ABB Vmax 12 - General Characteristics of Fixed Circuit Breakers; Standard Fittings for Fixed Circuit Breakers

1010
VMAX - INSTALLATION AND SERVICE INSTRUCTIONS
D
H
W
I
I
Circuit breaker
Vmax 12 Vmax 17 Vmax/F 12 (*) Vmax/F 17 (*) Vmax 15
Fixed version
• • - - •

- - • • -
Standards

• • • • -

• • • • -

- - - - •
UL Recognized Component Mark
- - - - •
Rated voltage Ur [kV]
12 17.5 12 17.5 15
Rated insulation voltage Us [kV]
12 17.5 12 17.5 15
 
28 38 28 38 36 (at 60 Hz)
Impulse withstand voltage Up [kV]
75 95 75 95 95
Rated frequency fr [Hz]
50–60 50–60 50–60 50–60 60
 Ir [A]
630 1250 630 1250 630 1250 2000 630 1250 2000 (**) 1200
Rated breaking capacity
(rated symmetrical
short-circuit current)
Isc [kA]
16 16 16 16 - - - - - - -
20 20 20 20 - - - - - - -
25 25 25 25 25 25 25 25 25 25 25 (3 cycles)
31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 (3 cycles)
Rated-short time

Ik [kA]
16 16 16 16 - - - - - - -
20 20 20 20 - - - - - - -
25 25 25 25 25 25 25 25 25 25 25 (2s)
31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 (2s)
Making capacity Ip [kA]
40 40 40 40 - - - - - - -
50 50 50 50 - - - - - - -
63 63 63 63 63 63 63 63 63 63 65
80 80 80 80 80 80 80 80 80 80 82
Operation sequence

• • • • -

- - - - •
Opening time [ms]
33–60 33–60 33–60 33–60 27 ... 32.5
Arc duration [ms]
10–15 10–15 10–15 10–15 10–17.5
Total breaking time [ms]
43–75 43–75 43–75 43–75 <50
Closing time [ms]
30–60 30–60 30–60 30–60 45–80
Maximum
overall
dimensions
H [mm/in]
496 534 543 543 543 543 534/21.02
W [mm/in]
416 416 416 416 416 416 416/16.38
D [mm/in]
421 456 461 562 461 562 456/17.95
Pole center I [mm/in]
133–155 133–155 133 133 133 133 133/5.24
Weight [kg/lb]
77 77 77 80 77 80 77/169.40
Standardized table of dimensions 
003279 003279 003516 003558 003516 003558 003279
Operating temperature [°C]
-5 ... +40 -5 ... +40 -5 ... +40 -5 ... +40 -30 ... +40
Tropicalization 
• • • • -
Electromagnetic compatibility 
• • • • -
(*) This version cannot be sold loose; this version can only be supplied for
2000 A; Vmax/FH version must be ordered together with ABB UniGear
500R switchgear.
(**) Up to 15 kV
5.3.2. Standard fittings for fixed circuit breakers
The basic versions of the fixed circuit breakers
are three-pole and fitted with:
• EL type manual operating mechanism
• mechanical signalling device for closing springs
charged/discharged
• mechanical signalling device for circuit breaker
open/closed
• closing pushbutton
• opening pushbutton
• operation counter
• set of ten circuit breaker open/closed auxiliary
contacts
Note: application of the shunt opening release and/or additional shunt
opening release foresees the use of one or two auxiliary make contacts
(normally open), thereby reducing the number of auxiliary contacts available.
• lever for manual closing spring charging
• auxiliary circuit support terminal box.
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5. Description
5.3.1. General characteristics of fixed circuit breakers