PSP SAK-60MS Series Load Watch – EV Charger Load Management Power Manager

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PSP ELECTRIC VEHICLE LOAD MANAGEMENT

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Stop Panel Overloads Before They Happen

The SAK-60MS Series Load Watch Power Manager is an intelligent load management device engineered for new EV charger (EVC) installations and peak shaving applications. Its onboard microcontroller continuously monitors panel load in real time and only grants the added load access when capacity is available — eliminating nuisance trips and costly electrical infrastructure upgrades.

The SAK-60MSD-M variant includes a factory-installed internal disconnect (40A, 50A, or 60A) for added installation flexibility.

Key Benefits

• Protects any panel up to 400A — manages added loads up to 60A continuous without overloading existing infrastructure
• Precision field-adjustable set points — maximize access to the added load and prevent looping; fully adaptable to any application
• Real-time LCD amperage display — controller shows live panel amperage at a glance
• Self-powered from line voltage — no external power supply required; supports 120 VAC single pole or 208–240 VAC double pole circuits
• Long-term reliability — magnetic latching relay and box-lug in/out terminals for ease of installation
• UL Listed to US and Canadian safety standards
• Prevents costly upgrades — avoid expensive panel or electrical infrastructure expansions

Field-Adjustable Set Points

• Panel overload amperage
• Overload inrush cutoff delay
• Restore amperage threshold
• Load restore delay time
• Line-loss compensation adjustment for CTs

Current Transformer (CT) Options

• Split core CTs available in 100A, 250A, 500A, and 1,000A ratings
• Prewired with 12' #18AWG shielded UL-approved leads

Enclosure Options

• SAK-60MS: Standard polycarbonate NEMA 3R enclosure; available in NEMA 01, 03, 04 steel and stainless steel
• SAK-60MSD-M: Includes internal disconnect (40A, 50A, or 60A); standard NEMA 3R enclosure

Specifications

• Max Managed Load: 60A continuous
• Compatible Panel Size: Up to 400A (main or sub panel)
• Voltage: 120 VAC single pole / 208–240 VAC double pole
• CT Ratings: 100A, 250A, 500A, 1,000A
• CT Lead: 12' #18AWG shielded, UL approved
• Relay Type: Magnetic latching
• Terminals: Box-lug in/out
• Certifications: UL Listed (US & Canada)
• Installation Requirement: Open breaker space or quad breaker
• Warranty: 3 years

Documents

📄 Download SAK-60MS Series Spec & Installation Sheet (PDF)