Page 26 - Load Bank Rentals

MERLIN 500R ®

500KW Resistive Load Bank
Insight Onsite

Powr-Web Resistive Construction
Load Element • Precision calibrated to specific ohmic
value
• All load elements are continuously
supported by vibration resistant,
ceramic clad, stainless steel through-
rods.
Specifications

• Alloy: FeCrAl
• Maximum continuous temperature
rating: 1920°F
• Maximum operating temperature as
applied in Load Bank: 1080° F
• Cool down time from operating to
ambient temperature is 10 seconds.

Branch Circuit Fuse
Protection

The load of a resistive load bank
consists of a dense array of open,
uninsulated power resistors mounted
within a cooling air stream. Since
the elements are electrically live, it is
possible for a foreign object to penetrate
the element array and create a short
Description circuit of adjacent elements or a short to
ground. Since the elements are densely
packed, it is possible for a short circuit,
Simplex Load Banks utilize the “Powr- once started, to rapidly propagate
Web” Load Element (a UL Recognized through the entire element array. As
Component). The “Powr-Web” is an a load bank represents a relatively
advanced design, air-cooled power large amount of power concentrated
resistor specifically designed for within a relatively small volume, a self-
application to load bank systems. The propagating, cascading short circuit
“Powr-Web” is conservatively operated would have catastrophic results.
at half the maximum temperature rating
of the alloy and features a short-circuit- Simplex virtually eliminates the
safe design based on continuous dangers of short circuit through the
mechanical support of the resistor use of branch circuit fuse protection of
by high temperature, ceramic clad the load elements. Per NEC 110-10,
stainless steel rods. protective devices shall clear a fault
without “extensive damage” to the circuit
components. A Simplex Load Bank is
divided into branch circuits of not more
than 50 KW each.

SIMPLEX INC. © 2021 Simplex, Inc. All Rights Reserved.
5300 Rising Moon Road, Springfield, IL 62711 • simplexdirect.com • 800-637-8603 Printed in the USA • 2103-02.00 • Page 26
Nationwide Manufacturing (ISO9001: 2015 certified) Design subject to change without notice.