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Roof Top Mounted Load Banks
The Trystar LD-RT Series Radiator Duct Mounted Load Banks provide a simple, economical solution for preventing diesel generator wet-stacking during light-load operation while supporting scheduled maintenance of mission-critical standby systems. Built with powder-coated galvanized steel frames, stainless steel tops, and rugged PowerDyne™ resistors, they ensure durability and long-term performance. Available from 10 kW to 400 kW at voltages up to 600 VAC, these load banks deliver precise, adjustable load steps for effective testing. Operator safety is built in with illuminated controls, Emergency Stop, branch circuit fusing, over-temperature protection, and automatic load dump. Optional features include automatic load level control and remote monitoring for seamless integration.
Features
- Flexible Power Capacity – Available in 10 kW to 400 kW models at single- or three-phase voltages up to 600 VAC, sized at 50% of the generator’s rating for optimal results.
- Rugged PowerDyne™ Resistors – Heavy-duty, fully supported resistor elements withstand high heat and airflow stresses, ensuring stability, safety, and long service life.
- Safe & Easy Operation – Features illuminated power and load switches, Emergency Stop, branch circuit fusing, and over-temperature shutdown with visual indicators.
- Prevents Generator Wet-Stacking – Provides supplemental load during light-load operation to protect diesel engines, improve performance, and reduce harmful emissions.
- Durable, Long-Lasting Construction – Built with powder-coated galvanized steel frames, stainless steel tops, and stainless hardware, ensuring resistance to wear, weather, and corrosion.
- Flexible Power Capacity – Available in 10 kW to 400 kW models at single- or three-phase voltages up to 600 VAC, sized at 50% of the generator’s rating for optimal results.
- Rugged PowerDyne™ Resistors – Heavy-duty, fully supported resistor elements withstand high heat and airflow stresses, ensuring stability, safety, and long service life.
- Safe & Easy Operation – Features illuminated power and load switches, Emergency Stop, branch circuit fusing, and over-temperature shutdown with visual indicators.
- Automatic Load Level Control (Optional) – Eliminates wet-stacking by sensing connected load and automatically regulating supplemental load steps for precise performance.
- Seamless System Integration – Includes automatic load dump and remote indication/alarm contact closures for easy connection to generator controls, ATS systems, or building management systems.
- Compact, Roof-Mounted Design – Sized to match radiator exhaust openings with optional overhangs for bottom conduit entry, simplifying installation and maximizing space efficiency.
Specifications
- Power Rating: Up to 400 kW
- System Voltages: Up to 600 VAC, single- or three-phase
- System Frequencies: 50 or 60 Hz
- Main Features:
– Specifically designed for rooftop mounting on sound-attenuated GenSet enclosures with vertical exhaust – Reduces engine wet-stacking and improves emissions – Sized to match exhaust area for precise installation
– Separate wall-mounted Operator Control Panel – Outdoor weatherproof construction with galvanized steel roof-top resistor frame, powder-coat finish, stainless steel fasteners, and exhaust screen
– Custom paint colors available to match GenSet enclosures - Resistor Technology: PowerDyne™ resistors, fully supported across their length in the airstream with stainless steel rods and ceramic insulators
- Operator Controls: Illuminated Main Power On/Off switch, individual load step switches, fault indicators, and Emergency Stop push button
- Safety Features: Branch circuit fuse protection, over-temperature protection, illuminated fault indicators, and automatic load dump
- Optional Functions: – Automatic Load Level Control: Regulates supplemental load to prevent wet-stacking – Remote indication and alarm contact closures for BMS integration
Documentation
Product Brochures
Technical Drawings
Tools
Application Notes
Instruction / Owners Manuals
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.
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Government
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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.
Industrial
Enhance productivity, efficiency, and safety in various industrial applicationswith Trystar’s innovative, customer-centric solutions gained through our experience helping our customers solve their power challenges.