Schneider LAD6K10F Contactor Front Mechanical Latching Module

LAD6K10F = TeSys Deca front-mounted mechanical latching module (mechanical latch accessory) for contactors. Release coil voltage: 110…127 V AC/DC (110VAC specification as required)

Part Number Rule: LAD6K10 + voltage suffix

LAD6K10B: 24VCA/CC

LAD6K10F: 110~127V AC/DC (matches your 110VAC requirement)

LAD6K10M: 220~240 V CA/CC

Función: Clipped onto the front face of LC1D contactors to achieve pulse closing + mechanical holding.

1. Send a short pulse to the contactor main coil for closing.
2. The mechanical latch locks the contactor, and the main coil can be de-energized while the main circuit remains closed.
3. To open the circuit, send a short pulse to the E1/E2 release coil on LAD6K10; manual unlock is also available via the pushbutton.

Objetivo: For long-term closed circuits, continuous power supply to the contactor coil is eliminated, reducing power consumption and coil overheating.

Contactores compatibles

LC1D09 ~ LC1D80A, LC1DT20~DT80A, CAD control relays (excluding low-power coil versions)

Especificaciones eléctricas clave

Release coil voltage: 110…127 V AC/DC, 50/60Hz

Consumo de energía: 25Virginia (C.A.); 30W. (corriente continua)

Tensión nominal de aislamiento Ui: 690V (CEI 60947-5-1)

Resistencia mecánica: 500,000 operaciones

Frecuencia máxima de funcionamiento: 1200 ciclos/hora

Coil energization limit: Only pulse operation permitted; maximum continuous energization ≤ 10 artículos de segunda clase. Continuous power supply will burn out the release coil.

Ancho de pulso mínimo: ≥100ms for AC circuits; ≥250ms for DC circuits

Clase de protección: IP2X

Temperatura ambiente de funcionamiento: -25℃ ~ +55 ℃

Peso neto: 0.07kilos

Montaje: Tool-free snap-on front fit; terminals E1, E2 (release coil of latch module)

Lógica operativa (Crítico)

1. Cierre: Apply a short pulse to contactor main coil A1/A2 → contactor closes, LAD6K10 mechanical latch engages → main coil power can be cut off, main circuit stays ON.
2. Apertura: Send a short pulse to E1/E2 (110VAC release coil) → mechanical latch trips → contactor opens. A manual reset button is provided for local unlocking.

⚠️ Do not energize the contactor main coil and the latch release coil simultaneously.

Selección & Información de reemplazo

1. Larger-size counterpart: LA6DK20, compatible with LC1D80~D150 high-current contactors. LAD6K10 only covers up to LC1D80A.
2. Alternativas domésticas: Mechanical latch attachments from Chint/Delixi with identical mounting dimensions and control logic; verify terminal definitions and coil power consumption before replacement.
3. Spare part note: LAD6K10F is sold separately as an accessory; contactor body is not included.

Guía de solución de problemas

1. Contactor closes but cannot stay latched: Mechanical latch jamming, insufficient pulse duration, excessive wear on contactor stroke.
2. Electric release fails: Loose E1/E2 wiring, burnt coil, supply voltage outside 110~127V range; check that the pulse width is long enough.
3. Quemado de bobina: Release coil kept energized longer than 10s (the most common root cause).

Aplicaciones típicas

Fire-fighting pumps, fans, bus tie breakers, and other power circuits requiring prolonged closed status, to cut continuous coil power and reduce heating.

Physical Dimensions of LAD6K10F (Mechanical Latching Module)

Altura: 44 milímetros

Ancho: 44 milímetros

Protruding depth (front extension): 47 milímetros

Peso neto: 0.07kilos (manufacturer nominal); field measurement approx. 0.088kilos (within tolerance)

Método de montaje: Front snap-on fit directly onto LC1D contactor front face. No increase in contactor width; only adds forward depth.

Cabinet Cutout & Depth Reference

(Omitted redundant duplicated content; below is the full model list in English)

1. Full Model List of Mechanical Latching Accessories (Matching LC1D Series)

① LAD6K10 Series (For LC1D09～LC1D80: LC1D09/D25/D40/D65/D80)

LAD6K10B: 24VCA/CC

LAD6K10E: 48VCA/CC

LAD6K10F: 110/127VCA/CC (Modelo actual)

LAD6K10M: 220/240VCA/CC

LAD6K10U: 256~277V AC/DC

② LA6DK20 Series (For LC1D80～LC1D150 high-current contactors)

LA6DK20B / mi / F / METRO / Ud. (same voltage suffix codes above)

1. Combined Model Table: LC1D + LAD6K10F (110V Version for Selection)

III. Full List of Common TeSys D Accessories

1. Contactos auxiliares: LADN11 (1NO+1NC), LADN20, LADN02
2. Timing heads: LADT0, LADT2, LADT4 (retardo de encendido)
3. Eléctrico + enclavamiento mecánico: LA9D0990 (for reversing contactor pairs)
4. Supresión de sobretensiones en la bobina: LAD9R1V (amortiguador RC)
5. Terminal protective cover: LAD965
6. Restricciones de uso críticas
7. LAD6K10F only supports up to LC1D80; LA6DK20 must be used for LC1D95 and larger models.
8. The E1/E2 release coil must only receive pulse signals (≥100ms). Continuous energization will burn out the coil.
9. Domestic models end with suffix C; imported models have no suffix C. They share identical dimensions and are fully interchangeable with LAD6K10F.