SIEMENS 6EP1334-3BA10 Power Supply | Replacement, Equivalent & Selection Guide
The SIEMENS 6EP1334-3BA10 is a SITOP series stabilized power supply module designed for industrial control panels and automation systems. This page provides full technical specifications, compatible replacement models, application guidance, and a structured selection guide to help engineers and procurement teams make confident sourcing decisions.
Technical Specifications
- Manufacturer: Siemens AG
- Part Number: 6EP1334-3BA10
- Product Family: SITOP PSU100S
- Input Voltage: 120–230 V AC (wide-range input)
- Output Voltage: 24 V DC
- Output Current: 10 A
- Output Power: 240 W
- Efficiency: ≥ 89%
- Mounting: DIN rail (35 mm)
- Protection Class: IP20
- Operating Temperature: 0 °C to +60 °C
- Dimensions (W × H × D): 55 × 125 × 120 mm (approx.)
- Weight: 840 g
- Certifications: CE, UL, cUL, ATEX (Zone 2)
- MTBF: > 500,000 hours
Compatible Replacement & Equivalent Models
The following models are commonly evaluated as direct or functional replacements for the 6EP1334-3BA10. Always verify electrical parameters and mechanical fit before substitution.
- Siemens 6EP1334-2BA20 — SITOP PSU100S 10 A, previous generation; pin-compatible in most panel layouts
- Siemens 6EP1334-3BA00 — Earlier revision of the same series; functionally equivalent
- Phoenix Contact QUINT4-PS/1AC/24DC/10 — 24 V / 10 A DIN-rail PSU; widely accepted cross-brand equivalent
- Murr Elektronik 85073 — 24 V / 10 A EMPARRO series; compatible footprint and output spec
- PULS QS10.241 — 24 V / 10 A compact DIN-rail supply; high-efficiency alternative
- ABB CP-E 24/10.0 — 24 V / 10 A; suitable for non-SITOP-specific installations
Note: Third-party replacements may require firmware or parameter adjustments in downstream PLC/DCS systems. Consult your system integrator before substitution in safety-critical applications.
Why Choose the Original Model
- Seamless SIMATIC integration: Optimized for Siemens S7-300, S7-400, S7-1200, and S7-1500 PLC racks without additional configuration
- SITOP ecosystem compatibility: Works natively with SITOP UPS modules, buffer modules, and selectivity modules
- Proven reliability: MTBF > 500,000 hours; field-proven in harsh industrial environments
- Regulatory compliance: Pre-certified for CE, UL, ATEX Zone 2 — reduces panel certification burden
- Siemens TIA Portal diagnostics: Supports remote monitoring and predictive maintenance workflows
Typical Applications
- PLC control panel power distribution (Siemens SIMATIC S7 series)
- DCS marshalling cabinet auxiliary power supply
- Industrial HMI and operator panel power rails
- Motor control center (MCC) 24 V DC bus supply
- Conveyor and packaging line automation
- Building automation and HVAC control systems
- Oil & gas field junction boxes (ATEX Zone 2 rated)
System Compatibility
- Siemens SIMATIC S7-300 / S7-400: Direct power supply for CPU and I/O modules
- Siemens SIMATIC S7-1200 / S7-1500: Auxiliary 24 V DC rail supply
- Siemens ET 200SP / ET 200M: Distributed I/O station power
- PROFIBUS / PROFINET networks: Powers network switches and media converters on the same rail
- SITOP UPS1600: Compatible buffer module for uninterruptible power supply configurations
- Third-party PLCs (Allen-Bradley, Mitsubishi, Omron): Usable as a standalone 24 V DC source where SITOP-specific features are not required
Selection Guide
Use the following criteria to determine whether the 6EP1334-3BA10 is the right choice — or to identify a suitable alternative:
- Required output current ≤ 10 A: 6EP1334-3BA10 is a direct fit. For loads up to 20 A, consider 6EP1336-3BA10.
- Input voltage range: Wide-range AC input (120–230 V) covers most global installations. For 48 V DC input, select a different SITOP variant.
- DIN rail mounting required: 6EP1334-3BA10 is DIN 35 mm compatible. For panel-mount (screw-mount) installations, evaluate PSU300S series.
- ATEX Zone 2 required: This model is ATEX-certified. For Zone 1, a separate Ex-rated enclosure is required.
- Budget-sensitive projects: Phoenix Contact QUINT4 or PULS QS10 offer comparable specs at lower list price; verify warranty and lead time.
- Replacement for legacy 6EP1334-2BA20: The 3BA10 is the direct successor — drop-in replacement in most cases.
Quality Assurance & Sourcing
- All units sourced through authorized Siemens distribution channels or verified secondary market suppliers
- Each unit inspected for: original packaging integrity, holographic labels, firmware version, and functional test at 24 V / 10 A rated load
- Traceability documentation (CoC, test report) available upon request for MRO and EPC procurement
- Stock held in climate-controlled warehouse; ESD-safe handling throughout
- Lead time: In-stock items ship within 1–3 business days; ex-stock orders confirmed within 24 hours
How to Order
- Part Number: 6EP1334-3BA10
- Add to cart directly on this page for standard orders
- Bulk / project orders: Contact support@konmask.com for volume pricing and lead-time confirmation
- Phone / WhatsApp: +0086 19859288691
- RFQ response time: Within 4 business hours (Mon–Fri, GMT+8)
- Provide your quantity, delivery address, and required delivery date for fastest response
Replacement & Compatibility FAQ
Q: Is the 6EP1334-3BA10 a direct replacement for the 6EP1334-2BA20?
A: Yes. The 3BA10 is the current-generation successor to the 2BA20 with identical output ratings and the same DIN rail footprint. No wiring changes are required in most installations.
Q: Can I use a Phoenix Contact QUINT4 10 A as a drop-in replacement?
A: Electrically yes — both deliver 24 V / 10 A on a 35 mm DIN rail. However, SITOP-specific features (buffer module signaling, TIA Portal diagnostics) will not be available.
Q: Does the 6EP1334-3BA10 support redundant power configurations?
A: Yes, when paired with the Siemens SITOP redundancy module (e.g., 6EP1961-2BA11), two units can operate in parallel for N+1 redundancy.
Q: What is the warranty on units purchased from Konmask.com?
A: All units carry a minimum 12-month warranty. Extended warranty options are available for project-based procurement — contact us for details.
Q: Can this PSU power non-Siemens PLCs?
A: Yes. The 6EP1334-3BA10 is a standard 24 V DC / 10 A DIN-rail supply and can power any 24 V DC load within its rated capacity, regardless of PLC brand.
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