85
TemBreak
PRO
P_SE-UM-001-EN
– V1.2.0
OCR Power Supply
The P_SE OCR requires auxiliary power supply to operate and provide measurement, alarm, and configured protection functions.
Auxiliary power to the OCR is self-powered whilst sufficient current is flowing through the MCCB, but can also be supplied via external 24V dc power supply
for uninterrupted functionality.
Self-power requirements
Minimum conditions for energizing the trip unit without an external power supply:
-
Circuit breaker closed
-
Minimum current through the circuit breaker; below is a table per rating
Trip unit rating
1 Pole fed
2 Poles fed
3 Poles fed
40A
─
> 14A
> 10A
100A
> 25A
> 15A
> 15A
160A
> 32A
> 16A
> 16A
250A
> 50A
> 25A
> 25A
400A
> 80A
> 40A
> 40A
630A
> 126A
> 63A
> 63A
External 24V dc supply requirements
An external 24 Vdc supply may be used for uninterrupted functionality of the OCR whilst the MCCB contacts are open, or where there is insufficient current
to provide the minimum requirements for self-power.
The external 24V dc power supply must be capable of delivering the necessary maximum current of the OCR and any connected accessories.
Trip unit / accessories
Current consumption @ 24V dc nominal
P_SE OCR
60 mA
TPED
85 mA
TPCM
40 mA
The external 24 Vdc supply is connected to the circuit breaker in two ways:
-
Direct connection to MCCB with via CIP adapter cable TPPHQTT140H (P160 / P250), or TPPHQTT160H (P400 / P630)
-
Connection via the TPCM provided power supply.
Notice
: 40A trip unit with 1 Pole feed, will still provide INST protection for I > 2x I
n
(>80A).
Summary of Contents for Terasaki TemBreak PRO P SE Series
Page 106: ...106 TemBreak PRO P_SE UM 001 EN V1 2 0 Annex A Dimensions P160 Dimensions...
Page 107: ...Annex A Dimensions 107 TemBreak PRO P_SE UM 001 EN V1 2 0 P250 Dimensions...
Page 108: ...Annex A Dimensions 108 TemBreak PRO P_SE UM 001 EN V1 2 0 P400 Dimensions...
Page 109: ...Annex A Dimensions 109 TemBreak PRO P_SE UM 001 EN V1 2 0 P630 Dimensions...
Page 111: ...111 TemBreak PRO P_SE UM 001 EN V1 2 0 Annex C I2t Let Through Curves P160_SE...
Page 112: ...Annex C I2t Let Through Curves 112 TemBreak PRO P_SE UM 001 EN V1 2 0 P250_SE...
Page 113: ...Annex C I2t Let Through Curves 113 TemBreak PRO P_SE UM 001 EN V1 2 0 P400_SE...
Page 114: ...Annex C I2t Let Through Curves 114 TemBreak PRO P_SE UM 001 EN V1 2 0 P630_SE...
Page 115: ...115 TemBreak PRO P_SE UM 001 EN V1 2 0 Annex D Peak Let Through Curves P160_SE...
Page 116: ...116 TemBreak PRO P_SE UM 001 EN V1 2 0 P250_SE...
Page 117: ...117 TemBreak PRO P_SE UM 001 EN V1 2 0 P400_SE...
Page 118: ...118 TemBreak PRO P_SE UM 001 EN V1 2 0 P630_SE...
Page 121: ...121 TemBreak PRO P_SE UM 001 EN V1 2 0 This page is intentionally left blank...