Brochure

3RV1 Circuit Breaker/MSP
SIRIUS System Manual
2-40 GWA 4NEB 430 0999-02 DS 01
2.4.8 Busbar adapter 8US1 (Fastbus system)
To enable the circuit breakers/MSPs to be mounted without using up too
much space, and to ensure that the infeed is economical in terms of both
time and money, the switches can be mounted directly onto busbar systems
using busbar adapters.
The circuit breakers/MSPs are snapped onto the adapter and connected at
the input side. This prepared unit is mounted directly onto the busbar sys-
tems, thus both attaching it mechanically and establishing electrical contact.
Busbar systems The adapters are suitable for the following systems:
Accessories The following accessories are available for busbar adapters:
• Modules that can be mounted on either side to widen the adapters
• Busbar holder for 3 rails
• Molded-plastic covers for 3 terminals (40 mm system)
• Molded-plastic cover profiles for shock protection
Measurements The following table lists the dimensions of the busbar adapters and accesso-
ries.
1) Up to 460 V AC with max. short-circuit breaking capacity of 25 kA
2) Not to be used for voltages < 480 V
short-circuit breaking capacity 480/500/525 V AC
- Up to In=25 A: max. 30 kA
- Up to In=90 A: max. 16 kA
short-circuit breaking capacity 690 V AC: max. 12 kA
Busbar systems with
center-to-center spacing
For copper busbars in acc. with DIN 46 433
Width Depth
40 mm systems 12 mm and 15 mm 5 mm and 10 mm
60 mm systems 12 mm to 30 mm 5 mm and 10 mm
Table 2-14: Busbar systems
System
Busbar adapter and
accessories
Length Width
For circuit
breakers/MSPs in
frame size
40 mm Circuit breaker/MSP
+ lateral auxiliary switch
121 mm
121 mm
45 mm
55 mm
S00, S0
S00, S0
Circuit breaker/MSP
139mm 55mm S2
Circuit breaker/MSP 182 mm
182 mm
70 mm
72 mm
S3 (to 400 V)
1)
S3 (480 to 690 V)
2)
Side module 139 mm
182 mm
13.5 mm
13.5 mm
S2
S3
60 mm Circuit breaker/MSP 182 mm 45 mm S00, S0
182mm 55mm S2
182 mm
182 mm
70 mm
72 mm
S3 (to 400 V)
1)
S3 (480 to 690 V)
2)
Side module 182 mm 13.5 mm S00 to S3
Table 2-15: Dimensions of the busbar adapters and accessories