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: Intégré auxiliaire contact: 1 Caroline du Nord (Normalement fermé)

BD: Coil voltage DC24V

Terminaux: Bornes à vis-étrier; Montage sur rail DIN; overall width 45 mm

1. Principales spécifications électriques

Circuit principal: 3-pôle, 3 AUCUN contact

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

AC-1 resistive load rating: 20UN

Tension de fonctionnement maximale: 690V et

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

Contact auxiliaire: Fixed built-in 1 Caroline du Nord

Montage: DIN rail or panel mounting

Front protection degree: IP20

Certifications: CCC, UL, ASC, RoHS, Prime verte

Durée de vie mécanique: 10 millions d'opérations; Durée de vie électrique (AC-3): 1.3 millions d'opérations

Couple de serrage des bornes: 0.8~1.3 N·m

III. Applications typiques

Directly driven by PLC DC transistor outputs; petits ventilateurs, électrovannes, lignes de convoyeurs, Équipement CVC, small power motor start-stop in compact control cabinets.

1. Différences de modèles & Options de remplacement
2. LP1K0910BD: Same rating, intégré 1 NON (Normalement ouvert) contact auxiliaire (most frequently confused model)
3. LP1K0901BD3: Spring-cage terminal variant (different wiring method)
4. LC1K0901M7: Même note actuelle, AC220V AC coil version, cannot be directly interchanged
5. Alternatives nationales: Chint NC1K, Delixi CJX2K miniature contactors; verify mounting dimensions and auxiliary contact configuration before replacement
6. Remarques importantes

Bobine 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, 3Question 9A, DC24V, Built-in 1NC) Cas de candidature

Avantages essentiels: Bobine DC24V, directly driven by PLC transistor outputs; intégré 1 NC contact for interlock and status feedback; seulement 45 mm de large, ideal for dense OEM control cabinets; AC-3 rating for 4kW @ 380V

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

Charger: 380V three-phase centrifugal fans & ventilateurs d'extraction (0.75~4 kW)

Logique de contrôle: 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)

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

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

Cas 2: Segmented Conveyor Drives for Packaging & 3Automatisation C (Nourriture & Electronic OEM)

Charger: Sectional belt conveyors, small drum motors, alimentateurs de matériaux, moteurs d'agitateurs (≤4kW)

Logique de contrôle: 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)

Operating conditions: Frequent cycling (jusqu'à 3,600 opérations/heure). 10 million mechanical cycles fit continuous production lines; IP20 protection meets clean cabinet requirements for food workshops

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

Cas 3: Small Pump Stations & Circulating Water Systems (Traitement de l'eau & Constant Temperature Tanks)

Charger: 380V circulation pumps, chemical dosing agitators, pompes à eau de refroidissement

Logique de contrôle: [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 cadre (06)

LP1K0610BD (6UN, 1NON, 24VCC)

LP1K0601BD (6UN, 1Caroline du Nord, 24VCC)

LP1K0610BD3 (bornes à ressort + suppression de surtension intégrée)

LP1K0601BD3 (bornes à ressort + suppression de surtension intégrée)

9Un cadre (09, your model series)

LP1K0910BD (9UN, 1NON, 24VCC)

LP1K0901BD (9UN, 1Caroline du Nord, 24VCC, your part number)

LP1K0910BD3 (bornes à ressort + suppression de surtension intégrée)

LP1K0901BD3 (bornes à ressort + suppression de surtension intégrée)

12Un cadre (12)

LP1K1210BD (12UN, 1NON, 24VCC)

LP1K1201BD (12UN, 1Caroline du Nord, 24VCC)

LP1K1210BD3 / LP1K1201BD3

16Un cadre (16)

LP1K1610BD (16UN, 1NON, 24VCC)

LP1K1601BD (16UN, 1Caroline du Nord, 24VCC)

LP1K1610BD3 / LP1K1601BD3

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

3. LP2K DC Reversing Contactors (Avant/Arrière, built-in mechanical interlock)

9A popular models

LP2K0910BD (9UN, 1NON, 24VDC reversing contactor)

LP2K0901BD (9UN, 1Caroline du Nord, 24VDC reversing contactor)

LP2K0901BD3 (bornes à ressort + suppression de surtension intégrée)

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

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

LC1K Single AC Contactors (examples)

LC1K0610B7, LC1K0601B7 (AC24V)

LC1K0910M7, LC1K0901M7 (AC220V)

LC2K AC Reversing Contactors

LC2K0901B7, LC2K1201M7

5. TeSys K Matching Accessories
6. Bloc de contacts auxiliaires: LA1K (1NON+1NC, snap-on top mounting)
7. Verrouillage mécanique: LA2K (for DIY forward/reverse with two LP1K units)
8. Relais de surcharge thermique (direct snap-on bottom): LR2K03… (0.1~8A range, matches 06/09A contactors)
9. Suppression des surtensions: BD3 versions have built-in suppression; standard BD coils require external 1N4007 freewheeling diode
10. Guide de sélection rapide
11. Need RUN feedback (AUCUN contact) → select 10 (LP1K0910BD)
12. Need STOP feedback (Contact NF) → select 01 (LP1K0901BD, votre modèle actuel)
13. PLC transistor output: prefer BD3 (suppression de surtension intégrée) to eliminate external diodes
14. Vibration-prone conveyor applications: choose spring-cage terminal suffix 3 (BD3)