SKB3400055施耐德電氣 TeSys 系列輔助觸點模塊

SKB3400055施耐德電氣 TeSys 系列輔助觸點模塊 

SKB3400055施耐德電氣 TeSys 系列輔助觸點模塊 

SKB3400055施耐德電氣 TeSys 系列輔助觸點模塊 

SKB3400055施耐德電氣 TeSys 系列輔助觸點模塊 

以下是針對 ?施耐德電氣 TeSys 系列輔助觸點模塊 (SKB3400055)? 的深度技術解析，涵蓋規格參數、機械設計、安裝指南及兼容性方案：

一、核心參數速查表

?? ?物理特性?：

• 寬度：17.5mm
• 材質：PA66-GF25 (阻燃等級 UL94 V0)
• 接線端子：推入式彈簧夾持 (0.2-2.5mm2)

二、機械結構與安裝圖解

?三維爆炸視圖?

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		[前蓋] 
  ├─ [觸點滑塊] → 隨接觸器動作同步移動
  ├─ [鍍銀觸點] → AgSnO? 材質 (抗電弧)
  └─ [彈簧機構] → 確保快速分斷
[底座]
  ├─ [卡扣鎖] → 藍色滑動鎖扣
  └─ [導向槽] → 對齊接觸器推桿
	

?安裝步驟?

1. ?準備接觸器?：確保LC1D接觸器處于斷電狀態
2. ?對齊卡槽?：將SKB模塊導向槽對準接觸器左側推桿
3. ?按壓鎖定?：用力按壓模塊直至聽到"咔嗒"聲
4. ?驗證鎖定?：手動推動藍色鎖扣確認無松動

?? ?關鍵注意?：

• 每個接觸器最多可疊加安裝 ?4個? SKB模塊
• 安裝方向必須為 ?觸點豎直向下? (防止積塵)

三、電氣接線規范

?端子定義?

?典型應用電路?

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		graph LR
A[接觸器線圈] -->|得電| B[主觸點閉合]
B --> C[電機運行]
SKB[SKB3400055] -->|13-14閉合| D[運行指示燈]
SKB -->|21-22斷開| E[停止指示燈]
	

四、兼容性指南

?適用接觸器型號?

?? ?擴展建議?：

• 需要更多觸點時可組合 ?LX5E-D? 擴展基座
• 信號遠傳需配合 ?LADN22? 信號放大器

五、故障診斷與維護

六、替代方案

?施耐德升級型號?

?國產兼容方案?

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		推薦型號：正泰NCH8-22  
適配步驟：
1. 功能對應： 
   - SKB的13/14 → NCH8的13/14 (NO)
   - SKB的21/22 → NCH8的21/22 (NC)
2. 安裝改造：
   - 使用3M VHB膠帶粘貼（緊急方案）
   - 定制3D打印安裝支架（長期方案）
	

七、生命周期管理

The following is a deep technical analysis of Schneider Electric's TeSys series auxiliary contact module (SKB3400055), covering specifications, mechanical design, installation guidelines, and compatibility solutions:
1、 Quick Reference Table for Core Parameters
Attribute specifications
Model SKB3400055
Product line TeSys D series contactor accessories
Contact type 1NO (normally open)+1NC (normally closed)
Rated current 6A (AC-15, 230V)/3A (DC-13, 24V)
Electrical lifespan: 1000000 operations
Mechanical lifespan: 30000000 operations
Installation method: Side mounted (buckle on the left side of the contactor)
Protection level IP20 (IP54 with contactor after installation)
Applicable contactors LC1D09~LC1D38 (09A-38A)
??  Physical characteristics:
Width: 17.5mm
Material: PA66-GF25 (flame retardant grade UL94 V0)
Wiring terminal: Push in spring clamp (0.2-2.5mm 2)
2、 Mechanical Structure and Installation Diagram
3D explosion view
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[Front cover]
∝ - [Contact slider] → Move synchronously with the action of the contactor
∝ - [Silver plated contact] → AgSnO ? material (arc resistant)
└ - [Spring mechanism] → Ensure quick disconnection
[Base]
∝ - [Snap Lock] → Blue Sliding Lock Lock
└ - [Guide Slot] → Align the contactor push rod
Installation steps
Prepare the contactor: Ensure that the LC1D contactor is in a power-off state
Align card slot: Align the SKB module guide slot with the left push rod of the contactor
Press lock: Press the module firmly until you hear a "click" sound
Verification locking: manually push the blue lock buckle to confirm that there is no looseness
??  Key Attention:
Each contactor can stack up to 4 SKB modules for installation
The installation direction must be vertically downward from the contact point (to prevent dust accumulation)
3、 Electrical wiring specifications
Terminal definition
Recommended wire diameter for terminal number function identification
13-14 normally open contact NO 1.5mm 2
21-22 normally closed contact NC 1.5mm 2
Typical Application Circuit
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graph LR
A [contactor coil] -->| energized | B [main contact closed]
B -->C [Motor operation]
SKB [SHB3400055] -->| 13-14 closed | D [running indicator light]
SKB -->| 21-22 disconnected | E [stop indicator light]
4、 Compatibility Guide
Applicable contactor models
Contactor model, rated current, maximum number of stacked modules
LC1D09 9A 4
LC1D12 12A 4
LC1D18 18A 3
LC1D25 25A 2
LC1D32 32A 2
LC1D38 38A 1
??  Extension suggestion:
When more contacts are needed, the LX5E-D expansion base can be combined
Remote signal transmission requires cooperation with LADN22 signal amplifier
5、 Fault diagnosis and maintenance
Root cause solution for fault phenomenon
The contact does not move and the buckle is not fully locked. Reinstall and hear a "click" sound
The indicator light is flashing, and the contact resistance is too high. Clean the contact with anhydrous ethanol
Module automatic detachment contactor push rod wear replacement LC1D contactor push rod component
Contact adhesion surge current exceeding 6A increases RC absorption circuit
6、 Alternative solutions
Schneider upgraded model
Improvement points for prototype and new models
SKB3400055 LADN22CB integrated LED status indicator
Domestic compatibility solution
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Recommended model: Chint NCH8-22
Adaptation steps:
1. Functional correspondence:
-SKB's 13/14 → NCH8's 13/14 (NO)
-SKB's 21/22 → NCH8's 21/22 (NC)
2. Installation and renovation:
-Use 3M VHB tape for pasting (emergency solution)
-Customized 3D printing installation bracket (long-term solution)
7、 Lifecycle Management
Parameter threshold detection method
Contact wear thickness ＜ 0.3mm. Use a micrometer to measure the height of the contact protrusion
Spring fatigue pressure ＜ 0.8N, pressure sensor testing rebound force
Insulation aging, insulation resistance ＜ 100M Ω, 500V megohmmeter testing between terminals
Suggest a replacement cycle of 5 years/500000 operations, whichever comes first