Thomas Betts RBB25 Parallel Splice Connector 18-16 Awg

Product Description

The THOMAS BETTS RBB25 is a nylon-insulated parallel splice connector rated for 600 volts and designed for use with 18 to 16 AWG copper conductors. The connector is constructed from electro tin plated copper and features a blue nylon insulating sleeve. In a parallel splice configuration, wires are laid side by side within the barrel and a single crimp completes the connection. This design reduces installation time and keeps the overall assembly compact. The barrel outer diameter measures 0.23 inches and the connector length is 0.84 inches. It carries UL and CSA approvals and is RoHS compliant. Licensed electricians and electrical contractors install this connector in control panel wiring, low-voltage circuits, and branch circuit splicing applications.

The RBB25 is suited for residential, commercial, and light industrial electrical work where a reliable, space-saving inline splice is required. Its parallel geometry makes it practical in tight enclosures or junction boxes where an in-line butt splice would be difficult to orient. The single-crimp installation method is compatible with standard insulated-terminal crimping tools, making it a fast choice for high-volume wiring tasks. This connector is sold in a standard package of 1000 pieces, which suits production wiring environments and service contractors who work through large quantities regularly.

Key Features

• Parallel splice design places wires side by side for a single-crimp termination
• Rated 600 volts for use in low-voltage and branch circuit applications
• Electro tin plated copper barrel provides reliable conductivity and corrosion resistance
• Nylon insulation rated to 105 degrees C for use in elevated-temperature environments
• UL and CSA approved, RoHS compliant
• Blue color coding identifies 18 to 16 AWG conductor range

Compatibility

Designed for use with 18 to 16 AWG copper conductors in standard insulated parallel splice applications. Compatible with standard insulated-terminal crimping tools used for nylon-insulated connectors.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the circuit before beginning any splice work. Use a calibrated crimping tool rated for insulated nylon parallel connectors to ensure a secure, gas-tight crimp. Do not attempt to solder over the crimp or use the connector with aluminum conductors unless explicitly rated for that application.

Technical Specifications

• Type: Parallel Splice
• Voltage Rating: 600 volts
• Conductor Size: 18 to 16 AWG
• Barrel Outer Diameter: 0.23 inches
• Length: 0.84 inches
• Material: Electro Tin Plated Copper
• Insulation Type: Nylon
• Color: Blue
• Temperature Rating: 105 degrees C
• Approvals: UL, CSA
• RoHS Compliant: Yes
• Standard Package Quantity: 1000
• Country of Origin: US

Standard Information

• Brand: THOMAS BETTS
• Manufacturer Part Number: RBB25