Product Overview
The Siemens 6EP1935-6MF01 SITOP Battery Module provides reliable 24 V DC backup power using service-free sealed lead-acid batteries. Designed for SITOP DC UPS modules (6 A, 15 A, and 40 A), this 12 AH module ensures uninterrupted operation during power fluctuations or outages. Its robust construction and advanced charging circuitry deliver long service life and minimal maintenance, making it a cost-effective solution for critical industrial automation systems.
Technical Specifications
Below are the key performance parameters of the Siemens 6EP1935-6MF01:
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Battery Type: Sealed lead-acid, service-free
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Rated Voltage: 24 V DC
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Capacity: 12 AH
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Permissible Charging Current, max: 3 A
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End-of-Charge Voltage (recommended): 27.8 V at 10 °C, 27.3 V at 20 °C, 26.8 V at 30 °C, 26.6 V at 40 °C, 26.3 V at 50 °C
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Short-circuit Protection: Battery fuse 20 A/32 V (solid-state circuitry blade-type fuse + support)
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Protection Class: Class III
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CE Mark: Yes
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UL/cUL (CSA) Approval: cURus-Recognized (UL 1778, CSA C22.2 No. 107.1), File E219627
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Degree of Protection (EN 60529): IP00
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Ambient Temperature Range (operation): -15 to +50 °C
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Service Life at 20 °C: Typical 4 years (capacity falls to 50%)
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Weight: Approx. 9 kg
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Enclosure Dimensions (W x H x D): 253 x 168 x 121 mm
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Connection Technology: Spring-loaded terminals
Industry Applications
The Siemens 6EP1935-6MF01 excels in applications requiring stable DC backup power. It is ideal for:
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Manufacturing Automation: Protects PLCs and drives from power interruptions, preventing costly production stoppages.
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Process Control Systems: Ensures continuous operation of DCS components in chemical or pharmaceutical plants.
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Telecom & Data Centers: Provides reliable backup for communication equipment and servers.
Installation Guide
Mount the Siemens 6EP1935-6MF01 on a flat surface using keyhole mounting for M4 screws. Ensure adequate ventilation as per VDE 0510 Part 2/EN 50272-2 regulations. Connect the power supply unit using screw terminals (0.08 to 4 mm²) for +BATT and -BATT. Verify the ambient temperature remains within -15 to +50 °C for optimal performance. The spring-loaded terminals simplify wiring and reduce installation time.
Maintenance & Reliability
The Siemens 6EP1935-6MF01 is designed for minimal upkeep. Its sealed lead-acid batteries are maintenance-free, but periodic voltage checks ensure maximum service life. At 20 °C, the battery typically lasts 4 years before capacity drops to 50% – a 20% longer lifespan compared to standard modules. For storage, keep the battery fully charged at 0 to +20 °C to preserve charge capacity. Regular inspection of the solid-state fuse (20 A/32 V) is recommended to ensure uninterrupted protection.
Selection Guide & Purchasing Advice
When selecting the Siemens 6EP1935-6MF01, confirm compatibility with your SITOP DC UPS module (6 A, 15 A, or 40 A). This module includes an accessories pack with solid-state circuitry fuses (20 A and 30 A). For long-term reliability, choose this model to reduce downtime and total cost of ownership. For genuine parts and expert support, purchase from PLC Source PRO (visit ubest101.myshopify.com).