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AUTOMATICALLY SWITCHED, LOW-VOLTAGE EQUIPMENT
The NRG/Merrimac Accuvar-Plus multi-step power factor control
equipment automatically maintains desired power factor level,
adjusting to system load requirements in selected KVAR steps. The
solid-state controller responds to a current signal from the optional
current transformer and to voltage signal from a potential transformer
included in the equipment.
The Equipment features capacitors with a metallized dielectric system
providing a self heating action reducing energy losses. The
biodegradable impregnant is a class IIIB combustible fluid. Discharge
resistors reduce the voltage to 50 volts or less with one minute of de-
energization.
The power factor controller uses a Current Transformer (CT) signal for
operation. The CT primary is sized for the total phase current to be
compensated (capacitor current and load current). Typically, the total
phase current should be 50% to 80% of the CT primary rating. The CT
secondary is rated 5A. Our highly experienced application engineers
are available to assist with your operational applications.
✓ Correction to unity power factor, if desired
✓ UL and cUL listed
✓ NEMA 1, or 3R 12-guage steel cabinet enclosure with RAL7035
light grey paint
✓ Dimensions 32”W x 24” D x 90” H (Standard) up to 300 KVAR
✓ Removable lifting eyes
✓ Safety door interlock to prevent door from being opened while
equipment is energized
✓ Microprocessor-based controller with built-in voltage and
harmonic alarms provides a safe and rapid indication of potential
or real failure; Digital display of power factor, current and
capacitor step status
✓ Manual switching capability
✓ Industrial duly, UL recognized safety disconnect, metallized
dielectric capacitors, less than 0.2 watts per KVAR losses
employing 200 kAIC current limiting fuses in all three phases
✓ Designed to minimize installation time and costs
✓ Convection cooling – no fans required
✓ Ratings: 120 KVAR maximum at 240 volts 450 KVAR maximum at
480 and 600 volts
✓ Split core current transformer (CT)

✓ Blown fuse indicator
✓ NEMA 3R cabinet available
✓ Bottom entry or Top entry
✓ Hand-off auto switches
✓ Modeled case circuit breaker internally mounted
with external operator
✓ Power on/off switch
✓ LED capacitor stage display
✓ Available with Dry Capacitors
| Volts | kVAR | Base Catalog Number | kVAR/Step | Breaker Rating |
|---|---|---|---|---|
| 240 | 40 | 37FJ2040D205 | 20 | 400 |
| 60 | 37FJ3060D205 | 20 | 400 | |
| 80 | 37FJ4080D205 | 20 | 400 | |
| 100 | 37FJ5100D205 | 20 | 400 | |
| 120 | 37FJ6120D205 | 20 | 600 | |
| 480 | 50 | 37FJ2050F255 | 25 | 400 |
| 75 | 37FJ2075F255 | 25 | 400 | |
| 100 | 37FJ3100F255 | 25 | 400 | |
| 125 | 37FJ3125F255 | 25 | 400 | |
| 150 | 37FJ3150F505 | 50 | 400 | |
| 175 | 37FJ4175F255 | 25 | 400 | |
| 200 | 37FJ4200F505 | 50 | 400 | |
| 225 | 37FJ5225F255 | 25 | 600 | |
| 250 | 37FJ5250F505 | 50 | 600 | |
| 275 | 37FJ6275F255 | 25 | 600 | |
| 300 | 37FJ6300F505 | 50 | 600 | |
| 350 | 37FJ6350F505 | 50 | 600 | |
| 400 | 37FJ6400F505 | 50 | 800 | |
| 450 | 37FJ6450F505 | 50 | 800 | |
| 600 | 50 | 37FJ2050H255 | 25 | 400 |
| 75 | 37FJ2075H255 | 25 | 400 | |
| 100 | 37FJ3100H255 | 25 | 400 | |
| 125 | 37FJ3125H255 | 25 | 400 | |
| 150 | 37FJ3150H505 | 50 | 400 | |
| 175 | 37FJ4175H255 | 25 | 400 | |
| 200 | 37FJ4200H505 | 50 | 400 | |
| 225 | 37FJ5225H255 | 25 | 400 | |
| 250 | 37FJ5250H505 | 50 | 400 | |
| 275 | 37FJ6275H255 | 25 | 600 | |
| 300 | 37FJ6300H505 | 50 | 600 | |
| 350 | 37FJ6350H505 | 50 | 600 | |
| 400 | 37FJ6400H505 | 50 | 800 | |
| 450 | 37FJ6450H505 | 50 | 800 |
To order breaker or blown fuse lights or both
options, see below:
| Suffix Letter | Option |
|---|---|
| L | Blown Fuse Lights |
| B | Breaker |
| R | Lights & Breaker |
Breaker Options:
| Current Rating | kAIC Ratinng | Code for Standard |
|---|---|---|
| 400 | 35 | 00003 |
| 600 | 35 | 00006 |
Note: Breaker option suffix number goes after
the Option Suffix Letter.



UL508A File # E215926: Industrial Control Panels,
UL698A File # E363726: Industrial Control Panels
Relating To Hazardous Locations
UL891 File# E550145: Switchboards

