Table 6-39 Specifications of the SPD28SZ surge protector
No. Item Technical Requirement
1 Input feature Input rated voltage Single-phase 220 VAC
Input frequency range 47 Hz to 53 Hz
Input voltage range 154 V to 286 V
Input rated current 30 A
2 Output feature Output voltage 154 V to 286 V
3 surge protection
index
Normal nominal discharge
current In
20 kA
Maximum impact
throughput capacity Imax
40 kA
Residual voltage Ur (8/20
µs, 20 kA)
≤ 1300 V
4 Over-voltage
protection
Over-voltage protection
point
275±5 V
Return difference 5 V to 10 V
5 Alarm function Remote alarm function The remote output is the dry
contact digital signals. In
normal cases, the contact is
closed.
Local alarm function Indicated by the LED on the
front panel.
6.10 100 Ah Battery
This topic provides the overview, outline and specifications of the 100 Ah battery.
NOTICE
l Ensure that the polarity position of each battery is correct. The connection between
batteries and the power system/battery interface of the device must be firm and correct.
l When the device power supplied by the battery, it is suggested that powered on timely to
avoid the battery extended storage.
l When the device is power off, ensure that the battery switch is in the OFF state.
l After the device is powered on, the battery parameters need to be configured in time.
NOTE
The appearance and weight of the battery are only for reference, which may differ from the actual
delivered battery.
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Hardware Description
6 Electromechanical Device
Issue 24 (2018-07-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
955
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