DPM:Drive

Protection

Module

Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.stevenengineering.com

Ferraz Shawmut is committed to the introduction of new and innovativeproducts. Products that are focused at the end-user, providing the end-userwith time and cost savings, and optimal protection. The Drive ProtectionModule combines Ferraz Shawmut manufactured components applied inthe power wiring installation stage.

CodesNEC and UL Standards define

required drive installation methods.

Drive Manufacturer’s are leaving

the responsiblity of meeting these

installation standards and drive

protection in the hands of the installer.

NEC – Article 409New in 2005!

Industrial Control Panels409.1 Scope. This article coversindustrial control panels intended forgeneral use and operating at 600volts or less.

FPN: UL 508A is a safety standardfor industrial control panels.

409.110 Marking. An industrialcontrol panel shall be marked withthe following information that isplainly visible after installation:(3) Short circuit current rating ofthe industrial control panel based onone of the following:A. Short circuit current rating of alisted and labeled assemblyB. Short circuit current rating estab-lished utilizing an approved methodFPN: UL 508A-2001, Supplement SB,is an example of an approvedmethod.

Meaning: This ties UL 508A and itssupplements into the NEC and thesubsequent SCCR ratings for panels.

UL 508A

SB5.1.1 Effective April 25, 2006, UL508A approved panels will berequired to include on its nameplaterating of industrial control panels itsShort Circuit Current Rating (SCCR)

Determination of a panel’s SCCR rat-ing is achieved by listing all of theindividual component’s ratings andselecting the lowest value. Valuesnot listed on a component defer toassumed values defined in TableSB4.1.

Table SB4.2 defines peak letthrough currents, Ip, and clearing ,I2t, for Class CC, G, J, T, L, RK1 andRK5 fuses at 50, 100 and 200kA.

Key is using Class J fusible discon-nect switches and J fuses in feederand branch circuits in panels makingit easier to achieve 50, 100 or200kA ratings

1. AC Drive manufacturersdo not provide line sidebranch circuit or shortcircuit fuses. With bothtypes of protectionrequired, the HSJ has pro-vided an improved solutionto fusing drives.

2. The drive manufacturers do not providea disconnecting means.

3. In the case ofover-voltage, drivesare being protectedby very low qualitysurge devices.

4. High short circuit current ratings onpanels are not being addressed.

1Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.stevenengineering.com

The Drive Protection Module reducestotal cost, time and money!

With a standard DPMCustomer Needs:• Fuses• DPM

Without a standard DPMCustomer Needs:• Fuses• Disconnecting Means• Surge Protection

Device• Terminal Blocks• Grounding Terminals• Enclosure• Wire• Hardware• Complete Engineering

Design• Support

Documentation

HSJ Fusing:combining the following features:

• Semiconductor protection (very low I2t)• Compliance to NEC

(branch circuit protection)• Ultrasafe fuse holders are UL approved,

IP20/touch safe holders for class J fuses.

FSPDB:UL approved IP20/touch safe power dis-tribution block. Makes for easy wire management when working on live equipment.

UL98 Load break disconnect switch:with options to meet NFPA79 requirements with defeatable handle for maintenance requirements.

Surge-Trap: the most advanced DIN rail Surge Suppression on the market. Surge-Trap does not requireadditional fuses while meeting the latest revisions of UL 1449 2nd Edition.

Benefits• Latest safety design and electrical code requirements:

- NEC 409

- UL 508A

- NFPA 79 disconnect switch options

• High-speed branch circuit fusing (Type HSJ)

• Transient voltage surge protection

• High short circuit current rating up to 100kA

• Pre-designed package, per major drive mfrs.

• IP20/touch safe products for added safety to

personnel

• Easy installation and cost savings

• Available options for custom drive requirements

• 3-5 day lead-time for standard models

Available on backplaneonly or with enclosure.

2Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.stevenengineering.com

DPM 3J 480 Y 4X SS

3J

6J

120

208

240

480

600

P

Y

D

112

3R

4

4X

NM

SS

max

fuse

rati

ng

volt

age

rati

ng conf

igur

atio

n

NEM

Aen

clos

ure

rati

ng

encl

osur

eop

tion

class J 30A max

class J 60A maxsingle

wye

delta

1 or 12 non-metallic

stainless steel

BACKPLANE ONLY WITH ENCLOSURE

DPM Product Coding

Product RangeAddressable Applications: AC Drives -

• HP Ratings: 1 to 30 Hp (higher ratings optional)• Voltage Ratings: 120V - 1ph to 600V - 3ph• SCCR: up to 100kA

DPM & FuseSelection ProcessSTEP 1 - Select your drive manufacturer make, drive part number and HP rating.STEP 2 - Select drive protection fusing from the last column of the drive manufacturers selection table.STEP 3 - Select DPM current rating from the table provided:

STEP 4 - Select system voltage & wiring configuration from page 5 diagrams.STEP 5 - Select DPM mounting method: Enclosure or Backplane only.

EXAMPLE:STEP 1 - Select your drive manufacturer make, drive part number and HP rating.

ABB, ACS series, ACS550-U1-044A-4 which is a 30HP drive.STEP 2 - Select drive protection fusing from the last column of the drive manufacturers selection table.

HSJ60 from the fuse selection column of the ABB table off the Ferraz Shawmut website.STEP 3 - Select DPM current rating from the table provided.

HSJ60 corresponds to the 35A thru 60A selection which points to the 6J DPM current rating.STEP 4 - Select system voltage & wiring configuration from page 5 diagrams.

From the wiring diagrams my system is a 3 phase, 480 volts, Wye connected, (schematic C)STEP 5 - Select DPM mounting method: Enclosure or Backplane only.

Need it in enclosure with a NEMA 4X rating in stainless steel.A) If in enclosure - Choose required NEMA rating and enclosure material.B) If backplane only - Reference switch section of Ferraz Shawmut product Advisor

or website for proper handle and shaft length selection.DPM part number from selection table:

Enclosed DPM, 60A current rating, 480V, 3ph Wye connection, 4X, stainless boxPart Number: DPM6J480Y4XSS

Selected Fuse Ampere Rating1A thru 30A

35A thru 60A

DPM Current Rating3J6J

3Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.stevenengineering.com

The DPM is designed with standard necessities in mind. We understandthat our customers will want to add different features. Below is a list of some of our offerings:

High Speed Fuses - round or square body

Flange Mounted Handle

Control Transformer

RFI/Chokes/Filters

Auxiliary Contacts

Overload Relays

Motor Heaters

Line-Reactors

Heat Sinks

Contactors

Fans

Special applications require special needs. Ferraz Shawmut is ready to service you. Contact technical services for more information.

Options

Standard DPM Data

*Note: 1 = L-N/L-G Only2 = L-L/L-N/L-G/N-G3 = L-L Only

4Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.stevenengineering.com

Schematics

Drive

G

N

M

DPM:<=30A – 3Ph Wye

Drive

G

N

M

DPM:>30A – 3Ph Wye

Drive

G

M

DPM: Single Phase

Drive

G

M

DPM:<=30A – 3Ph Delta

Drive

G

M

DPM:>30A – 3Ph Delta

(C) GREATER THAN 30A - 3-PHASE - WYE

(E) MAXIMUM 30A - SINGLE PHASE

(B) MAXIMUM 30A - 3-PHASE - DELTA

(D) GREATER THAN 30A - 3-PHASE - DELTA

(A) MAXIMUM 30A - 3-PHASE - WYE

5Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.stevenengineering.com

W

X

W

X

YH Y H

D

BACKPLANE(NON-ENCLOSED)

ENCLOSED

Dimensions

For more innovative products and information, visit ferrazshawmut.com

• When specifying backplane only, see www.ferrazshawmut.com/oem for switch shaft and handle options.

• 30A backplane uses switch catalog #SCV30

• 60A backplane uses switch catalog #FBJ60

6Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.stevenengineering.com

North American HeadquartersFerraz Shawmut374 Merrimac StreetNewburyport, MA 01950-1998Phone: 978-462-6662Fax: 978-462-0181

E-mail: info@ferrazshawmut.comferrazshawmut.com

Global HeadquartersFerraz Shawmut1,rue Jean NovelF-69100 VilleurbanneFrancePhone: +33 (0)4 72 22 66 11Fax: +33 (0)4 72 22 67 13

Ferraz Shawmut Canada88 Horner AvenueToronto, Ontario, Canada M8Z 5Y3Phone: 416-252-9371Toll-Free Phone: 800-267-8727Fax: 416-252-6572Toll-Free Fax: 800-387-3329

Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.stevenengineering.com