Siemens Sitop Battery module for DC UPS module 6A, 15A, 40A Part number 6EP1935-6MF01

Product Overview

The Siemens 6EP1935-6MF01 is a SITOP battery module (24 V / 12 Ah) — a maintenance-free, sealed lead-acid battery pack intended for use with compatible SITOP DC UPS modules (6 A, 15 A or 40 A). It provides backup power in case of mains failure, ensuring uninterrupted DC output for control systems and automation equipment.

Key Features

• Sealed lead-acid battery module, 24 V / 12 Ah capacity
• Maintenance-free, rechargeable battery pack
• Provides up to 30 A output current in buffering mode (peak)
• Battery fuse (20 A / 32 V) for short-circuit protection included
• Wall-mountable enclosure, suitable for fixed installations
• Compatible with SITOP DC UPS modules (6 A, 15 A, 40 A)
• CE-marked, UL/cURus-recognized, EAC approved and ship-building approved (ABS & DNV)

Technical Specifications

• Article Number: 6EP1935-6MF01
• Product Family: SITOP DC UPS battery modules
• Battery Voltage (nominal): 24 V DC
• Battery Capacity: 12 Ah
• Maximum Output Current (buffering mode): 30 A
• Peak Current: 30 A
• Maximum Charging Current: 3 A
• Short-Circuit Protection: Battery fuse 20 A / 32 V (solid-state blade-type fused circuit)
• Connection Terminals: Spring-loaded / screw terminals for +BAT and –BAT (0.08 … 4 mm² conductors)
• Enclosure Dimensions (W × H × D): 253 mm × 168 mm × 121 mm
• Mounting: Wall-mount (keyhole mounting for M4 screws); DIN-rail mounting not applicable
• Net Weight (approx.): 9.0 kg
• Number of Cells: 12
• Ambient Operating Temperature: –15 °C … +50 °C
• Storage / Transport Temperature: –20 °C … +50 °C
• Relative Capacity Loss at 20 °C per Month (typical): ~3%
• Typical Service Life (at 20 °C to 80% capacity): ~4 years (service life decreases with higher ambient temperature)
  • At 30 °C: ~2 years
  • At 40 °C: ~1 year
  • At 50 °C: ~0.5 year
• Protection Class: Class III (battery protective class)
• Enclosure Protection (terminals connected): IP00

Compliance & Certifications

• CE-marked
• UL / cURus recognized (UL 1778, CSA C22.2 No. 107.1)
• EAC approval
• Ship-building approvals (e.g. ABS, DNV)
• Compliant with relevant battery and UPS standards for sealed lead-acid battery modules

Applications

This battery module is used to provide backup DC power in automation systems, control panels and DC-UPS setups. Typical applications include supporting PLCs, control systems, safety circuits, building automation, or any 24 V DC system requiring uninterrupted power during mains outages. It is particularly useful where a reliable, maintenance-free battery module is needed to ensure continuous operation and safe shutdown or bridging until main power returns.