Ista-Energy ELE-REZYSTOR-12KW Braking Resistor (12 kW, 3-Phase)

A 12 kW 3-phase braking resistor designed to work with wind turbines with a maximum rated power of 8 kW. This passively cooled device is used to dissipate excess electrical energy as heat, protecting the inverter from overloads.

The Ista-Energy braking resistor is a 12 kW 3-phase module dedicated to small and medium wind installations up to 8 kW. The device converts excess energy into heat, protecting the system against voltage spikes and overloads. It is designed for indoor installation on a non-combustible surface, with required ventilation clearances.

Key features

• Protection of inverters against overloads and voltage spikes in wind installations.
• Passive convection cooling requiring no additional fans.
• Housing made of galvanized steel with an IP20 protection rating.
• Connections based on terminal blocks for L1, L2, L3 phases and PE grounding wire.
• Installation requires 70 cm of top clearance and 40 cm of side clearance for proper heat dissipation.

Technical data

Rated power	12 kW
Maximum turbine power	8 kW
Number of phases	3
Operating voltage	380-400 V AC
Phase-to-phase resistance	25 Ohm
Resistance tolerance	±5%
Protection rating	IP20
Operating temperature	-10 °C to +40 °C
Dimensions (H x W x D)	580 x 350 x 150 mm
Weight	9.5 kg
Warranty	24 months