SIEMENS POWER SUPPLY 6EP1931-2DC31

SIEMENS POWER SUPPLY 6EP1931-2DC31 About

SIEMENS POWER SUPPLY 6EP1931-2DC31 is a new, reliable, and efficient power source designed for industrial applications. With a voltage of 24 Volt (V), this black power supply operates on electric power mode, providing a standard size that fits seamlessly into various industrial setups. Backed by a 1-year warranty, this power supply ensures consistent performance and longevity, making it a valuable asset for industrial operations. 

General Information

• Product Type: SITOP DC UPS Module

• Model: 6EP1931-2DC31

• Input Voltage: 24 V DC (range 22 29 V)

• Input Current: 6 A (typ. +0.6 A with empty battery)

• Output Voltage: 24 V DC

• Output Current: 0 6 A (peak 6.3 A)

• Startup Delay: 1 s

• Output Voltage Rise Time: 60 ms

• Buffered Mode Voltage: 19 28.5 V DC

• Energy Storage: Battery (dependent on connected battery & load)

• Adjustable Buffer Voltage: 22 25.5 V (preset 22.5 V)

Efficiency / Power

• Efficiency: 95% (rated), 94.5% (battery operation)

• Power Loss: 7 W (rated), 8 W (battery operation)

• Supplied Active Power: 144 W

Protection / Monitoring

• Reverse Polarity Protection: Yes (input & battery)

• Short-Circuit Proof: Yes

• Charging Current: 0.2 0.4 A

• LED Indicators:

  • Normal Operation: Green LED (OK)

  • Buffered Mode: Yellow LED (Bat)

  • Battery Low / Replacement: Red LED (flashing)

  • Energy >85%: Green LED (Bat >85%)

• Floating Contacts: OK, Alarm, Bat > 85% (DC 60 V/1 A, AC 30 V/1 A)

Interfaces

• PC Interface: Yes

• Communication Function: No

• Interface Type: Serial

Safety / Standards

• Protection Class: III

• IP Rating: IP20

• Galvanic Isolation: No (input/output)

• Standards:

  • EN 55022 Class B (emission)

  • EN 61000-6-2 (immunity)

• Approvals: CE, UL (cULus-Listed), EAC

• Marine / Shipbuilding: ABS, DNV

Environmental Data

• Ambient Temperature (Operation): -25 +60 C (natural convection)

• Transport / Storage: -40 +85 C

• Humidity: 5 95%, no condensation

• Environmental Category: IEC 60721, Climate class 3K3

Connections

• Input (24 V DC): 2 screw terminals, 1 4 mm

• Output (24 V DC): 4 screw terminals, 1 4 mm

• Battery Module (24 V DC): 2 screw terminals, 1 4 mm

• Control / Status Terminals: 10 screw terminals, 0.5 2.5 mm

Mechanical Data

• Dimensions (W H D): 50 125 125 mm

• Installation (W H): 50 225 mm

• Required Spacing: Top 50 mm, Bottom 50 mm, Left/Right 0 mm

• Mounting: DIN rail EN 60715 35x7.5/15

• Weight: 0.45 kg 

Technical Details