SIEMENS 6EP1334-1LB00 PSU100L Power Supply | Replacement, Equivalent & Selection Guide
The SIEMENS 6EP1334-1LB00 is a SITOP PSU100L series stabilized power supply designed for industrial automation systems. It delivers a regulated 24 VDC / 10 A output from a wide-range AC input, making it a reliable choice for SIMATIC S7 PLCs, distributed I/O, and general control-panel applications. This page provides full technical specifications, compatible replacement models, application guidance, and sourcing information to help engineers and procurement teams make confident decisions.
Technical Specifications
- Manufacturer: Siemens AG
- Part Number: 6EP1334-1LB00
- Series: SITOP PSU100L
- Input Voltage: 120 / 230 VAC (wide-range, auto-select)
- Input Frequency: 50 / 60 Hz
- Output Voltage: 24 VDC (adjustable 22.8 – 26.4 V)
- Output Current: 10 A
- Output Power: 240 W
- Efficiency: ≥ 89%
- Ripple & Noise: ≤ 150 mV (peak-to-peak)
- Protection: Overload, short-circuit, overvoltage
- Mounting: DIN rail (35 mm)
- Dimensions (W × H × D): 55 × 125 × 125 mm
- Weight: approx. 0.8 kg
- Operating Temperature: 0 °C to +60 °C
- Storage Temperature: −40 °C to +85 °C
- Degree of Protection: IP20
- Certifications: CE, UL, cUL, ATEX (Zone 2)
- MTBF: > 500,000 h
Compatible Replacement & Equivalent Models
The following models are commonly evaluated as drop-in or functional replacements for the 6EP1334-1LB00. Always verify electrical and mechanical compatibility before substitution.
- SIEMENS 6EP1334-2BA20 – SITOP PSU200M 24 VDC / 10 A; enhanced diagnostics, same DIN-rail footprint
- SIEMENS 6EP1334-3BA10 – SITOP PSU300S 24 VDC / 10 A; redundancy-capable variant
- PHOENIX CONTACT QUINT-PS/1AC/24DC/10 – 24 VDC / 10 A; SFB technology, direct functional equivalent
- PHOENIX CONTACT STEP-PS/1AC/24DC/10 – Economy-class equivalent; suitable for non-critical loads
- PULS QS10.241 – 24 VDC / 10 A; compact DIN-rail PSU with high efficiency
- MEAN WELL SDR-240-24 – 24 VDC / 10 A DIN-rail; cost-effective alternative for standard applications
- OMRON S8VK-C24024 – 24 VDC / 10 A; suitable for OMRON-centric panels requiring cross-brand replacement
Note: Konmask.com recommends using original Siemens parts for safety-critical or certified installations. Contact us for compatibility verification.
Why Choose the Original Model
- Guaranteed compatibility with SIMATIC S7-300, S7-400, S7-1200, S7-1500, and ET 200 distributed I/O
- Certified performance under CE, UL, and ATEX Zone 2 for hazardous-area installations
- Long service life with MTBF > 500,000 h and Siemens global support
- Stable 24 VDC output with tight regulation, critical for sensor and fieldbus reliability
- Proven in harsh environments: wide temperature range, vibration-resistant DIN-rail mounting
Typical Applications
- SIMATIC S7 PLC rack power supply (S7-300 / S7-400 / S7-1200 / S7-1500)
- ET 200 distributed I/O station power
- Industrial control panels and MCC cabinets
- 24 VDC sensor and actuator bus power
- PROFIBUS / PROFINET network infrastructure power
- Conveyor, packaging, and process automation lines
- Building automation and HVAC control systems
System Compatibility
- PLC Platforms: SIMATIC S7-300, S7-400, S7-1200, S7-1500, WinAC
- I/O Systems: ET 200M, ET 200S, ET 200SP, ET 200pro
- HMI: SIMATIC HMI TP / KP / MP series (24 VDC powered)
- Fieldbus: PROFIBUS DP, PROFINET IO, AS-Interface
- Drive Systems: SINAMICS G120, S120 (auxiliary 24 VDC supply)
- Safety Systems: SIMATIC Safety (F-CPU) auxiliary power
Selection Guide
Use the criteria below to confirm the 6EP1334-1LB00 is the right choice, or to identify a suitable alternative:
- Required output current ≤ 10 A? → 6EP1334-1LB00 is a direct fit. For > 10 A loads, consider 6EP1336-3BA10 (20 A) or parallel redundant configuration.
- Single-phase AC input (120/230 V)? → Confirmed compatible. For three-phase input, select SITOP PSU300S series.
- ATEX Zone 2 required? → 6EP1334-1LB00 is ATEX-certified. Verify Zone 1 requirements separately.
- Redundancy needed? → Pair with SITOP redundancy module 6EP1961-2BA11 or upgrade to PSU300S.
- Budget-sensitive non-critical application? → MEAN WELL SDR-240-24 or PHOENIX CONTACT STEP-PS series offer cost savings.
- Replacement for failed unit? → Confirm existing wiring is 24 VDC / 10 A rated; 6EP1334-1LB00 is a direct swap for same-series units.
Quality Assurance & Sourcing
- All units sourced from authorized Siemens distribution channels or verified surplus with full traceability
- Each unit inspected for original labeling, date codes, and packaging integrity before shipment
- Counterfeit-prevention: serial numbers verified against Siemens product authentication database where applicable
- Warranty: 12 months from date of shipment (DOA replacement within 7 days)
- Export compliance: HTS / HS code classification available on request; ECCN EAR99
How to Order
- Part Number: 6EP1334-1LB00
- Minimum Order Quantity: 1 unit
- Lead Time: In-stock orders ship within 1–3 business days; contact us for bulk lead times
- Payment: T/T, PayPal, credit card, and trade-credit terms available for qualified accounts
- Shipping: DHL / FedEx / UPS express worldwide; sea freight available for large orders
- Request a Quote: Email support@konmask.com or call +0086 19859288691
- Online Order: Add to cart directly on this page or contact us for custom configurations
Replacement & Compatibility FAQ
Q: Can I replace a 6EP1334-1LB00 with a 6EP1334-2BA20?
A: Yes, the 6EP1334-2BA20 (PSU200M) is a functional upgrade with the same 24 VDC / 10 A output and DIN-rail mounting. It adds enhanced diagnostics and signaling contacts.
Q: Is the 6EP1334-1LB00 compatible with SIMATIC S7-1500?
A: Yes. The S7-1500 CPU and its I/O modules operate on 24 VDC; the 6EP1334-1LB00 provides a stable, regulated supply suitable for the entire rack.
Q: Can I use a PHOENIX CONTACT QUINT 10 A as a direct replacement?
A: Electrically yes (same 24 VDC / 10 A output, DIN-rail mount). Mechanically verify width clearance in the panel. No firmware or configuration changes are required.
Q: What happens if the load exceeds 10 A?
A: The PSU100L enters current-limiting mode and may shut down to protect the output. Size your supply with a 20–30% headroom margin; consider the 20 A variant for higher loads.
Q: Do you supply original Siemens units or compatible alternatives?
A: Konmask.com primarily supplies original Siemens units. Compatible alternatives are available on request — please specify your requirement when ordering.
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