6EP1336-1LB00 SITOP PSU100L Power Supply (Industrial-Grade 24V DC Solution)

The Siemens 6EP1336-1LB00 represents a professional-grade 24V DC power solution engineered for continuous industrial operation. This SITOP PSU100L series unit delivers 20 amperes of stabilized output power, addressing the critical need for voltage consistency in automated manufacturing, process control infrastructure, and mission-critical facility systems.

Designed for system integrators and plant engineers managing complex automation networks, this power supply eliminates voltage fluctuation issues that cause PLC malfunctions, sensor drift, and unexpected production stoppages. Its advanced switch-mode architecture maintains tight regulation even under dynamic load conditions.

Key advantages include wide-range AC input acceptance (100-240V), extended temperature operation (-25°C to +70°C), and built-in protection circuits that prevent damage from overload, short-circuit, and overvoltage events—reducing maintenance calls and extending equipment lifespan.

Core Features & Industrial Benefits

→ Universal Input Compatibility: Accepts 100-240V AC ±10% at 50/60 Hz, eliminating the need for voltage-specific units across global facilities and simplifying spare parts inventory management.

→ High-Efficiency Operation: Achieves >91% efficiency at nominal load, reducing heat generation in control cabinets and lowering cooling requirements—cutting energy costs by up to 15% compared to linear supplies.

→ Compact DIN Rail Design: 125mm width fits standard 35mm DIN rails with tool-free snap mounting, saving 40% panel space versus traditional transformer-based systems in dense control enclosures.

→ Extended Environmental Range: Operates reliably from -25°C to +70°C ambient temperature, supporting outdoor enclosures, unheated warehouses, and high-temperature process areas without derating.

✓ Parallel Redundancy Ready: MOSFET-based active ORing enables N+1 redundant configurations without external diode modules, ensuring zero downtime for critical 24/7 operations.

✓ Comprehensive Protection Suite: Electronic overload shutdown, short-circuit current limiting, and 150% overvoltage protection with automatic recovery safeguard connected equipment and prevent cascading failures.

Typical Application Scenarios

Automotive Assembly Lines:
In robotic welding and painting stations, the 6EP1336-1LB00 powers distributed I/O modules, safety relays, and pneumatic valve manifolds. The tight ±3% voltage regulation prevents position errors in servo systems, while the 20A capacity supports up to 15 I/O racks per supply—reducing wiring complexity and installation costs by 30%.

Water Treatment Facilities:
SCADA systems monitoring pump stations and chemical dosing equipment require uninterrupted 24V DC for level sensors, flow meters, and actuator controls. This power supply's -25°C cold-start capability ensures reliable operation in outdoor pump houses during winter months, while overvoltage protection guards against lightning-induced surges common in remote installations.

Pharmaceutical Packaging Lines:
Clean room environments demand compact, low-EMI power solutions for vision systems, barcode scanners, and serialization equipment. The PSU100L's IP20 housing and CE certification meet regulatory requirements, while its 480W output consolidates multiple smaller supplies into a single unit—simplifying validation documentation.

Building HVAC Control:
Commercial building automation networks use 24V DC for VAV controllers, damper actuators, and occupancy sensors across multiple floors. The wide input range accommodates varying utility voltages, and the DIN rail format integrates seamlessly with existing electrical distribution panels—reducing retrofit installation time by 50%.

Oil & Gas Wellhead Monitoring:
Remote telemetry units (RTUs) in hazardous locations require certified power supplies with robust protection. The 6EP1336-1LB00's UL/cUL/GL/DNV certifications satisfy safety standards for Class I Division 2 areas, while its thermal monitoring prevents shutdown during high ambient temperature swings in desert climates.

Technical Parameters & Selection Guide

Selection Criteria: Calculate total current draw of all connected 24V devices and add 20% safety margin. For loads exceeding 16A continuous, select this 20A model. If redundancy is required, use two units in parallel configuration. For applications with frequent inrush currents (motor starters, solenoid banks), verify the 150% overload capacity meets peak demand.

Extended Functions & Integration

Parallel Operation: Connect up to four units in parallel for combined 80A output capacity or N+1 redundancy. The integrated MOSFET ORing circuit automatically balances load distribution without manual adjustment.

Remote Monitoring: Optional SITOP PSE200U monitoring module (sold separately) provides Ethernet/PROFINET connectivity for real-time voltage, current, and temperature data—enabling predictive maintenance through SCADA integration.

Customization Options: Available with conformal coating for high-humidity environments, extended temperature variants (-40°C to +70°C), and DC input versions (110-300V DC) for battery-backed systems and railway applications.

Delivery Timeline & Service Guarantee

Standard Lead Time: 3-5 business days for in-stock units; 2-3 weeks for factory-sealed bulk orders (10+ units).

Warranty Coverage: 12-month manufacturer warranty covering material defects and workmanship failures. Extended 36-month warranty available for OEM integrators.

Technical Support: Application engineering assistance for system sizing, wiring diagrams, and troubleshooting. Phone and email support available Monday-Friday, 8 AM - 6 PM CST.

Documentation Included: Installation manual, wiring schematics, CE/UL certificates, and MTBF reliability data (>500,000 hours at 40°C).

Frequently Asked Questions

What wire gauge should I use for 20A output connections?
Use 14 AWG (2.5mm²) copper wire minimum for output terminals to handle 20A continuous current. The push-in spring terminals accept 0.5-4mm² wire ranges without ferrules, though ferrules are recommended for stranded wire to prevent strand breakage.

Can this power supply operate in parallel with different SITOP models?
Yes, the 6EP1336-1LB00 can parallel with other SITOP PSU100L series units (10A, 20A, 40A models) that feature MOSFET ORing. Do not mix with older SITOP Power series lacking active ORing—use external diode modules instead.

How much energy savings can I expect versus linear power supplies?
At full 20A load, this switch-mode supply dissipates approximately 45W as heat (91% efficiency) compared to 150W+ for equivalent linear supplies—reducing cooling costs by 70% and enabling higher-density panel layouts without forced ventilation.

Does the unit require external fusing or circuit protection?
Install a 10A slow-blow fuse or circuit breaker on the AC input side per NEC/IEC requirements. The output has built-in electronic current limiting, but adding a 25A fuse on the DC output protects downstream wiring from short-circuit damage.

Is this power supply compatible with Siemens S7-1500 PLC systems?
Absolutely. The 6EP1336-1LB00 is specifically designed to power SIMATIC S7-1200/1500 controllers, ET200 distributed I/O, and HMI panels. The tight voltage regulation ensures stable PLC operation even during high-speed I/O switching that causes voltage dips with inferior supplies.

What is the typical lifespan in continuous 24/7 operation?
MTBF (Mean Time Between Failures) exceeds 500,000 hours at 40°C ambient temperature. In practice, expect 10-15 years of maintenance-free operation in typical industrial environments with proper ventilation and periodic dust removal.

Get Your Industrial Power Solution Today

Ready to eliminate voltage instability issues in your automation system? Contact our technical sales team for application-specific sizing, volume pricing, and integration support. We provide same-day quotes and can expedite delivery for urgent project requirements.

Request a quote: Email sale@ninermas.com or call +0086 187 5021 5667 to speak with a power supply specialist.

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