Can choose to open or close the GRD9 module.The GRD9 module can be locked by a padlock.
In complicance with IEC/EN60898-1.
With indicator function in the contact position.
Bilateral busbar wiringcapabilities to adapt to thewider use of premises.Maximum connecting ability of 25mm2 , wiring torque 3N*m, applicable to a variety of installing equipments, wiring stronger.