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Technical specifications SIA-E

Technical parameters

Permission: yes/no

Operating range: SIAEA*: 3 to 450 A primary (step 0.1) SIAEB*: 5 to 750 A primary (step 0.1)

Function 50P

Operating time: 0.02 to 300 s (step 0.01) Activation level 100% Deactivation level 95% Instantaneous deactivation

Permission: yes/no

Operating range: SIAEA*: 3 to 105 A primary (step 0.1) SIAEB*: 5 to 175 A primary (step 0.1)

Curves: IEC 255-4/BS-142 Operating time:

Inverse curve, very inverse curve, extremely inverse curve.

Function 51P

Definite time: 0.02 to 300 s (0.01 s) Dial: 0.05 to 1.25

Curve, activation level 120% Curve, deactivation level 100% Definite time, activation level 100% Definite time, deactivation level 95% Instantaneous deactivation

Timing accuracy: 5% or 30 ms (greater of both)

Trip blocking

Overtemperature trip input

Trip output Frequency

Current measure

Communications Auxiliary supply

Permission: yes/no Blocking level: SIAEA*: 105 to 300 A primary (step 0.1) SIAEB*: 175 to 500 A primary (step 0.1)

Charging time 10 s

10 V - 8 mJ (activation of the strike or with TCM adapter the coil)

50/60 Hz True RMS

Sampling: 16 samples/cycle Accuracy ±2% in the whole range RS232 port: Modbus RTU RS485 port: Modbus RTU 230 Vac ±20 %

Transformers Battery supply

Self-power from current

Maximum permanent current

Environment Function 51N Function 50N

Permission: yes/no

Operating range: SIAE*A: 0.3 to 45 A primary (step 0.1) SIAE*B: 0.3 to 45 A primary (step 0.1)

Operating time: 0.02 to 300 s (step 0.01) Activation level 100% Deactivation level 95% Instantaneous deactivation

Permission: yes/no

Operating range: SIAE*A: 0.3 to 10.5 A primary (step 0.1) SIAE*B: 0.3 to 10.5 A primary (step 0.1)

Curves: IEC 255-4/BS-142 Operating time:

Inverse curve, very inverse curve, extremely inverse curve.

Definite time: 0.02 to 300 s (0.01 s) Dial: 0.05 to 1.25

Curve, activation level 120% Curve, deactivation level 100% Definite time, activation level 100% Definite time, deactivation level 95% Instantaneous deactivation

Timing accuracy: 5% or 30 ms (greater of both)

With KITCOM adapter DB9

One phase self-power level: I > 5 A (primary) 100 A primary

Operating temperature: -10 to 60 ºC Storage temperature: -20 to 70 ºC Humidity: 95%

Power supply and measurement. Transformers with double core CT-DB

Mechanical features

Metallic box Panel mounting 1/2 Rack - 4 U IP-52.

Dimensions and cutout pattern SIA-E

cutout

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