Cooper Bussmann Power Module PS User Manual
8-29-01
XXXXXX
Bussmann®Power Module
™
Switch PS
All-In-One Module
Form No. PS
Page 1 of 5
BIF Doc# 1145
Bussmann® Power Module™ Switch
Standard Features:
• 30-400 amp 600 Vac 3p Fused Power Switch
• 200,000 amp RMS Short-Circuit Current Rating
• Shunt trip 120V
• Control power terminal block
• Ground lug per NEC
• Class J fuse mounting only
1
Optional Features:
• Control power transformer with fuses and blocks
• Fire safety interface relay
• Key to test switch
• Pilot light – “ON”
• Isolated neutral lug
2
• Mechanically interlocked auxiliary contact for hydraulic
elevators with battery backup (5 amp 120 Vac rated)
• Fire Alarm Voltage Monitoring Relay (To monitor Shunt Trip
Voltage)
• NEMA 3R, 4, and 12 enclosures available
3
• Phase failure and undervoltage relay available, consult
factory
• For added protection, use the Bussmann SAMI fuse
covers to improve maintenance personnel protection
4
(OSHA 1910.333, paragraph C)
Agency Information:
U.L. 98 Enclosed and Dead Front Switch
Guide 96NK3917, File E182262
NEMA 1, U.L. 50, listed enclosure
cU.L. per Canadian Standards C22.2, No. 0-M91-CAN/CSA
C22.2, No. 4-M89 Enclosed Switch
Power Module™ Switch
Rating (Amps) Power Module Switch Catalog No.
30 PS3
60 PS6
100 PS1
200 PS2
400 PS4
Optional Accessories
1
Catalog
Rating Number
Option 1
Control Power Transformer 208V T20
(CPT) Std. 100VA with PRI & 240V T24
SEC Fuse (120V Secondary) 480V T48
600V T60
Option 2
Fire Safety Interface 24 Vdc Coil R2
Relay (3PDT, 10 amp, 120V) 120 Vac Coil R1
Option 3
Key to Test Switch 120V K
Option 4
Pilot Light – “ON” Red R
Green G
White W
Option 5
Isolated Neutral Lug 30-60A N6
(Full Capacity)
2
100A N1
200A N2
400A N4
Option 6
Mechanically interlocked auxiliary contact 1 NO & 1 NC A
for hydraulic elevators with automatic
recall (5 amp 120 Vac rated)
Option 7
Fire Alarm Voltage Monitoring Relay Single-Pole F1
(To monitor Shunt Trip Voltage) Three-Pole F3
Option 8
Optional Enclosure NEMA 3R U
NEMA 4 Y
NEMA 12 Z
Catalog No. Construction: Catalog number of PS Switch
Options as required in option order as listed above
(i.e. option 1, 2, 3, etc.)
Example: • 100A S.T. Switch 480V-3P – PS1
• 480–120V CPT – T48
• 120 Vac Coil Fire Safety Interface Relay – R1
• Pilot Light - “ON” (Green) – G
• Mech. Interlock (1 NO & 1 NC) – A
Catalog Number PS1T48R1GA
1
Class J fuses not included.
2
Oversized 200% rated neutral option available where required by excessive
non-linear loads.
3
Through 200A.
4
Through 100A.
5
Options 1,2,& 6 are standard for elevator circuits.
Bussmann
®
How to configure Part Numbers:
Step 1: Select Switch Amperage
1
Step 2: Select Options Needed
5
Bussmann®Power Module
™
Switch PS
All-In-One Module
Form No. PS
Page 2 of 5
BIF Doc# 1145
Standard Shunt Trip Ratings
Amp Max Max
1
Momentary
Rating Voltage Inrush Ontime Inrush
30-100
200 120V, 60HZ 4 amps 1.5 cycles 140VA
400
Bussmann®Power Module™ Switch – Dimensions and Lug Data
Catalog NEMA 1 NEMA Depth
Number Amp Dimensions
1
Depth 3R, 12
2
3R,12 Lug Size
3
PS3 30 20∑H ≈ 16∑W 8fiΩ•∑ 20∑H ≈ 20∑W 8∑ #14 - #8 Al or Cu
PS6 60 20∑H ≈ 16∑W 8fiΩ•∑ 20∑H ≈ 20∑W 8∑ #14 - #2 Al or Cu
PS1 100 20∑H ≈ 16∑W 8fiΩ•∑ 20∑H ≈ 20∑W 8∑ #8 - 1/0 Al or Cu
PS2 200 30∑H ≈ 20∑W 8fiΩ•∑ 30∑H ≈ 24∑W 8∑ #6 - 250 kcmil Al or Cu
PS4 400 55∑H ≈ 40∑W 13∑ — — (2) 3/0 - 500 kcmil Al or Cu
1
Standard over size enclosure to mount control power transformer fire safety interface relay and control terminal blocks.
2
Contact factory for dimensions for NEMA 4 enclosure.
3
Optional neutral lug size same as line and load.
Maximum Horsepower Rating of Switch – Sizing Based on Motor Type
Amp Rating of Switch
30A 60A 100A 200A 400A
PS3 PS6 PS1 PS2 PS4
Voltage A B C A B C A B C A B C A B C
208AC-3P 5 5 3 10 10 10 20 15 15 40 40 30 75 75 60
240AC-3P 5 5 5 10 10 10 20 20 15 50 40 30 125 75 75
480AC-3P 10 10 10 30 25 20 50 40 30 100 75 75 250 150 150
600AC-3P 15 15 10 30 30 25 60 50 40 125 100 100 250 200 200
Column Sizing Guidelines:
A Maximum horsepower rating of switch with Class J fuses, light-duty inrush
B Maximum horsepower rating of switch with Class J fuses, medium-duty inrush
C Maximum horsepower rating of switch with Class J fuses, heavy-duty or typical elevator cross line start
The above table can be used for estimating switch size for motor loads based upon the motor horsepower. Size the switch so that
the Class J, time-delay fuses are used at a minimum of 150% of motor full load amps or next size up (for light starting duty
applications, Column A). For general applications, excluding wound rotor and DC motors, NEC
®
430-52 allows sizing at 175%
of motor full load amps or the next standard size per NEC 240-6 (Column B). If sizing at 175% will not allow the motor to start,
NEC 430-52 will allow the fuses to be sized up to 225% of motor full load amps or the next size down (Column C).
Note: In sizing the fuses, the motor FLA, is per Table 430-150, not per nameplate information.
Inrush currents of motors may vary, consult motor manufacturer data for correct sizing.
On elevator applications, motor load plus auxiliary loads need to be considered. Follow elevator manufacturer’s
recommendation for correct fuse sizing. For estimation purposes only, Column C can be used as a conservative
approximation.
Bussmann
®
8-29-01
XXXXXX
1
Will handle up to 447VA inrush.
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