The HN series was discontinued in 2019，

You can choose GN series instead.

http://regenerative-drive.sikes-elec.com/Regenerative-drive-and-Braking-Unit/High-end-heavy-load-braking-unit

Characteristic of this series:
Rated power: 55KW-400KW
Rated braking current: ≤400A
Chopper voltage range: DC660V±5V(Jump line)
Voltage grade: 400V
Minimum resistance value: 5.0~1.9Ω
IP protection: IP00/IP23
Terminal:M8
ED: 20%-80%
Vibration: 0.5g
Temperature coefficient: ≤400ppm/℃

Advantages:
Safety:the tripping function against IGBT short circuit breakdown can avoid the fire caused by IGBT breakdown of resistor after overload running.
Wide compatibility:compatible with general resistance rather than non-inductive resistance if it is special design.
Adjustable chopper voltage:DC630V-DC760V.
Economical feature:high ratio of performance to the rensonable price.
Effective and practical for braking circuits of inverter’s
Installation: It adopts a book-shape design and can be installed in parallel connection with zero clearance. It is recommended that up to 3.