The Siemens 6EP4134-0GB00-0AY0 is a 12-cell, 7 Ah valve-regulated lead-acid (VRLA) battery module intended as the backup energy store for SITOP UPS systems. It delivers 7 A·h capacity at the rated voltage, sized to hold up a 24 VDC control bus through a short mains dropout or an orderly PLC shutdown sequence. The module is rated IP20, so it belongs inside a clean, dry enclosure — not on a washdown floor or outdoors. Mounting is via keyhole slots for M4 screws onto a flat panel surface; it does not snap onto a DIN rail or S7 rail.
The 7 Ah capacity is the 20-hour rate (C20) typical for VRLA cells. At 20 °C the module's expected service life is 4 years; at 30 °C it drops to 2 years, at 40 °C to 1 year, and at 50 °C to 0.5 years. This halving per 10 °C rise is standard for lead-acid chemistry — if the ambient in your panel runs above 30 °C, plan for more frequent replacement intervals. The recommended float voltage varies with temperature to prevent overcharge or undercharge: 28 V at 0 °C, 27.3 V at 20 °C, and 26.3 V at 50 °C. The UPS or charger must be capable of temperature-compensated charging to stay within these setpoints; a fixed-voltage supply will shorten battery life.
This module carries CE marking, cURus recognition to UL 1778 / CSA C22.2 No. 107.1 (File E219627), C-Tick (RCM) for Australia/New Zealand, and EAC for the Eurasian customs union. Shipbuilding approvals include ABS and DNV GL, making it suitable for marine and offshore applications where classification society certification is required.
Installation and Safety Notes
The module connects via screw terminals accepting 0.5 to 16 mm² wire for both +BAT and -BAT. Mounting height is 201 mm, installation width 186 mm, enclosure depth 110 mm — allow clearance above for terminal access and ventilation per VDE 0510 / EN 50272-2. Lead-acid batteries require adequate ventilation and a minimum 50 cm clearance from ignition sources. Storage temperature range is -20 to +40 °C; transport range -20 to +50 °C; operating range -15 to +50 °C.