Schneider LP1K0901BD Miniature DC Contactor

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

09: Rated current 9A under AC-3 duty

01: Integrato ausiliario contatto: 1 NC (Normalmente chiuso)

B.D: Tensione della bobina DC24V

Terminali: Morsetti a vite; Montaggio su guida DIN; overall width 45 mm

1. Specifiche elettriche principali

Circuito principale: 3-palo, 3 NESSUN contatto

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

AC-1 resistive load rating: 20UN

Tensione operativa massima: 690V e

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

Contatto ausiliario: Fixed built-in 1 NC

Montaggio: DIN rail or panel mounting

Front protection degree: IP20

Certificazioni: CCC, UL, CSA, RoHS, Premio verde

Vita meccanica: 10 milioni di operazioni; Vita elettrica (AC-3): 1.3 milioni di operazioni

Coppia di serraggio del terminale: 0.8~1.3 N·m

III. Applicazioni tipiche

Directly driven by PLC DC transistor outputs; piccoli tifosi, elettrovalvole, linee di trasporto, HVAC equipment, small power motor start-stop in compact control cabinets.

1. Differenze di modello & Opzioni di sostituzione
2. LP1K0910BD: Same rating, integrato 1 NO (Normalmente aperto) contatto ausiliario (most frequently confused model)
3. LP1K0901BD3: Spring-cage terminal variant (different wiring method)
4. LC1K0901M7: Stessa valutazione attuale, AC220V AC coil version, cannot be directly interchanged
5. Alternative domestiche: Chint NC1K, Delixi CJX2K miniature contactors; verify mounting dimensions and auxiliary contact configuration before replacement
6. Note importanti

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, 3P 9A, DC24V, Built-in 1NC) Casi di applicazione

Vantaggi fondamentali: DC24V coil, directly driven by PLC transistor outputs; integrato 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 & HVAC)

Carico: 380V three-phase centrifugal fans & ventilatori di scarico (0.75~4kW)

Logica di controllo: 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)

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

Vantaggi: 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 & 3Automazione C (Cibo & Electronic OEM)

Carico: Sectional belt conveyors, small drum motors, alimentatori di materiale, motori agitatori (≤4kW)

Logica di controllo: 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)

Condizioni operative: Ciclismo frequente (fino a 3,600 operazioni/ora). 10 million mechanical cycles fit continuous production lines; IP20 protection meets clean cabinet requirements for food workshops

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

Caso 3: Small Pump Stations & Circulating Water Systems (Trattamento delle acque & Constant Temperature Tanks)

Carico: 380V circulation pumps, chemical dosing agitators, pompe dell'acqua di raffreddamento

Logica di controllo: [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)

6Una cornice (06)

LP1K0610BD (6UN, 1NO, 24VCC)

LP1K0601BD (6UN, 1NC, 24VCC)

LP1K0610BD3 (terminali a molla + soppressione delle sovratensioni incorporata)

LP1K0601BD3 (terminali a molla + soppressione delle sovratensioni incorporata)

9Una cornice (09, your model series)

LP1K0910BD (9UN, 1NO, 24VCC)

LP1K0901BD (9UN, 1NC, 24VCC, your part number)

LP1K0910BD3 (terminali a molla + soppressione delle sovratensioni incorporata)

LP1K0901BD3 (terminali a molla + soppressione delle sovratensioni incorporata)

12Una cornice (12)

LP1K1210BD (12UN, 1NO, 24VCC)

LP1K1201BD (12UN, 1NC, 24VCC)

LP1K1210BD3 / LP1K1201BD3

16Una cornice (16)

LP1K1610BD (16UN, 1NO, 24VCC)

LP1K1601BD (16UN, 1NC, 24VCC)

LP1K1610BD3 / LP1K1601BD3

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

3. LP2K DC Reversing Contactors (Avanti/Indietro, built-in mechanical interlock)

9A popular models

LP2K0910BD (9UN, 1NO, 24VDC reversing contactor)

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

LP2K0901BD3 (terminali a molla + soppressione delle sovratensioni incorporata)

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

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

LC1K Single AC Contactors (examples)

LC1K0610B7, LC1K0601B7 (AC24V)

LC1K0910M7, LC1K0901M7 (AC220V)

LC2K AC Reversing Contactors

LC2K0901B7, LC2K1201M7

5. TeSys K Matching Accessories
6. Blocco contatti ausiliari: LA1K (1NA+1NC, snap-on top mounting)
7. Interblocco meccanico: LA2K (for DIY forward/reverse with two LP1K units)
8. Relè termici (direct snap-on bottom): LR2K03… (0.1~8A range, matches 06/09A contactors)
9. Soppressione delle sovratensioni: BD3 versions have built-in suppression; standard BD coils require external 1N4007 freewheeling diode
10. Guida alla selezione rapida
11. Need RUN feedback (NESSUN contatto) → select 10 (LP1K0910BD)
12. Need STOP feedback (Contatto NC) → select 01 (LP1K0901BD, your current model)
13. PLC transistor output: prefer BD3 (soppressione delle sovratensioni incorporata) to eliminate external diodes
14. Vibration-prone conveyor applications: choose spring-cage terminal suffix 3 (BD3)