The MSQ Series current transformer is constructed to test, control, display and record the running of electrical equipment. This also protects equipment against deterioration. This transformer is attached onto the case of PPO flame-resistant components. They also satisfy the need to measure the load current through a transformation ratio to a controllable value. These encased metering transformers are manufactured for various applications. MSQ Series transformers are tested and proven to be IEC 44-1 (1996) & ASTA Certified.