We are now hiring. Check out our current open positions!

Merlin

Overview

The Simplex Merlin is a dual voltage (240/480V - 100KW-400KW; 416/480V - 500KW), fine load step resolution, fully instrumented portable Load Bank intended for shop or field use by engine generator dealers and service shops for maintenance, testing and performance proving of engine generator sets, UPS and other power systems in the 100KW-500KW range.

The Merlin is a totally self-contained testing system. It includes all resistive load elements, load control devices, load element circuit protective devices, connection cable set (100KW-400KW) or cam-type connectors (500KW), cooling system, malfunction detection system, control power supply and test instrumentation.

We are experts at building products that meet our customer's exact requirements. Contact Simplex if your job specifications require additional options or considerations.

Request a Quote

Features

Load Element

  • Simplex Powr-Web chromium alloy, open wire, continuously supported, power resistor.

System Controls

  • Digital Meter (100KW-400KW).
  • Fan Reversal, Load Voltage Selector, and Control Voltage Selector switches.
  • Operator indicator lights: normal operation, over-voltage, fan failure / over-temperature.
  • Master load toggle switch and load step toggle switches.

Cooling

  • 3-phase, direct drive fan, 6,000-8,000CFM (depending on load configuration).
  • Casts aluminum air foil type, shrouder propeller fan.
  • Horizontal airflow - cold air intake from front, hot air exhaust out the rear.

System Protections

  • Sensors, alarms (alarm message on remote operator interface terminal), lockouts as appropriate, for the following: fan failure, high exhaust temperature, high intake temperature, high interior temperature (sensed at three points).
  • Load Circuit Protection: branch circuit fuses. One set of fuses each 50KW branch. Fuses are current limiting type, 200,000 AIC, 600V, enabling safe use on large generating or UPS system.

Load Control

  • Master load toggle switch and load step toggle switches.
  • 3-pole magnetic contactors.

Power

  • Operator selectable fan/control power-source:
    • Internal Power: fan and control circuits powered internally, does not require external power.
    • External Power: fan and control circuits powered from external 3-phase outlet or other external source.

Connections

  • Control Wiring: 105°C, color coded.
  • Power Wiring: 150°C XLP color-coded.

Load Connection

  • 100KW-400KW: 12' connection cable set including 3-phase power cables, ground cable and external control power cord.
  • 500KW: cam-type connectors and external control power cord.

Enclosure

  • Exceptionally rugged, all welded, formed steel chassis.
  • Portability features: lifting eyes, forklift channels, casters and moving handle.

Specifications

Capacity Detail

Rating Capacity (KW) Cooling Fan Load Steps
240/480V, 3‑phase 208/416V, 3‑phase 190/380V, 3‑phase 240V, 1‑phase HP Voltage CFM
100KW 100 75 63 67 0.75 120V/240V, 1‑phase 6000 5, 10, 10, 25, 50
150KW 150 112 94 100 0.75 120V/240V, 1‑phase 6000 5, 10, 10, 25, 50, 50
200KW 200 150 125 134 1.5 120V/240V, 1‑phase 6700 5, 10, 10, 25, 50, 100
250KW 250 188 157 167 1.5 120V/240V, 1‑phase 6700 5, 10, 10, 25, 50, 50, 100
300KW 300 225 188 200 1.5 120V/240V, 1‑phase 6700 5, 10, 10, 25, 50, 100, 100
350KW 350 262 219 233 3.0 240V/480V, 3‑phase 8000 5, 10, 10, 25, 50, 50, 100, 100
400KW 400 300 250 267 3.0 240V/480V, 3‑phase 8000 5, 10, 10, 25, 50, 100, 100, 100
Rating Capacity (KW, 1ø)
416/480V, 3‑phase 		Cooling Fan Load Steps
KW @ 416/480V, 3‑phase
Capacity HP Voltage CFM
500KW 500 3.0 240V/480V, 3ø 8000 5, 10, 10, 25, 50, 100, 100, 100, 100

General Specifications

General Merlin 100-150 Merlin 200-300 Merlin 350-400 Merlin 500
Load Type Resistive
Fan/Control Power Operator selectable, internal/external
Internal Fan/Control Power 120V, 1ø, 2W, 60Hz
240V, 1ø, 3W, 60Hz
208-240V, 3ø, 4W, 60Hz 		120V, 1ø, 2W, 60Hz
240V, 1ø, 3W, 60Hz
208-240V, 3ø, 4W, 60Hz
416-480V, 3ø, 3W, 60Hz 		190-205V, 3ø, 3W, 50Hz
208-240V, 3ø, 3W, 60Hz
308-416V, 3ø, 3W, 50Hz
416-480V, 3ø, 3W, 60Hz 		416-480V, 3ø, 3W, 60Hz
External Fan/Control Power 115V, 1ø, 60Hz, 15A service
15' cord with plug provided 		115V, 1ø, 60Hz, 20A service
15' cord with plug provided 		230/460V, 3ø, 60Hz, 15A service
15' cord with plug provided 		230V, 3ø, 50/60Hz, 20A service
15' cord with plug provided
Frequency 50, 60 and 400 Hz 50, 60 and 400 Hz 50, 60 and 400 Hz 60 Hz
Duty Cycle Continuous
Temperature Rating 125°F max. intake air temp
Nominal 110°F rise
Airflow 6000 CFM 6700 CFM 8000 CFM 8000 CFM
External Power 115V, 1ø, 60Hz, 15A service
15' cord with plug provided 		115V, 1ø, 60Hz, 20A service
15' cord with plug provided 		230/460V, 3ø, 50/60Hz, 20A service
15' cord with plug provided 		230/460V, 3ø, 50/60Hz, 20A service
15' cord with plug provided
Dimensions 31"W x 47"H x 43"D 31"W x 56"H x 50"D 31"W x 69"H x 50"D 37.5"W x 53.25"H x 72"D
Weight 616 lbs 865 lbs 1,053 lbs 1,050 lbs
Power Connection Cam-Type connector, Qty 3 400A rated 4/0 per phase,
Qty 1 4/0 ground

Downloads

Options

  • Cam-type power connections (standard for 500KW)
  • Vinyl cover

This website stores cookies on your computer. These cookies are used to collect information about how you interact with our website and allow us to remember you. We use this information in order to improve and customize your browsing experience and for analytics and metrics about our visitors both on this website and other media. To find out more about the cookies we use, see our Privacy Policy.