Allen‑Bradley 800T‑XD2P Sealed Contact Block

Overview

Core Model & Parameter Specifications

Contact Definition

• Contact configuration: 1 Normally Closed (1NC) sealed contact
• Utilization category: A600 / AC‑15, Q600 / DC‑13
• Max rated voltage: 600V AC/DC
• Thermal continuous current: 10A; breaking current: 5A
  • AC: 5A @ 120V, 3A @ 240V
  • DC: 3A @ 24V control signal circuit
• Terminal type: Screw clamp terminals
  • Applicable wire: 14–18 AWG solid/stranded copper wire
  • Tightening torque: 6–8 lb‑in (0.7–0.9 N·m)

Sealing & Environmental Performance

• Internal fully sealed contact chamber, NEMA Type 4 / 4X / 13 watertight & oiltight
• Front panel matching IP65 protection, terminal area IP20
• Operating temperature: -25℃ ~ +60℃; storage -40℃ ~ +85℃
• Mechanical service life: ≥10 million actuation cycles
• Shock resistance: 100G; vibration withstand: 10G

Mechanical Mounting

• Matching operator size: 30.5mm cutout 800T / 800H pushbuttons (e.g. 800H‑QR10A illuminated button)
• Installation method: Side stackable modular snap-on mounting, no tools required for assembly/disassembly
• Multiple blocks can be stacked on one single button operator to form multi-circuit control

Key Functions

1. Sealed contact anti-pollution switching
    
   Totally enclosed contact cavity prevents dust, oil mist, cooling water from causing contact oxidation or short-circuit, stable signal output in chemical, food, mining harsh workshops.
2. Safety circuit NC signal transmission
    
   NC contact is widely used for emergency stop, safety door interlock, rope pull switch feedback signals, paired with 440R‑N23126 safety relay to build dual redundant safety monitoring loops.
3. PLC digital input signal collection
    
   Convey equipment stop, fault, safety trigger status to SLC 500 / MicroLogix 1200 PLC DI modules, upload alarm data to HMI touch panel.
4. Modular multi-circuit expansion
    
   Stack multiple XD2P NC blocks or XD1P NO blocks on one pushbutton to realize independent control loops without extra panel space.
5. Quick maintenance replacement
    
   Snap-on design allows fast disassembly without removing the entire pushbutton from cabinet door, shortens equipment downtime during contact aging replacement.

Compatible Matching Equipment

1. Pushbutton Operators
    
   800T series heavy-duty buttons, 800H washdown buttons (800H‑QR10A amber illuminated pushbutton)
2. Safety Components
    
   440R‑N23126 dual-channel safety relay, 440E‑A13501 rope pull switch contact block
3. PLC & Terminals

• SLC 500: 1747‑L532 CPU + 1746 digital input modules
• MicroLogix 1200: 1762‑L40BWA + 1762‑RPLRTB40 replacement terminal block

4. Distribution & Network
    
   140M‑I8P‑C50S motor protection circuit breaker, 1783‑MMX14T2S Stratix managed Ethernet switch
5. HMI System
    
   Allen‑Bradley PanelView, GE IC755CSW07CDA industrial touch screen

Typical Industrial Applications

• Packaging machine emergency stop & safety door interlock circuits
• Food & beverage washdown production line control panels
• Conveyor belt rope pull safety signal feedback
• Water treatment pump station local stop button signal collection
• Metal processing, mining machinery heavy-duty control stations