Siemens 6EP3437-8SB00-0AY0 SITOP PSU8200 Stabilized Power Supply 24V/40A 960W

The Siemens 6EP3437-8SB00-0AY0 is a rugged 3-phase industrial power supply from the SITOP PSU8200 series, designed to deliver a stable and reliable 24V DC output at 40A for demanding factory automation systems, process control, and machine building. It converts a wide 400-500V AC input into a powerful 960W DC output with high efficiency up to 95%, ensuring low power loss and minimal heat generation in control cabinets. The unit features a robust metal enclosure with IP20 protection and is certified for global use with approvals including CE, UL, cULus, and ATEX. It includes an integrated "24V OK" signalling contact (NO relay, rated 60V DC/0.3A) for remote monitoring, and adjustable output voltage (24–28 V DC) to compensate for long cable runs. Its slim DIN rail design allows side‑by‑side mounting without clearance gaps, making it ideal for space‑optimized control panels.

Applications

• Powering PLCs, HMIs, industrial drives, sensors, and actuators in factory automation lines

• Process control systems, packaging machinery, material handling conveyors, and HVAC

• Manufacturing plants, automotive production, food & beverage, and pharmaceutical industries

• Uninterruptible power supply (UPS) integration for critical loads and safety circuits

Key Features

• 400‑500 V AC, 3‑phase wide‑range input (50/60 Hz) with global power compatibility

• 24 V DC stabilized output, adjustable 24–28 V; 40 A continuous current, 960 W output power

• High efficiency up to 95 % reduces energy loss and cabinet heat build‑up

• Power Boost: 3× rated current for 25 ms ensures protective devices trip reliably; 1.5× rated current for 5 s/min during short overloads

• Selectable overload response: constant current with automatic restart or latching shutdown

• Operating temperature range –25 °C to +70 °C (with derating); suitable for harsh industrial environments

• Slim, space‑saving metal housing (225 × 220 × 185 mm) for DIN rail mounting; no lateral clearance required

• Integrated "24 V OK" relay contact (NO, 60 V DC/0.3 A) for remote diagnostics and system health monitoring

• Comprehensive protection against overload and short‑circuit, with external 3‑pole MCB (10–16 A, C characteristic) recommended

• Certifications: CE, UL, cULus, CSA, CB, RCM, EAC, ATEX (GL, IECEx optional); RoHS and REACH compliant

• Country of origin: Romania

• Net weight: 3.30 kg, Dimensions: 225 mm × 220 mm × 185 mm (H×W×D)

• Shipping weight: approx. 4.20 kg, packaging: 225 × 220 × 185 mm

System Integration

• Compatible with SIMATIC PLCs (S7‑1200, S7‑1500, ET 200SP) and industrial networks, as part of the Siemens Totally Integrated Automation (TIA) ecosystem

• DIN rail mounting (TS‑35) for straightforward assembly in control cabinets

• Suitable for parallel operation with symmetrical load distribution to increase power or provide redundancy

• Works with optional SITOP redundancy, selectivity, buffer and DC‑UPS modules for high‑availability power architectures

Ordering & Support

• Genuine Siemens industrial component

• Secure online ordering

• International shipping available

• Technical support and compatibility assistance

PLC ERA is an independent industrial automation distributor. Products are sourced from established supply channels and inspected before shipment. International shipping available. Returns are accepted for defective or incorrect items in accordance with our Return & Refund Policy.