Control Transformers Safety isolating transformer single phase DIN rail mount (up to 250VA) or Surface mount with screws (400VA & above) Terminals with finger protection IP2x or xxB up to 400VA New design provides interference filter between windings Clear laser engraved markings Suitable for maximum 50°C ambient, without de-rating Standards IEC 61-558-2-2 and 2-4 or 2-6 Supplied with 0V/earth connection link Approvals UL506, CSA