KRAUS & NAIMER | L400 - Electrical Data | 5.11.2004 |
Approved | Confirms to requirements | No listing required |
CSA, CUL, CULUS, UL | BS EN, CH, GOST, IEC, VDE | D, FI, N, ÖVE, S |
Rated Operational Voltage Ue | 690V | 1) | ||
Rated Insulation Voltage Ui | 690V | 1) | ||
Rated Thermal Current Iu/Ith | 500/500A (Ambient temperature 35°C during 24 hours with peaks up to 40°C / Ambient temperature 55°C during 24 hours with peaks up to 60°C) | 2) | ||
Rated Operational Current Ie | ||||
AC-20A No-load operation |
|
500A | 2) | |
AC-20B Occasional switching under load cos Phi 0,8 3 phase, 3 pole and 1 phase, 2 pole |
|
500A | 2) | |
|
450A | 2) | ||
|
350A | 2) | ||
AC-21B Occasional switching of resistive loads, including moderate overloads 3 phase, 3 pole and 1 phase, 2 pole |
|
450A | 2) | |
|
400A | 2) | ||
|
300A | 2) | ||
Rated Utilization Category | ||||
AC-23B Occasional switching of motors or other high inductive loads 3 phase, 3 pole |
|
75kW | 2) | |
|
132kW | 2) | ||
|
132kW | 2) | ||
|
65kW | 2) |
Rated Voltage | 600V | 1) | |
Rated Insulation Voltage Ui | 600V | 1) | |
Rated Thermal Current | 400A | 1) | |
Interrupting Rating |
|
300A | 1) |
Minimum Voltage | 20V | |||
Rated Impulse Withstand Voltage Uimp | 6kV | 1) | ||
Short Circuit Protection | ||||
Max. fuse size (aR-characteristic) | 500A | |||
Rated short-time withstand current (1s-current) | On request | |||
Ambient Temperature of Stages (for switches with electro-mechanical accessories refer to optional extra) | ||||
open at 100% Iu/Ith | 55°C during 24 hours with peaks up to 60°C; Permissible load see Rated Thermal Current | |||
Terminal lead material | copper wires only | |||
For connections with cable terminal or copper busbar | ||||
Connecting screw | M12 | |||
Length of connecting screw | 30mm |
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