My Account | Login | Checkout

You are not logged in

Enter the search term for the product you are looking for below:

More Options
Display my previous orders

To repeat a previous order in part or full, click the link above. To purchase or view any of the items you have purchased before, simply select it from the list below.

Click on image for full size
90 Amp, 12V - 1200V Three phase rectifier - (AC to DC). Hoffman NEMA 3R rain tight enclosure.
90 Amp, 12V - 1200V Three phase rectifier - (AC to DC). Hoffman NEMA 3R rain tight enclosure.


Available in increments of 1
Total Percent Off Per Unit
$99.75 0% $99.7500
$189.53 5% $94.7625
$448.88 10% $89.7750
$847.88 15% $84.7875
$1,596.00 20% $79.8000
$3,990.00 20% $79.8000

90 Amp, 3 Phase 1200 Volt Rectifier

EMP Hardened (When properly grounded)

3 Phase AC to DC Rectifier

Works with 12 volt to 1200 volt systems

This unit will handle a massive amount of power. Perfect for medium to large residential and commercial turbines and generators. This AC to DC, three phase rectifier uses six, 30 amp continuous duty (at 90c), 120A surge (per diode) at 1200 volts. The diodes are fully embedded in a electrically non-conductive epoxy/mortar mix. This mortar allows for even heat distribution to the box itself to allow for proper cooling at high amps. A high temperature epoxy is then used to encase the entire assembly of diodes, copper and mortar and bond it securely to the Hoffman outdoor enclosure.The Hoffman Nema 3R, enclosure measures 4.1" wide, by 6.5" high by 4.1" deep. It has 2 knockouts on the bottom for easy access. Has a lockable cover. The unit weighs 5 lbs.The rectifier is capable of running at 90 amps continuous and 720 amps surge at nearly any voltage a wind turbine might produce. A 48v wind turbine will probably produce around 75 volts with a strong to moderate wind.This rectifier at 75 amps would allow more than 5625 watts of power at 75 volts.The rectifier itself uses 6 diodes rated at 50 amps each at 25c. Theoretically, it could handle even more than 90 amps but cooling must be taken into account and is actually the limiting factor. Please see the diode specification sheet below.


A/C power is terminated to the 3 screws in the middle.

Outgoing D/C is provided on the two screws on each side.




Diode Specs (per diode) there are 6 diodes forming a 3 phase bridge.

Drip shield top and smooth seamless sides.
Front Knockouts on bottom.
A slip-on reversible cover is securely fastened with screws located along bottom edge.
No gasket is required for padlocking or meter seal is provided.
ANSI-61 gray polyester powder coated inside and out.

How to compare this three phase rectifier with others:

  • Does it provide the capacity you need?
  • Do they include a convenient method of installation?
  • Will it allow termination of large wire?
  • Is it EMP Hardened?
  • Is the rectifier insulated (lightning proof)?
  • Does the rectifier have adequate heat dissipation?
  • Is the enclosure weather resistant, and rain tight?


Customers who bought this item also bought

170 Amp, 12V - 600V Blocking Diode Array with Enclosure
170 Amp, 12V - 600V Blocking Diode Array with Enclosure

click to see more

100V/100A DC Dual Digital Amp/volt LED Panel Meter
12/24/48 Volt, 100 Amp DC Digital Blue Dual LED Panel Meter on/off Switch
8.5 to 100 volts - No separate power required

click to see more

35A/24V 1000 Watt Diversion Dummy Load Resistor Heater
35A/24V 1000 Watt Diversion Dummy Load Resistor Heater
For 24 volt systems. Made with 5 - 4.25 ohm Kanthal-A1 wire wound resistors.

click to see more

3 Three Phase Wind Turbine Disconnect Switch with Brake

click to see more

C440-HVAD HVA Digital C440-440 A Amp/Volt Wind/Solar Battery Charge Controller
The digital version of the C440-HVA
Wind/Solar Diversion-Charge Load Controller.
440 Amp (In rush) Solenoid 12, 24 or 48 volts.
Digital interface.
2 x 16 LCD with auto on/off switch.
Automatic battery voltage detection.
Built in D/C Breakers.
Factory wired for both wind and solar.
8 x 12 Hoffman Box.
Reverse polarity protected.
Not recommended for use with lithium battery banks in the solar mode.

click to see more

Featured videos

Coleman Air Products

Copyright 2010-2017 Coleman Air, Inc. All rights reserved.

Have Questions? -- Please call us at 1-800-577-4169

We verify orders.

In addition to standard credit card verification procedures which insure the credit card is not stolen, we also verify the computer IP address, phone numbers, etc., to ensure the person placing the order is not doing so for fraudulent purposes. We work with all applicable agencies to prevent and/or report fraudulent or suspicious activity.

Official PayPal Seal