Page 381 - Contactors_Catalogue

ABB MOTOR CONTROL AND PROTECTION FOR ROLLING STOCK APPLICATIONS 7/11

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Insulation monitoring relays

Ordering details

CM-IWN.1
• For monitoring the insulation resistance of unearthed systems up to U = 250 V AC and
n
300 V DC or U = 400 V AC and 600 V DC
n
• Prognostic measuring principle with superimposed square wave signal
• One or two measuring ranges
- 1-100 kW
- 1-100 kW + 2-200 kW
2CDC 251 020 V0012 • One or two configurable c/o contacts
• Precise adjustment of the measuring value in 1 or 2 kW steps
• (Non-volatile) fault storage, configurable latching, interrupted wire protection, open- or
CM-IWN.1 closed-circuit principle selectable

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Ordering details - CM-IWN
Rated Nominal System Outputs Adjustment Type Order code
control voltage leakage ca- range of the
supply U of the pacitance, specified
n
voltage = distribution max. response
measuring system to be value R
an
voltage monitored (threshold)
07
0-400 V AC / 2 x 1 or 1-100 kW
0-600 V DC 1 x 2 c/o 2-200 kW CM-IWN.1S 1SVR750660R0200
24-240 Expendable 20 μF (SPDT) (activated / de-
V AC/DC
with coupling contacts activated by
unit CM-IVN.x configurable DIP-switch) CM-IWN.1P 1SVR760660R0200
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Ordering details - Coupling unit expansion for CM-IWN.xS/P
Rated control supply voltage = Nominal voltage Un of the distribution Type * Order code
measuring voltage system to be monitored
Passive device, no control 0-690 V AC / CM-IVN.S 1SVR750669R9400
supply voltage needed 0-1000 V DC CM-IVN.P 1SVR760669R9400

* S: screw connection
P: push-in / easy connect