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: 24V CA/CC

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

LAD6K10M: 220~240 V CA/CC

Fonction: 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.

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

Contacteurs compatibles

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

Principales spécifications électriques

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

Consommation d'énergie: 25Virginie (CA); 30W (CC)

Tension assignée d'isolement Ui: 690V (CEI 60947-5-1)

Endurance mécanique: 500,000 opérations

Fréquence de fonctionnement maximale: 1200 cycles/heure

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

Largeur d'impulsion minimale: ≥100ms for AC circuits; ≥250ms for DC circuits

Classe de protection: IP2X

Température ambiante de fonctionnement: -25℃ ~ +55℃

Poids net: 0.07kilos

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

Logique de fonctionnement (Critique)

1. Clôture: 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. Ouverture: 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.

Sélection & Informations de remplacement

1. Larger-size counterpart: LA6DK20, compatible with LC1D80~D150 high-current contactors. LAD6K10 only covers up to LC1D80A.
2. Alternatives nationales: 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.

Guide de dépannage

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. Grillage de la bobine: Release coil kept energized longer than 10s (the most common root cause).

Applications typiques

Fire-fighting pumps, les 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)

Hauteur: 44 mm

Largeur: 44 mm

Protruding depth (front extension): 47 mm

Poids net: 0.07kilos (Nominal du fabricant); field measurement approx. 0.088kilos (within tolerance)

Méthode de montage: 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: 24V CA/CC

LAD6K10E: 48V CA/CC

LAD6K10F: 110/127V CA/CC (Current Model)

LAD6K10M: 220/240V CA/CC

LAD6K10U: 256~277V AC/DC

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

LA6DK20B / E / F / M. / U (same voltage suffix codes above)

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

III. Full List of Common TeSys D Accessories

1. Contacts auxiliaires: LADN11 (1NON+1NC), LADN20, LADN02
2. Timing heads: LADT0, LADT2, LADT4 (ON-delay)
3. Électrique + verrouillage mécanique: LA9D0990 (for reversing contactor pairs)
4. Suppression des surtensions de bobine: LAD9R1V (RC snubber)
5. Terminal protective cover: LAD965
6. Critical Usage Restrictions
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.