120mm² DC Cable Black - Per Metre
The 120 mm² DC Cable Black is engineered for demanding power delivery tasks. With a substantial 120 mm² cross-sectional area, it is capable of carrying high DC current—making it ideal for battery interconnections, inverter feeds, and main DC bus wiring in large systems. Guardian describes its 120 mm product in their “Extra Flexible PVC Battery and Starter Cable” category, rated for heavy duty applications.
Though large in capacity, this cable maintains a degree of flexibility, allowing for easier installation through conduits, trays, or around bends. The insulation is robust to protect against abrasion, heat, and environmental stressors typical in automotive, marine, or off-grid systems.
Because it is sold per metre, you can purchase exactly what you need, minimising waste and cost. Whether retrofitting a large power system or building a new DC distribution run, this 120 mm² cable provides the reliability and performance required for serious power setups.
Dimensions and Specifications
- Length: Sold per metre
- Conductor cross section: 120 mm²
- Voltage use: DC power, suitable for battery and inverter circuits
- Insulation type: Heavy-duty PVC
- Flexibility: Extra flexible construction
- Current rating: Approximately 700 A
- Colour: Black
Tracked Delivery (Currently 1-3 business days):
- Free over £150.
- £5.99 for orders under £150.
- £5.99 for orders under £50.
Next Business Day Delivery:
- £15 Flat Rate.
Collection:
- Free to collect from our warehouse.
Pre-Order:
- 5-10 Business Days delivery unless otherwise stated.

