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ABB P9B01VN 1SFA187001R8010 Contact Block  

1. Key Parameters

• Product Model: P9B01VN (Ordering Part Number: 1SFA187001R8010)
• Product Series: ABB P-Series Auxiliary Contact Blocks (Low-Voltage Switchgear/Contactor Expansion)
• Core Function: Provides 1 normally open (NO) auxiliary contact for control circuit expansion; integrates with compatible ABB switchgear/contactors via modular mounting; ensures reliable signal transmission for interlocks, status monitoring, or PLC communication; supports low-voltage control circuits (AC/DC)
• Electrical & Contact Specifications:

  Parameter	Details	Performance Metrics
  Contact Configuration	- Quantity: 1 Normally Open (NO) contact - Contact Type: Single-break, silver alloy contacts (for low contact resistance) - Rated Current (AC-15): 6A @ 230V AC; 4A @ 400V AC - Rated Current (DC-13): 1A @ 24V DC; 0.5A @ 60V DC - Voltage Rating: Max 400V AC / 60V DC - Contact Resistance: ≤50mΩ (initial)	Silver alloy contacts minimize voltage drop and ensure stable signal transmission; 6A AC rating supports most industrial control circuit loads (e.g., relays, PLC inputs)
  Electrical Isolation	- Isolation Voltage: 2kV AC (contact to housing, 1 minute) - Dielectric Strength: 1.5kV AC (between contacts, if multiple blocks are used)	High isolation prevents signal interference and ground loops in noisy environments (e.g., near VFDs, industrial motors)

• Mechanical & Compatibility Specifications:

  Parameter	Details	Performance Metrics
  Mechanical Design	- Dimensions: 18mm (W) × 75mm (H) × 60mm (D) - Mounting Type: Modular snap-on to ABB switchgear/contactors (e.g., Tmax, A-series) - Housing Material: Flame-retardant thermoplastic (UL 94 V0) - Weight: Approximately 30g - Actuation: Mechanical linkage to parent device (synchronized with main contacts)	Ultra-narrow 18mm width enables dense modular mounting (up to 5 blocks on one switchgear unit); snap-on design ensures tool-free installation in <10 seconds
  Compatibility	- Compatible Devices: ABB Tmax circuit breakers, A-series contactors (A50-A185), AF-series contactors (AF26-AF185) - Mounting Position: Side-mounted (left/right reversible) on parent device	Wide compatibility with ABB’s core low-voltage product lineup; reversible mounting optimizes cabinet space utilization

• Environmental Ratings:

  Parameter	Details	Performance Metrics
  Operating Conditions	- Operating Temperature Range: -25℃~+60℃ (-13℉~140℉) - Storage Temperature Range: -40℃~+85℃ (-40℉~185℉) - Humidity Tolerance: 5%~95% RH (non-condensing, 40℃) - Vibration Resistance: 10~500Hz, 1g acceleration (IEC 60068-2-6) - Shock Resistance: 25g (11ms half-sine, IEC 60068-2-27) - EMC Compliance: EN 61326-3-1 (emission: Class B; immunity: Level 3)	Extreme temperature range suits unconditioned industrial spaces; Level 3 EMC immunity resists interference from power transients and nearby electrical equipment

• Compliance Standards: CE, UL 508, CSA C22.2 No.14, IEC 60947-5-1 (auxiliary contacts), RoHS, ISO 9001 |

2. Core Features

• 1NO Modular Expansion: Adds a single normally open auxiliary contact to compatible ABB devices—ideal for simple control logic needs (e.g., "device on" status feedback to PLCs, trigger signals for alarms) without requiring multi-contact blocks.
• Tool-Free Snap-On Mounting: Mechanically snaps onto ABB switchgear/contactors in seconds—eliminates screws or adapters, ensuring consistent alignment with the parent device’s actuation mechanism and reducing installation time.
• Ultra-Compact Design: 18mm width (narrower than standard auxiliary blocks)—enables dense modular mounting (e.g., multiple P9B01VN blocks on one Tmax circuit breaker) without wasting cabinet or DIN rail space, critical for compact control panels.
• Silver Alloy Contacts: Low-resistance silver alloy contacts minimize voltage drop and prevent contact oxidation—ensures reliable signal transmission even in low-current control circuits (e.g., 4~20mA PLC inputs) over long service life.
• Industrial-Grade Durability: UL 94 V0 thermoplastic housing and -25℃~+60℃ operating range—withstands harsh industrial conditions (e.g., dust, temperature fluctuations) and meets fire safety standards for electrical enclosures.
• Synchronized Switching: Direct mechanical linkage to the parent device’s main contacts—ensures the auxiliary contact switches simultaneously with the main power circuit (no delay), critical for time-sensitive interlocks (e.g., emergency stop circuits, load sequencing).
• Wide Compatibility: Integrates with ABB Tmax circuit breakers and A/AF-series contactors—seamlessly expands existing ABB control systems without proprietary hardware, reducing retrofitting costs.

