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Product Specifications

Brand: Siemens
Part Number: 6AG1331-6SB00-7AY0
Type: Single-Phase Switching Power Supply
Series: SIPLUS LOGO!Power
Rated Power: 31.2 W
Output Voltage: 24 V DC (adjustable 22.2-26.4 V)
Output Current: 1.3 A
Input Voltage: 85-264 V AC / 110-300 V DC
Efficiency: 86%
Operating Temperature: -40 to +70 °C
Protection Degree: IP20
Mounting: DIN Rail
Certifications: CE, SELV (EN 60950-1, EN 50178)

Product Description

The Siemens SIPLUS LOGO!Power 6AG1331-6SB00-7AY0 is a stabilized 24VDC 1.3A switching power supply purpose-built for harsh industrial environments. Based on the standard 6EP3331-6SB00-0AY0 with added conformal coating, it delivers 31.2W of clean DC power for small automation controllers, sensors, and distributed I/O in applications where standard power supplies would fail — chemical plants, outdoor cabinets, cold storage, and offshore installations.

Key Features

SIPLUS extreme conformal coating protects against H2S, Cl2, NH3 corrosive gases, 100% RH condensation, frost, and salt mist
Wide operating temperature range: -40 to +70 °C (cold start from -25 °C)
Wide-range input: 85-264 V AC or 110-300 V DC for global single-phase mains compatibility
Stabilized 24VDC output with ±3% total tolerance and <200 mVpp residual ripple
Dual outputs for flexible load distribution in compact control panels
Compact 36 mm wide DIN rail housing — the narrowest in the SIPLUS power supply range
Protection Class II with SELV galvanic isolation per EN 60950-1 and EN 50178
EN 55022 Class B EMI compliance for residential and industrial environments
Up to 6,000 m installation altitude with derating

Technical Data

Parameter	Value
Rated Power	31.2 W
Output Voltage	24 V DC (adjustable 22.2-26.4 V)
Output Current	1.3 A
Number of Outputs	2
Input Voltage (AC)	85-264 V (nominal 100-240 V)
Input Voltage (DC)	110-300 V
Efficiency	86%
Residual Ripple	< 200 mVpp
Operating Temperature	-40 to +70 °C (cold start from -25 °C)
Max Installation Altitude	6,000 m (with derating)
Protection Degree	IP20
Protection Class	II
Dimensions (W x H x D)	36 x 90 x 53 mm
Weight	0.14 kg
Base Model	6EP3331-6SB00-0AY0
Standards	EN 60950-1, EN 50178, EN 55022 Class B

Applications

This compact power supply is purpose-built for small-scale industrial automation in harsh environments — outdoor telemetry cabinets, remote I/O stations, cold storage monitoring, chemical plant sensor networks, and offshore platform auxiliary systems. The conformal coating and -40 to +70 °C range ensure reliable operation where condensation, corrosive atmospheres, and temperature extremes preclude standard commercial power supplies. The 36 mm DIN rail width minimizes panel footprint in space-constrained installations.