Designed to comply with ANSI/ASMEA17.1, NFPA 72 and NEC® requirements

for elevator shutdown and elevator disconnecting means.

Cooper BussmannP.O. Box 14460St. Louis, MO 63178-4460USA

Telephone: 636-394-2877Fax: 800-544-2570International: 636-527-1413www.bussmann.com

For a comprehensive understanding of the 2002 code changes andhow they affect disconnects and other circuit protection topics,please browse the Online Training section at Bussmann.com. 10-02-25M

reorder # 3008

Meets Or Exceeds Applicable Standards:Underwriters Laboratories NFPA 72-National Fire Alarm Code® ANSI/ASME A17.1 NEC• UL50 - Enclosures • 3-9.2.1 • Fire Safety Shutdown • 620.51 (A-C)• UL98 - Enclosed Switches • 3-9.4.4 • 620.62

• 620.91(C)

UL Listed Shunt TripAttachmentStandard on the 30 through400 amp PS. All Switches600 Volt Rated.

Safety FeaturesA cover interlock prevents the doorfrom opening while the circuit isenergized. The interlock can be over-ridden to permit testing or inspectionwith the switch in the ON position.

Handle Lock-OffThe rotary handle of the Cooper Bussmann® POWER MODULE™ can be locked in the“OFF” position with as many as three padlocks. When properly “locked-out,” personnel areassured that load side power is de-energized.

Visible BladesNo more guesswork about whetherthe switch is ON or OFF. Withone glance, you can see that thecircuit is open.

Electrically Welded ConnectionsStrong welded internal connections provide low resistanceand low heat loss, while alsoensuring long service life.

Control Power and InterfacingRelay Scheme OptionsAvailable for fire safety and othercritical performance needs.

High Pressure Fuse HoldersA high-tension spring appliespressure to both arms of theswitch’s integrated fuse holdersto provide consistent contactand reduce resistance.

EnclosureNEMA 1 Oversized StandardOptional:NEMA 3RNEMA 12NEMA 4

Available in switch combinations from 30-400 amps. All with shunt trip capabilities from a 120 volt control circuit.

Silver Alloy ContactsDurable silver tungsten alloy contacts stand up to use, whileproviding superior conductivity.(inside cannot see).

Class J Fuse Clips are StandardProvides 200,000 RMSsymmetrical amp faultinterruption with theindustry’s ultimate protection for sensitivedownstream components.

For more information: www.bussmann.com/products/powermod e-mail: powermodule@buss.com

Power Module Switch (PS) >

Power Module Panel (PMP) >

Designing, building, and inspecting shunt trip disconnect capabilities into elevator power systems can be complex

enough. Factor in the need for compliance with the NEC®, ANSI/ASME A17.1, and NFPA 72 and it can be

downright confusing. Now there’s a simple and economical solution that comes in one easy-to-install package.

The POWER MODULE™ from Cooper Bussmann complies with all code requirements by providing: In the NEC®, 620.62 states: “Wheremore than one driving machine discon-necting means is supplied by a singlefeeder, the overcurrent protectivedevices in each disconnecting meansshall be selectively coordinated withany other supply side overcurrent protective devices.” This wording isunprecedented in the NEC® in thatabsolute selective coordination is indeedrequired. With a selectively coordinatedsystem, only the overcurrent protectivedevice nearest the fault current will open,thereby isolating the faulted circuit.

For example, in the diagram at right,suppose a fault were to occur at EL-1.For this system to be selectively coordi-nated, the 100A Branch OCPD will bethe only device to open and isolate thefault. If the system is uncoordinated, the200A Feeder could open as well, causingpower to be lost to the remaining elevators, EL-2 and EL-3. A largeenough fault current could cause the400A Feeder OCPD and the 1600AMain OCPD to open as well, therebyresulting in a total system blackout.

