7SG15 MicroTAPP Performance Specification
4. Status Inputs
Nominal Operating Range
30/34 V AC or DC 18 to 37.5 V
48/54 V AC or DC 37.5 to 60 V
110/125 V AC or DC 87.5 to 137.5 V
220/250 V AC or DC 175 to 280 V
4.1 Electricity Association ESI48-4
The 30/34V and 48/54V inputs meet the requirements of ESI48-4 ESI 1. However, the 110/125V and 220/250V
inputs will operate with a DC current of less than 10mA. If 110/125V or 220/250V inputs compliant with ESI48-4
ESI 1 are required, a MicroTAPP with 48/54 V status can be supplied with external dropper resistors as follows:
Nominal Voltage Resistor Value Wattage
110, 125 V 2k7 ± 5% 2.5 W
220, 250 V 8k2 ± 5% 6.0 W
4.2 Status Input Performance
Minimum DC current to operate status input
10mA
Reset/Operate voltage ratio
≥90%
Recommended minimum pulse duration
500ms
5. Output Contacts
5.1 Carry continuously 5A a.c. or d.c.
5.2 Make and carry (limit L/R ≤ 40ms and V ≤ 300V)
For 0.5s
20A a.c. or d.c.
For 0.2s
30A a.c. or d.c.
5.3 Break (limit ≤ 5A and V ≤ 300V)
a.c. resistive
1250VA
a.c. resistive (p.f. ≤ 0.4)
250VA
d.c. resistive
75W
d.c. resistive L/R ≤ 40ms
L/R ≤ 10ms
30W
50W
Minimum no. of operations (1250VA resistive a.c.
load)
250,000
Minimum recommended load
0.5W, limits 10mA or 5V
©2010 Siemens Protection Devices Limited Chapter 2 Page 5 of 8
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