8
Transfer-Time Table
Mode / Transfer Switch
ATS
STS
Haphazard
Inverter to utility AC: 8~10ms.;
Utility AC to inverter: 16~50ms.
Frequency is synchronized: < 4ms.;
Frequency is not synchronized:
Inverter to utility AC: < 4ms.;
Utility AC to inverter: 16~50ms.
Normal
Inverter to utility AC: 8~10ms.;
Utility AC to inverter: 16~25ms.
< 4ms
Exacting
Inverter to utility AC: 8~10ms.;
Utility AC to inverter: 16~50ms.
Inverter to utility AC: < 4ms.;
Utility AC to inverter: 16~50ms.
Online
Inverter to utility AC: 8~10ms.;
Utility AC to inverter: 16~25ms.
< 4ms
Table 1. SD series transfer-time
2-4. Mechanical Drawings
Figure 3. SD series mechanical drawings
Model
A
(mm)
B
(mm)
C
(mm)
D
(mm)
E
(mm)
F
(mm)
G
(mm)
H
(mm)
SD2500
436
240.0
95.6
268.6
8.5
11.5
128
283
SD3500
496
240.0
125.6
268.6
8.5
11.5
128
283
Table 2. SD series dimension
