Schneider LP1K0901BD Miniature DC Contactor

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

09: Rated current 9A under AC-3 duty

01: Integrado auxiliar contato: 1 NC (Normalmente fechado)

BD: Tensão da bobina DC24V

Terminais: Terminais de fixação de parafuso; Montagem em trilho DIN; overall width 45 milímetros

1. Principais especificações elétricas

Circuito principal: 3-pólo, 3 SEM contatos

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

AC-1 resistive load rating: 20UM

Tensão operacional máxima: 690V e

Bobina: CC24V, bobina CC padrão (non-wide voltage)

Contato auxiliar: Fixed built-in 1 NC

Montagem: Montagem em trilho DIN ou painel

Front protection degree: IP20

Certificações: CCC, UL, CSA, RoHS, Prêmio Verde

Vida mecânica: 10 milhões de operações; Vida elétrica (AC-3): 1.3 milhões de operações

Torque de aperto dos terminais: 0.8~1.3 N·m

III. Aplicações Típicas

Directly driven by PLC DC transistor outputs; pequenos fãs, válvulas solenóides, linhas transportadoras, Equipamento HVAC, small power motor start-stop in compact control cabinets.

1. Diferenças de modelo & Opções de substituição
2. LP1K0910BD: Mesma classificação, embutido 1 NÃO (Normalmente aberto) contato auxiliar (most frequently confused model)
3. LP1K0901BD3: Spring-cage terminal variant (different wiring method)
4. LC1K0901M7: Mesma classificação atual, AC220V AC coil version, cannot be directly interchanged
5. Alternativas domésticas: Chint NC1K, Delixi CJX2K miniature contactors; verify mounting dimensions and auxiliary contact configuration before replacement
6. Notas importantes

Bobina CC; 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, 3Pergunta 9A, CC24V, Built-in 1NC) Casos de aplicação

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

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

Carregar: 380V three-phase centrifugal fans & exaustores (0.75~4kW)

Lógica de controle: 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

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

Caso 2: Segmented Conveyor Drives for Packaging & 3C Automation (Comida & Electronic OEM)

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

Lógica de controle: 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)

Condições operacionais: Ciclismo frequente (até 3,600 operações/hora). 10 million mechanical cycles fit continuous production lines; IP20 protection meets clean cabinet requirements for food workshops

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

Caso 3: Small Pump Stations & Circulating Water Systems (Tratamento de Água & Constant Temperature Tanks)

Carregar: 380V circulation pumps, chemical dosing agitators, bombas de água de resfriamento

Lógica de controle: [text truncated in original draft]

Full TeSys K Contactor Model List

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

B7=CA24V、E7=CA48V、F7=AC110V、M7=AC220V、P7=AC230V

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

6Um quadro (06)

LP1K0610BD (6UM, 1NÃO, 24CCV)

LP1K0601BD (6UM, 1NC, 24CCV)

LP1K0610BD3 (terminais de mola + supressão de surto integrada)

LP1K0601BD3 (terminais de mola + supressão de surto integrada)

9Um quadro (09, your model series)

LP1K0910BD (9UM, 1NÃO, 24CCV)

LP1K0901BD (9UM, 1NC, 24CCV, your part number)

LP1K0910BD3 (terminais de mola + supressão de surto integrada)

LP1K0901BD3 (terminais de mola + supressão de surto integrada)

12Um quadro (12)

LP1K1210BD (12UM, 1NÃO, 24CCV)

LP1K1201BD (12UM, 1NC, 24CCV)

LP1K1210BD3 / LP1K1201BD3

16Um quadro (16)

LP1K1610BD (16UM, 1NÃO, 24CCV)

LP1K1601BD (16UM, 1NC, 24CCV)

LP1K1610BD3 / LP1K1601BD3

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

3. LP2K DC Reversing Contactors (Avançar/Retroceder, built-in mechanical interlock)

9A popular models

LP2K0910BD (9UM, 1NÃO, 24VDC reversing contactor)

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

LP2K0901BD3 (terminais de mola + supressão de surto integrada)

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

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

LC1K Single AC Contactors (exemplos)

LC1K0610B7, LC1K0601B7 (CA24V)

LC1K0910M7, LC1K0901M7 (AC220V)

LC2K AC Reversing Contactors

LC2K0901B7, LC2K1201M7

5. TeSys K Matching Accessories
6. Bloco de contato auxiliar: LA1K (1NÃO+1NC, snap-on top mounting)
7. Intertravamento mecânico: LA2K (for DIY forward/reverse with two LP1K units)
8. Relés de sobrecarga térmica (direct snap-on bottom): LR2K03… (0.1~8A range, matches 06/09A contactors)
9. Supressão de surto: BD3 versions have built-in suppression; standard BD coils require external 1N4007 freewheeling diode
10. Guia de seleção rápida
11. Need RUN feedback (SEM contato) → select 10 (LP1K0910BD)
12. Need STOP feedback (Contato NC) → select 01 (LP1K0901BD, your current model)
13. PLC transistor output: prefer BD3 (supressão de surto integrada) to eliminate external diodes
14. Vibration-prone conveyor applications: choose spring-cage terminal suffix 3 (BD3)