Abb TNI21 Fusible Neutral Kit 30A 240V Safety Switch

Product Description

The ABB TNI21 is a fusible neutral kit designed for use with safety switches in residential, light commercial, and industrial electrical installations. This kit provides a properly fused neutral connection point, supporting code-compliant wiring configurations where a switched and fused neutral is required. Rated at 30 amps and 240 volts, the TNI21 is an accessory component installed by licensed electricians during safety switch assembly or service. It is engineered to work within ABB safety switch enclosures and supports reliable overcurrent protection on the neutral conductor.

The TNI21 is applicable in settings where local electrical codes or system design require a fused neutral arrangement. Typical installations include residential service entrance equipment, light commercial panelboard applications, and industrial disconnect setups where dual-element fusing on the neutral leg is specified. Electricians working on new construction or service upgrades will commonly encounter this requirement when installing or replacing ABB safety switches rated for 30 amp 240 volt service.

Key Features

• Fusible neutral configuration for code-compliant neutral conductor protection
• Rated at 30 amps and 240 volts for standard residential and light commercial service
• Designed as an accessory kit for compatible ABB safety switch enclosures
• Supports reliable overcurrent protection on the neutral leg
• Suitable for residential, light commercial, and industrial disconnect applications

Compatibility

Designed as an OEM-style accessory neutral kit for use with compatible ABB safety switch enclosures rated at 30 amps and 240 volts.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the circuit at the upstream service disconnect before beginning any work on the safety switch or neutral kit. Verify that the enclosure and fuse elements are rated to match the neutral kit specifications before completing the installation. Do not energize the assembly until all connections are secure and the enclosure is properly closed and rated for the installation environment.

Technical Specifications

• Amperage Rating: 30 amps
• Voltage Rating: 240 volts
• Type: Fusible Neutral Kit
• UPC: 783164129663

Standard Information

• Brand: ABB
• Manufacturer Part Number: TNI21