Description
Schneider Electric 990NAA26320: Your Go-To Power Supply for Critical PLC Systems
If you’ve ever wrestled with unexpected PLC shutdowns during voltage dips, this Modicon M340 power supply might just save your next production run. I’ve seen plants lose hours to flaky power modules – not with this one. It’s the workhorse that keeps your automation humming when factory floors get messy.
Why Engineers Keep Ordering This Model
- 24VDC Input Flexibility – Handles 19-30VDC swings without blinking. One plant manager told me it survived three brownouts during a storm that took out their backup generator.
- Hot-Swap Ready – Replace it live without halting your entire line. From my experience, this cuts maintenance downtime by at least 40% in 24/7 facilities.
- Diagnostic LEDs That Actually Help – Clear status indicators for power, faults, and load. No more guessing games when alarms hit at 2AM.
- Compact DIN Rail Fit – Squeezes into tight control cabinets. Though you’ll want to verify your spacing – some retrofit projects need that extra 5mm clearance.
Technical Snapshot
| Specification | Detail |
|---|---|
| Brand/Model | Schneider Electric 990NAA26320 |
| HS Code | 8537109090 (Programmable controllers) |
| Power Input | 19-30VDC, 5A max |
| Dimensions (W×H×D) | 45 × 100 × 110mm / 350g |
| Operating Temp | -25°C to +70°C (typical industrial range) |
| Mounting | Standard DIN rail (35mm) |
Where It Pulls Its Weight
You’ll find these in the guts of automotive assembly lines where weld spatter fries lesser power supplies. Food processing plants rely on them near high-pressure washdown zones – the sealed housing shrugs off moisture that’d cripple generic units. One brewery tech mentioned how it handled voltage spikes from their 500L mash tuns without a hiccup. It’s not for lab-grade precision work, but for gritty industrial environments? Absolutely dependable.
Procurement Perks You’ll Appreciate
Look, nobody budgets for emergency replacements. But here’s why maintenance managers keep this in stock: The 365-day warranty actually covers real-world voltage surges (unlike some brands’ fine-print exclusions). Since it snaps into existing M340 racks, you’re not locked into proprietary ecosystems. And from what I’ve seen, the 50% upfront payment model works smoothly – we ship in-stock units within a week via your choice of FedEx/UPS/DHL. Full payment only happens when it’s in your hands.
Installation & Care Made Simple
Mount it on standard 35mm DIN rail with 5mm clearance on both sides – no fancy brackets needed. Avoid cramming it next to high-heat drives; ventilation matters more than you’d think in summer. For maintenance? Wipe dust monthly (compressed air works), check terminal torque quarterly, and grab firmware updates when Schneider pushes them – though in most cases, these run for years without needing tweaks. One caveat: Always power down before swapping modules if you’re not using the hot-swap kit.
Certified for Real-World Demands
Carries CE, UL 61010-1, and RoHS compliance – no customs headaches at ports. The 365-day warranty covers defects but not lightning strikes (fair enough). What matters is Schneider’s service network; if it fails, their local techs usually diagnose replacements faster than smaller brands. Seems to be the reason plants stick with them through multiple upgrades.
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