Comparison Mechanical–Solid State Switch

Item	Mechanical Switch	Solid State Switch
Switch Total Loss	Low	High
Switch Time	Slow（>3-20ms）	Fast（<20us）
Mechanical Size	Small	Medium

The power loss over a DC-Breaker can be several kilowatts. Therefore in most of this system a water cooling is recommended. In cases where water cooling is not possible air cooling can be done. In the case of air cooling the size of the switch is much bigger.

Application Fields：

Apart from the shipping industry, the product can also be used in renewable energy connection, battery storage applications and DC or combined DC and AC microgrids.

DC breaker Series

	500A	1kA	2kA	3kA	4kA	5kA
1kV	√	√	√	√	√	√
3kV	√	√	√	√	√	√
6kV	√	√	n/a	n/a	n/a	n/a

√: Product available n/a: not available

FEATURES

• DC-Voltage Capability up to 1500V for 1kV Version

• Current rating 0 – 5kA (depending on model)

• Switch-off current up to 20kA (depending on model)

• Very short off time in µs range

• Totally isolated to the main grid

• Can be used in high or low side power switching

• Bidirectional current flow

• Liquid cooling

• Internal self-diagnostic capability

• Gate Drive Unit

• Water In- and Outlet Temperature

• Water In- and Outlet Pressure

• Interface to overall controller

• Optical (Glass or Plastic)

• Modbus-TCP

• Other protocols on request

• DNV-GL type approval (pending)

ORDERING INFORMATION

IDENT NUMBER	DESCRIPTION
AA-10411-101	DC-Breaker	0.5kA	1kV
AA-10411-102	DC-Breaker	1kA	1kV
AA-10411-103	DC-Breaker	2kA	1kV
AA-10411-104	DC-Breaker	3kA	1kV
AA-10411-105	DC-Breaker	3.5kA	1kV
AA-10411-106	DC-Breaker	4kA	1kV
AA-10411-107	DC-Breaker	4.5kA	1kV
AA-10411-108	DC-Breaker	5kA	1kV

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