Earthing & Bonding

Earthing and bonding components are essential electrical accessories that ensure safe, compliant installations across residential, commercial, and industrial projects throughout Australia. iSupply Electrical stocks a comprehensive range of C connectors, compression clamps, and copper earthing accessories designed for licensed electricians and electrical contractors who demand reliability and compliance with AS/NZS 3000:2018 Wiring Rules.​

Our earthing and bonding products are specifically engineered for tap and parallel connections of stranded copper cables in grounding applications, providing low-impedance earthing systems that protect both personnel and equipment. C-type connectors feature heavy-wall extruded high conductivity copper construction, offering excellent corrosion resistance and secure connections for earth grid installations without cutting the main cable.​

Licensed electricians working on new construction, renovations, and maintenance projects rely on quality earthing accessories to meet mandatory equipotential bonding requirements for bathrooms, swimming pools, and steel-framed buildings. Whether you’re connecting concrete reinforcement, installing slab bonding, or establishing comprehensive earthing systems, our range accommodates copper conductors from 7.5mm² to 895mm².​

At iSupply Electrical, we understand that project deadlines and compliance standards drive your purchasing decisions. Our earthing and bonding category includes products from trusted brands like Cabac, ensuring mechanical strength, superior conductivity, and long-term durability for demanding electrical installations. All products are available at competitive wholesale prices with fast delivery across Australia, supporting electricians who need immediate access to compliant components.​

Browse our full selection of electrical accessories for additional installation products, or contact our team for assistance with custom earthing solutions for commercial and industrial projects.


FAQs

What are C connectors used for in electrical earthing?

C connectors (also called C clamps or C-type compression connectors) are specifically designed for tapping into and joining stranded copper conductors in earthing applications without cutting the main cable. These copper connectors enable tap and parallel connections for establishing low-impedance earthing systems, connecting earth grids, and bonding applications required under AS/NZS 3000:2018.​

Do earthing and bonding products need to comply with Australian standards?

Yes, all earthing and bonding installations in Australia must comply with AS/NZS 3000:2018 Electrical Installations (Wiring Rules), which sets out specific requirements for earthing conductor sizing, equipotential bonding, and connections to building reinforcement. Licensed electricians must ensure earthing products meet these standards for safety, equipment protection, and legal compliance.​

What size earthing conductor do I need for bonding applications?

Earthing conductor size depends on your specific application and the size of electricity supply cables. For equipotential bonding to concrete slab reinforcement in bathrooms and showers, AS/NZS 3000:2018 Clause 5.6.3.2(b) requires a minimum 4mm cable. For main earthing connections and building framework bonding, conductor sizing is determined by the installation’s electrical supply capacity.​

Can I use C connectors for both residential and commercial projects?

Yes, C connectors and compression clamps are suitable for residential, commercial, and industrial earthing applications. These versatile connectors accommodate various conductor sizes (from 7.5mm² to 895mm² depending on the model) and are designed for buried earth grids, overhead connections, and general grounding systems across all project scales.​

How quickly can I get earthing products delivered in Australia?

iSupply Electrical offers same-day pickup from our Fairfield East, NSW location for urgent project needs, plus fast Australia-wide delivery within 1-6 days depending on your location. Licensed electricians can order online or contact us directly for bulk pricing on earthing and bonding accessories to keep projects on schedule without delays.​

Showing 17–32 of 43 results

  • HV Discharge Device 2m

    HV Discharge Device 465mm

    $1,191.61 inc GST

    The HV Discharge Device 465mm provides a practical insulated discharge solution for professional electrical testing and maintenance. It features a 465mm glass-fibre reinforced polyester stick, 3.5m copper earth cable with a 16mm² cross-section, and a welding-style earth clamp with an 18mm maximum clamp range.

  • DEHN OH Earth 120/50 mm2 Cable D-712604-S

    DEHN OH Earth 120/50 mm2 Cable D-712604-S

    $4,522.55 inc GST

    The DEHN OH Earth 120/50 mm² Cable D-712604-S is a German-engineered copper trifurcating earthing cable set for professional electrical applications. It includes 2 m A/B/C tails and a 7 m earth tail, with advanced rubber moulding and insulation for a robust, practical installation solution.

  • OH Earth 70/35 mm2 Cable

    DEHN OH Earth 70/35 mm2 Cable D-770604

    $3,805.99 inc GST

    The DEHN OH Earth 70/35 mm² Cable D-770604 is a German-engineered trifurcating earthing cable set made from high-quality copper. It features 2 m A/B/C tails, a 7 m earth tail, and advanced rubber moulding and insulation. A practical choice for qualified electrical professionals requiring a purpose-built earthing cable assembly.

  • DEHN OH Earth 120/50 mm2 Cable D-712604-S

    DEHN OH Earth 95/35 mm2 Cable D-795604-S

    $4,215.30 inc GST

    The DEHN OH Earth 95/35 mm² Cable D-795604-S combines German engineering, copper construction and advanced rubber moulding in a practical trifurcating cable set. It is a suitable choice for professional trades requiring a ready-configured earthing assembly for electrical installation work.

