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Product Specifications

Brand: Siemens
Part Number: 6EP1321-1SH03
Type: Stabilized Power Supply
Series: LOGO!Power
Input Voltage: 100–240 V AC
Output Voltage: 12 V DC
Output Current: 1.9 A
Product Status: Discontinued (Spare Parts Only)

Product Description

The Siemens 6EP1321-1SH03 is a first-generation LOGO!Power 12 V DC power supply that has been discontinued since November 15, 2022. It remains available only as a spare part for existing installations that cannot be upgraded. For all new designs, Siemens specifies the 6EP3321-6SB00-0AY0 as the direct replacement.

Legacy Product — For Reference Only

Product Lifecycle PM500: discontinued, no longer manufactured, spare parts only
12 V DC at 1.9 A (23 W) from 100–240 V AC universal input
0.17 kg compact housing for DIN rail mounting
The successor 6EP3321-6SB00-0AY0 provides the same 12 V / 1.9 A output in an updated design

Technical Specifications

Parameter	Value
Input Voltage	100–240 V AC (also 110–300 V DC)
Output Voltage	12 V DC
Output Current	1.9 A
Output Power	23 W
Protection Class	IP20
Mounting	DIN Rail
Weight	0.17 kg
Lifecycle	PM500 — Discontinued (2022-11-15)
Successor	6EP3321-6SB00-0AY0

Replacement Guidance

If this unit is being sourced as a spare for an existing LOGO! 12 V system, the successor 6EP3321-6SB00-0AY0 is mechanically and electrically compatible. For new 12 V applications, also consider the SITOP PSU100C 6EP1322-5BA10 which provides 12 V at 6.5 A (78 W) for larger 12 V loads.