PLC Autocontroller | 20 years of excellence in industrial automation parts supply
7UT5131-5CB01-1BA0/KL | Differential Protection Relay
PLC Autocontroller | Sales Manager May | Wechat id: dcsfcs
Product Identification
Model: 7UT5131-5CB01-1BA0/KL
Manufacturer: Siemens
Type/Function: Differential protection relay for transformers, generators, motors, and other equipment
What it is?
7UT5131-5CB01-1BA0/KL is a Siemens 7UT51 series multi-function protection relay — 4-CT/3-PT inputs,
3 DI/4 DO, 24-250 V DC/115-230 V AC supply, 50 ms trip, IP65 front — bolts onto any switch-gears,
no external CT shorting required.
Core parameters
System voltage: 100-240 V AC / 380-480 V AC (PT)
Rated current: 1 A or 5 A (CT selectable) fits existing CTs, no rewiring
Functions: over-current, earth-fault, differential, thermal one relay = entire feeder protection
Inputs: 4 × CT + 3 × PT + 3 × DI 3-phase + earth + status signals
Outputs: 4 × trip relays + 1 × alarm direct trip coil drive, 250 V AC 8 A
Supply: 24-250 V DC / 115-230 V AC same 24 V rail as PLC, dual inlet
Response: < 50 ms trip meets IEC 60255-5 class P
Temp: –25 … +60 °C
Applications
l Differential protection: Monitors the differential current of equipment (such as transformers, generators, and motors) to detect internal short circuits or faults.
l Overload protection: Combined with differential protection, it protects equipment from overload conditions.
l Multi-winding/multi-port support: Supports differential monitoring of three-winding transformers, three-port systems, three-terminal systems, and multiple terminals.
l Multiple frequency support: Supports 50/60 Hz, the common industrial grid frequencies, and 16.7 Hz, commonly used by railways and specialized power systems.
Contact Hotline
Sales Manager May
E-mail: ab@mooreplc.com
Phone: +86-18106909650 (whatsapp)
Wechat id: dcsfcs
What happens next?
-
-
-
Your quote
You’ll get a fully customized quote to fit your unique needs.
-
