# Hammond Power Solutions DM660BK Drive Isolation Transformer 3-Phase 660 kVA 208V Delta to 480Y/277V Aluminum Type 3R - MROSupply.com

***Hammond Power Solutions DM660BK drive isolation transformer, 3-phase 660 kVA, 208V delta primary to 480Y/277V wye secondary, aluminum windings, 150°C rise, 220°C insulation, Type 3R enclosure, 60 Hz, CSA and UL listed.***



## Product details:

- Catalog number: DM660BK
- SKU: 2836999
- Price: ***$31,080.00*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Hammond Power Solutions](https://www.mrosupply.com/brands/hammond-power-solutions/)
- Category: 
    - [Drive Isolation Transformers](htts://www.mrosupply.com/electrical/transformers/drive-isolation-transformers/)
    - [Transformers](htts://www.mrosupply.com/electrical/transformers/)
    - [Electrical](htts://www.mrosupply.com/electrical/)
- Unit of measure: each
- Weight: 2900.000 lb
- Returns: Yes
- Technicall support: contact supplier for technical support on 4153324100


## Product images:
- https://static.mrosupply.com/images/noimage.webp


## Product attributes;

  
- Approval: CSA, UL
  

  
- Availability: Custom sizes, ratings and styles available upon request
  

  
- Certification: CSA certified
  

  
- Drive isolation transformer: 3ph 660kVA 208V-480Y/277V 60Hz AL
  

  
- Duty: General duty
  

  
- Efficiency regulation: Not specified (USA)
  

  
- Enclosure dimensions: 66in/1677mm(H), 51.5in/1309mm(W), 43in/1093mm(D)
  

  
- Enclosure finish: ANSI 61 grey, UL50
  

  
- Enclosure IR window: No
  

  
- Enclosure PN (NPL): NJ3-N3R
  

  
- Enclosure type: Type 3R / IP24
  

  
- Frequency: 60 Hz
  

  
- Impedance (std): 5.5% - 7.5%
  

  
- Insulation class: 220°C
  

  
- Insulation System: 220°C (150°C rise)
  

  
- Material: Copper and aluminum available
  

  
- Motor HP: Not Selected
  

  
- Nameplate: HPS standard
  

  
- Net weight (NPL): 3500 lb / 1590 kg
  

  
- Number of secondaries: 1 (6-pulse)
  

  
- Phase: Three phase
  

  
- Primary connection: Delta
  

  
- Primary FCAN (NPL): 1x5.5%
  

  
- Primary FCBN (NPL): 1x5.5%
  

  
- Primary termination (NPL): Mounting pads
  

  
- Primary voltage: 208D, 230D, 460D, 480D, 575D
  

  
- Rating: 660 kVA
  

  
- Ratings: 7.5 to 660 kVA
  

  
- Secondary connection: Wye-N
  

  
- Secondary termination (NPL): Mounting pads
  

  
- Secondary voltage: 480Y/277
  

  
- Seismic compliance: IBC 2018 (Sds=2.0, z/h=0, lp=1.5)
  

  
- Sound level: 62 dBA (NEMA ST-20)
  

  
- Standard kVA: 660
  

  
- Temperature rise: 150°C
  

  
- Thermal protective device: Normally closed (all coils) thermostats with 200°C setpoint, typically built to order
  

  
- Vector configuration: YNd1 (-30°)
  
## Product documents / software:

- [Brochure](https://documents.mrosupply.com/product_documents/60/94/6094015/HPS-Tribune-Non-Efficient-Brochure_yGyq0dR.pdf)
- [Engineering Drawing (PDF)](https://documents.mrosupply.com/product_documents/28/36/2836999/DM660BK_KeOSgMm.pdf)
- [Installation Manual](https://documents.mrosupply.com/product_documents/64/20/6420994/NH-Series-or-NJ1-NJ4-Type-Enclosures-IOMGDDI_Z0NfNJ3.pdf)

## Product's reviews:
- Shipped fast, great product - Found these at a good price, shipped very fast. Nice quality.
- Hps c1f002wes - I was looking for a 2KVA isolation transformer, and I found it at MROSupply! Delivery was quick, and once I installed it everything worked as expected. I highly recommend this product to customers looking for a similar transformer.
- Great price and fast shipping - MRO exceeded expectations, with a great price and fast shipping.