Technical Specifications
| Parameter Category | Specification / Inference |
| :--- | :--- | :--- |
| Product Type | Switched-Mode DC/DC Converter (Single Output) |
| Product Family | ABB CP (Control Power) or similar range. 2TAZ is the characteristic prefix. |
| Standard | IEC 62368-1, IEC 61204-7 |
| Input Voltage (Uin) | Defined by code segment 220301. This is the most critical parameter to verify. It is highly likely a common industrial DC voltage. Based on pattern:
• A very strong possibility is 110 V DC (with a wide range, e.g., 80-150V DC).
• Other possibilities: 24V DC, 48V DC, or 220V DC. Must be confirmed via datasheet or nameplate. |
| Output Voltage (Uout) | Regulated 24 V DC. The code R2251 is key:
• R: Regulated.
• 22: Likely a sub-series or design code. The output voltage is most probably the industry-standard 24V DC, not 22V.
• 51: Likely indicates the output current rating. 51 often decodes to 5A (where 5=5A, 1=version or check digit). |
| Output Current (Iout) | Likely 5 A (Inferred from 51 in R2251). |
| Output Power (Pout) | Approximately 120W (If output is 24V/5A: 24V * 5A = 120W). |
| Output Characteristics | • Voltage regulated (±1-2%).
• Short-circuit, overload, and overvoltage protected.
• Galvanic isolation (typically 3-4 kV).
• Low ripple and noise. |
| Efficiency | > 85% (typical for this class). |
| Mounting | 35 mm DIN Rail mounting. |
| Terminations | Screw-clamp terminals. |
| Operating Temperature | -25°C to +70°C (Industrial temperature range). |
| Cooling | Natural convection (fanless). |
| Protection Degree | IP20. |
| Status Indication | LED power indicator. |
| Safety Approvals | CE, UL, cULus. |
| Typical Application | Installed in:
• Low-voltage switchgear (e.g., MNS).
• Motor control centers.
• Automation cabinets.
Function: To supply 120W of 24V DC power to devices such as:
• PLCs and their I/O modules.
• Protective relays (e.g., ABB REF615).
• Sensors, transducers, and HMI panels. |
The ABB 2TAZ220301R2251 is the specific material ordering code for a DC/DC converter or auxiliary control power supply module. It is part of ABB's industrial power supply family, designed to provide a stable, isolated, and regulated DC output voltage from a higher DC input source within electrical control panels and switchgear.