3. Application Fields

• Industrial Automation: Switchgear & Contactor Logic Expansion:
  • Circuit Breaker Status Monitoring: Mounts on ABB Tmax circuit breakers in power distribution panels—1NO contact sends "breaker closed" signals to a SCADA system, enabling remote monitoring of power availability.
  • Contactor Interlocks: Adds to ABB A50 contactors controlling pump motors—NO contact interlocks with a PLC to confirm the contactor is energized before starting a downstream process (e.g., opening a valve), preventing dry running.
• Building HVAC & Utilities: System Coordination:
  • Chiller Control Panels: Expands ABB AF26 contactors for chiller compressors—NO contact triggers a "compressor active" signal to the BMS, which adjusts fan speed to match cooling demand, optimizing energy use.
  • Elevator Power Distribution: Mounts on Tmax circuit breakers powering elevator drives—NO contact alerts facility managers if the breaker is tripped, enabling rapid troubleshooting to minimize downtime.
• Process Control: Sequential Operation:
  • Chemical Batch Processing: Adds to ABB contactors controlling reagent pumps—NO contact signals a PLC that the pump is running, triggering the next step in the batch sequence (e.g., mixing), ensuring process accuracy.
  • Water Treatment Skids: Expands contactors for filtration system motors—NO contact confirms the motor is on, allowing a PLC to open inlet valves; prevents valve damage from opening without motor operation.
• Commercial & Institutional Facilities: Safety & Monitoring:
  • Data Center UPS Systems: Mounts on Tmax circuit breakers for UPS bypass circuits—NO contact verifies the bypass is active, disabling the main inverter to prevent backfeeding, protecting UPS components.
  • Hospital Electrical Panels: Adds to contactors controlling critical equipment (e.g., MRI machines)—NO contact sends "equipment powered" alerts to facility management, ensuring uninterrupted patient care.

4. Precautions

• Compatibility Verification (Critical): Confirm the parent device (switchgear/contactor) is on the compatible list (Tmax, A-series, AF-series)—using the P9B01VN with non-ABB or incompatible ABB devices causes misalignment, contact damage, or failure to switch; refer to ABB’s product compatibility guide for confirmation.
• Installation & Wiring Safety:
  • Secure Mounting: Ensure the block snaps fully into the parent device’s mounting slot (audible "click")—partial installation leads to desynchronized switching (auxiliary contact lags main contacts), risking interlock failures.
  • Contact Wiring: Use 0.5mm²~1.5mm² copper conductors for control circuits—torque terminal screws to 0.4Nm (M2.5) to prevent loose connections; avoid over-tightening, which strips terminals or damages contact blocks.
  • Voltage/Curent Limits: Do not exceed 400V AC / 60V DC or 6A AC / 1A DC—overloading causes contact arcing, insulation breakdown, or melting; use a multimeter to confirm control circuit parameters before wiring.
• Operation & Maintenance:
  1. Contact Health Check: Inspect contacts annually for pitting, oxidation, or discoloration—visible damage indicates high resistance or arcing; replace the block if contact resistance exceeds 100mΩ (measured with a micro-ohmmeter).
  2. Mechanical Linkage Inspection: Verify the block’s actuation lever moves freely with the parent device—sticking or binding (common in dusty environments) causes delayed switching; clean the lever with compressed air (low pressure) to remove debris.
  3. Environmental Protection: Install in a clean, dry control cabinet (IP20 or higher)—dust and moisture cause contact corrosion and insulation degradation; use IP54 enclosures for outdoor or wet environments (e.g., water treatment plants
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The structure and details of the product：

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