1250KW Trailer Mounted Load Bank

The R1250TM is a rental-grade, dual-voltage trailer-mounted resistive load bank designed for continuous outdoor operation. It features advanced touchscreen controls, real-time monitoring, data logging, and network capabilities for testing and commissioning power systems.

Description

Features:
• Advanced Color Touchscreen Control and Monitoring
• Intuitive HMI control screens
• Nema 3R type design
• Maintenance Screen for specific overall kW selection
• Network multiple load banks
• Adjustable exhaust louvers for HVAC testing/commissioning

Load Bank Ratings:
• Standard Capacity rating of 1250 kW at 480V, 800kW at 240V.
• Standard Voltage rating of 240, 480 VAC, 3 Phase, 60 Hz.
• Load step resolution 5kW at 240 or 480 VAC

Please contact us if you require any nonstandard ratings.

Control Power:
Provided by an integral dual voltage control power transformer

Cooling System:
Dual voltage(240 & 480V) capability from either internal or external source. Cooling circuit is protected by fusing, circuit breakers and motor start components. Air discharge will be horizontal.

System Digital Controls:
Integral PLC and Color Touchscreen HMI. Full Volt, Amp, Frequency, kW monitoring along with real time data acquisition.

HMI screens include Power Date, Safety, Screen Capture, Data Logging and Maintenance.

Load controls consist of kW Select, Load On, Load Apply, Load Drop and Load Profile(up to 10 load steps).Load resolution is 5kW at 240 & 480 VAC, 3 Phase 60 Hz.

Comprehensive safety features ranging from Over Temperature and Over Voltage to Phase Loss/Reversal Door Panel status and a physical push button E-Stop.

Network multiple load banks from a single HMI. A USB port is included for Data download and software/firmware updates.

Cable Storage Reels: Two (2) AC Powered, and covered are provided. Includes directional controls & footswitch.

Enclosure:
Heavy gauge steel and aluminum with powder coat finish. RAL 7042 Color with Matt Finish Polyester Powder Coat.
Enclosure is Nema 3R Type construction for operation in indoor and outdoor environments.
Hinged access doors with lockable latches.

Power Connections:
Industry Standard color coded quick disconnect connectors are provided.

Resistor Elements:
ULB “Helicon” high-capacity Nichrome load elements. Elements are fully supported with stainless steel rods and high temperature refractory ceramics for quick hea discharge.

Mobility:
Load Bank and storage reels are factory mounted and balanced on a DOT rated trailer.

Certifications:
UL & cUL Listed. Manufactured in an ISO-9001:2015 certified facility.

Dimensional Information:
83 W x 250 L x 78 H (inches).
211 W x 635 L x 198 H (cm)
Approximate weight of 7127 lbs /3232 Kgs

Specifications subject to change without notice.

Available Options:
Remote Laptop Control.

Trailer Ready Design

Warranty:
One (1) year after acceptance or shipment. Warranty covers material and workmanship on new equipment, and ULB spare parts.

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related products

The Universal Load Banks R500H is the new standard in portable resistive load banks. The RH series is a rental grade, dual voltage unit designed for continuous indoor or outdoor operation. The RH is available in 400, 500 or 600 kW capacities.

Features:

  • Intuitive HMI control screens
  • Outdoor rated construction
  • Maintenance Screen for specific overall kW selection
  • Network multiple load banks
  • Advanced Color Touchscreen for Control and Monitoring

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The ULB-R2000 features a modular design with common subassemblies, improving quality and reducing lead times. For example, only one load module is required for 1000 kW testing, while two modules are used in daisy-chain mode with a common digital controller for 2000 kW testing.

The Model ULB-R110 is a compact 110 KW portable load bank for testing stand-by generators, UPS systems, ground power units, or any other AC power source. The load bank features an extra 10 KW capacity as compared to competing load banks that only offer 100 KW maximum. The load bank is digitally controlled with 5 KW load step resolution. Simply connect any voltage (up to 480 VAC) to the load bank terminals and the load bank automatically detects and configures for that voltage. Next, enter the desired load value into the color touchscreen digital controller, and the load bank will automatically supply the requested load to the nearest 5 KW, regardless of load voltage.

The load bank is digitally controlled via a hand-held color touchscreen display, which includes standard on-screen data monitoring and data event logging to a USB stick. For higher capacity, two or more load banks can be daisy-chained together with a network cable (provided) and operated from a single digital hand-held controller. The load bank is the only load bank of this capacity in the industry with standard digital controls. Its compact size and quality construction make the ULB-R110 load bank ideal for load testing in the field at multiple sites with only a single technician.

The load bank features a compact enclosure with four high-velocity cooling fans, high-capacity chromium alloy resistor elements with high-temperature refractory ceramics, lifting and moving handles, caster wheels, and fully-rated, color-coded Cam-Lok load terminals (one per phase). The load bank cooling fans and digital controls operate from an external 110/120 VAC, single-phase, 50/60 Hz power source using the line cord provided.

The Model ULB-R100-CP

Is an ultra-compact 100 KW portable load bank for testing stand-by generators, UPS systems, ground power units or any other AC power source at 208, 240, or 480 volts. The load bank has an integral forced air cooling system with twelve high-velocity cooling fans for maximum airflow in a small package. The resistor elements are high-temperature nichrome/mica type exclusively manufactured by ULB. The load bank is manually controlled and features five individual load step switches, voltage selector switch, and master load switch. The load bank cooling fans and controls operate from an external 110/120 VAC, single phase, 50/60 Hz power source using the line cord provided. The load banks also includes a Digital Power Meter for VOLTAGE /CURRENT / POWER measurement and display. A USB port is also included for data logging and monitoring of test data on an external PC or laptop. Safety circuits include thermal protection plus phase indication lights which illuminate when voltage is present. Test pins are also included for connecting external multi-meter test leads. This ultra-compact load bank includes an airworthy protective shipping case with roller wheels, lifting handles and a retractable suitcase style handle. The load bank itself is about half the weight of traditional 100 KW load banks.

APPROXIMATE WEIGHT:

Load Bank: 71 lbs.
Shipping Case: 41 lbs.
Total: 112 lbs.