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Low-voltage over-pressure lamps for 10 V systems, road traffic
Product
reference
Product number
Single pack
SIG 1227
4008321903990
10,5
22
270
s135
2)
BA20s
SIG 1238
4008321904003
10,5
30
400
s135
2)
BA20s
Product
reference
Product number
Standard pack
SIG 1227
36
67
31
1)
4050300235028
200
1
SIG 1238
36
67
31
1)
4050300253091
200
1
1) Distance from the coil to the lug of base
2) Lamps with transverse filament should be preferred inclined perpendicular to the filament plane / Only the permissible burning position may be used otherwise the lamp will fail prematurely
Product benefits
—
Much higher luminous efficacy than high-voltage
signal lamps
—
Clearly improved lamp quality due to higher gas
pressure and inert gas filling
—
Leads to reduced power consumption of the signal
installation
—
High resistance against shock and vibration
compared to high-voltage lamps
—
Max. premature failure rate: 2 % up to 4,400 h
(related to lamp failures only)
—
Retrofit for 230 V systems (replace lamp and
reflector and install transformator)
Areas of application
—
Road traffic signalling systems
Safety advice
Use only in equipment/luminaires that are specially
designed for the purpose.
Protect the lamps against moisture during operation
and installation.