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Siemens 7UM62 Series Multifunctional Protection Relay
- Detailed Model Coding Rules for 7UM62 Series
- Siemens product information PDF and information on alternative brands in China
The Siemens SIPROTEC 4 7UM62 series uses a 12-digit segmented structure. The complete coding format is:
| Code Segment | Description | Standard Options | Remarks |
| 7UM62 | Product Series | 7UM62 | SIPROTEC 4 multifunctional protection for generators, motors and transformers |
| [Function Version] | Protection Function Scope | 11=Standard | Determines protection logic and available algorithms |
| 12=Enhanced | |||
| 13=Full (Generator‑dedicated) | |||
| [Housing Type] | Dimensions & I/O Quantity | 1=1/2 19″, 7BI, 12BO, 1 ready | Defines I/O capacity and display type |
| 2=1/1 19″, 15BI, 20BO, 1 ready | |||
| 3=Graphic display, 1/2 19″, 7BI, 12BO | |||
| [Terminal Type] | Connection Terminal | B=Screw terminal | B for fixed installation; E for frequent replacement |
| E=Plug‑in terminal (2/3‑pin) | |||
| [CT Rating] | CT Ratio & Sensitivity | B=5A standard | Matches on‑site CT for accurate measurement |
| E=1A standard | |||
| H=1A high‑sensitivity (IEE) | |||
| L=5A low‑sensitivity | |||
| [Region/Standard] | Standard & Language | A=Germany, 50Hz, IEC, German | Defines protection curves and HMI language |
| B=Global, 50/60Hz, IEC/ANSI, English (UK) | |||
| C=USA, 60Hz, ANSI, English (US) | |||
| D=Customized | |||
| [Special Function] | Additional Function | 0AA0=Basic | Special functions require separate authorization |
| 0HA0=With communication | |||
| 0AC0=Enhanced event recording | |||
| 0FA0=With synchrocheck |
- Complete Model Matrix of 7UM62 Series (Grouped by Configuration)
2.1 Standard Function Version (7UM6211)
| Complete Model | Order No. | Core Configuration | Application |
| 7UM6211-1BB02-0AA0 | 7UM6211-1BB02-0AA0 | 1/2 19″, 7BI/12BO, screw, 5A CT, global | Small/medium motor protection, general industry |
| 7UM6211-1EB01-0HA0 | 7UM6211-1EB01-0HA0 | 1/2 19″, 7BI/12BO, plug‑in, 1A CT, with comms | Distributed control systems, frequent maintenance |
| 7UM6211-2BB02-0AA0 | 7UM6211-2BB02-0AA0 | 1/1 19″, 15BI/20BO, screw, 5A CT, global | Large motors/transformers, complex logic |
| 7UM6211-2EB91-0AA0 | 7UM6211-2EB91-0AA0 | 1/1 19″, 15BI/20BO, plug‑in, 1A CT, customized | Critical power equipment, custom protection |
| 7UM6211-3BB02-0HA0 | 7UM6211-3BB02-0HA0 | 1/2 19″, graphic display, 7BI/12BO, screw, 5A CT, with comms | Important equipment with local monitoring |
2.2 Enhanced Function Version (7UM6212)
| Complete Model | Order No. | Core Configuration | Enhanced Functions |
| 7UM6212-1EB01-0AC0 | 7UM6212-1EB01-0AC0 | 1/2 19″, 7BI/12BO, plug‑in, 1A CT, event recording | Fault recording, harmonic analysis |
| 7UM6212-2BB02-0FA0 | 7UM6212-2BB02-0FA0 | 1/1 19″, 15BI/20BO, screw, 5A CT, synchrocheck | Grid‑parallel operation, out‑of‑sync prevention |
| 7UM6212-3EB01-0HA0 | 7UM6212-3EB01-0HA0 | 1/2 19″, graphic display, 7BI/12BO, plug‑in, 1A CT, with comms | Graphic UI + advanced comms for smart substations |
2.3 Full Function Version (7UM6213) – Generator Dedicated
| Complete Model | Order No. | Core Configuration | Generator Protection Features |
| 7UM6213-2EB22-0HA0 | 7UM6213-2EB22-0HA0 | 1/1 19″, 15BI/20BO, plug‑in, 1A CT, with comms | 100% stator earth fault, rotor earth fault protection |
| 7UM6213-1BB02-0AA0 | 7UM6213-1BB02-0AA0 | 1/2 19″, 7BI/12BO, screw, 5A CT, global | Small hydro & captive power generators |
| 7UM6213-3EB91-0AC0 | 7UM6213-3EB91-0AC0 | 1/2 19″, graphic display, 7BI/12BO, plug‑in, 1A CT, event recording | Graphic fault analysis for large generators |
2.4 Special Configurations (by CT & Region)
| CT Type | Region Setting | Typical Models | Application Features |
| 5A Standard | Global (IEC/ANSI) | 7UM6211-1BB02-0AA0 | Most industrial power systems |
| 7UM6211-2BB02-0AA0 | |||
| 1A Standard | USA (ANSI) | 7UM6211-1EB01-0CA0 | Standard for North American power systems |
| 7UM6211-2EB01-0CA0 | |||
| 1A High‑Sensitivity | Global (IEC/ANSI) | 7UM6211-1EH01-0HA0 | High‑impedance earthing systems, improved earth fault detection |
| 7UM6211-2EH01-0HA0 | |||
| 5A Low‑Sensitivity | Europe (IEC) | 7UM6211-1BL02-0AA0 | High‑capacity equipment, reduced maloperation |
| 7UM6211-2BL02-0AA0 |
- Core Functions & Technical Specifications
3.1 General Technical Data
| Item | Value | Description |
| Measuring Channels | 8×Current, 4×Voltage | Full monitoring for three‑phase systems |
| Sampling Rate | 24 samples/cycle | Accurate transient capture, high reliability |
| Communication | RS485 standard, Ethernet optional | Supports IEC 60870‑5‑103, Modbus, etc. |
| Supply Voltage | 110/220V AC/DC | Wide‑range design |
| Ambient Temperature | -25℃ ~ +70℃ | Industrial and outdoor installation |
| Protection Degree | IP30 | For panel mounting |
3.2 Core Protection Functions
Integrated comprehensive protection (varies by version):
Overcurrent protection (ANSI 50/51)
Impedance protection (ANSI 21)
Out-of-step protection (ANSI 78)
Over/undervoltage (ANSI 59/27)
Over/underfrequency (ANSI 81)
Stator/rotor earth fault (ANSI 64)
Reverse power (ANSI 32)
Synchrocheck (ANSI 25)
- Selection & Ordering Notes
- Function Version
Standard (11): General motors & transformers
Enhanced (12): Advanced monitoring & event analysis
Full (13): Generator-specific, including 100% stator earth fault
- Housing & I/O
1/2 19″ (7BI/12BO): Space-limited panels
1/1 19″ (15BI/20BO): Complex logic, more I/O
Graphic display (3xx): Local operation & fault diagnosis
- CT Matching
Confirm on-site CT ratio (5A/1A)
High-sensitivity versions for high-impedance earthing
- Region & Standard
Global (B): IEC/ANSI compliant, ideal for export
Regional (A/C): Optimized for local standards
- Replacement Models
7UM62 series is discontinued; recommended successor: 7UM85 series (SIPROTEC 5)
Cross-brand alternatives: ABB REF615, Schneider Sepam 80 series, ABB RET670 (generator-dedicated)
