Littelfuse PPI-600V User Manual

3714 Kinnear Place Saskatoon, Saskatchewan Canada S7P 0A6 Ph: [phone] Fx: [phone] www.startco.ca

PPI-600V

PARALLEL PATH ISOLATOR

OCTOBER 13, 2011

REVISION 0

The PPI-600V is a ground-wire device that allows a trailing-cable ground to be monitored independently
of the parallel ground path created when trailing-cable-fed equipment is in contact with the earth. It also
allows a trailing-cable ground to be monitored in the presence of stray dc and it prevents inter-machine
arcing caused by the voltages induced in the cables.

PPI-600V Parallel Path Isolator Rev. 0

TYPICAL APPLICATION

GROUND CHECK MONITOR
SE134C, SE-135, SE-105 OR SE-125

INCOMING
GROUND CHECK

GC

INCOMING
GROUND

GROUND-CHECK

TERMINATION

G

INCOMING

CHASSIS GROUND BUS

CABLE

GROUND

G

CABLE

GROUND

GC

PPI-600V

NOTES:

1. PARALLEL PATH ISOLATOR IS NOT POLARIZED.
EITHER FLANGE CAN BE CONNECTED TO CHASSIS.

2. THE OUTGOING GROUND MUST BE ISOLATED FROM THE
CHASSIS GROUND BUS. IF A FLANGE-MOUNTED RECEPTACLE
IS USED, VERIFY THAT THE FLANGE IS ISOLATED FROM THE
GROUND PIN, AND

- USE A MATING PLUG WITH A NON-METALLIC HOUSING, OR

- ISOLATE THE FLANGE FROM THE CHASSIS IF THE MATING
PLUG HAS A METALLIC HOUSING.

3. CABLE PLUGS AND RECEPTACLES WITH GROUNDED METAL
HOUSINGS MUST BE ISOLATED FROM EARTH TO PREVENT
PARALLEL GROUND PATHS.

4. FOR SYSTEMS ABOVE 600 VAC, CONNECT A V131DA40 MOV ACROSS
THE PPI-60 0V.

GC

G

OUTGOING
GROUND CHECK

OUTGOING
GROUND

TECHNICAL SPECIFICATIONS

Dimensions:

Height ......................................... 102 mm (4.0”)

Width .......................................... 235 mm (9.3”)

Depth .......................................... 64 mm (2.5”)

Shipping Weight ........................ 11.5 lb (5.5 kg)

Off-State Resistance .................. >20 kΩ @ 125°C

and V < 10.0 V

On-State Voltage ....................... < 2 V @ 25°C

and I<2000 A

Minimum Trigger Voltage ........ 20 V

Maximum Trigger Voltage ....... 25 V

Clamp Rating:

1 Cycle .................................. 15 kA

10 second .............................. 2.5 kA

Failure Mode .............................. Short Circuit

DISCLAIMER

Specifications are subject to change without notice.
Littelfuse Startco is not liable for contingent or
consequential damages, or for expenses sustained as a result
of incorrect application, incorrect adjustment, or a
malfunction.

OUTGOING
GROUND CHECK
TERMINATION

Oct. 13, 2011 PPI-600V Parallel Path Isolator Datasheet