Siemens 4AT3612-5AT10-0FA0 SITAS Control Circuit Transformer

Description

The 4AT3612-5AT10-0FA0 is a SITAS single-phase control circuit transformer designed for reliable voltage transformation in industrial control systems. This unit functions as both a control circuit transformer and an isolation transformer, featuring a primary voltage of 400V (+/- 5%) and a secondary voltage of 230V. It offers a rated power of 5 kVA and an intermittent duty power (S6) of 18.5 kVA, with a secondary current output of 21.7 A. Engineered for performance in demanding environments, it maintains an H-class insulation system for high thermal tolerance. The transformer utilizes a screw connection terminal design and is suitable for screw-mounting installations in electrical panels.

Features

• Transformer Type: Single-phase SITAS control and isolation transformer
• Power Ratings: 5 kVA (rated) / 18.5 kVA (S6 intermittent duty)
• Voltage Specifications: 400V (+/- 5%) Primary / 230V Secondary
• Output Current: 21.7 A
• Frequency Range: 50/60 Hz
• Insulation: H-class temperature rating (up to 55 degC ambient)
• Connections: Integrated screw terminal connections
• Standards: EN 61558-2-1, -2-2, -2-4; UL/CSA-Recognized

Applications

• Industrial control panels and automation cabinets
• Machine tool power distribution
• Galvanic isolation for control circuitry
• Voltage adjustment for auxiliary equipment

Technical Specifications

Installation Guidelines

• Mounting: Secure the transformer using the integrated screw mounting points on a stable, vibration-resistant surface within an enclosure.
• Ventilation: As the device is rated IP00, ensure installation in a protected enclosure with adequate natural or forced convection to dissipate heat during operation.
• Wiring: Connect primary and secondary leads to the designated screw terminals. Use appropriately sized conductors to handle the rated secondary current of 21.7 A.
• Safety: Ensure the enclosure is properly grounded. Observe all local electrical codes regarding isolation transformers and circuit protection (fusing/circuit breakers) on both primary and secondary sides.
• Environment: Ensure the ambient temperature does not exceed the rated 55 degC limit for the specified insulation class.