Tesla JBL Large TPS Junction Box 100×70×50mm

Description

Tesla JBL. Large TPS Junction Box. White. 95x65x48mm. Connectors Included.

The Tesla JBL is a large white TPS junction box for the safe, enclosed joining and termination of double insulated (TPS) electrical cables. Three single connectors and one double connector are included. The junction box provides physical protection for the cable connections and encloses the join in a white polycarbonate housing. Dimensions: 95mm W × 65mm L × 48mm D. Sold individually.

• Tesla — JBL Large TPS Junction Box
• White polycarbonate housing
• For connection of double insulated (TPS) electrical cables
• Includes: 3 x single connectors and 1 x double connector
• Dimensions: 95mm W x 65mm L x 48mm D
• Suitable for residential and commercial electrical installations
• Companion small version available — JBS (70mm x 70mm x 37mm)
• Sold individually

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Where the Tesla JBL Junction Box is Used

Junction boxes are used in electrical wiring installations wherever TPS (Twin and Earth) cables need to be joined, branched, or terminated in a location that is not at a switch, power point, or light fitting. Common applications include joining cable runs where the cable length is insufficient and an extension is required, branching a circuit to supply multiple points from one cable entry, terminating a cable run that feeds a switched or unswitched circuit, and housing cable connections in locations such as ceiling spaces, wall cavities, and external walls where the connection needs to be enclosed and protected from physical damage.

The Tesla JBL is the large junction box — at 95mm × 65mm × 48mm it provides more internal space than the JBS small box (70mm × 70mm × 37mm), making it the better choice where larger cable sizes, more conductors, or more connectors are needed in the one box. Both sizes include three single connectors and one double connector, covering the standard range of conductor connection requirements for single-phase TPS circuit joins.

The white polycarbonate housing is impact-resistant and suitable for use in concealed and semi-concealed locations typical of residential and commercial electrical installations. The included connectors allow quick, reliable connections without the need for separate crimping tools or tape — the conductors are inserted into the connector and the screws tightened to secure and terminate each connection.

Q: What connectors are included with the Tesla JBL junction box?
A: Three single connectors and one double connector are included. The single connectors suit joining two conductors (one in each side). The double connector suits joining three conductors — for example, where an active conductor is being looped from one cable through to a second cable at the junction point.

Q: What is the difference between the JBL (large) and JBS (small) junction boxes?
A: The JBL large box is 95mm W × 65mm L × 48mm D, providing more internal volume for larger cable sizes or more connections. The JBS small box is 70mm W × 70mm L × 37mm D — more compact for tight spaces or lighter cable work. Both include the same 3 single + 1 double connector complement.

Q: Is the Tesla JBL suitable for outdoor use?
A: The Tesla JBL is a standard TPS junction box designed for indoor use and protected locations such as ceiling spaces and wall cavities. For outdoor or weatherproof applications, an IP-rated enclosure is the correct product — the JBL is not rated for direct exposure to weather.

Warranty

This product is backed by an extended manufacturer warranty - click here for details.