SIM200™

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Rev.05/22/2025

Ordering Options

• The following ordering options are available for SIM200-<XYZ> where:

X = CAN communication Speed (A = 500 kbps, B = 250 kbps)

Y = Voltage Range (See Below Table)

Z = CAN Resistor Termination (A = 120 Ω Termination, B = No Termination)

• Note the following definitions:

Max Operational Voltage: The maximum voltage condition under which the SIM200 can monitor the system correctly – this should be the

absolute highest voltage under which SIM200 is required to correctly monitor system insulation.

Max Nominal System Voltage: The maximum permissible nominal system voltage for which a variant is suitable, given the requirements for

an Insulation Monitor in IEC 61557-8.

Application Voltage Range: The range of nominal system voltages for which a given variant is capable to reliably resolve Insulation Faults of

100 Ω/V.

• Example: SIM200 is monitoring a DC charger with output up to 1000 V under typical conditions. According to IEC 61557-8, the SIM200 must

be operational at voltages 115% of the nominal (1000 V) = 1150 V.

Variant

Max Nominal

System Voltage

Max Operational

Voltage

Minimum Total

Y-Capacitance

(uF)

Application

Voltage Range

Max Voltage

Withstand Vx1

or Vx2 to CAN

Max Voltage

Withstand Vx1

to Vx2

Max Voltage

Withstand Vx1

or Vx2 to Vch

SIM200-xNx

1363

1568

0.2

1000-1363 V

5 kV

5 kV

2.5 kV

SIM200-xKx

1000

1150

0.2

600-1000 V

5 kV

5 kV

2.5 kV

SIM200-xPx

510

582

0.9

300-510 V

5 kV

3 kV

1.5 kV

SIM200-xQx

140

161

2

60-140 V

5 kV

1 kV

0.5 kV

SIM200-xKxX

Reference SIM200-xKx specifications for hardware and performance details.

Fault threshold is configurable and therefore this part is not UL compliant. See below notes on configuration.

Configuration

SIM200 features a “Setup Mode” where the CAN 2.0B interface can be used to configure the IMD. CAN speed, CAN ID, system max voltage, and

the isolation warning threshold can all be configured from the default values if needed for the application. See CAN protocol “Setup Mode” and

“Commands” for details on modifying the “Configuration Parameters”.

Thresholds

Fault (100 Ω/V) and warning (500 Ω/V default) thresholds are calculated using the configured system max voltage. If a higher voltage than the

configured system max voltage is seen by the SIM200, the thresholds will be raised accordingly until the device is reset (via command or power

cycle).

When configuring warning threshold, ensure that any applicable safety standards are met by referring to the accuracies defined on the data-

sheet. Fault threshold is locked* to comply with UL2231 recognition requirements.

*For SIM200-xKxX, fault threshold is also configurable as described in the CAN protocol. Ensure that any applicable safety standards are met.

Note that higher amounts of instability in isolation state output can be expected at very low thresholds in addition to the lesser accuracy spec-

ified in the datasheet. SIM200 variants were validated to calculate fault thresholds within their respective application voltage ranges with 100

Ω/V fault threshold (e.g., 60 to 100 KΩ on SIM200-xKx) per UL2231. For fault resistances that are below this range, it is recommended to run

application representative validation tests to ensure proper functionality.