Schneider LADN20 Auxiliary Contact Block

モデル: LADN20

ブランド: シュナイダーエレクトリック

製品シリーズ: Matching accessories for TeSys D / TeSys Deca contactors

製品タイプ: Front snap-on instantaneous 補助接点ブロック

接点構成: 2いいえ (2 Normally Open contacts, no Normally Closed contacts)

取付方法: Direct snap-fit on contactor front face, tool-free installation

Applicable Contactors: LC1D09~LC1D150, CAD control relays, LC1F / CR1F series contactors

モデルコードの内訳
LADN: General prefix for front-mounted auxiliary contacts of TeSys D series
2: Total number of contact circuits = 2
0: Number of NC (通常閉) contacts = 0

Full definition: 2 通常開, 0 通常閉補助接点

Universal naming rule for the same series:

LADN02: 0いいえ, 2ノースカロライナ州

LADN11: 1いいえ, 1ノースカロライナ州

LADN22: 2いいえ, 2ノースカロライナ州

端子マーク & Wiring Definition

Two independent NO circuits with standard terminal numbers:

1st NO circuit: 53 (入力), 54 (出力)

2nd NO circuit: 63 (入力), 64 (出力)

Terminal structure: ネジ締め端子, 締め付けトルク 1.7 N・m

Compatible wire cross-sections:

Single solid wire / ferrule-equipped flexible wire: 1~4 mm²

Two parallel wires: 1~2.5 mm²

Core Electrical Specifications

4.1 定格絶縁電圧 Ui

690 V (IEC規格); UL/CSA certified for 600 V

4.2 従来の熱電流 Ith

10 あ (ambient temperature 60°C)

4.3 AC-15 AC Control Load (電磁弁 / Coils / Indicator Lamps)

120 Vと: 6 あ

230 Vと: 3 あ

400 Vと: 1.8 あ

690 Vと: 1.04 あ

4.4 DC-13 DC Inductive Load

125 ワシントンDCで: 0.55 あ

600 ワシントンDCで: 0.1 あ

4.5 Minimum Operating Condition (Suitable for Weak Signals)

Minimum switching voltage: 17 V; Minimum switching current: 5 ミリアンペア

4.6 Contact Operation Timing

No overlap time between make and break: 1.5 MS (NO and NC contacts never conduct simultaneously)

4.7 保護 & 環境パラメータ

保護クラス: IP20 (for indoor cabinet use only)

動作温度: -25℃～+60℃

機械的寿命: ≥ 30 100万操作

電気的寿命 (under standard load): ≥ 1 100万操作

4.8 寸法 & 重さ

寸法: 48 (H) × 26 (W) × 42 (D) mm; Net weight ≈ 30 g

認証 & 規格

認証: CCC, CE, UL, CSA, EAC, UKCA

準拠規格: ギガバイト/トン 14048.5, IEC 60947-5-1, で 50012

機能 & アプリケーションシナリオ
Motor Start-Stop Feedback: Two independent passive NO signals after contactor closure, sent to PLC, indicator lamps and upper computer for operating status collection
Expansion of Electrical Interlocks: Add interlock contacts for dual-motor and forward/reverse control circuits
Multi-channel Alarm Output: One circuit for local panel lamps, one for remote control cabinet signals
Control Circuit Expansion: Supplement auxiliary contacts when factory-built contacts are insufficient (LC1D standard configuration only includes 1NO+1NC)

Applicable Industries: 工作機械, 空調設備, ウォーターポンプ, ファン, automatic production line control cabinets

Selection Table for LADN Front-Mounted Contacts of the Same Series

モデル	接点構成	コアアプリケーション
LADN20	2いいえ	Dual-channel operation feedback, no NC signal required
LADN02	2ノースカロライナ州	Fault shutdown and open-circuit status detection
LADN11	1NO+1NC	One operation signal + one fault signal (most universal)
LADN22	2NO+2NC	Multi-signal collection and complex interlock circuits

