Siemens 6EP4437-8XB00-0CY0 Power Supplies
The Siemens 6EP4437-8XB00-0CY0 Power Supplies delivers 40 A rated output, 960 W power, and four monitored outputs for industrial automation systems. It supports relay-based “device OK” signaling, enables PROFINET diagnostics through the PSU8600, and includes IP20 protection with plug-in screw terminals. The device features a compact 60 × 125 × 150 mm enclosure and DIN rail fastening, aligning with the Siemens brand and the Siemens Power Supplies category within the SITOP Series, with storage and transport tolerance from −40 to +85 °C.
| Brand | Siemens |
| Product Type | Power Supplies |
| Model Number | 6EP4437-8XB00-0CY0 |
Siemens 6EP4437-8XB00-0CY0 Power Supplies – Technical Specifications
| Specification | Value |
|---|---|
| number of outputs | 4 |
| type of signal at output | Relay contact (changeover contact, contact current capacity DC 60 V/0.3 A) for "Operating state OK" at power supply unit PSU8600 |
| rated value | 40 A |
| rated range | 0 ... 40 A; No increase in the maximum output power of the overall system SITOP PSU8600 via the expansion module SITOP CNX8600 possible |
| supplied active power typical | 960 W |
| design of the interface | Ethernet/PROFINET via power supply unit PSU8600 |
| protection class IP | IP20 |
| during transport | 40 ... +85 °C |
| during storage | 40 ... +85 °C |
| type of electrical connection | Plug-in terminals with screwed connection |
| width × height × depth of the enclosure | 60 × 125 × 150 mm |
| installation width × mounting height | 60 mm × 225 mm |
| Top | 50 mm |
| Bottom | 50 mm |
| Left | 0 mm |
| Right | 0 mm |
| fastening method | Snaps onto DIN rail EN 60715 35x15 |
| net weight | 1.15 kg |
The Siemens 6EP4437-8XB00-0CY0 Power Supplies offers dependable performance with a 40 A output range, 960 W active power, four selectable outputs, and relay-based monitoring. This Siemens unit belongs to the SITOP Series and supports industrial automation panels requiring stable 24 V DC power distribution. It features IP20 protection, screw-terminal connections, and PROFINET-enabled diagnostics via the PSU8600, helping engineers maintain consistent electrical behavior in multi-load environments.
In real-world use, the Siemens 6EP4437-8XB00-0CY0 Power Supplies is applied across conveyors, packaging equipment, automated assembly stations, and complex manufacturing systems requiring uninterrupted DC voltage. The device’s four outputs enable structured load distribution, while the integrated “device OK” relay simplifies system diagnostics. Its compact enclosure, DIN rail mounting, and safe electrical design make it suitable for installations where continuous, stable operation is crucial for preventing production downtime.
The Siemens 6EP4437-8XB00-0CY0 Power Supplies integrates 40 A output, 960 W power capacity, and four individually monitored outputs to support long-term industrial operation. As part of the SITOP Series from Siemens, it ensures predictable voltage regulation, reliable protection, and compatibility with PROFINET-based monitoring architectures. These characteristics reinforce its suitability for demanding automation environments where stable, safe, and consistent DC power is essential for production reliability and equipment longevity.
