OPT-SNAP-AIARMS-i

SNAP-AIARMS-i SNAP Isolated 2-Ch 0-10 amp RMS Analog Input Module

The SNAP-AIARMS-i module provides two isolated channels with an input range of 0 to 10 amps RMS AC/DC. An ideal
input is the 5-amp secondary of a standard current transformer used to monitor AC line current. The module may also be
used to monitor AC current to greater than a 100-amp range, using a current transformer of suitable ratio.
 
The two channels are isolated from each other; they do not share any field connection. The SNAP-AIARMS-i module is an
excellent choice for differential current measurements.
 
If you need Factory Mutual approval, choose the SNAP-AIARMS-i-FM instead.
 
If you do not need channel-to-channel isolation, see SNAP-AIARMS.
 
Part of the SNAP PAC System, the module mounts on a SNAP PAC rack with a SNAP PAC brain or rack-mounted
controller. Analog, digital, and serial I/O modules can all be on the same rack. Such an I/O unit is also well suited for PC-
based control or for use as intelligent remote I/O for an Allen-Bradley Logix PLC system, such as ControlLogix,
MicroLogix, or CompactLogix.
 

Input Range	0 to 10 amp RMS AC/DC
Input Over-Range	To 11 amps
Input Resistance	0.005 ohms
Maximum Input	11 amps AC/DC
Accuracy (AC)	±8 mA and ±0.2% reading
Resolution	400 µA
DC Reversal	±16 mA (0.16%)
Input Response Time (Step Change)	63.2% (6.32 A) in 50 mS 99% (9.92 A) in 75 mS
DC Common Mode Rejection	>-120 dB
AC Common Mode Rejection	>-120 dB at 60 Hz
Maximum Operating   Voltage Between Channels   Common Mode Voltage	250 V 250 V
Isolation: Optical	4000 V
Isolation: Transformer	1500 V
Isolation: Channel to Channel	250 V continuous (1500 V transient)
Power Requirements	5 VDC (±0.15 V) at 200 mA
Ambient Temperature:   Operating   Storage	0 °C to 70 °C -25 °C to 85 °C
Torque, hold-down screws	4 in-lb (0.45 N-m)
Torque, connector screws	5.26 in-lb (0.6 N-m)
Agency Approvals	CE, RoHS, DFARS FM (SNAP-AIARMS-FM only)
Warranty	Lifetime

Rev: 04/13