Safety Ammeter Data Sheet

SAFETY AMMETER (Example for Points)

Features

•   Designed for use in Railway applications (SIL 0,2 or 4).

·         Sends current values in A/B-telegrams to interlocking

·         Self-testing.

·         Semiconductor technology

Electrical characteristic @ 25°C
		Min	Typ	Max
Operational Temperature (°C)		-25	25	70
Vcc (V)		32	36	48
Power consumption				0,15 W
Isolation between A and Com		2 kV
Earth isolation		3 kv
AMMETER
DC Current	@ 50 V	0,5 A	3 A	4 A
AC Current	@ 220 V	0,5 A	3 A	4 A
A resistance	@ 4 A			0.25 W
A-voltage	@ 4 A			1 V
Power	@ 4 A			4 W
Break-down voltage		350 V
Dimensions L x H x W		10 x 8 x 3 cm
Standard Error Detect (Can be changed programmatically)
Ammeter resistance change				10 %
Time from error to disclosure		250 msec.	1 sec.	5 sec.