IEC 60417-5221 Isotating transformer | Pr01-001 Fail-safe separating trasformer Separating transformer, fail-safe | Pr01-018 Non-short-circuit proof isolating transformer for the supply of medical locations Isolating transformer for the supply of medical locations, non-short-circuit proof |

Pr01-009 Fail-safe isolating transformer Isolating transformer, fail-safe | Pr01-010 Non short-circuit proof isolating transformer Isolating transformer, non-short-circuit proof (inherently or non-inherently) | Pr01-011 Short-circuit proof isolating transformer (inherently or non-inherently) Isolating transformer, short-circuit proof |

Pr01-002 Fail-safe control trasformer Control transformer, fail-safe Triangle should be used for caution/warning. | Pr01-003 Non short-circuit proof control transformer (inherently or non-inherently) Control transformer, non-short-circuit proof Triangle should be used for caution/warning. | Pr01-004 Short-circuit proof control transformer (inherently or non-inherently) Control transformer, short-circuit proof Triangle should be used for caution/warning. |

Pr01-012 Fail-safe safety isolating transformer Safety isolating transformer, fail-safe | Pr01-013 Non-short-circuit proof safely isolating transformer Safety isolating transformer, non-short-circuit proof | Pr01-014 Short-circuit proof safety isolating transformer Safety isolating transformer, short-circuit proof |

Pr01-019 Fail-safe isolating perturbation attenuation transformer Isolating transformer, perterbation attenuation, fail safe | Pr01-020 Fail-safe safety isolation perturbation attenuation transformer Isolating transformer, perterbation attenuation, fail safe, safety | |

Pr01-021 Short-circuit proof isolating perturbation attenuation transformer (inherently or non-inherently) Isolating transformer, short-circuit proof, perterbation attenuation | Pr01-022 Short-circuit proof safety isolating perturbation attenuation transformer (inherently or non-inherently) Safety isolating transformer, short-circuit proof, perterbation attenuation | |

Pr01-023 Fail-safe reactor Reactor, fail-safe | Pr01-024 Non-overload proof reactor Reactor, non-loverload proof | Pr01-025 Overload proof reactor Reactor, overload proof |

Pr01-015 Fail-safe auto-transformer Auto-transformer, fail-safe | Pr01-016 Non-short-circuit proof auto-transformer Auto-transformer, non-short-circuit proof | Pr01-017 Short-circuit proof auto-transformer Auto-transformer, short-circuit proof |

Pr01-027 Fail-safe isolating transformer for construction sites Isolating transformer for construction sites, fail-safe | Pr01-028 Fail-safe safefy isolating transformer for construction sites Isolating transformer for construction sites, fail-safe, safety | Pr01-026 Fail-safe isolating transformer for construction sites with mid-point or star-point earthed Isolating transformer for construction sites, fail-safe, mid-point or star-point earthed |

Pr01-029 Non-short-circuit proof isolating transformer for construction sites Isolating transformer for construction sites, non-short-circuit proof | Pr01-030 Non-short-circuit proof safety isolating transformer for construction sites Isolating transformer for construction sites, non-short-circuit proof, safety | Pr01-031 Non-short-circuit proof isolating transformer for construction sites with mid-point or star-point earthed Isolating transformer for construction sites, non-short-circuit proof, mid-point or star-point earthed |

Pr01-032 Short-circuit proof isolating transformer for construction sites (inherently or non-inherently) Isolating transformer for construction sites, Short-circuit proof (inherently or non-inherently) | Pr01-033 Short-circuit proof safety isolating transformer for construction sites Isolating transformer for construction sites, short-circuit proof, safety | Pr01-034 Short-circuit proof isolating transformer for construction sites with mid-point or star-point earthed (inherently or non-inherently) Isolating transformer for construction sites, Short-circuit proof (inherently or non-inherently), mid-point or star-point earthed |

Pr01-005 Fail-safe ignition transformer with one end of the output winding connected to the earth Ignition transformer, one end of the output winding connected to the earth, fail-safe | Pr01-006 Fail-safe ignition transformer with the mid-point of the output winding connected to the earth Ignition transformer, the mid-point of the output winding connected to the earth, fail-safe | |

Pr01-007 Inherently short-circuit proof ignition transformer with one end of the output winding connected to the earth Ignition transformer, inherently short-circuit proof, one end of the output winding connected to the earth | Pr01-008 Inherently short-circuit proof ignition transformer with the mid-point of the output winding connected to the earth Ignition transformer, inherently short-circuit proof, the mid-point of the output winding connected to the earth |