Mitsubishi A1S61PN Power Supply Module | Replacement, Equivalent & Selection Guide
The Mitsubishi Electric A1S61PN is a dedicated DC power supply module designed for the MELSEC-A Series programmable logic controller (PLC) platform. It provides stable, regulated power to the A-series base units, ensuring reliable operation in demanding industrial automation environments. This page serves as a comprehensive selection guide, covering technical specifications, compatible replacements, equivalent alternatives, and application scenarios to help engineers and procurement teams make informed decisions.
Technical Specifications
- Model: A1S61PN
- Manufacturer: Mitsubishi Electric
- Series: MELSEC-A (A1S Series)
- Module Type: DC Power Supply Module
- Input Voltage: DC 24V
- Output Capacity: 3A (5VDC internal bus)
- Applicable Base Units: A1S Series slim-type base units (e.g., A1S32B, A1S33B, A1S35B, A1S38B, A1S312B)
- Mounting: Slot-in to A1S base unit
- Weight: Approx. 1,740 g (module + packaging)
- Operating Temperature: 0°C to 55°C
- Storage Temperature: -25°C to 75°C
- Humidity: 5% to 95% RH (non-condensing)
- Standards: CE, UL (refer to Mitsubishi Electric official datasheet for current certifications)
Compatible Replacement & Equivalent Models
When the A1S61PN is discontinued, difficult to source, or requires a cost-effective alternative, the following models are commonly evaluated as replacements or equivalents. Always verify electrical and mechanical compatibility before substitution.
- A1S62PN — AC input variant (100–240VAC); same A1S series form factor; suitable when DC input is unavailable
- A1S63P — Higher-capacity power supply for expanded I/O configurations
- A61P / A62P — Standard A-series (non-slim) power supply modules; require A-series base units, not A1S slim bases
- Q61P / Q62P — Mitsubishi MELSEC-Q series PSU; requires full platform migration to Q-series base and CPU
- Third-party compatible PSU — Select industrial automation suppliers offer drop-in compatible modules; confirm output ratings, connector pinout, and bus voltage before use
Note: Cross-series replacements (A → Q) require hardware and software migration. Contact Konmask.com for migration support.
Why Choose the Original A1S61PN
- Guaranteed compatibility — Factory-matched to A1S series base units with no integration risk
- Proven reliability — Mitsubishi Electric’s MELSEC-A platform has decades of field-proven performance in industrial environments
- Stable DC input — Ideal for facilities with existing 24VDC power infrastructure, reducing additional AC/DC conversion losses
- Minimal downtime — Plug-and-play replacement with no firmware or configuration changes required
- Genuine parts traceability — Konmask.com sources from authorized channels with full documentation
Typical Applications
- Automotive assembly line control panels
- Food & beverage processing machinery
- Packaging and conveyor automation systems
- Water treatment and utility plant SCADA panels
- Semiconductor and electronics manufacturing equipment
- Legacy system maintenance and spare parts management
System Compatibility
The A1S61PN is exclusively compatible with the Mitsubishi MELSEC-A1S slim-type base units. It is not interchangeable with standard A-series (A1N/A2N) or Q-series base units without hardware modification. Confirm your base unit model number before ordering.
| Base Unit | Slots | A1S61PN Compatible |
|---|---|---|
| A1S32B | 2 | ✔ Yes |
| A1S33B | 3 | ✔ Yes |
| A1S35B | 5 | ✔ Yes |
| A1S38B | 8 | ✔ Yes |
| A1S312B | 12 | ✔ Yes |
| A32B / A35B | Standard A | ✘ No |
| Q33B / Q35B | Q-series | ✘ No |
Selection Guide
Use the following decision framework to select the correct power supply module for your MELSEC-A system:
- Step 1 — Identify your base unit: Confirm whether you have an A1S slim-type or standard A-series base unit.
- Step 2 — Check input power source: If your panel supplies DC 24V → select A1S61PN. If AC 100–240V → select A1S62PN.
- Step 3 — Calculate load current: Sum the current draw of all installed I/O and special modules. Ensure the PSU output (3A for A1S61PN) exceeds total load with ≥20% margin.
- Step 4 — Consider lifecycle: For long-term projects, evaluate migration to MELSEC-Q or iQ-R series for extended support and availability.
- Step 5 — Contact Konmask.com: Our technical team can verify compatibility and recommend the optimal solution for your application.
Quality Assurance & Sourcing
- All A1S61PN units supplied by Konmask.com are sourced from verified industrial channels
- Each unit undergoes visual inspection and functional verification prior to shipment
- Certificates of conformity and test reports available upon request
- Packaging integrity maintained throughout storage and logistics
- Both new and refurbished (tested) units available — specify your requirement at time of inquiry
How to Order
- Add the Mitsubishi A1S61PN to your cart on this page, or
- Contact us directly for bulk orders, lead time confirmation, or technical consultation:
- Email: support@konmask.com
- Phone/WhatsApp: +0086 19859288691
- Website: https://Konmask.com
Please provide your base unit model, required quantity, and delivery location for a prompt quotation.
Replacement & Compatibility FAQ
Q: Can I use the A1S62PN instead of the A1S61PN?
A: Yes, if your panel can supply AC 100–240V. The A1S62PN is the AC-input equivalent and fits the same base unit slot.
Q: Is the A1S61PN still in production?
A: The MELSEC-A series has reached end-of-life status. Konmask.com maintains stock of genuine and tested units for legacy system support.
Q: Can I replace the A1S61PN with a Q-series PSU?
A: No — Q-series power supplies require Q-series base units. A full platform migration is required.
Q: What is the difference between A1S61PN and A61P?
A: The A1S61PN is for slim-type A1S base units; the A61P is for standard-size A-series base units. They are mechanically incompatible.
Q: Do you offer warranty on the A1S61PN?
A: Yes. Konmask.com provides a 90-day warranty on all tested units. New units carry the original manufacturer warranty where applicable.
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Contact: support@konmask.com | +0086 19859288691
