Siemens 3VU1300-1TM00 Transformer Protection Relay

Siemens 3VU1300-1TM00 Transformer Protection Relay is a molded‑case circuit‑breaker engineered for transformer protection in switchgear and distribution networks. This 3VU family device provides transformer protection with integrated auxiliary contacts—one normally open and one normally closed—plus screw‑terminal wiring to simplify field connections and interlock with control electronics. Designed for use in substations and industrial plants, the unit supports signaling and trip control schemes required for transformer fault protection, and it can be coordinated with other Siemens protection devices and automation systems. As a transformer‑protection variant, it is intended to interrupt fault current to protect transformers and associated equipment, while its auxiliary contact allows monitoring or interlock logic to be fed to remote monitoring or PLC systems. The 3VU1300 series shares Siemens’ approach to compact, rugged protection gear with standardized mounting interfaces, enabling straightforward replacement or cross‑compatibility within the 3VU line. For engineers selecting a transformer‑protection device, this model provides a purpose‑built solution that fits Siemens protection architectures and substitutes where a 3VU1300‑series protector with auxiliary signaling is required. To confirm exact electrical ratings, operating characteristics, and physical dimensions for the 3VU1300‑1TM00 variant, consult the official Siemens product catalog entry or distributor datasheets for this specific part number.