Overview
The Siemens 6EP1935-6MD31 is a sealed lead-acid battery module (BLEI-AKKU-MODUL) designed for integration with SITOP DC-UPS systems. This unit maintains critical equipment during AC power loss, enabling safe device shutdown, data logging, and communication continuity in industrial automation, control systems, and production environments.
Key Features
- Sealed construction — maintenance-free operation with no electrolyte spillage
- Short-circuit and overcurrent protection — solid-state fuse (15A/32V) protects against fault conditions
- Pre-wired assembly — spring-clamp terminals for quick installation
- Parallel-connectable — multiple modules can be linked for extended hold times
- Wide temperature range — rated for -40°C to +60°C ambient operation
- DIN rail mountable — standard 35mm x 15mm rail (35×15) or wall-mount compatible
Technical Specifications
- Output Voltage: 24 VDC nominal
- Battery Capacity: 2.5 Ah
- Peak Discharge: 16A (4.3 minutes hold time)
- Rated Hold Times (typical): 1A/2h, 2A/1h, 3A/37.5min, 4A/27min, 6A/17.6min, 8A/12.5min, 10A/8.8min, 12A/6.8min, 14A/5.1min
- Operating Temperature: -40°C to +60°C
- Storage Temperature: -20°C to +70°C
- Protection: 15A/32V solid-state fuse + mechanical support
- Mounting: DIN rail (35×15) or wall-mount
- Dimensions: W 265mm × H 151mm × D 91mm
- Connection: Spring-force clamp terminals
Typical Applications
The Siemens 6EP1935-6MD31 bridges power outages in:
- Machine tool control systems and CNC machines
- Textile industry production equipment
- Assembly lines, bottling plants, and conveyor systems
- Wind turbine obstacle lighting and remote monitoring
- Industrial PCs requiring graceful shutdown
- Sensor networks and distributed control nodes
Compatibility & Replacements
The 6EP1935-6MD31 is designed for use with SITOP DC-UPS modules, including 6EP1931-2EC21 (15A module) and similar SITOP Power systems. Related battery modules include the 6EP1935-6MD11 (3.2Ah standard temp) and 6EP1935-6MF01 (12Ah). This module is not compatible with standard automotive or telecom battery systems. Verify SITOP UPS module part number before ordering. Pre-wired design ensures drop-in replacement for same-series installations.
