Schneider Electric 990NAD21930 Modbus Plus Drop Cable Modicon

Product Overview

The Schneider Electric 990NAD21930 drop cable supports Modbus Plus communication for Modicon systems. It delivers stable module-to-junction box connectivity across automation networks. Oiltech Controls recommends this cable for Momentum hardware, Altivar 61, and Altivar 71 installations.

• Schneider Electric ensures consistent electrical performance for industrial communication.
• 990NAD21930 offers 6 meters of routing flexibility inside system cabinets.
• SUB-D 9 connector links directly to the communication module without adapters.
• Flying leads connect cleanly inside the junction box during installation.
• Inquiries: info@oiltechcontrols.com / +86 158 8020 0923

Technical Specifications

• Brand: Schneider Electric
• Model: 990NAD21930
• Category: Modicon Modbus Plus drop communication cable
• Cable Length: 6 m / 19.7 ft
• Connection: SUB-D 9 communication module side + flying leads junction box side
• Ambient Temperature Range: 0 to 40°C
• Humidity Range: 80% non-condensing storage and operation
• Altitude Rating: 1000 m without derating
• Net Weight: 0.46 kg
• Compatibility: Modicon Momentum platform, Altivar 61, Altivar 71

Installation Guidance

• Route the 6 m cable through shielded panel paths and avoid sharp bends.
• Seat the SUB-D 9 connector firmly into the communication interface port.
• Apply proper strain relief near the connector and junction entry point.
• Terminate flying leads according to signal designation inside the junction box.
• Oiltech Controls recommends inspection before system energizing.

Environmental & Performance Strengths

• The structure resists interference in modular drive cabinets.
• The cable withstands industrial temperature and humidity ratings.
• The altitude tolerance maintains communication quality up to 1000 m.
• The routing length supports flexible layout in automation lines.
• Stable Modbus Plus signaling enhances system reliability.

Packing List

• 1 x Schneider Electric 990NAD21930 Drop Cable (6 m)
• Protective industrial packaging
• Shipping Options: FedEx, UPS, DHL

FAQ

• Does this cable support Modicon Momentum racks?
• It connects directly with Momentum communication modules.
• Can I use it with Altivar drives?
• It supports Altivar 61 and 71 when Modbus Plus communication exists.
• What connector does the module side use?
• It uses a SUB-D 9 connector for stable signal transfer.
• Does the cable require derating at altitude?
• It maintains normal performance up to 1000 meters.

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