Simplex Radiator Airflow Cooled Stationary LBD-Series Load Banks

Radiator
Cooled

LBD-Series
1000KW,
800KW, 750KW
600KW, 500KW,
400KW, 300KW,
200KW, 150KW,
100KW, 75KW,
50KW, 40KW,
30KW, 25KW,
20KW, 15KW,
10KW, 5KW

GENERAL SPECIFICATIONS

Capacity
5KW, 10KW, 15KW, 20KW, 25KW, 30KW, 40KW, 50KW, 75KW, 100KW, 150KW, 200KW, 300KW, 400KW, 500KW, 600KW, 750KW, 800KW, 1000KW

Voltage
All common 50, 60 or 400Hz AC

Load Steps
20KW at 208V
25KW or 50KW at 480V
25KW or 50KW at 240V, 1-ph.
5KW and/or 10KW available

LBD-Series Sample Specifications click here.

Sales Bulletin

The Simplex LBD-Series is special form of stationary, resistive, forced air-cooled Load Banks which utilize the air outflow of an engine radiator for cooling of the resistive load elements. This application recovers and uses the volume and velocity of air exiting the radiator. It may appear incongruous that “hot air” from the radiator is used for “cooling”. However, “hot” and “cold” are highly relative in this case. The air exhausting from the radiator and entering the Load Bank may be as hot (or cold) as 180°F. However, the load elements are heated to an average of 700°F, and, most important, the air volume and velocity is very high relative to the heat energy being dissipated by the Load Bank. Consequently, the critical value of “air temperature rise” is limited to a conservative nominal 100°F. Despite an apparent “hot” environment, LBD-Series Load Banks actually operate “cooler” than those comparably rated equipped with integral cooling fans installed in the relative “cold.”

Simplex LBD-Series Load Banks are intended for use with water cooled engine generator sets equipped with unit mounted radiators.

The essential consideration for installation is that it be located somewhere within the radiator air outflow. Installation is simple and adaptive to site/system conditions in numerous ways, including direct bolted attachment to the radiator, mounting within an air duct, wall mounting over the air outflow opening, indoors or outdoors.

Since the design is adaptive to varying site conditions, Simplex LBD-Series Load Banks are ideal for after market retrofit. Many options are available to suit individual requirements and simplify installation.

LBD-Series Load Banks are of a modular-building block design. Simplex builds them up from stock modular parts to match your radiator or duct dimensions exactly.

The control section's standard location is on the left side, but it may be ordered on the right side. A control section may be required on both sides in some applications.

Features

This product has earned the UL Listing Mark

Utilizes the UL Recognized “Pow’r Rod” load element

Branch circuit fuse protection of load elements

Magnetic contactor control of load

Multiple step load configurations

150°C XLP insulated power wiring

Power terminal block with standard size pressure terminals for common building wire

Local or remote control available

Manual or automatic control available

120V control circuits

Install at any point within radiator air outflow

Install indoors or outdoors (via option modification)

Many installation accessories available

Galvanized steel construction

Automatic over temperature protection

Control components separate and isolated from load elements

Continuous duty

Applications

Reliability Exercise and testing of standby generator sets to assure readiness and eliminate the negative effects of both prolonged standby and of no-load exercise.

Base load leveling to eliminate the deleterious effects of low load operation: manual application or fully automatic in response to dynamic load demand.

Automatic protection against generator reverse power and motoring of prime mover by power regenerated by inertial loads.

Options

Mounting Angles

Mounting Feet

Nema-3R Modification

Automatic Current Sensing Operation

VM-AM-FM Meters with switches

KW Meter

Cooldown Timer

Auto-Exercise

Anti-Condensation Heaters

Simplex Load Banks can be used to satisfy the requirements of the National Fire Protection Association (NFPA) for emergency stand-by power systems.

Calculating Load Bank Depth, Dimensions, and Width

DEPTH
Capacity	Depth "A"
less than 50KW	10"
50-150KW, 480V	10"
150-350KW, 480V	20"
50-200KW, 208V	20"
200-350KW, 208V	20"
350-800KW	30"
Note: Depth "A" does not include 2" Mounting Adapters (Angle Flanges) or 3" Louvered Exhaust.

DIMENSIONS
A	B	C	D	E
10"	24"	8.5"	7.575"	.855"
20"	24"	10.0"	8.075"	1.355"
20"	48"	12.0"	10.075"	1.355"

Dimensions are approximate. Due to system complexity, actual dimensions may vary.

TOTAL WIDTH

Total Width = Opening Width + 2" + Control Section(s) Width

10" x 24" Control Section = 19.355" W
20" x 24" Control Section = 11.355" W
20" x 48" Control Section = 13.355" W

Note: A Control Section may be required on both sides for some applications. Due to system complexity, actual dimensions may vary.

LBD-Series Load Bank Remote Control Panel

Remote Control Panel
15" W x 15" H x 10" D
24" W x 24" H x 12" D

	Mounting Diagram

Simplex Inc., 5300 Rising Moon Road, Springfield, IL 62711-6228
800-637-8603 • 217-483-1600 (24 Hr.) • FAX 217-483-1616