Siemens SIPLUS S7-1500 PM1507 24VDC 3A 72W Load Power Supply

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Product Specifications

Brand: Siemens
Part Number: 6AG1332-4BA00-7AA0
Type: Single-Phase PLC Load Power Supply
Series: SIPLUS S7-1500 PM1507
Rated Power: 72 W
Output Voltage: 24 V DC
Output Current: 3 A
Input Voltage: 120/230 V AC (auto-ranging, 85-264 V)
Efficiency: 87%
Operating Temperature: -40 to +70 °C
Protection Degree: IP20
Mounting: S7-1500 Mounting Rail
Certifications: CE, UKCA, SELV (EN 60950-1, EN 50178, EN 61131-2)

Product Description

The Siemens SIPLUS S7-1500 PM1507 6AG1332-4BA00-7AA0 is a dedicated 24VDC 3A load power supply for SIMATIC S7-1500 PLC systems operating in harsh industrial environments. Based on the standard 6EP1332-4BA00 with conformal coating, it delivers 72W of clean DC power for the S7-1500 backplane bus and connected I/O modules — with full environmental hardening against corrosive gases, condensation, frost, salt mist, sand, dust, and biological contaminants.

Key Features

SIPLUS extreme conformal coating (IPC-CC-830A Class A, EN 61086 Class 2) protects against H2S, Cl2, NH3, 100% RH condensation, frost, salt mist (EN 60068-2-52 severity 3), sand, dust, and biological contaminants (mold, fungi)
Wide operating temperature: -40 to +70 °C (storage/transport -40 to +85 °C)
Auto-ranging input: 85-132 V AC / 176-264 V AC at 45-65 Hz
Stabilized 24VDC output with tight ±1% static regulation and <50 mVpp ripple
Electronic short-circuit protection with automatic restart — 70 ms overload capability at 12 A
Overvoltage protection clamps output below 28.8 V
Mounts directly on S7-1500 mounting rail without requiring a separate DIN rail adapter
SELV galvanic isolation per EN 60950-1, EN 50178, and EN 61131-2
EN 55022 Class B EMI compliance
1.6 million hours MTBF at 40 °C for high-reliability applications
Up to 6,000 m installation altitude with derating

Technical Data

Parameter	Value
Rated Power	72 W
Output Voltage	24 V DC (stabilized, isolated)
Output Current	3 A (0-3 A range)
Input Voltage (AC)	85-132 V / 176-264 V (auto-ranging, 45-65 Hz)
Input Current (120V/230V)	1.4 A / 0.8 A
Efficiency	87%
Power Loss (typ.)	11 W
Residual Ripple	< 50 mVpp
Short-Circuit Current	~12 A (70 ms)
Mains Buffering	> 20 ms (at 93/187 V)
Operating Temperature	-40 to +70 °C (horizontal, natural convection)
Max Installation Altitude	6,000 m (derating above 2,000 m: -7.5%/1000 m)
Protection Degree	IP20
Protection Class	I
Dimensions (W x H x D)	50 x 147 x 129 mm
Weight	0.45 kg
MTBF (at 40 °C)	1,611,993 hours
Base Model	6EP1332-4BA00
Standards	EN 60950-1, EN 50178, EN 61131-2, EN 55022 Class B

Applications

This load power supply is purpose-built for SIMATIC S7-1500 PLC installations in harsh industrial environments — chemical processing plants with corrosive gas exposure, offshore oil and gas platforms subject to salt mist and condensation, mining operations with dust and temperature extremes, and outdoor container-based automation systems. The S7-1500 rail mounting integrates seamlessly with the PLC rack without consuming DIN rail space, while the 72W rating supports the CPU, communication processors, and a full complement of standard I/O modules. The 1.6M hour MTBF ensures reliability in critical process control applications where unplanned downtime is unacceptable.