ZB8110 External braking resistor

ZB8110 | External braking resistor

During the acceleration phase, a motor needs energy supply, whereas during braking a motor can be used as a generator, feeding energy back into the DC-Link, which raises the voltage in the DC-Link. If the voltage exceeds the adjustable threshold value, a ballast resistor is activated.

The external ZB8110 ballast resistor is available as an accessory to the EL9576 brake chopper terminal or the KL9570 buffer capacitor terminal. It regulates the DC-Link voltage as soon as more braking power is needed. It has a maximum continuous rating of 100 W. The ZB8110 is connected directly to the EL9576 or KL9570. A mounting plate is included in the scope of supply for each ballast resistor.

Technical data ZB8110
Rated output 100 W
Cable length 1000 mm
Wire cross section AWG16/1.5 mm²
Resistance value 10 Ω
Operating voltage maximum:
≤ 700 V AC; ≤ 1000 V DC considering self protection
≤ 600 V AC; ≤ 850 V DC considering CSA and UL approvals
Insulation voltage ≥ 4000 V at 50 Hz/1 min
Energy consumption 4 kJ at 1.2 s (1 % ED)
8 kJ at 7.2 s (6 % ED)
Special features incl. mounting plate (110 mm x 31 mm x 28.5 mm)
Operating/storage temperature 0…+55 °C/-25…+85 °C
Dimensions (W x H x D) 110 mm x 80 mm x 15 mm
Weight 0.28 kg
Casing temperature ≤ 250 °C
Protect. class/installation pos. IP 65/variable
EL9576 brake chopper terminal, 72 V, 155 µF
KL9570 Buffer capacitor terminal