Safety clamp
To maintain the galvanic isolation (PELV) between the
control terminals and high-voltage terminals, the ac-
companying safety clamp must be attached to VLT
2803-2815, 200-240 V, and VLT 2805-2815, 380-480
V. Attach the safety clamp to the strain relief plate with
the two screws provided.
Prefuses
For all unit types, external prefuses must be fitted in
the line supply to the adjustable frequency drive. For
UL/cUL applications with a line voltage of 200-240
Volt, use prefuses type Bussmann KTN-R (200-240
Volt) or Ferraz Shawmut type ATMR (max. 30A). For
UL/cUL applications with a line voltage of 380-480
Volt, use prefuses type Bussmann KTS-R (380-480
Volt).
Prefuses for UL application /cUL
Alternative fuses 380-500 V drives
VLT 2800 Bussmann
E52273
Bussmann
E4273
Bussmann
E4273
Bussmann
E4273
Bussmann
E4273
Bussmann
E4273
SIBA
E180276
Little Fuse
E81895
Ferraz-
Shawmut
E163267/
E2137
Ferraz-
Shawmut
E163267/
E2137
RK1/JDDZ J/JDDZ T/JDDZ CC/JDDZ CC/JDDZ CC/JDDZ RK1/JDDZ RK1/JDDZ CC/JDDZ RK1/JDDZ
2805-
2820
KTS-R20 JKS-20 JJS-20 FNQ-R-20 KTK-R-20 LP-CC-20 5017906-02
0
KLS-R20 ATM-R25 A6K-20R
2855-
2875
KTS-R25 JKS-25 JJS-25 5017906-02
5
KLS-R25 ATM-R20 A6K-25R
2880-
2882
KTS-R50 JKS-50 JJS-50 5014006-05
0
KLS-R50 - A6K-50R
Alternative Fuses 200-240 V drives
VLT 2800 Bussmann
E52273
Bussmann
E4273
Bussmann
E4273
SIBA
E180276
Little Fuse
E81895
Ferraz-
Shawmut
E163267/
E2137
Ferraz-
Shawmut
E163267/
E2137
RK1/JDDZ J/JDDZ T/JDDZ RK1/JDDZ RK1/JDDZ CC/JDDZ RK1/JDDZ
2803-2822 KTN-R20 JKS-20 JJN-20 5017906-02
0
KLS-R20 ATM-R25 A6K-20R
2840 KTN-R25 JKS-25 JJN-25 5017906-02
5
KLS-R25 ATM-R20 A6K-25R
AC line connection
All drives that are equipped with an RFI
filter cannot be connected to a grounded
DELTA or IT mains/AC line system.
NOTE
Check that the AC voltage matches the
voltage rating of the drive. The drive rating
is on the drive nameplate. See Technical
data in this manual for correct dimension-
ing of cable cross-section.
For single phase 220-240 Volts input, attach the neu-
tral wire to terminal N
(L2)
and connect the phase wire
to terminal L1
(L1)
.
No
.
N
(L2)
L1
(L1) (L3)
AC line voltage 1 x 220-240 V
N L1
No
.
95 Ground connection
No
.
N
(L2)
L1
(L1) (L3)
AC line voltage 3 x 220-240 V
L2 L1 L3
No
.
95 Ground connection
No
.
91 92 93 AC line voltage 3 x 380-480 V
L1 L2 L3
No
.
95 Ground connection
380-460 Volt units with RFI-filters may
not be connected to AC line supplies in
which the voltage between phase and
ground is more than 300 Volts. Please
note that for the AC line for IT and the delta
ground the AC line voltage can exceed
300 Volts between phase and ground.
Units with type code R5 can be connected
VLT
®
2800 Series
MG.27.A2.22 - VLT
®
is a registered Danfoss trademark 17
Installation
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