NU-EN8N Keyence 8-Input e-CON Unit NU Series I/O

NU-EN8N Keyence e-CON Input Unit – NU Series, 8 Inputs

Key Technical Specifications

• Brand: Keyence
• Model: NU-EN8N
• Series: NU
• Category: e-CON input unit for NU series network communication units
• Inputs: 8 points through e-CON 4-pin connectors
• Input type: NPN open-collector or dry contact
• Response time: 20 µs or less
• Input resistance: 2.4 kOhm
• Minimum ON voltage: 6 V
• Maximum OFF current: 0.9 mA
• Supply current: 520 mA or less across all 8 ports
• Supply voltage: 12 to 24 VDC +/-10%, drawn from the communication unit
• N-bus amplifiers: up to 16 units, total passing current 1,200 mA or less
• Operating temperature: -20 to +55 °C, no freezing
• Humidity: 35 to 85% RH, no condensation
• Weight: approximately 0.055 kg including the tag

Installation Guide

• Mount the input unit beside the connected NU communication unit.
• Take 12 to 24 VDC power from the communication unit within +/-10%.
• Terminate each sensor lead in an e-CON 4-pin connector.
• Keep the total supply current at or below 520 mA for all eight ports.
• Link N-bus amplifiers through the wiring-saving connector when needed.
• Confirm the total passing current stays under 1,200 mA.
• Check that ON voltage reaches 6 V and OFF current stays below 0.9 mA.
• Verify each input in the engineering tool before you start production.

Environmental and Interference Performance

• The NU-EN8N works from -20 to +55 °C without freezing issues.
• Humidity from 35 to 85% RH suits typical indoor control cabinets.
• The 20 µs response catches short pulses from fast sensors.
• NPN open-collector inputs accept both transistor and contact signals.
• e-CON connectors reduce wiring errors and speed up maintenance swaps.

Package List

• 1 × Keyence NU-EN8N e-CON input unit
• 1 × wiring-saving connector for N-bus amplifiers
• 1 × identification tag

Shipping

• We ship by FedEx, UPS, or DHL, based on your location.
• Orders leave our warehouse within 5 days.

FAQ

• Q: Is the NU-EN8N new and original?
  A: Yes, we supply brand new original units, and we hold stock ready to ship.
• Q: How many inputs does this unit offer?
  A: It provides 8 inputs through e-CON 4-pin connectors, all on one unit.
• Q: What is the input response time?
  A: The response time is 20 µs or less, which suits fast sensor signals.
• Q: What input signals does it accept?
  A: It accepts NPN open-collector outputs and dry contact signals.
• Q: Where does the unit get its power?
  A: It draws 12 to 24 VDC +/-10% from the connected communication unit.
• Q: How many N-bus amplifiers can I connect?
  A: You can link up to 16 amplifiers, with total passing current at 1,200 mA or less.
• Q: What is the operating temperature range?
  A: The unit works from -20 to +55 °C with no freezing.
• Q: How fast do you ship, and what carriers do you use?
  A: We dispatch within 5 days by FedEx, UPS, or DHL.
• Q: Can I return the product?
  A: Yes, we accept returns within 30 days.