Siemens · PLC Module
7UT6121-5EB90-1AA0-L0ACC
Siemens Numerical differential 7UT6121-5EB90-1AA0-L0A/CC
Siemens
Siemens Numerical differential 7UT6121-5EB90-1AA0-L0A/CC
['Home', 'Protection Relays', 'Siemens SIPROTEC 4', '7UT61', '7UT6121-5EB90'] Need Siemens 7UT6121-5EB90-1AA0…
Specifications
| Brand | Siemens |
|---|---|
| Model Number | 7UT6121-5EB90-1AA0-L0A/CC |
| Official Product Name | SIPROTEC 4 Differential Protection Relay |
| Applicable System | Power system protection / Substation |
| Product Type | Numerical differential protection relay |
| Equivalent Standard | IEC 61850 / IEC 60834 |
| Product Status | Active |
| Lifecycle note | Active (verify availability) |
| Current transformer rating | 1 A |
| Auxiliary supply | DC 110-250 V, AC 115-230 V |
| Binary inputs | 3 |
| Binary outputs | 4 + 1 watchdog contact |
| Display | 4-line backlit alphanumeric, 7 LEDs |
| Communication | Modbus RS485 (Port B); IEC 61850 option (Port B variant) |
| Case | 1/3 x 19 inch, flush mounting |
| Frequency | 50/60 Hz |
| Country of origin | Germany |
| Protection functions | Differential protection (87T/G/M/L), overload, lockout |
Product Description
Basic Product Information
- 1/3 19-inch flush-mounting case
- 4-line alphanumeric backlit display with 7 LEDs
- 3 binary inputs, 4 binary outputs, 1 watchdog contact
- 1 A current transformer input, wide DC/AC auxiliary supply
- Digital differential protection for transformer, generator, motor, cable
Technical Specifications
Version & Model Difference
['7UT6121 (basic differential) vs 7UT82/7UT85 (multifunction): higher-end devices offer more functions and IEC 61850 as standard.', 'The -L0A/CC suffix denotes language/region and option configuration; confirm exact port fit (Modbus vs IEC 61850) before ordering.']
Application Scenarios
- Transformer differential protection
- Generator and motor protection
- Short cable and busbar protection
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