Schneider LP1K0901BD Miniature DC Contactor

LP1K: TeSys Kシリーズ, 直流 coil contactor (LC1K = AC coil version)

09: Rated current 9A under AC-3 duty

01: 内蔵 補助 接触: 1 ノースカロライナ州 (通常閉)

BD: コイル電圧 DC24V

端子: ネジクランプ端子; DINレール取付; overall width 45 mm

1. 主要な電気仕様

主回路: 3-ポール, 3 接点なし

AC-3 rating @ 440V: 9あ; controls 4kW (380V) モーター; 2.2kW (220V)

AC-1 resistive load rating: 20あ

Max operating voltage: 690Vと

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

補助接点: Fixed built-in 1 ノースカロライナ州

取り付け: DINレールまたはパネルへの取り付け

Front protection degree: IP20

認証: CCC, UL, CSA, RoHS, グリーンプレミアム

機械的寿命: 10 100万操作; 電気的寿命 (AC-3): 1.3 100万操作

端子締め付けトルク: 0.8~1.3 N·m

Ⅲ. 代表的な用途

Directly driven by PLC DC transistor outputs; 小型ファン, 電磁弁, コンベアライン, HVAC equipment, small power motor start-stop in compact control cabinets.

1. Model Differences & 交換オプション
2. LP1K0910BD: Same rating, 内蔵 1 いいえ (通常開) 補助接点 (most frequently confused model)
3. LP1K0901BD3: Spring-cage terminal variant (different wiring method)
4. LC1K0901M7: 同じ定格電流, AC220V AC coil version, cannot be directly interchanged
5. 国内代替品: Chint NC1K, Delixi CJX2K miniature contactors; verify mounting dimensions and auxiliary contact configuration before replacement
6. 重要な注意事項

DCコイル; 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 (テシスK, 3Q9A, DC24V, Built-in 1NC) 応用事例

Core advantages: DC24Vコイル, directly driven by PLC transistor outputs; 内蔵 1 NC contact for interlock and status feedback; 幅わずか45mm, ideal for dense OEM control cabinets; AC-3 rating for 4kW @ 380V

場合 1: Small Fan Control for AHU / Fresh Air Handling Units (Building BMS & 空調設備)

負荷: 380V three-phase centrifugal fans & 排気ファン (0.75～4kW)

制御ロジック: 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

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

場合 2: Segmented Conveyor Drives for Packaging & 3C Automation (食べ物 & Electronic OEM)

負荷: Sectional belt conveyors, small drum motors, material feeders, agitator motors (4kW以下)

制御ロジック: 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)

動作条件: 頻繁にサイクリングする (まで 3,600 稼働時間/時間). 10 million mechanical cycles fit continuous production lines; IP20 protection meets clean cabinet requirements for food workshops

リマインダー: Fit a freewheeling diode across the coil to suppress back EMF and prevent PLC transistor burnout

場合 3: Small Pump Stations & Circulating Water Systems (水処理 & Constant Temperature Tanks)

負荷: 380V circulation pumps, chemical dosing agitators, cooling water pumps

制御ロジック: [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)

6フレーム (06)

LP1K0610BD (6あ, 1いいえ, 24VDC)

LP1K0601BD (6あ, 1ノースカロライナ州, 24VDC)

LP1K0610BD3 (スプリング端子 + サージ抑制機能を内蔵)

LP1K0601BD3 (スプリング端子 + サージ抑制機能を内蔵)

9フレーム (09, your model series)

LP1K0910BD (9あ, 1いいえ, 24VDC)

LP1K0901BD (9あ, 1ノースカロライナ州, 24VDC, your part number)

LP1K0910BD3 (スプリング端子 + サージ抑制機能を内蔵)

LP1K0901BD3 (スプリング端子 + サージ抑制機能を内蔵)

12フレーム (12)

LP1K1210BD (12あ, 1いいえ, 24VDC)

LP1K1201BD (12あ, 1ノースカロライナ州, 24VDC)

LP1K1210BD3 / LP1K1201BD3

16フレーム (16)

LP1K1610BD (16あ, 1いいえ, 24VDC)

LP1K1601BD (16あ, 1ノースカロライナ州, 24VDC)

LP1K1610BD3 / LP1K1601BD3

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

3. LP2K DC Reversing Contactors (前進/後退, built-in mechanical interlock)

9A popular models

LP2K0910BD (9あ, 1いいえ, 24VDC reversing contactor)

LP2K0901BD (9あ, 1ノースカロライナ州, 24VDC reversing contactor)

LP2K0901BD3 (スプリング端子 + サージ抑制機能を内蔵)

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

4. LC1K / LC2K AC Miniature Contactors (ACコイル)

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 (1NO+1NC, snap-on top mounting)
7. 機械的インターロック: LA2K (for DIY forward/reverse with two LP1K units)
8. サーマルリレー (direct snap-on bottom): LR2K03… (0.1~8A range, matches 06/09A contactors)
9. サージ抑制: BD3 versions have built-in suppression; standard BD coils require external 1N4007 freewheeling diode
10. クイックセレクションガイド
11. Need RUN feedback (連絡なし) → select 10 (LP1K0910BD)
12. Need STOP feedback (NC contact) → select 01 (LP1K0901BD, your current model)
13. PLC transistor output: prefer BD3 (サージ抑制機能を内蔵) to eliminate external diodes
14. Vibration-prone conveyor applications: choose spring-cage terminal suffix 3 (BD3)