Page 88 - SACE Tmax XT - Catalogue

3/54 SACE TMAX XT LOW VOLTAGE MOLDED CASE CIRCUIT-BREAKERS

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Tolerances

ABB Code ANSI Code Function Threshold Range Trip Time
Protections
L 49 Overload according to 60947-2 trip between 1.05 and 1.2 x I1 ± 10% I < 6 x In
± 20% I ≥ 6 x In
49 Overload according to 60255-151 trip between 1.05 and 1.2 x I1 ± 10% I < 6 x In
± 20% I ≥ 6 x In
S 50 TD Selective short-circuit ± 7% I < 6 x In The better of the two data:
± 10% I ≥ 6 x In ± 10% or ± 40ms
51 Selective short-circuit ± 7% I < 6 x In ± 15% I < 6 x In
± 10% I ≥ 6 x In ± 20% I ≥ 6 x In
I 50 Instantaneous short-circuit ± 10% ≤ 30ms
G 50N TD Earth Fault ± 7% 50ms with t4=instantaneous
51N Earth Fault ± 7% ± 15%
2I 50 2nd Instantaneous short-circuit ± 10% ≤ 15ms (1)
MCR Closing on short-circuit ± 10% ≤ 30ms
IU 46 Current unbalance 10% The better of the two data:
± 10% or ± 40ms (for t5<5s) / ± 40ms (for t5 ≥ 5s)
LC1/2 - Iw1/2 Current threshold ± 10%
S2 68 2nd Selective short-circuit ± 7% I < 6 x In The better of the two data:
± 10% I ≥ 6 x In ± 10% or ± 40ms
UV 27 Undervoltage ± 2% The better of the two data:
± 10% or ± 100ms (for t8<5s) / ± 100ms (for t8 ≥ 5s)
OV 59 Overvoltage ± 2% The better of the two data:
± 10% or ± 100ms (for t9<5s) / ± 100ms (for t9 ≥ 5s)
UV2 27 2nd Undervoltage ± 2% The better of the two data:
± 10% or ± 100ms (for t15<5s) / ± 100ms (for t15 ≥ 5s)
OV2 59 2nd Overvoltage ± 2% The better of the two data:
± 10% or ± 100ms (for t16<5s) / ± 100ms (for t16 ≥ 5s)
VU 47 Voltage unbalance ± 5% The better of the two data:
± 10% or ± 100ms (for t14<5s) / ± 100ms (for t14 ≥ 5s)
S(V) 51V Voltage controlled overcurrent ± 10% The better of the two data:
± 10% or ± 100ms (for t20<5s) / ± 100ms (for t20 ≥ 5s)
S2(V) 51V 2nd Voltage controlled overcurrent ± 10% The better of the two data:
± 10% or ± 100ms (for t21<5s) / ± 100ms (for t21 ≥ 5s)
RV 59N Residual overvoltage ± 10% The better of the two data:
± 10% or ± 100ms (for t22<5s) / ± 100ms (for t22 ≥ 5s)
UF 81L Underfrequency ± 1% (with fn ± 2%) The better of the two data:
± 10% or ± 100ms (for t12<5s) / ± 100ms (for t12 ≥ 5s)
OF 81H Overfrequency ± 1% (with fn ± 2%) The better of the two data:
± 10% or ± 100ms (for t13<5s) / ± 100ms (for t13 ≥ 5s)
UF2 81L 2nd Underfrequency ± 1% (with fn ± 2%) The better of the two data:
± 10% or ± 100ms (for t17<5s) / ± 100ms (for t17 ≥ 5s)
OF2 81H 2nd Overfrequency ± 1% (with fn ± 2%) The better of the two data:
± 10% or ± 100ms (for t18<5s) / ± 100ms (for t18 ≥ 5s)