The advantage of the POWERMODULETM is that it utilizes Bussmann®

LOW-PEAK® solid-state circuit inter-rupting LPJ-(amp)SP fuses. Bussmann®

LOW-PEAK® fuses can be selectivelycoordinated easily using a 2:1 line-sideto load-side fuse ratio between any otherLOW-PEAK® solid state circuit interrupting fuse.

Utility Transformer

1600A Main�OCPD

400A Feeder�OCPD

Open

200A Feeder�OCPD

100A Branch�OCPD

M

C�

D

B�

A�

EL-2 EL-3EL-1

M M

Closed

Utility Transformer

1600A Main�OCPD

400A Feeder�OCPD

Open

200A Feeder�OCPD

100A Branch�OCPD

M

C

D

B

A

EL-2 EL-3EL-1

M M

Unnecessary�Outage

Closed

Disconnecting Means Requirement Code and StandardElevator Shutdown ANSI/ASME A17.1

Rule 102.2(c)(3)Shunt Trip Voltage Monitoring NFPA 72-1999 3-9.4.4Integrity Monitoring NFPA 72-1999 3-9.2.1Allows Elevator Shutdown NEC® 620.51Selective Coordination NEC® 620.62Auxiliary Contact (Hydraulic Elev) NEC® 620.91(C)Orderly Shutdown NEC® 240.12

These features make the Cooper

Bussmann POWER MODULE ™ the best

choice for a design engineer or

electrical contractor who needs to

meet the following codes, standards,

and end-user requirements:

POWER MODULETM Offers Selective Coordination ForElevator Circuits: A Code And End User Requirement.

The Bussmann® POWER MODULE™ meets the needs of today’s elevator power systems and

maintains the system’s integrity by providing modern solid-state LOW-PEAK® fuse performance.

Fuses require no maintenance and no periodic testing for calibration. This means no deterioration

from mechanical linkage and electronic aging associated with electromechanical overcurrent devices

with limited useful life expectancy. LOW-PEAK® fuses make it possible to retain system selective

coordination, current limitation, and component protection without costly maintenance and/or

calibration for the life of the power system.

SELECTIVELY COORDINATED UNCOORDINATED

In order to provide a SELECTIVELY COORDINATED system, a design engineer must specify main, feeder, sub-feeder,and branch circuit protective devices that are selectively coordinated for all values of overloads and short-circuits.

1600A ICCB

200A MCCB

400A MCCB

BLACKOUT(TOTAL)

100A MCCB

BLACKOUT(PARTIAL)

CURRENT IN AMPERES

1,000800600

400300

200

1008060

4030

20

1086

43

2

1.8.6

.4

.3

.2

.1.08.06

.04

.03

.02

.01

TIM

E IN

SE

CO

ND

S

100,

000

80,0

0060

,000

40,0

00

30,0

00

20,0

00

10,0

008,

000

6,00

0

4,00

0

3,00

0

2,00

0

1,00

080

060

0

400

300

200

100

TIM

E IN

SE

CO

ND

S

1,000800

600

400300

200

1008060

40

30

20

1086

43

2

1.8.6

.4

.3

.2

.1.08.06

.04

.03

.02

.01

CURRENT IN AMPERES

100,

000

80,0

0060

,000

10,0

00

40,0

0030

,000

20,0

00

8,00

06,

000

4,00

0

3,00

0

2,00

0

1,00

080

060

0

400

300

200

100

LPS-RK-200SP

LPS-RK-400SP

KRP-C-1600SP

LPJ-100SP

Shunt Trip Capability

Selective Coordination

Fire Safety Signal Interface

Shunt Trip Voltage Monitoring

120V Shunt Trip control power via CPT

Component Protection via LOW-PEAK®

LPJ-(amp) SP Fuses

UL 98 Listed for 200kA Short Circuit Current Rating

Lockable in the open position with three lock capability

Key-Test Switch and Pilot Light for ease of inspection

No annual calibration or testing of overcurrent protection required

Designing, building, and inspecting shunt trip disconnect capabilities into elevator power systems can be complex

enough. Factor in the need for compliance with the NEC®, ANSI/ASME A17.1, and NFPA 72 and it can be

downright confusing. Now there’s a simple and economical solution that comes in one easy-to-install package.

