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 AC/DC

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

LAD6K10M: 220~240V AC/DC

Funcţie: 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.

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

Contactoare compatibili

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

Specificații electrice cheie

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

Consumul de energie: 25VA (AC); 30W (DC)

Tensiunea nominală de izolație Ui: 690V (IEC 60947-5-1)

Rezistenta mecanica: 500,000 operațiuni

Frecvența maximă de funcționare: 1200 cicluri/oră

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

Minimum pulse width: ≥100ms for AC circuits; ≥250ms for DC circuits

Clasa de protectie: IP2X

Temperatura ambiantă de funcționare: -25℃ ~ +55℃

Greutate netă: 0.07kg

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

Operating Logic (Critic)

1. Închidere: 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. Opening: 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.

Selecţie & Informații de înlocuire

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

Ghid de depanare

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. Arsarea bobinei: Release coil kept energized longer than 10s (the most common root cause).

Aplicații tipice

Fire-fighting pumps, fani, 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)

Înălţime: 44 mm

Lăţime: 44 mm

Protruding depth (front extension): 47 mm

Greutate netă: 0.07kg (manufacturer nominal); field measurement approx. 0.088kg (within tolerance)

Metoda de montare: 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 AC/DC

LAD6K10E: 48V AC/DC

LAD6K10F: 110/127V AC/DC (Current Model)

LAD6K10M: 220/240V AC/DC

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. Contacte auxiliare: LADN11 (1NU+1NC), LADN20, LADN02
2. Timing heads: LADT0, LADT2, LADT4 (ON-delay)
3. Electric + mechanical interlock: LA9D0990 (for reversing contactor pairs)
4. Coil surge suppression: 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.