インストール & Replacement Instructions
インストール: Align with the front slot of the contactor and press down until a snap sound is heard for locking; for removal, pinch both side latches and pull upward
Installation Limit: A single LC1D contactor can be fitted with maximum 1 front LADN contact block. The LAD8N series side-mount modules are required for additional contacts
代替モデル

Domestic equivalents with identical functions: Delixi F4-20, Chint F4-20

Schneider side expansion contacts: LAD8N20 (side-mounted 2NO contacts)

Strict Usage Prohibitions
Not allowed for main power circuits; only applicable to control signals and small coil loads (AC-15 / DC-13)
Forbidden to operate above the rated insulation voltage of 690 V
Cannot be exposed outdoors or in humid unprotected environments (IP20 rating limited to cabinet interior)
Do not connect multiple 4 mm² wires to one single terminal; maximum cross-section for parallel wiring is 2.5 mm²

Full Application Fields of Schneider LADN20 Auxiliary Contact Block

一般産業用オートメーション
Conveying Line Equipment

Collect contactor status for belt conveyors, roller lines, transfer machines and lifting positioning mechanisms. Two NO circuits separately transmit local lamp signals and operation data to PLC.

Custom Non-standard Automation Machines

Expand original contactor contacts on assembly machines, inspection equipment and stamping loading/unloading machines to upload equipment running status remotely.

Robot Supporting Control Cabinets

Monitor solenoid valve circuits for robot external axes and fixture clamping; two isolated passive signals avoid mutual interference.

Machine Tool Processing Industry (主なアプリケーションシナリオ)
CNC Lathes, Machining Centers, Milling Machines

Expand contacts for spindle motors, cooling pumps and chip conveyors. One signal feeds local panel running lamps, the other transmits ready signals to the machine tool system.

Grinding Machines & Drill-Tap Centers

Collect start-stop status of lubrication pumps and hydraulic stations to meet the demand for synchronous multi-signal output on machine tools.

Stamping & Sheet Metal Machines

Realize status interlock and signal upload for main hydraulic motors and feeding motors.

空調設備, 給水 & 排水, Building Electromechanical Systems
ファン & Water Pump Control Boxes

For air conditioning fans, 冷却塔ファン, circulating pumps and sewage pumps, two NO contacts deliver local indication signals and communication data to building BA systems respectively.

Central Air Conditioning Units

Expand contact terminals for chillers and condensate pumps for remote building monitoring.

Fire-fighting Supporting Equipment

Upload operating status of smoke exhaust fans and sprinkler pumps to fire alarm control panels.

昇降装置, ロジスティクス & Warehousing Machinery
Overhead Cranes & Electric Hoist Control Cabinets

Collect running signals of lifting, cross-travel and long-travel contactors. Two signal channels serve local display and upper warehouse management systems separately.

Automated Warehouses & Stackers

Transmit status feedback of traveling motors and fork lifting motors for stacker safety interlock judgment.

エネルギー, 空調設備 & Environmental Protection Equipment
Air Compressor & Vacuum Pump Control Cabinets

Monitor main loading motors and cooling fans; upload operation data to energy management systems for runtime statistics.

Sewage Treatment Equipment

Multi-channel status collection for aeration fans, dosing pumps and sludge transfer pumps.

PV Auxiliary Equipment

Output start-stop signals for cooling fans and circulating water pumps.

Rubber & プラスチック, 包装 & 印刷業
射出成形 & Extrusion Machines

Transmit operation feedback of screw motors, mold temperature machine water pumps and conveyor belts.

包装 & Printing Machines

Two independent signal outputs for film feeding and winding motors to distinguish local alarm and remote monitoring signals.

鉄道交通 & EV Charging Pile Supporting Systems
Status collection for charging pile cooling fans and main contactors
Signal expansion for station ventilation and water pump electromechanical control cabinets
Application Matching Features (Matching LADN20’s 2NO-only characteristic)

Universal requirement across all industries: only collect power-on running status without open-circuit fault signals; two isolated passive switching signals with separate grounding and no voltage conflict.

Select LADN11 (1NO+1NC) if both running and shutdown fault signals need to be collected simultaneously.