Product details
990NAD23000 | Schneider Electric Modicon Modbus Plus Junction Box
The 990NAD23000 is a junction box from Schneider Electric. It belongs to the Modicon family. Moreover, it keeps Modbus Plus networks running with stable links. It runs on 24 V DC. In addition, it uses passive cooling, so no fan is needed. As a result, it lasts long in busy panels. It carries an IP20 rating. Therefore, it suits clean cabinets and control rooms.
Technical Data
- Brand: Schneider Electric
- Model: 990NAD23000
- Series: Modicon
- Product Type: Junction Box
- EAN / GTIN: 3595861127814
- Network Protocol: Modbus Plus
- Communication Port Protocol: Modbus Plus
- Input Voltage Range: 24 V DC
- Cooling: Passive, no active cooling
- Mounting: Wall or panel mount
- Protection Class: IP20
- Connector Type: Screw terminals
- Application: Modbus Plus network communication
- Net Weight: 0.23 kg (0.51 lb)
- Country of Origin: CN
Core Performance Details
- Measurement Range: Not applicable for this junction box
- Frequency Response: Not applicable for this junction box
- Sensitivity: Not applicable for this junction box
- Linearity: Not applicable for this junction box
- Resolution: Not applicable for this junction box
- Temperature Range: -20°C to +60°C operating
- Environmental Tolerance: IP20 rated for dust and solid objects
- Anti-interference Ability: Built for Modbus Plus line stability
Accessory Details
- Category: Connection accessories
- Type: Junction box
- Designation: IP20 Modbus Plus junction box with line terminal
- Destination: Modbus Plus network
- Wiring Tools: Requires 043509383
- Quantity per Set: Set of 1
Physical and Packing Data
- Net Weight: 0.23 kg (0.51 lb)
- Package Height: 2.600 cm (1.024 in)
- Package Width: 5.500 cm (2.165 in)
- Package Length: 11.400 cm (4.488 in)
- Package Weight: 63.000 g (2.222 oz)
- Units per Package: 1
Installation Guide
- Mount the box on a wall or panel.
- Use 24 V DC for the supply.
- Wire the line with screw terminals.
- Keep the unit inside an IP20 cabinet.
- Use wiring tool 043509383 for setup.
- Avoid wet spots and heavy vibration.
Commissioning and Maintenance
- Check each screw terminal before power on.
- Confirm the Modbus Plus line is clean.
- Watch for loose wires after machine moves.
- Clean the box with a dry cloth.
- Keep spare screws and labels on hand.
- Replace the unit if links drop often.
Compatibility Notes
- Works with the Modicon Momentum platform.
- Works with the Modicon TSX Micro platform.
- Works with the Modicon Premium platform.
- Works with the Modicon Quantum platform.
- Uses the Modbus Plus protocol.
- Confirm your network type before you order.
Certifications and Compliance
- IP20 protection class.
- Certification details are not listed in the source data.
- Follow local rules for 24 V DC wiring.
- Keep proof of purchase for claims.
Packing List
- 1 × 990NAD23000 Junction Box
- 1 × Protective packing
- 1 × Order confirmation
- 1 × Warranty document
Warranty and Shipping
- Warranty: 12 months
- Dispatch: 12–24 hours after payment
- Couriers: FedEx, UPS, DHL
- Tracking: Shared once the parcel ships
- Support: Technical help on request
Expert Review
The 990NAD23000 does one job well: it joins Modbus Plus lines with clean contacts. The 24 V DC input is common in control panels. Passive cooling means fewer parts to fail. The IP20 rating keeps dust out in normal rooms. The -20°C to +60°C range covers most sites. Screw terminals make wiring simple. However, it is not a smart device. Still, it is a strong pick for network upkeep.
Manager’s Insight
Keep one 990NAD23000 in your spares bin. A dead line stops the whole cell. The 12-month warranty and 12–24 hour dispatch cut risk. Use FedEx, UPS, or DHL for fast delivery. Check your Modicon platform first. Confirm the Modbus Plus layout and 24 V DC supply. Train staff on screw terminal torque. As a result, this cuts downtime a lot.
Best Fit Devices and Applications
- Modicon Momentum control racks
- Modicon TSX Micro systems
- Modicon Premium systems
- Modicon Quantum systems
- Legacy factory automation lines
- Process control rooms
- Water and pump stations
- Panel builders and system integrators
FAQ
Q: What does this junction box do?
A: It joins Modbus Plus lines. It keeps data flow clean and stable.
Q: What power does it need?
A: It needs 24 V DC. No active cooling is required.
Q: How do I mount it?
A: You can mount it on a wall or a panel. Screw terminals hold the wires.
Q: Which tools do I need?
A: You need wiring tool 043509383. A small screwdriver also helps.
Q: What is the protection class?
A: It is IP20. Keep it in a dry, clean cabinet.
Q: What is the warranty?
A: We give 12 months. Keep your invoice for claims.
Q: How fast do you ship?
A: We dispatch in 12–24 hours. We use FedEx, UPS, and DHL.
Q: Can I use it outdoors?
A: No. The IP20 rating suits indoor panels only.
Q: What should I check before buying?
A: Confirm the Modbus Plus network, the 24 V DC supply, and your Modicon platform. Ask us if unsure.
Buying Guide
- Confirm your network uses Modbus Plus.
- Check your supply gives 24 V DC.
- Plan for the -20°C to +60°C range.
- Keep the box inside an IP20 cabinet.
- Buy wiring tool 043509383 if you lack one.
- Keep a spare for critical lines.
- Share your platform model for a fit check.
Contact Us
- Email: sales@powergearx.com
- WhatsApp: +86 18030005825
- Inquiries are welcome for stock, price, and shipping.
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