SMA America, LLC
Technical Data
Installation Guide
SB50US-80US-eng-IUS112633
99
11.8 Trip Limits/Trip Times
* The intervals result from the measuring accuracies listed below.
Manufacturer’s Accuracies:
Trip limit accuracy: ±2 % of nominal grid voltage
Trip time accuracy: ±0.1 % of nominal trip time
Trip frequency accuracy: ±0.1 % of nominal frequency
Nominal
Frequency
Trip Limit
Trip Frequencies
Trip Times
60 Hz
> 60.5 Hz
60.45 Hz … 60.55 Hz
max. 0.1602 s
< 57.0 Hz … 59.8 Hz
(standard 59.3 Hz)
56.95 Hz … 59.85 Hz
(standard 59.25 Hz …
59.35 Hz)
adjustable, 0.16 s … 300 s
(standard max. 0.1602 s)
< 57.0 Hz
56.95 Hz … 57.05 Hz
max. 0.1602 s
Nominal
Voltage
Trip Limit
Trip Voltages
Conductor-
Neutral
Conductor*
Trip Voltages
Conductor-
Conductor*
Trip Times
208 V
50 %
88 %
110 %
120 %
57.6 V … 62.4 V
103.2 V … 108.0 V
129.6 V … 134.4 V
141.6 V … 146.4 V
99.8 V … 108.2 V
178.9 … 187.2 V
224.6 V … 233.0 V
245.4 V … 253.8 V
max. 0.1602 s
max. 2.002 s
max. 1.001 s
max. 0.1602 s
240 V
50 %
88 %
110 %
120 %
57.6 V … 62.4 V
103.2 V … 108.0 V
129.6 V … 134.4 V
141.6 V … 146.4 V
115.2 V … 124.8 V
206.4 V … 216.0 V
259.2 V … 268.8 V
283.2 V … 292.8 V
max. 0.1602 s
max. 2.002 s
max. 1.001 s
max. 0.1602 s
277 V
50 %
88 %
110 %
120 %
133.0 V … 144.0 V
238.2 V … 249.3 V
299.2 V … 310.2 V
326.9 V … 337.9 V
not applicable
max. 0.1602 s
max. 2.002 s
max. 1.001 s
max. 0.1602 s
