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Siemens 3UF7100-1AA00-0 Specs: SIMOCODE pro Current Measuring Module Guide
The Siemens 3UF7100-1AA00-0 is a SIMOCODE pro current measuring module designed for motor circuits with an adjustable current range of 0.3–3 A. It features a 45 mm overall width, three-phase straight-through current measurement, and 7.5 mm feed-through openings. The module measures motor current and supplies measurement information to a compatible SIMOCODE basic unit for motor monitoring and protection. Its main selection requirements are the motor’s rated current, conductor dimensions, phase routing, and compatibility with the installed SIMOCODE system.
Siemens 3UF7100-1AA00-0 Technical Specifications
The 3UF7100-1AA00-0 is designed for low-current motor applications. Its through-hole transformer arrangement allows the three main circuit conductors to pass through the designated measurement openings.
| Specification | Details |
|---|---|
| Manufacturer | Siemens |
| Product family | SIRIUS SIMOCODE pro |
| Complete model number | 3UF7100-1AA00-0 |
| Product type | Current measuring module |
| Adjustable current range | 0.3–3 A |
| Overall width | 45 mm |
| Measurement principle | Straight-through current transformer |
| Number of main circuit phases | 3 |
| Feed-through opening diameter | 7.5 mm |
| Current measurement | Yes |
| Voltage measurement | No |
| Active power measurement | No |
| Energy measurement | No |
| Frequency measurement | No |
| Rated insulation voltage | 690 V |
| Rated impulse withstand voltage | 6 kV |
| Protection rating | IP20 |
| Shock resistance | 15 g / 11 ms |
| Mounting | Snap-on mounting or screw attachment with specified accessories |
| Operating temperature | -25°C to +60°C |
| Storage temperature | -40°C to +80°C |
| Weight | Approximately 0.163 kg |
Source: Siemens official 3UF7100-1AA00-0 datasheet and the SIMOCODE pro system manual.
How Does the 3UF7100-1AA00-0 Measure Motor Current?
The module uses a straight-through current transformer arrangement. The three phase conductors pass through separate measurement openings, allowing the module to detect current flowing through the motor supply circuit.
The measured current information is transmitted to the connected SIMOCODE basic unit. The basic unit processes this information for configured motor monitoring and protection functions.
This arrangement has several practical implications:
- Each phase conductor must pass through its designated opening.
- Phase assignment and conductor routing must follow Siemens wiring instructions.
- The conductor diameter must fit the 7.5 mm feed-through opening.
- The measuring module must be connected to a compatible SIMOCODE system.
The 3UF7100-1AA00-0 is not an independent motor protection controller. It provides current measurement as one component of a larger motor management configuration.
Why the 0.3–3 A Current Range Matters
The most important selection parameter is the module’s adjustable current range of 0.3–3 A. It is intended for relatively low-current motor circuits where a higher-range measuring module may not provide the required measurement range.
For example, consider a motor with a rated current of 1.2 A. This value falls within the module’s specified range and can be evaluated for the intended SIMOCODE configuration.
A motor with a rated current of 4 A exceeds the upper limit. In that situation, engineers should evaluate a higher-range module rather than attempting to use the 3UF7100 outside its specified range.
The motor nameplate current should be used as the starting point. Supply voltage, motor operating conditions, starting behavior, and configured protection requirements must also be considered.
3UF7100 vs 3UF7101: Which Current Measuring Module Should You Choose?
Siemens provides several SIMOCODE current measuring modules with different current ranges and physical connection dimensions. The 3UF7100 and 3UF7101 are both through-hole versions, but they serve different motor current requirements.
| Model | Current range | Feed-through diameter | Overall width |
|---|---|---|---|
| 3UF7100-1AA00-0 | 0.3–3 A | 7.5 mm | 45 mm |
| 3UF7101-1AA00-0 | 2.4–25 A | 7.5 mm | 45 mm |
| 3UF7102-1AA00-0 | 10–100 A | 14 mm | 55 mm |
| 3UF7103-1AA00-0 | 20–200 A | 25 mm | Not specified here |
The 3UF7100 is appropriate to evaluate for lower-current applications, while the 3UF7101 covers a higher range. Their current ranges overlap between 2.4 A and 3 A, so selection in this region should consider measurement requirements and the complete system configuration.
For more information about the higher-range version, see the Siemens 3UF7101-1AA00-0 current measuring module guide.
Installation and Compatibility Considerations
The 3UF7100-1AA00-0 supports snap-on mounting and screw attachment using the specified mounting accessories. Siemens documentation identifies the 3RP1900-0B mounting lugs for screw attachment.
For current measuring modules up to 25 A, the specified installation arrangement may also require a 25 mm spacer. Check the mounting instructions for the actual installation rather than assuming the module can be attached directly to any control cabinet surface.
Before installation, verify the following:
- Basic unit compatibility: Confirm that the installed SIMOCODE basic unit supports the selected current measuring module.
- Current range: Check that the motor’s operating current is suitable for the 0.3–3 A range.
- Conductor dimensions: Confirm that the three phase conductors fit the 7.5 mm openings.
- Phase assignment: Follow the manufacturer’s L1, L2, and L3 routing instructions.
- Mechanical installation: Check the required mounting rail, mounting lugs, and spacer arrangement.
- System commissioning: Verify measurement values and configured motor protection parameters after installation.
For the overall motor management architecture, consult the Siemens 3UF7010-1AU00-0 SIMOCODE pro V basic unit guide. The basic unit and current measuring module perform different functions and must be evaluated together for the intended system.
What Should Buyers Check Before Ordering?
For industrial replacement projects, matching the model number is only the first step. The existing SIMOCODE configuration and motor current requirements should be confirmed before ordering.
Prepare the following information:
- Complete part number: 3UF7100-1AA00-0.
- Motor nameplate current and supply voltage.
- Existing SIMOCODE basic unit reference.
- Conductor diameter and installation arrangement.
- Required quantity and product condition.
- Destination and delivery requirements.
You can browse the Siesource industrial automation product catalogue for related Siemens automation components. When requesting a quotation for this measuring module, include the full part number and existing SIMOCODE configuration to help confirm the required component.
Frequently Asked Questions
What is the current range of Siemens 3UF7100-1AA00-0?
The module has an adjustable current range of 0.3–3 A. It is designed for low-current motor applications within this specified range.
What is the diameter of the feed-through openings?
Each feed-through opening has a diameter of 7.5 mm. The three phase conductors must be routed according to Siemens installation instructions.
Does the 3UF7100-1AA00-0 measure voltage or power?
No. Its specified function is current measurement. Voltage, active power, energy, and frequency measurement are not provided by this module.
What is the difference between 3UF7100 and 3UF7101?
The 3UF7100-1AA00-0 covers 0.3–3 A, while the 3UF7101-1AA00-0 covers 2.4–25 A. Both use 7.5 mm feed-through openings and have a 45 mm overall width.
Conclusion
The Siemens 3UF7100-1AA00-0 is a 45 mm SIMOCODE pro current measuring module with a 0.3–3 A adjustment range and three 7.5 mm feed-through openings. Its straight-through measurement design makes it suitable for evaluating low-current motor applications within a compatible SIMOCODE system. Before purchasing or replacing the module, verify the motor current, basic unit compatibility, conductor dimensions, phase routing, and installation arrangement.