  • OH Earth Set 70/35 mm2

    DEHN OH Earth Set 70/35 mm2 D-770604-S-SET

    $5,676.89 inc GST

    DEHN’s engineering heritage makes this set suitable for electrical professionals who require purpose-designed earthing equipment for demanding overhead applications. Always confirm compatibility with the specific installation, conductors and applicable electrical requirements before use.

  • DEHN OH Earth Set 95/35 mm2 D-795604-S-SET

    DEHN OH Earth Set 95/35 mm2 D-795604-S-SET

    $8,730.23 inc GST

    German-engineered DEHN OH Earth Set with copper trifurcating earthing cable, 7m earth tail, 2m A/B/C tails and universal clamps for professional overhead earthing applications.

  • DEHN OH Earth 120/50 mm2 Cable D-712604-S

    SB Earth 120/50 mm2 Cable

    $4,520.58 inc GST

    For trade professionals sourcing dependable earthing components, the SB Earth 120/50 mm² Cable provides a purpose-built assembly combining quality copper construction, practical tail lengths and advanced insulation in one ready-to-install configuration.

  • DEHN OH Earth 120/50 mm2 Cable D-712604-S

    SB Earth 70/35 mm2 Cable

    $1,521.89 inc GST

    German-engineered and made for professional electrical work, the SB Earth 70/35 mm² Cable is a pre-configured copper trifurcating earthing cable set. It features three 600 mm A/B/C tails, an 1800 mm earth tail, and advanced rubber moulding and insulation.

  • OH Earth Set 70/35 mm2

    SB Earth Set 70/35 mm2

    $5,550.83 inc GST

    SB Earth Set 70/35 mm² is a specialised, German-engineered copper trifurcating earthing cable set for professional electrical installations. It includes three 600 mm tails, a 1,800 mm earth tail, and four universal clamps suitable for rods up to 30 mm diameter. Earthing rod not included.

  • Single Pole Earth Set 70mm x 5m

    Single Pole Earth Set 70mm x 5m

    $2,015.25 inc GST

    DEHN Single Pole Earth Set 70mm x 5m is a portable, professional-grade earthing device with a 70mm² conductor, 5m jumper and 13.8kA/1-second rating. Manufactured in Germany with universal bayonet-attached clamps and IEC certification, it suits demanding electrical maintenance and temporary earthing applications.

  • Telescopic Earth Rod 5m

    Telescopic Earth Rod 5m

    $2,901.76 inc GST

    The Telescopic Earth Rod 5m offers a durable, portable solution for electrical professionals requiring extended reach for suitable earthing applications. With a 5.5m fully extended length, fibreglass construction, metal head and T-pin attachment, it is designed for practical use across demanding trade and maintenance environments.

  • Cabac C CON.70-95MM2 RUN/TAP CACC95

    Cabac C CON.70-95MM2 RUN/TAP CACC95

    $46.10 inc GST

    The Cabac CACC95 provides a high-purity copper connection solution for joining and tapping 70–95mm² conductors. Suitable for earthing, bonding and earth-grid applications, it offers high conductivity, robust mechanical properties and heat-cycle testing for professional electrical installations.

  • Cabac C CONNECTOR 110-125MM2 CACC120

    Cabac C CONNECTOR 110-125MM2 CACC120

    $55.32 inc GST

    The Cabac CACC120 provides a high-purity copper connection solution for joining, tapping, earthing and bonding applications involving 110–125mm² conductors. Tested for heat cycling and designed for compatibility with interchangeable CABAC and Burndy tooling, it suits professional electrical trade applications.

  • Cabac C CONNECTOR 16-25MM2 CACC25

    Cabac C CONNECTOR 16-25MM2 CACC25

    $28.78 inc GST

    The Cabac CACC25 C Connector provides a high-conductivity copper solution for joining, tapping, earthing and bonding copper conductors. Designed for 16–25mm² conductors and heat-cycle tested, it suits professional electrical installations requiring dependable conductive connections. Its compatibility with interchangeable CABAC and Burndy tooling adds practical versatility.

  • Cabac C CONNECTOR 35MM - 40MM 2 CACC35

    Cabac C CONNECTOR 35MM – 40MM 2 CACC35

    $33.13 inc GST

    The Cabac CACC35 is a high-purity copper C-Connector for joining and tapping 35–40mm copper conductors. Designed for earthing and bonding applications, it offers high conductivity, heat-cycle testing, and tooling compatibility for professional electrical installations.

  • Cabac C CONNECTOR MULTIFIT 120/240MM CACE120/240

    Cabac C CONNECTOR MULTIFIT 120/240MM CACE120/240

    $71.74 inc GST

    The Cabac C Connector Multifit 120/240mm provides a heavy-duty copper connection solution for joining and tapping copper conductors of varying sizes. Made from 99.9% pure copper, it is corrosion resistant and suitable for direct burial and earthing networks, making it practical for professional electrical installations.

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