A power meter for monitoring one or more phases of power that is delivered to a load, comprising: a power meter housing having a front side with a display and a back side opposite the front side; a terminal block (314, 316) movable relative to the power meter housing and releasably securable into two different orientations including: a first orientation where two or more terminals of the terminal block face in a first direction towards the front side of the power meter, in a manner that enables wiring access to the front side of the power meter; and a second orientation where the two or more terminals of the terminal block face in a second direction towards the back side of the power meter, in a manner that enables wiring access to the back of the power meter, wherein the two or more terminals of the terminal block are exposed to outside of the power meter housing in both the first orientation and the second orientation; and whereby the power meter further comprises: a controller operatively coupled to the two or more terminals of the terminal block in the first orientation and in the second orientation, the controller configured to determine a number of power monitor parameters for one or more phases of power that is delivered to a load based at least in part on signals at the two or more terminals of the terminal block. a power meter housing having a front side with a display and a back side opposite the front side; a terminal block (314, 316) movable relative to the power meter housing and releasably securable into two different orientations including: a first orientation where two or more terminals of the terminal block face in a first direction towards the front side of the power meter, in a manner that enables wiring access to the front side of the power meter; and a second orientation where the two or more terminals of the terminal block face in a second direction towards the back side of the power meter, in a manner that enables wiring access to the back of the power meter, wherein the two or more terminals of the terminal block are exposed to outside of the power meter housing in both the first orientation and the second orientation; and whereby the power meter further comprises: a controller operatively coupled to the two or more terminals of the terminal block in the first orientation and in the second orientation, the controller configured to determine a number of power monitor parameters for one or more phases of power that is delivered to a load based at least in part on signals at the two or more terminals of the terminal block. a first orientation where two or more terminals of the terminal block face in a first direction towards the front side of the power meter, in a manner that enables wiring access to the front side of the power meter; and a second orientation where the two or more terminals of the terminal block face in a second direction towards the back side of the power meter, in a manner that enables wiring access to the back of the power meter, wherein the two or more terminals of the terminal block are exposed to outside of the power meter housing in both the first orientation and the second orientation; and whereby the power meter further comprises: a controller operatively coupled to the two or more terminals of the terminal block in the first orientation and in the second orientation, the controller configured to determine a number of power monitor parameters for one or more phases of power that is delivered to a load based at least in part on signals at the two or more terminals of the terminal block.