LC1D115AKUE / LC1D150AKUE (100–250V AC/DC wide-voltage coil).