TLB series is a reinforced polyester enclosed load break switch with line and load side terminal covers. It features an opaque lift-off lid and has a 4P configuration. The switch is rated for AC21 A at 690 V with a current capacity of 250 A. It also has an AC23 A rating at 690 V, which allows for a maximum current of 250 A and a power rating of 138kW. The cable size supported by this switch is 150 sq-mm. With an IP65 rating, it offers protection against dust and water ingress. The dimensions of the switch are 270 mm width, 360 mm height, and 170 mm depth.