7SR45 Performance Specification
© 2017 Siemens Protection Devices Limited Chapter 3 Page 4 of 10
Table 1-4 Terminal Blocks
Current Inputs 8 position (Terminal X5), M4 Screw-type Barrier Terminal block
suitable for 2.5 mm
2
/4 mm
2
cable
Binary Input 4 position (Terminal X1), M3 screw-type plug-in terminals suitable for
2.5 mm
2
cable
Binary Output 6 position (Terminal X2), M3 screw-type plug-in terminals suitable for
2.5 mm
2
cable
Pulse Output
2 position (Terminal X2), M3 screw-type plug-in terminals suitable for
2.5 mm
2
cable
Front Port USB, Type B
Ground Terminal M3 ring type terminals suitable for 2.5 mm
/4 mm
cable
Table 1-5 Current Inputs
Quantity 3 x Phase and 1 x Earth
Rated Current In 1 A or 5 A (ordering option)
Measuring Range 0.2xIn to 20xIn
Instrumentation > 0.13xIn to 2xIn
± 5 % (Typical)
> 2xIn to 20xIn
± 3%
Frequency 50 Hz (Range: 45 Hz to 55 Hz)
60 Hz (Range: 54 Hz to 66 Hz)
Thermal Withstand:
Continuous
1 second
2xIn
50 A (1 A) 150 A (5 A)
Burden @ In ≤ 3.0 VA per phase and ≤ 0.2 VA earth for 1 A
≤ 3.5 VA per phase and ≤ 0.2 VA earth for 5 A
Table 1-6 Binary Inputs
Number 2
19 V DC 19 V - 110 V DC
Maximum DC current for
operation
19 V - 110 V DC
3.0 mA
Pick Up Delay User selectable 0 to 600 s (up to 10 minutes)
Drop Off Delay User selectable 0 to 600 s (up to 10 minutes)