Description
GE Modicon Micro II MMII-PD-1-2-120 Power Supply Module for Industrial Control Systems
If you’re maintaining legacy Modicon Micro II systems (and let’s be honest, plenty of plants still are), this power supply module keeps your critical processes humming without forcing a full PLC overhaul. One thing I appreciate is how it handles voltage spikes in older manufacturing environments – last month a food processing plant avoided a $20k downtime incident because this little workhorse didn’t flinch during a compressor surge.
Why Maintenance Teams Keep Ordering These
- 120VAC to 24VDC conversion – Handles unstable shop floor power without dropping your I/O. In many cases, it smooths out those annoying brownouts that crash newer “smart” PSUs.
- Short-circuit protection – Automatically recovers after faults. From my experience, this saves technicians midnight emergency calls when a sensor wire chafes against a conduit.
- DIN-rail mounting – Slides right into existing Micro II racks. You might notice the clip design prevents accidental dislodging during cabinet vibrations (unlike some knockoffs).
- Wide operating range – Keeps working in that sweltering boiler room where other supplies tap out around 55°C.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand/Model | GE Modicon Micro II MMII-PD-1-2-120 |
| HS Code | 8537.10.9100 (Programmable controller power supplies) |
| Power Requirements | Input: 100-120VAC ±10%, 50/60Hz | Output: 24VDC @ 2A |
| Dimensions & Weight | 120mm H × 100mm W × 75mm D | 480g |
| Operating Temperature | -10°C to +60°C (derate above 45°C) |
| Installation Method | Standard DIN rail (EN 60715 TS35) |
Where You’ll Actually Use This
Typically found keeping decades-old systems alive in municipal water treatment plants (where that 24VDC powers valve actuators), textile mills with vintage Micro II racks, and food processing lines where upgrading the entire PLC isn’t in the budget. One customer in Ohio told me it’s been running their bottling line’s conveyor controls since 2008 – kinda impressive for something that costs less than a fancy coffee maker.
Procurement Value You Won’t Find in Brochures
Forget “future-proof” marketing fluff – this solves today’s headache. Compatibility with Micro II backplanes means no rewiring costs, and the 365-day warranty beats the 90 days you’d get on generic replacements. Plus, when you need it yesterday (and you always do), we ship in-stock units within a week via your choice of FedEx, UPS, or DHL. Payment’s simple: 50% upfront, balance before shipment. No nasty surprises.
Installation & Maintenance Reality Check
Mount it on standard DIN rail with 10mm clearance on both sides – cramming it next to heating elements will shorten its life. Always use stranded wire with ferrules; I’ve seen too many failures from solid-core wires vibrating loose. Clean dust from vents quarterly (that paper mill in Georgia learned this the hard way), and while firmware updates aren’t needed, check terminal torque annually. Safety first: Disconnect ALL power sources before servicing – this thing stores enough juice to sting even when off.
Certifications & Peace of Mind
UL 508 listed, CE marked to EN 61131-2, and RoHS compliant. The 365-day warranty covers defects in materials/workmanship – but realistically, if it fails within a year, we’ll replace it no questions asked. No fine print about “proper installation” loopholes like some vendors. Just keep it within spec and we’ve got your back.
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