Three-phase electronic multi-tariff prepayment energy meter box is the new product of our company which has obtained national patent. The new appearance design has considered novelty style, convenience to operate and anti-tamper features. The design also features with good sealing performance, good insulation property and good security. Function: It is applicable to many kinds of energy meters, and can be used with single/three phase electronic prepayment energy meter and single/three electronic multi-tariff prepayment energy meter (CPU card energy meter). The three-phase energy meter box can not only be used with three-phase prepayment/multi-tariff energy meter, but also be used as a component of large energy meter which integrating the function of prepayment/multi-tariff measuring and load control. Main Technical Characteristics: Protection Class: IP54 Double Insulation Class Fireproofing class: V0 (Meter box uses fireproof material) Anti-ultraviolet radiation.