Schneider LADN20 Auxiliary Contact Block

نموذج: لادن20

ماركة: شنايدر إلكتريك

سلسلة المنتجات: Matching accessories for TeSys D / TeSys Deca contactors

نوع المنتج: Front snap-on instantaneous auxiliary contact block

تكوين الاتصال: 2لا (2 Normally Open contacts, no Normally Closed contacts)

طريقة التركيب: Direct snap-fit on contactor front face, tool-free installation

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

2. انهيار رمز النموذج
3. LADN: General prefix for front-mounted auxiliary contacts of TeSys D series
4. 2: Total number of contact circuits = 2
5. 0: Number of NC (مغلق عادة) contacts = 0

Full definition: 2 مفتوح عادة, 0 Normally Closed auxiliary contacts

Universal naming rule for the same series:

لادن02: 0لا, 2نورث كارولاينا

LADN11: 1لا, 1نورث كارولاينا

LADN22: 2لا, 2نورث كارولاينا

3. Terminal Markings & Wiring Definition

Two independent NO circuits with standard terminal numbers:

1st NO circuit: 53 (مدخل), 54 (الإخراج)

2nd NO circuit: 63 (مدخل), 64 (الإخراج)

Terminal structure: Screw-clamp terminals, تشديد عزم الدوران 1.7 ن · م

Compatible wire cross-sections:

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

Two parallel wires: 1~2.5 mm²

4. Core Electrical Specifications

4.1 Rated Insulation Voltage Ui

690 V (معيار اللجنة الانتخابية المستقلة); UL/CSA certified for 600 V

4.2 Conventional Thermal Current Ith

10 أ (ambient temperature 60°C)

4.3 AC-15 AC Control Load (صمامات الملف اللولبي / Coils / Indicator Lamps)

120 الخامس و: 6 أ

230 الخامس و: 3 أ

400 الخامس و: 1.8 أ

690 الخامس و: 1.04 أ

4.4 DC-13 DC Inductive Load

125 في العاصمة: 0.55 أ

600 في العاصمة: 0.1 أ

4.5 Minimum Operating Condition (Suitable for Weak Signals)

Minimum switching voltage: 17 V; Minimum switching current: 5 أماه

4.6 Contact Operation Timing

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

4.7 حماية & المعلمات البيئية

فئة الحماية: IP20 (for indoor cabinet use only)

درجة حرارة التشغيل: -25درجه مئوية ~ +60 درجه مئوية

الحياة الميكانيكية: ≥ 30 مليون عملية

الحياة الكهربائية (under standard load): ≥ 1 مليون عملية

4.8 أبعاد & وزن

أبعاد: 48 (ح) × 26 (دبليو) × 42 (د) مم; Net weight ≈ 30 ز

5. الشهادات & المعايير

الشهادات: سي سي سي, م, أول, وكالة الفضاء الكندية, مجموعة شرق أفريقيا, UKCA

Compliant Standards: جيجابايت/ت 14048.5, اللجنة الانتخابية المستقلة 60947-5-1, في 50012

6. وظائف & سيناريوهات التطبيق
7. Motor Start-Stop Feedback: Two independent passive NO signals after contactor closure, sent to PLC, indicator lamps and upper computer for operating status collection
8. Expansion of Electrical Interlocks: Add interlock contacts for dual-motor and forward/reverse control circuits
9. Multi-channel Alarm Output: One circuit for local panel lamps, one for remote control cabinet signals
10. Control Circuit Expansion: Supplement auxiliary contacts when factory-built contacts are insufficient (LC1D standard configuration only includes 1NO+1NC)

Applicable Industries: أدوات الآلة, التدفئة والتهوية وتكييف الهواء, مضخات المياه, المشجعين, automatic production line control cabinets

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

8. تثبيت & Replacement Instructions
9. تثبيت: 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
10. 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
11. نماذج بديلة

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

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

9. Strict Usage Prohibitions
10. Not allowed for main power circuits; only applicable to control signals and small coil loads (ايه سي-15 / دي سي-13)
11. Forbidden to operate above the rated insulation voltage of 690 V
12. Cannot be exposed outdoors or in humid unprotected environments (IP20 rating limited to cabinet interior)
13. Do not connect multiple 4 mm² wires to one single terminal; maximum cross-section for parallel wiring is 2.5 مم²

Full Application Fields of Schneider LADN20 Auxiliary Contact Block

1. الأتمتة الصناعية العامة
2. 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.

2. 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.

3. Robot Supporting Control Cabinets

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

2. Machine Tool Processing Industry (سيناريوهات التطبيق الرئيسية)
3. 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.

2. 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.

3. Stamping & Sheet Metal Machines

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

3. التدفئة والتهوية وتكييف الهواء, Water Supply & Drainage, بناء الأنظمة الكهروميكانيكية
4. معجب & Water Pump Control Boxes

For air conditioning fans, مراوح برج التبريد, circulating pumps and sewage pumps, two NO contacts deliver local indication signals and communication data to building BA systems respectively.

2. Central Air Conditioning Units

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

3. Fire-fighting Supporting Equipment

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

4. Lifting Equipment, اللوجستية & Warehousing Machinery
5. 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.

2. Automated Warehouses & Stackers

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

5. طاقة, التدفئة والتهوية وتكييف الهواء & Environmental Protection Equipment
6. Air Compressor & Vacuum Pump Control Cabinets

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

2. Sewage Treatment Equipment

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

3. PV Auxiliary Equipment

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

6. Rubber & بلاستيك, التعبئة والتغليف & Printing Industry
7. Injection Molding & Extrusion Machines

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

2. التعبئة والتغليف & Printing Machines

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

7. النقل بالسكك الحديدية & EV Charging Pile Supporting Systems
8. Status collection for charging pile cooling fans and main contactors
9. Signal expansion for station ventilation and water pump electromechanical control cabinets
10. 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 (1لا + 1NC) if both running and shutdown fault signals need to be collected simultaneously.