Pre-Fuses; Mains Connection; Motor Connection - Danfoss VLT 2800 Design Manual

Installation

3.4.2 Pre-fuses

For all unit types, fit external pre-fuses in the mains supply to the frequency converter. For UL/cUL applications with a mains
voltage of 200-240 V, use pre-fuses type Bussmann KTN-R (200-240 V) or Ferraz Shawmut type ATMR (max. 30A). For UL/cUL
applications with a mains voltage of 380-480 V, use pre-fuses type Bussmann KTS-R (380-480 V).
3 3
Alternative fuses 380-500 V drives
VLT 2800 Bussman
E52273
RK1/JDDZ
2805- KTS-R20
2822
2855- KTS-R25
2875
2880- KTS-R50
2882
Alternative Fuses 200-240 V drives
VLT 2800 Bussman
E52273
RK1/JDDZ
2803-2822 KTN-R20
2840 KTN-R25
Table 3.2 Prefuses for UL application /cUL

3.4.3 Mains Connection

WARNING
At 1x220-240 V the neutral wire must be attached to
terminal N
(L2)
terminal L1
(L1)
No. N L1
(L2)
N
No. 95
Table 3.3 Mains Connection - 1x220-240 V
No. N L1
(L2)
L2
No. 95
Table 3.4 Mains Connection - 3x220-240 V
No. 91 92
L1 L2
No. 95
Table 3.5 Mains Connection - 3x380-480 V
48
Bussmann Bussmann
n E4273 E4273
J/JDDZ T/JDDZ
JKS-20 JJS-20
JKS-25 JJS-25
JKS-50 JJS-50
Bussmann Bussmann
n E4273 E4273
J/JDDZ T/JDDZ
JKS-20 JJN-20
JKS-25 JJN-25
and the phase wire must be connected to
.
Mains voltage 1x220-240 V
(L1) (L3)
L1
Ground connection
Mains voltage 3x220-240 V
(L1) (L3)
L1 L3
Ground connection
93 Mains voltage 3x380-480 V
L3
Ground connection
Danfoss A/S © Rev. May/2014 All rights reserved.
Design Guide
Bussman Bussmann Bussman
n E4273 n
E4273 E4273
CC/JDDZ CC/JDDZ CC/JDDZ
FNQ-R-20 KTK-R-20 LP-CC-20
WARNING
Ensure that the mains voltage fits the mains voltage of
the frequency converter, which can be seen from the
nameplate.
WARNING
Do not connect 400 V units with RFI-filters to mains
supplies in which the voltage between phase and
ground is more than 300 V. For the IT mains and the
delta ground, the mains voltage can exceed 300 V
between phase and ground. Units with type code R5 can
be connected to mains supplies with up to 400 V
between phase and ground.
See chapter 5.1.1 Galvanic Isolation (PELV) for details on
correct dimensioning of cable cross-section.

3.4.4 Motor Connection

Connect the motor to terminals 96, 97, 98. Connect ground
to terminal 99.
See chapter 5.3 General Technical Data for correct
dimensioning of cable cross-section.
SIBA Little Fuse Ferraz-
E180276 E81895 Shawmut
E163267/
E2137
RK1/JDDZ RK1/JDDZ CC/JDDZ
5017906-020 KLS-R20 ATM-R25
5017906-025 KLS-R25 ATM-R20
5014006-050 KLS-R50
SIBA Little Fuse Ferraz-
E180276 E81895 Shawmut
E163267/
E2137
RK1/JDDZ RK1/JDDZ CC/JDDZ
5017906-020 KLS-R20 ATM-R25
5017906-025 KLS-R25 ATM-R20
Ferraz-
Shawmut
E163267/
E2137
RK1/JDDZ
A6K-20R
A6K-25R
- A6K-50R
Ferraz-
Shawmut
E163267/
E2137
RK1/JDDZ
A6K-20R
A6K-25R
MG27E402