Siemens 6EP4437-8XB00-0CY0 SITOP CNX8600 4x10A Expansion Module 24V DC 40A Power Supply

The Siemens 6EP4437-8XB00-0CY0 is a SITOP CNX8600 output expansion module that adds four isolated 24V DC outputs to a PSU8600 power supply system, each output rated 10A for a combined 40A output current at 97% efficiency. Outputs meet NEC-aligned current limits and connect through plug-in screw terminals on a DIN-rail-mounted 60 x 125 x 150 mm enclosure.

Technical Specifications

Certifications & Standards

• CE
• EAC
• SEMI F47
• CB
• ABS
• DNV
• EPD

Selection Notes

The four 10A outputs suit machines with fewer, higher-current 24V DC branches - servo drive logic supplies, larger valve manifolds, motor brake circuits - where a single circuit can draw up to 10A; pick the higher-channel-count CNX8600 variant instead when a machine needs many separate low-current branches rather than fewer high-current ones. Each output still has its own adjustable 0.5-10A overload threshold and short-circuit cut-off, so a fault on one 10A branch does not affect the other three or the PSU8600 base unit. At 60 x 125 x 150 mm the module is narrower than the 8-output version, which matters in cabinets where DIN-rail space is tight.

Applications

Fits control panels that need a small number of higher-current 24V DC branches from a shared PSU8600 supply - for example splitting power between a drive's control electronics and a bank of larger contactors without oversizing the whole system to the highest single load.