Safety Clamp; Pre-Fuses; Mains Connection - Danfoss VLT 2800 Series Operating Instructions Manual

Safety clamp

If the galvanic isolation (PELV) between
control terminals and high-voltage termi-
nals is to be maintained, the accompany-
ing safety clamp must be fitted to VLT
Alternative fuses 380-500 V drives
VLT 2800 Bussmann Bussmann
E52273 E4273
RK1/JDDZ J/JDDZ
2805- KTS-R20 JKS-20
2820
2855- KTS-R25 JKS-25
2875
2880- KTS-R50 JKS-50
2882
Alternative Fuses 200-240 V drives
VLT 2800 Bussmann Bussmann
E52273 E4273
RK1/JDDZ J/JDDZ
2803-2822 KTN-R20 JKS-20
2840 KTN-R25 JKS-25

Mains connection

Please note that at 1 x 220-240 Volt the neutral wire
must be attached to terminal N
must be connected to terminal L1
No. N L1 Mains voltage 1 x 220-240 V
(L2) (L1) (L3)
N L1
No. 95 Earth connection
No. N L1 Mains voltage 3 x 220-240 V
(L2) (L1) (L3)
L2 L1 L3
No. 95 Earth connection
No. 91 92 93 Mains voltage 3 x 380-480 V
L1 L2 L3
No. 95 Earth connection
NB!
Please check that the mains voltage fits
the mains voltage of the frequency con-
®
MG.27.A2.02 - VLT is a registered Danfoss trademark
Bussmann Bussmann Bussmann
E4273 E4273 E4273
T/JDDZ CC/JDDZ CC/JDDZ
JJS-20 FNQ-R-20 KTK-R-20
JJS-25
JJS-50
Bussmann
E4273
T/JDDZ
JJN-20
JJN-25
and the phase wire
(L2)
.
(L1)
®
VLT 2800 Series
2803-2815, 200-240
2805-2815, 380-480 V.

Pre-fuses

For all unit types, external pre-fuses must be fitted in
the mains supply to the frequency converter. For UL/
cUL applications with a mains voltage of 200-240 Volt,
use pre-fuses type Bussmann KTN-R (200-240 Volt)
or Ferraz Shawmut type ATMR (max. 30A). For UL/
cUL applications with a mains voltage of 380-480 Volt,
use pre-fuses type Bussmann KTS-R (380-480 Volt).
Prefuses for UL application /cUL
Bussmann SIBA Little Fuse
E4273 E180276 E81895
CC/JDDZ RK1/JDDZ RK1/JDDZ
LP-CC-20 5017906-02 KLS-R20
0
5017906-02 KLS-R25
5
5014006-05 KLS-R50
0
SIBA Little Fuse
E180276 E81895
RK1/JDDZ RK1/JDDZ
5017906-02 KLS-R20
0
5017906-02 KLS-R25
5
verter, which can be seen from the name-
plate.
400-Volt units with RFI-filters may not be
connected to mains supplies in which the
voltage between phase and earth is more
than 300 Volts. Please note that for the IT
mains and the delta earth the mains volt-
age can exceed 300 Volts between phase
and earth. Units with type code R5 can be
connected to mains supplies with up to
400 V between phase and earth.
See Technical data for correct dimensioning of cable
cross-section. See also the section entitled Galvanic
isolation for further details.
V, and VLT
Ferraz- Ferraz-
Shawmut Shawmut
E163267/ E163267/
E2137 E2137
CC/JDDZ RK1/JDDZ
ATM-R25 A6K-20R
ATM-R20 A6K-25R
- A6K-50R
Ferraz- Ferraz-
Shawmut Shawmut
E163267/ E163267/
E2137 E2137
CC/JDDZ RK1/JDDZ
ATM-R25 A6K-20R
ATM-R20 A6K-25R
67