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Stationary Load Banks
The Trystar LS Series Outdoor Stationary Load Banks deliver rugged, high-capacity power testing solutions for mission-critical standby systems. Built with galvanized steel, stainless fasteners, and a durable powder-coat finish, they are engineered to withstand harsh outdoor environments. Intelligent controls, adjustable load step resolution, and advanced safety features ensure reliable, operator-friendly performance. With flexible monitoring and control options—including manual, digital, software, and networking—the LS Series simplifies commissioning and scheduled testing. Featuring Trystar’s industry-leading PowerDyne™ resistors, efficient cooling systems, and scalable configurations, the LS Series provides unmatched durability, precision, and long-term reliability.
Features
- Rugged Outdoor Design – Constructed with galvanized steel, stainless-steel fasteners, and a durable powder-coat finish to withstand harsh environments, with optional 304/316 stainless enclosures.
- Reliable Power Testing – Engineered for scheduled testing and commissioning of mission-critical standby emergency power systems, ensuring long-term reliability.
- Intelligent Controls & Monitoring – Operator-friendly layout with emergency stop, illuminated switches, and smart fault indicators. Advanced options include remote, digital, and networked control via Series One controller.
- Enhanced Operator Safety – Built-in protection against airflow failure, overtemperature, motor overload, wrong voltage application, and load dump, with clear visual indicators for quick response.
- Automatic Load Level Control – Optional feature prevents engine wet-stacking by automatically regulating load levels to match system demand.
- Durable PowerDyne™ Resistors – Industry-leading resistors designed for outdoor use, supported with stainless rods and ceramic insulators, providing consistent performance and extended life.
- Efficient Cooling System – High-performance, direct-driven blower delivers reliable cooling airflow, with short-circuit and thermal overload protection for motor circuits.
- Scalable, Flexible Operation – Multiple load banks can be networked and operated in parallel, giving facilities scalable testing solutions from a single control panel or software interface.
Specifications
- Power Rating: Up to 3000kW
- System Voltages: Up to 600 VAC
- System Frequencies: 50 or 60 Hz
- Construction: Outdoor weatherproof design with galvanized steel housing, powder-coat finish, and stainless-steel fasteners, Optional 304/316 stainless enclosures and custom paint colors
- Main Features: Rated for continuous duty with no cool-down period, Industry’s highest capacity in the smallest footprint, Arctic Duty solutions available for operation down to -40°F, Slide-out resistor case assemblies for simplified maintenance, Branch circuit fusing to virtually eliminate catastrophic failure, Intelligent safety circuits, indicators, and operator controls, Multiple options for local or remote operator control
- Control Power: External 120 VAC, 1-phase, 60 Hz required for control circuit operation, Optional control power transformer available when 120 VAC is not readily accessible
- Control Options: Standard manual controls with emergency stop and illuminated switches, Advanced digital or software control. Networked operation – multiple load banks controlled from a single panel, Remote operator control options available
- Digital Power Meter (Optional): 3-phase digital power metering system measures 16 load parameters, RS485 (Modbus protocol) for remote reading, PC, PLC, or data logger integration
- Automatic Load Dump: Provides interface to generator controls, ATS, or building management systems, Automatically disconnects all load steps via NC auxiliary contacts during actual power failure
- Resistor Technology: PowerDyne™ resistors with stainless support rods and ceramic insulators for rugged outdoor performance
- Cooling System: Direct-driven, high-performance blower motor, Short-circuit protected with current-limiting fuses, Thermally protected by overload relays
- Safety Features: Emergency Stop (E-Stop), Airflow failure, overtemperature, motor overload, and wrong voltage protection, Load dump indication. Branch circuit fusing and operator fault indicators
Documentation
Product Brochures
Instruction / Owners Manuals
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Instruction Manual Automatic Load Controller
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Instruction Manual LB Series
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Instruction Manual Load Shed Regen
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Instruction Manual Series One Load Bank Controller
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Instruction Manual Stationary Load Bank LS Series 50Hz
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LS Series Stationary Outdoor Resistive Load Bank – LS Series Instruction Manual
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LS Series Stationary Outdoor Resistive Load Banks
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M850 Digital Meter Data Logging Instructions
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Stationary Load Band Load Shed Regen Instruction Manual
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Stationary Outdoor Resistive Load Bank – LB Series Instruction Manual
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Stationary Outdoor Resistive Load Bank – LS Series Instruction Manual
Tools
Specifications
Application Notes
Quick Start Guide
Software Downloads
Support
Services
Technical Support, Start Up Support, Preventative Maintenance, Field Service, In-house Repair, Spare Parts
Website: https://www.trystar.com/services/request-for-services/
Phone: 507-333-3990,1
Email: services@trystar.com
Sales Support
Quotes, lead times, and general product questions
Website: https://www.trystar.com/contact/
Phone: 507-333-3990,2
Designed for Real-World Demands
Discover how this product is used across markets for different applications.
Commercial
Discover a range of electrical solutions to keep commercial buildings operational and secure. Benefit from our engineering expertise and manufacturing agility, allowing for customized solutions to meet your specific needs.
Government
For government agencies, Trystar offers reliable power solutions that ensure that critical infrastructure remains powered and operational.
Healthcare
We offer power solutions to hospitals, medical centers, and emergency response departments to provide reliable and uninterrupted power, helping them to meet patient needs efficiently and safely.