SIEMENS 6EP1334-3BA00 – SITOP smart 24 V/10 A DIN‑rail Power Supply for Reliable Panel Power

If you’re building or refreshing a control panel and need a dependable 24 V DC source, the SIEMENS 6EP1334-3BA00 (SITOP smart series) is a practical choice. It’s a compact, single‑phase switched‑mode power supply designed for continuous 24 V DC service at 10 A. One thing I appreciate is its balance of footprint, efficiency, and overload capability—exactly what most machine builders and system integrators need for PLCs, I/O slices, HMIs, valves, and relays.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week when in stock; no more than 1 month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• 24 V DC, 10 A rated output – Stable power for PLC racks, motion controllers, solenoids, and safety relays.
• Wide‑range input – Typically supports 120/230 VAC, 50/60 Hz; suitable for global panels without redesign.
• Adjustable output – 24 V nominal with trim (commonly ~22.5–28.8 V) to compensate voltage drops on long runs.
• Overload handling – In many cases, SITOP smart delivers short‑term power reserve for inrush loads (e.g., contactors).
• Compact DIN‑rail housing – Frees cabinet space; easy to wire with clearly marked terminals and status LED.
• High efficiency – Typically around 90% class; keeps heat down and reduces cabinet cooling effort.
• Built‑in protections – Short‑circuit, overload and over‑temperature protection to protect downstream devices.

Technical Specifications

Application Fields

From my experience, this model fits best where stable 24 V DC is the backbone: discrete manufacturing lines, packaging machinery, building automation panels, and process skids. You might notice that its 10 A rating comfortably covers:

• PLC systems and I/O cards (S7‑1200/1500 scale panels, third‑party PLCs)
• HMI terminals, industrial gateways, barcode readers and light stacks
• 24 V actuators, pneumatic valves, contactors and safety relays
• Small motion axes, encoders and sensors with moderate inrush

A packaging OEM told us they swapped to this unit during a panel refresh and typically shaved a few centimeters off cabinet width without any thermal surprises.

Advantages & Value

• Reliability – SITOP smart is known for predictable behavior under load and clean 24 V DC, which reduces nuisance trips.
• Compatibility – Plays nicely with Siemens PLCs and most third‑party devices; DC output adjust helps fine‑tune at the terminals.
• Cabinet Efficiency – Good efficiency and a compact footprint usually translate into easier thermal management.
• Lifecycle Support – Availability of Siemens spares and easy swap‑outs keep downtime short in most cases.
• Add‑ons when needed – Can be paired with SITOP redundancy, buffer/UPS, or selectivity modules for higher availability.

Installation & Maintenance

• Mounting – DIN rail (EN 60715). Install vertically; allow ventilation space above and below (typically ≥50 mm).
• Wiring – Use appropriately sized copper conductors; torque terminals per Siemens guidance; earth PE reliably.
• Environment – Keep within the specified temperature range; avoid dust buildup and high humidity; IP20 only (cabinet use).
• Protection Coordination – Coordinate upstream MCB/fuse; consider 24 V selectivity modules for branch protection.
• Routine care – Periodic dust cleaning, check terminal tightness, verify output setpoint; firmware not applicable on this unit.
• Redundancy/Backup – For critical loads, add SITOP redundancy and buffering (UPS) to ride through sags or short outages.

Quality & Certifications

Typically CE marked and UL/cUL listed for industrial control equipment; RoHS compliant. Siemens provides a manufacturer’s warranty, and we support a 365‑day warranty on supply from our side. If you need a specific certificate set (UL file, EU DoC), we can share it with the offer.