APC by Schneider Electric PX 250KW Static Switch Module 400/480V - SYSW250KD

APC by Schneider Electric SYSW250KD PX 250KW Static Switch Module

Overview

The APC by Schneider Electric SYSW250KD is a 250KW static switch module designed for large-scale power distribution environments running 400V or 480V infrastructure. It slots into APC's PX modular power architecture, providing an electronically controlled transfer path between power sources without mechanical relay delay — the defining advantage of a static switch in mission-critical data center and industrial deployments. At 25000 VA load capacity with dual Anderson output connections, the SYSW250KD is engineered for high-availability scenarios where even sub-cycle transfer times matter. Explore the full APC by Schneider Electric power lineup to see how this module fits into a broader resilience architecture.

Key Features

• 25000 VA Load Capacity: Handles up to 25 kVA of connected load per module. In a dense server row or industrial control environment, that headroom means you're not forced to parallelize modules prematurely — one SYSW250KD can carry a substantial rack complement before you need to add capacity.
• Dual Anderson Output Connections: Two Anderson-type connectors provide direct, high-current output terminations. Anderson connectors are a proven industrial standard for high-amperage applications — they lock positively, resist vibration loosening, and support fast field replacement without rewiring, which matters during a maintenance window in a live data center.
• 400V / 480V Dual-Voltage Support: Native support for both 400V (standard European/international three-phase) and 480V (North American industrial three-phase) means the SYSW250KD deploys across global facilities without requiring separate SKUs or transformer stages. If your campus runs mixed voltage standards across buildings, this single module covers both.
• UL and cUL Listed: UL and cUL listing confirms the module has passed independent safety evaluation for both US and Canadian markets. For facilities with AHJ (Authority Having Jurisdiction) sign-off requirements, UL listing is frequently a non-negotiable procurement condition — check this box before the RFP closes, not after.
• CE and VDE Certified: CE marking satisfies EU low-voltage and EMC directives. VDE certification adds German electrical safety authority validation — relevant for European installations or multinational deployments with stringent local compliance requirements. Together with UL/cUL, this is a four-jurisdiction certification stack.
• 0–40°C Operating Range: Rated for operation from 0°C to 40°C — standard for controlled data center and equipment room environments. If your installation space can exceed 40°C ambient (e.g., poorly cooled industrial floors), plan your cooling load before deploying; this module is not rated for high-heat open environments.
• 0–95% Operating Humidity: The full 0–95% relative humidity range (non-condensing by convention for electronics) means the module tolerates humid environments without derating — useful for coastal facilities or industrial spaces where humidity control is imperfect.
• Compact Modular Form Factor (491 × 840 × 591 mm): At 491mm wide × 591mm tall × 840mm deep, the SYSW250KD is designed to integrate into modular power distribution frame infrastructure rather than occupy standalone floor space. Confirm your PX frame bay dimensions before ordering — module depth at 840mm requires adequate rear clearance.

Integration and Compatibility

The SYSW250KD is a module within APC's PX 250KW static switch platform. Deployment requires a compatible PX frame enclosure — the module itself does not operate standalone. Verify frame compatibility and available bay slots against your existing PX infrastructure before procurement. The dual 400/480V rating allows integration into both European and North American three-phase power architectures, but input feed voltage and phasing must match the installed frame configuration. For power supply planning guidance, confirm upstream circuit breaker sizing against the 25000 VA load rating. Package dimensions (780 × 915 × 930 mm, 105 kg) indicate freight delivery — standard pallet lift equipment is required for installation.

Frequently Asked Questions

Q: What voltage configurations does the SYSW250KD support?

A: The SYSW250KD supports both 400V and 480V three-phase configurations, making it deployable across European/international and North American industrial power infrastructures without additional transformer stages.

Q: What certifications does the SYSW250KD carry?

A: The SYSW250KD is cUL Listed, UL Listed, CE marked, and VDE certified — covering US, Canadian, EU, and German electrical safety and compliance requirements.

Q: What is the maximum load capacity of the SYSW250KD?

A: The SYSW250KD is rated for 25000 VA (25 kVA). Size your connected load against this figure and include derating margins per your facility's engineering standards.

Q: What type of output connections does the SYSW250KD use?

A: The SYSW250KD uses two Anderson-type output connectors — a high-current industrial standard that supports positive locking and field-replaceable termination without rewiring.

Q: What are the operating temperature and humidity limits for the SYSW250KD?

A: Operating temperature range is 0°C to 40°C; operating relative humidity is 0% to 95%. Storage limits extend to -15°C to 40°C temperature and 0–95% humidity.

Q: Does the SYSW250KD operate as a standalone unit?

A: No. The SYSW250KD is a module designed for integration into a compatible APC PX frame enclosure. It requires a matching frame and bay slot — it does not function independently outside that architecture.

James Everett

The SYSW250KD is a 25000 VA static switch module built for high-availability 400/480V power architectures. What stands out in the spec sheet is the four-jurisdiction certification stack — UL, cUL, CE, and VDE — which is unusual in a single module SKU and directly addresses procurement friction on multinational data center projects where local AHJ sign-off can stall deployments for weeks.

Technical Highlights:

• 25000 VA Rating: At 25 kVA, this module handles a substantial server or industrial load segment. Factor in a 20–25% derating margin under continuous operation per ASHRAE guidance before finalizing your load allocation.
• Dual Anderson Output Connectors: Anderson connectors at this power level provide a reliable, vibration-resistant termination method — important in industrial environments where mechanical vibration or frequent maintenance access could compromise screw-lug connections over time.
• 0–95% Humidity Tolerance: The full humidity range means you're not restricted to climate-controlled rooms only. Coastal data centers or industrial facilities with imperfect humidity control won't need to derate or add supplemental climate equipment for this module alone.

Deployment Considerations:

• The module dimensions (491mm W × 840mm D × 591mm H) and 105 kg package weight mean you need proper freight handling and a compatible PX frame bay confirmed before delivery — there is no unboxing-and-plugging-in scenario here.
• The 40°C upper operating limit is a hard ceiling. Ambient temperatures in the equipment bay must stay below this; if your cooling design has a hot-spot risk near this module's installed location, address it in the thermal model before commissioning.

The SYSW250KD is the right specification for a multinational enterprise or colocation operator expanding a PX-architecture power plant across US and European sites — the dual-voltage support and four-certification stack eliminate the need for country-specific module variants and simplify compliance documentation across jurisdictions.