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VARIODYN D1 Mains Switching Unit (MSU)
¬[Bh§/32'
583371.21 Mains Switching Unit (MSU)
1
Features
• Three 18 A excess current switches with control
contacts and control indicator light
• Low power connection and Ethernet connection to
connect a service PC for maintenance purposes
• Three connections for auxiliary changeover
contact per excess current switch
• Up to four devices can be connected to each
excess current switch
Approval: VdS
Part of EN 54-16 approval 0786-CPD-20997
The Mains Switching Unit MSU serves to protect the power supply of all VARIODYN D1
components which are built into a switchboard. It also provides a plug to connect a service
PC for local and network-wide servicing purposes.
Each of the up to three phases can be loaded with max. 18 A. The excess current switch
automatically releases the excess current but can also be used to manually switch the
voltage supply.
The operating conditions are indicated by green operating lights. The switch setting can be
evaluated via auxiliary contacts.A frontal 230 V low power socket and an RJ45 socket are
available for service PC connection.
Technical Data
Thermal Protection:
Rated current 18 A
Operating life 10.000 cycles
Shutdown 1-pole
Auxiliary Contacts:
Type Changeover contact
Contact load AC 250 V, max. 4 A
Contact load DC 24 V, max 4 A
Common technical data:
Ambient temperature -5 °C ... 55 °C
Air humidity 15 % ... 90 %
Weight approx. 4.2 kg
Dimensions W: 483 mm H: 44 mm D: 345 mm (1 HE, 19")
Accessories
583703 Mounting Kit 1
MAINS
max.
3 x 18 A
L1 L2 L3 N PE F1/L1 F1/N F1/PE F2/L2 F2/N F2/PE F3/L3 F3/N F3/PE
ETHERNET
Ethernet
programming port
POWER / F1
MSU rear view and front view
Phase 1 18 A Phase 2 18 A Phase 3 18 A
F3
F1 F2 F3
230 V-primary low receptacle,
for example, service PC power supply
00
1
00
1
00
11
CONTACTS
max. 250V / 4A
AUX L1 AUX L2 AUX L3
MSU
VARIODYN D1
ETHERNET
Ethernet
connection to the DOM
25
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2
3
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