Datasheet
150
MC4: 411
MV: 404
130
MC4: 240
MV: 224
150
MC4: 411
MV: 404
150
MC4: 411
MV: 404
225
MC4: 411
MV: 404
500
375
250
250
100
Input
+ -
L N 1 2
Input
+ -
+ -
Output
+ -
Output
U < U <
n
Big protection for little money
PV fireman's switches are DC switch-disconnectors that isolate the lines between solar
modules and inverters. They allow firefighters to operate without risk of electrocution.
In addition to the SOL30-Safety for small installations Eaton offers prefabricated
fireman's switches housing 2, 3, 4 or 6 switch-disconnectors in a common enclosure. In
contrast to generator terminal boxes the individual strings are not connected in parallel
but can be fed separately to the inverter. This allows the use of several MPP trackers and
helps optimize the inverter’s performance.
In the event of fire or other hazards, undervol-
tage releases trip the fireman's switches. The
undervoltage releases respond with a delay of
600 ms, so that more than 93% of all brief
power failures and voltage drops will not cause
a trip, preventing downtimes caused by erro-
neous tripping.
All fireman's switches feature auxiliary con-
tacts with one N/O and one N/C contact. The
N/C contacts in the combinations are factory-
wired and connected to the modular terminals.
This allows the switching position of the PV
fireman's switches to be queried and, for
example, indicated with an external indicator
lamp. The fireman's switches are available with
metric screw connection or with MC4 sockets.
On the metric devices all cables are connected
to the modular terminals, which guarantee a
fast and simple installation.
The enclosures have degree of protection IP65
and feature a pressure equalization element to
avoid condensate formation in the enclosure.
This makes Eaton’s fireman's switches ideal
for outdoor use, although a protected moun-
ting location is recommended.
SOL30X…-SAFETY fireman's switch PV off switch
• Rated operating voltage 1000 VDC
• Rated operational current of each switch-disconnector 30 A
• DC-21A utilization category
• Switch-disconnectors tested to IEC/EN 60947-3
• Prewired ready for connection
• IP65 protection type
• Admissible ambient temperature range -25°C up to +60°C
• according to VDE-AR-E 2100-712
• Scope of application: DC isolation in photovoltaic systems between PV generator and inverter for disconnecting power
• Remote tripping with integrated undervoltage release 230V, 50Hz
• Undervoltage release responds with a delay of 0.6 seconds to bridge short-term mains voltage fluctuations
• Signalling of switch state via auxiliary contact 1 N/O and 1 N/C
• Internal resistance of each switch-disconnector 7m⍀
• Pressure equalization element
• IP 65 protection type
• Tamper-proof according to ISO 13850/EN 418
• Pull to release or rotate
• Color enclosure top: red
Number
Switch-
disconnec-
tors
Rated
operating
voltage U
e
V
Rated
operational cur-
rent I
e
of each switch-
disconnector
A
Number and type of
Terminal type
INPUT
OUTPUT
Terminal capacity
Flexible with
ferrule mm²
Weight
kg
Dimensions
mm
Part
no.
Article no.
Description
Part no.
Article no.
Complete with guard-ring, 1 N/O, 1 N/C
M22-SOL-PVT45PMPI11Q
150644
Complete with guard-ring, 2 N/C
M22-SOL-PVT45PMPI02Q
150645
1 1000 30 2xMC4 (+)
2xMC4 (-)
1xMC4 (+)
1xMC4 (-)
max.6 0.47
SOL30-SAFETY/2MC4-U
(230V50HZ)
144122
Complete, 1 N/O 1 N/C, sealable
M22-SOL-PVLPL11-230Q
152627
1 1000 30 2xM12 (+)
2xM12 (-)
1xM12 (+)
1xM12 (-)
1x(max.6), 2x(max.6) 0.47
SOL30-SAFETY/2MV-U
(230V50HZ)
144123
Wiring diagram of fireman's switch SOL30X…-SAFETY
*¹)
*
2
) 2 1000 30 2xMC4 (+)
2xMC4 (-)
2xMC4 (+)
2xMC4 (-)
max.6 5.1
SOL30X2-SAFETY-MC4-U
(230V50HZ)
168098
2 1000 30 2xM12 (+)
2xM12 (-)
2xM12 (+)
2xM12 (-)
max.6 5.1
SOL30X2-SAFETY-MV-U
(230V50HZ)
168099
*
2
) 3 1000 30 3xMC4 (+)
3xMC4 (-)
3xMC4 (+)
3xMC4 (-)
max.6 5.5
SOL30X3-SAFETY-MC4-U
(230V50HZ)
168100
* IP4X cover of fireman's switches
3 1000 30 3xM12 (+)
3xM12 (-)
3xM12 (+)
3xM12 (-)
max.6 5.5
SOL30X3-SAFETY-MV-
U(230V50HZ)
168101
*
2
) 4 1000 30 4xMC4 (+)
4xMC4 (-)
4xMC4 (+)
4xMC4 (-)
max.6 6.8
SOL30X4-SAFETY-MC4-U
(230V50HZ)
168102
4 1000 30 4xM12 (+)
4xM12 (-)
4xM12 (+)
4xM12 (-)
max.6 6.8
SOL30X4-SAFETY-MV-
U(230V50HZ)
168103
*
2
) 6 1000 30 6xMC4 (+)
6xMC4 (-)
6xMC4 (+)
6xMC4 (-)
max.6 9.5
SOL30X6-SAFETY-MC4-U
(230V50HZ)
168104
6 1000 30 6xM12 (+)
6xM12 (-)
6xM12 (+)
6xM12 (-)
max.6 9.5
SOL30X6-SAFETY-MV-U
(230V50HZ)
168105
*
1
) Two strings can be connected in parallel
*
2
) All fireman's switches are fingerproof through IP4X cover