Schneider LP1K0901BD Miniature DC Contactor

LP1K: TeSys K series, DC coil contactor (LC1K = AC coil version)

09: Rated current 9A under AC-3 duty

01: Încorporat auxiliar contact: 1 NC (În mod normal închis)

BD: Coil voltage DC24V

Terminale: Borne cu clemă cu șurub; Montare pe șină DIN; overall width 45 mm

1. Specificații electrice cheie

Circuitul principal: 3-pol, 3 NU contacte

AC-3 rating @ 440V: 9O; controls 4kW (380V) motor; 2.2kW (220V)

AC-1 resistive load rating: 20O

Tensiune maximă de funcționare: 690V și

Bobina: DC24V, bobină DC standard (non-wide voltage)

Contact auxiliar: Fixed built-in 1 NC

Montare: Montare pe șină DIN sau pe panou

Front protection degree: IP20

Certificari: CCC, UL, CSA, RoHS, Green Premium

Durata de viata mecanica: 10 milioane de operațiuni; Durata de viata electrica (AC-3): 1.3 milioane de operațiuni

Cuplul de strângere a bornei: 0.8~1.3 N·m

III. Aplicații tipice

Directly driven by PLC DC transistor outputs; evantai mici, electrovalve, linii de transport, HVAC equipment, small power motor start-stop in compact control cabinets.

1. Diferențele de model & Opțiuni de înlocuire
2. LP1K0910BD: Same rating, încorporat 1 NU (Deschis normal) contact auxiliar (most frequently confused model)
3. LP1K0901BD3: Spring-cage terminal variant (different wiring method)
4. LC1K0901M7: Același rating actual, AC220V AC coil version, cannot be directly interchanged
5. Alternative interne: Chint NC1K, Delixi CJX2K miniature contactors; verify mounting dimensions and auxiliary contact configuration before replacement
6. Note importante

bobină DC; do not connect directly to AC24V supply

DC coils generate back EMF when de-energized. Add a freewheeling diode if driven by PLC transistor outputs to protect the output channel

LA1K auxiliary contact blocks can be snapped on top to expand additional auxiliary contacts

LP1K0901BD (TeSys K, 3Q 9A, DC24V, Built-in 1NC) Cazuri de aplicare

Core advantages: DC24V coil, directly driven by PLC transistor outputs; încorporat 1 NC contact for interlock and status feedback; only 45mm wide, ideal for dense OEM control cabinets; AC-3 rating for 4kW @ 380V

Caz 1: Small Fan Control for AHU / Fresh Air Handling Units (Building BMS & HVAC)

Încărca: 380V three-phase centrifugal fans & ventilatoare de evacuare (0.75~4kW)

Logica de control: DDC/PLC transistor output directly energizes the LP1K0901BD coil; main contacts switch the fan power; the built-in 1 NC contact sends stop feedback to BMS (NC closes when the contactor drops out to report fan shutdown)

Matching components: MCB upstream + LR2K thermal overload relay for motor protection; multiple contactors installed side-by-side on DIN rail to save cabinet space

Beneficii: No AC hum from DC coils, suitable for quiet computer room & air-conditioning control cabinets; fully compatible with 24VDC building control buses

Caz 2: Segmented Conveyor Drives for Packaging & 3C Automation (Mâncare & Electronic OEM)

Încărca: Sectional belt conveyors, small drum motors, material feeders, agitator motors (≤4kW)

Logica de control: PLC 24VDC outputs control jog or continuous operation; multiple LP1K0901BD units control individual conveyor sections; 1 NC contacts implement section interlock (next section cannot start if the upstream section is still running)

Condiții de funcționare: Ciclism frecvent (până la 3,600 operațiuni/oră). 10 million mechanical cycles fit continuous production lines; IP20 protection meets clean cabinet requirements for food workshops

Mementouri: Fit a freewheeling diode across the coil to suppress back EMF and prevent PLC transistor burnout

Caz 3: Small Pump Stations & Circulating Water Systems (Tratarea apei & Constant Temperature Tanks)

Încărca: 380V circulation pumps, chemical dosing agitators, pompe de apa de racire

Logica de control: [text truncated in original draft]

Full TeSys K Contactor Model List

1. Coil Voltage Code for AC Models (LC1K / LC2K)

B7=AC24V、E7=AC48V、F7=AC110V、M7=AC220V、P7=AC230V

2. LP1K DC Single Contactor (3P, PLC DC24V Preferred)

6Un cadru (06)

LP1K0610BD (6O, 1NU, 24VDC)

LP1K0601BD (6O, 1NC, 24VDC)

LP1K0610BD3 (terminale cu arc + suprimarea supratensiunii încorporată)

LP1K0601BD3 (terminale cu arc + suprimarea supratensiunii încorporată)

9Un cadru (09, your model series)

LP1K0910BD (9O, 1NU, 24VDC)

LP1K0901BD (9O, 1NC, 24VDC, your part number)

LP1K0910BD3 (terminale cu arc + suprimarea supratensiunii încorporată)

LP1K0901BD3 (terminale cu arc + suprimarea supratensiunii încorporată)

12Un cadru (12)

LP1K1210BD (12O, 1NU, 24VDC)

LP1K1201BD (12O, 1NC, 24VDC)

LP1K1210BD3 / LP1K1201BD3

16Un cadru (16)

LP1K1610BD (16O, 1NU, 24VDC)

LP1K1601BD (16O, 1NC, 24VDC)

LP1K1610BD3 / LP1K1601BD3

Replace BD with ED=48VDC, FD=110VDC, MD=220VDC for other coil voltages.

3. LP2K DC Reversing Contactors (Înainte/înapoi, built-in mechanical interlock)

9A popular models

LP2K0910BD (9O, 1NU, 24VDC reversing contactor)

LP2K0901BD (9O, 1NC, 24VDC reversing contactor)

LP2K0901BD3 (terminale cu arc + suprimarea supratensiunii încorporată)

Other current ratings follow the same rule: LP2K0601BD, LP2K1201BD, etc.

4. LC1K / LC2K AC Miniature Contactors (Bobina AC)

LC1K Single AC Contactors (examples)

LC1K0610B7, LC1K0601B7 (AC24V)

LC1K0910M7, LC1K0901M7 (AC220V)

LC2K AC Reversing Contactors

LC2K0901B7, LC2K1201M7

5. TeSys K Matching Accessories
6. Auxiliary contact block: LA1K (1NU+1NC, snap-on top mounting)
7. Interblocare mecanică: LA2K (for DIY forward/reverse with two LP1K units)
8. Relee termice de suprasarcină (direct snap-on bottom): LR2K03… (0.1~8A range, matches 06/09A contactors)
9. Suprimarea supratensiunii: BD3 versions have built-in suppression; standard BD coils require external 1N4007 freewheeling diode
10. Ghid de selecție rapidă
11. Need RUN feedback (NO contact) → select 10 (LP1K0910BD)
12. Need STOP feedback (contact NC) → select 01 (LP1K0901BD, your current model)
13. PLC transistor output: prefer BD3 (suprimarea supratensiunii încorporată) to eliminate external diodes
14. Vibration-prone conveyor applications: choose spring-cage terminal suffix 3 (BD3)