DC MCCB based Switch Disconnectors Ex9MSD are used as a main switch in all kinds of DC applications. Thanks to theirs polarity independence can be used also for PV. They serve there as a main disconnector of DC side of the power plant in combiner or array boxes.
These switch disconnectors have same size and design as standard Ex9M MCCBs. Therefore is there possibility to use fully compatible range of external and internal accessories including extended rotary handles, auxiliary contacts, tripping units, motor operators and terminal covers.

Mounting instruction Ex9MD4, Ex9MD5

Datasheet Ex9MSD DC

EU Declaration of conformity Ex9M5SD DC

Catalogue MCCBs

Coordination and selectivity tables

Ex9M5SD DC 4P

Version as main switch

Version as maintenance-/service switch

Version as safety switch

Version as emergency stop installation

Version as reversing switch

Number of switches

Max. rated operation voltage Ue AC [V]

Rated permanent current Iu [A]

Rated permanent current at AC-23, 400 V [A]

Rated permanent current at AC-21, 400 V [A]

Rated short-time withstand current lcw

Conditioned rated short-circuit current Iq

Number of poles

Motor drive optional

Motor drive integrated

Voltage release optional

Device construction

Suitable for ground mounting

Suitable for front mounting 4-hole

Suitable for front mounting center

Suitable for distribution board installation

Suitable for intermediate mounting

Colour control element

Type of control element

Interlockable

Type of electrical connection of main circuit

Degree of protection (IP), front side