The POWER MODULE™ from Cooper Bussmann complies with all code requirements by providing: In the NEC®, 620.62 states: “Wheremore than one driving machine discon-necting means is supplied by a singlefeeder, the overcurrent protectivedevices in each disconnecting meansshall be selectively coordinated withany other supply side overcurrent protective devices.” This wording isunprecedented in the NEC® in thatabsolute selective coordination is indeedrequired. With a selectively coordinatedsystem, only the overcurrent protectivedevice nearest the fault current will open,thereby isolating the faulted circuit.

For example, in the diagram at right,suppose a fault were to occur at EL-1.For this system to be selectively coordi-nated, the 100A Branch OCPD will bethe only device to open and isolate thefault. If the system is uncoordinated, the200A Feeder could open as well, causingpower to be lost to the remaining elevators, EL-2 and EL-3. A largeenough fault current could cause the400A Feeder OCPD and the 1600AMain OCPD to open as well, therebyresulting in a total system blackout.

The advantage of the POWERMODULETM is that it utilizes Bussmann®

LOW-PEAK® solid-state circuit inter-rupting LPJ-(amp)SP fuses. Bussmann®

LOW-PEAK® fuses can be selectivelycoordinated easily using a 2:1 line-sideto load-side fuse ratio between any otherLOW-PEAK® solid state circuit interrupting fuse.

Utility Transformer

1600A Main�OCPD

400A Feeder�OCPD

Open

200A Feeder�OCPD

100A Branch�OCPD

M

C�

D

B�

A�

EL-2 EL-3EL-1

M M

Closed

Utility Transformer

1600A Main�OCPD

400A Feeder�OCPD

Open

200A Feeder�OCPD

100A Branch�OCPD

M

C

D

B

A

EL-2 EL-3EL-1

M M

Unnecessary�Outage

Closed

Disconnecting Means Requirement Code and StandardElevator Shutdown ANSI/ASME A17.1

Rule 102.2(c)(3)Shunt Trip Voltage Monitoring NFPA 72-1999 3-9.4.4Integrity Monitoring NFPA 72-1999 3-9.2.1Allows Elevator Shutdown NEC® 620.51Selective Coordination NEC® 620.62Auxiliary Contact (Hydraulic Elev) NEC® 620.91(C)Orderly Shutdown NEC® 240.12

These features make the Cooper

Bussmann POWER MODULE ™ the best

choice for a design engineer or

electrical contractor who needs to

meet the following codes, standards,

and end-user requirements:

POWER MODULETM Offers Selective Coordination ForElevator Circuits: A Code And End User Requirement.

The Bussmann® POWER MODULE™ meets the needs of today’s elevator power systems and

maintains the system’s integrity by providing modern solid-state LOW-PEAK® fuse performance.

Fuses require no maintenance and no periodic testing for calibration. This means no deterioration

from mechanical linkage and electronic aging associated with electromechanical overcurrent devices

with limited useful life expectancy. LOW-PEAK® fuses make it possible to retain system selective

coordination, current limitation, and component protection without costly maintenance and/or

calibration for the life of the power system.

SELECTIVELY COORDINATED UNCOORDINATED

In order to provide a SELECTIVELY COORDINATED system, a design engineer must specify main, feeder, sub-feeder,and branch circuit protective devices that are selectively coordinated for all values of overloads and short-circuits.

