Due to the NZ wide Covid 19 lockdown we are currently operating under strict social distancing policies. Please expect delays in processing and shipping. Thank you for your patience at this difficult time. Wishing you all the best of health. Due to the NZ wide Covid 19 lockdown we are currently operating under strict social distancing policies. Please expect delays in processing and shipping. Thank you for your patience at this difficult time. Wishing you all the best of health.

Single Pole DC Breakers

$ 29.00 NZD

We stock a limited range of single pole, non-polarized, din rail DC breakers.

Please also look at our 2-pole breaker range  and our MC4 fuse options. We also offer a limited range of prewired combiner boxes and PVC din rail enclosures and a 32 amp 2-pole DC switch with MC4 connectors.

We also offer a large 125A DC 2-pole breaker that can be used for battery main/inverter/large 100 A MPPT applications. These applications can also be met with much lower cost 125-160A 3-pole HRC fuse holders. In general DC HRC fuses should not be cycled under load (other than in an emergency) as contacts can be damaged by DC arcs. 

These 1-pole breakers are not to be used for applications above 250VDC and are ideally suited for off-grid ELV applications (<120VDC) and for use with common 150V, 200V and 250V MPPT charge controllers connected to ELV PV arrays and 12/24/48V battery banks.  These breakers are not suitable for connecting grid-tied inverters to LV PV arrays.

 

Breakers are IEC 60947-2 compliant.

Applications include:

  • Solar PV string protection
  • Hydro turbine cable protection
  • Wind turbine cable protection
  • MPPT input isolation and overcurrent protection
  • MPPT output isolation and overcurrent protection

Read more detail in this topic here.

Note: if wiring your own system in NZ, you can do so for voltages up to 120 VDC (ELV) if you have suitable knowledge and experience. For LV systems (>120 VDC) this is prescribed electrical work and it must be done by a licenced electrician.