Each RED by Lorch welding machine has a nameplate that contains the most important technical data and safety information.
This information is not only important for safe operation but also for maintenance, service requests, or comparing different devices.
The following explains the nameplate of the RED MIG 210 SYN as an example.
| Number | Description |
| 1 | Standards |
| 2 | Year of manufacture |
| 3 | Serial number |
| 4 | Minimum to maximum rated value of the welding current with corresponding minimum to maximum standardized welding voltage |
| 5 | Relative duty cycle |
| 6 | Rated value of the welding current |
| 7 | Conventional welding voltage |
| 8 | Largest effective supply current |
| 9 | Weight |
| 10 | Rated value of the maximum supply current |
| 11 | Caution: Read the operating instructions |
| 12 | WEEE label |
| 13 | CE label |
| 14 | S label |
| 15 | QR code for serial number |
| 16 | Degree of protection |
| 17 | Supply circuit: number of phases, alternating current, rated value of the supply frequency |
| 18 | Rated value of the supply voltage |
| 19 | Electrode welding |
| 20 | Rated value of the open-circuit voltage |
| 21 | Direct current |
| 22 | TIG welding |
| 23 | MIG-MAG welding |
| 24 | Single-phase Static Frequency Converter Transformer with Rectifier |
| 25 | Type of device |
Device Designation
RED MIG 210 SYN
Model designation of the welding machine
Serial Number
SN: 4157-1127657
Serial number of the device. It is unique and required for warranty, service and spare parts inquiries.
Standard
EN 60974-1
European standard for arc welding equipment.
It specifies safety and performance requirements that every welding machine must meet.
Manufacture Date
DATE: 2025
Year of manufacture of the device. Relevant, for example, for traceability.
Welding Current and Duty Cycle
| Symbol / Value | Meaning | Explanation |
|---|---|---|
| X | Duty Cycle | Indicates how long the device may be operated within a 10-minute cycle before it must cool down. |
| I₂ | Welding Current | Specifies the current strength that the device delivers during welding operation. |
| U₂ | Welding Voltage | Voltage present during welding. It depends on the current. |
Example (RED MIG 210 SYN):
| Duty Cycle (X) | Current (I₂) | Voltage (U₂) | Meaning |
|---|---|---|---|
| 20 % | 200 A | 24 V | Device may weld for 2 minutes, then cool down for 8 minutes. |
| 60 % | 115 A | 19.8 V | Device may weld for 6 minutes, then cool down for 4 minutes. |
| 100 % | 89 A | 18.5 V | Device can be operated continuously at 89 A. |
Note:
The duty cycle is important to avoid a thermal overload.
If exceeded, the device switches off automatically until it has cooled down.
Open Circuit Voltage
U₀ = 51 V
The open circuit voltage describes the voltage present when no arc is burning.
It affects how easily the arc can be ignited – a higher voltage facilitates ignition.
Power Supply
U₁ = 230 V
Rated voltage of the device.
The RED MIG 210 SYN operates with 230 V alternating current (single-phase), i.e., via a standard household socket.
1~ 50/60 Hz
The device operates with single-phase alternating current at 50 or 60 Hz mains frequency.
Current Consumption
| Symbol | Value | Meaning |
|---|---|---|
| Imax = 35 A | Maximum current consumption | Short-term current peak at the start of the welding process. Important for circuit protection. |
| Ieff = 16 A | Effective current consumption | Average current consumption during operation. The device should be operated on a 16 A fused socket. |
Protection Class
IP21S
IP: International protection rating according to EN 60529
First digit (2x): Protected against solid foreign objects > 12 mm (e.g., fingers).
Second digit (x1): Protected against vertically falling drops of water.
S: Device is tested for welding applications (special test).
This means:
The device must not be operated in rain or in very humid environments.
Weight
Mass = 10 kg
The empty weight of the device.
Helpful, for example, during transport or for choosing a suitable workplace.
Symbols and Markings
CE Marking: Device complies with European safety directives.
WEEE symbol (crossed-out wheelie bin): Device must not be disposed of with household waste.
Book symbol: Read the operating manual before use.
Manufacturer Information
RED by Lorch – Lorch Schweißtechnik GmbH
Im Anwänder 24–26, 71549 Auenwald, Germany
www.redbylorch.com
This information is important for service, spare parts and warranty processing.
Summary
The nameplate provides all essential information about:
Performance (maximum welding current, voltage, duty cycle)
Power Supply (230 V, 16 A fuse)
Safety Standards (standards, protection class, CE)
Traceability (serial number, manufacture date)
Always have your device's serial number ready when contacting us with a service request or warranty registration.
This way we can identify your device clearly and assist you more quickly.