1600A ICCB

200A MCCB

400A MCCB

BLACKOUT(TOTAL)

100A MCCB

BLACKOUT(PARTIAL)

CURRENT IN AMPERES

1,000800600

400300

200

1008060

4030

20

1086

43

2

1.8.6

.4

.3

.2

.1.08.06

.04

.03

.02

.01

TIM

E IN

SE

CO

ND

S

100,

000

80,0

0060

,000

40,0

00

30,0

00

20,0

00

10,0

008,

000

6,00

0

4,00

0

3,00

0

2,00

0

1,00

080

060

0

400

300

200

100

TIM

E IN

SE

CO

ND

S

1,000800

600

400300

200

1008060

40

30

20

1086

43

2

1.8.6

.4

.3

.2

.1.08.06

.04

.03

.02

.01

CURRENT IN AMPERES

100,

000

80,0

0060

,000

10,0

00

40,0

0030

,000

20,0

00

8,00

06,

000

4,00

0

3,00

0

2,00

0

1,00

080

060

0

400

300

200

100

LPS-RK-200SP

LPS-RK-400SP

KRP-C-1600SP

LPJ-100SP

Shunt Trip Capability

Selective Coordination

Fire Safety Signal Interface

Shunt Trip Voltage Monitoring

120V Shunt Trip control power via CPT

Component Protection via LOW-PEAK®

LPJ-(amp) SP Fuses

UL 98 Listed for 200kA Short Circuit Current Rating

Lockable in the open position with three lock capability

Key-Test Switch and Pilot Light for ease of inspection

No annual calibration or testing of overcurrent protection required

Designed to comply with ANSI/ASMEA17.1, NFPA 72 and NEC® requirements

for elevator shutdown and elevator disconnecting means.

Cooper BussmannP.O. Box 14460St. Louis, MO 63178-4460USA

Telephone: 636-394-2877Fax: 800-544-2570International: 636-527-1413www.bussmann.com

For a comprehensive understanding of the 2002 code changes andhow they affect disconnects and other circuit protection topics,please browse the Online Training section at Bussmann.com. 10-02-25M

reorder # 3008

Meets Or Exceeds Applicable Standards:Underwriters Laboratories NFPA 72-National Fire Alarm Code® ANSI/ASME A17.1 NEC• UL50 - Enclosures • 3-9.2.1 • Fire Safety Shutdown • 620.51 (A-C)• UL98 - Enclosed Switches • 3-9.4.4 • 620.62

• 620.91(C)

UL Listed Shunt TripAttachmentStandard on the 30 through400 amp PS. All Switches600 Volt Rated.

Safety FeaturesA cover interlock prevents the doorfrom opening while the circuit isenergized. The interlock can be over-ridden to permit testing or inspectionwith the switch in the ON position.

Handle Lock-OffThe rotary handle of the Cooper Bussmann® POWER MODULE™ can be locked in the“OFF” position with as many as three padlocks. When properly “locked-out,” personnel areassured that load side power is de-energized.

Visible BladesNo more guesswork about whetherthe switch is ON or OFF. Withone glance, you can see that thecircuit is open.

Electrically Welded ConnectionsStrong welded internal connections provide low resistanceand low heat loss, while alsoensuring long service life.

Control Power and InterfacingRelay Scheme OptionsAvailable for fire safety and othercritical performance needs.

High Pressure Fuse HoldersA high-tension spring appliespressure to both arms of theswitch’s integrated fuse holdersto provide consistent contactand reduce resistance.

EnclosureNEMA 1 Oversized StandardOptional:NEMA 3RNEMA 12NEMA 4

Available in switch combinations from 30-400 amps. All with shunt trip capabilities from a 120 volt control circuit.

Silver Alloy ContactsDurable silver tungsten alloy contacts stand up to use, whileproviding superior conductivity.(inside cannot see).

Class J Fuse Clips are StandardProvides 200,000 RMSsymmetrical amp faultinterruption with theindustry’s ultimate protection for sensitivedownstream components.

For more information: www.bussmann.com/products/powermod e-mail: powermodule@buss.com

Power Module Switch (PS) >

Power Module Panel (PMP) >