ICM (Obsolete/Legacy Products)
ICM491
ICM (Obsolete/Legacy Products)
ICM491
Single-Phase Line Monitor
Designed in a small, easy-to-mount case, the ICM491 continuously monitors incoming line voltage for errors. When line power is appropriate, the ICM491 closes a set of N.O. contacts and lights a green LED. When incoming power is outside of user selected parameters, the N.C. contacts will close and a red LED will illuminate, indicating current fault conditions. This unit also interrogates the line during fault conditions to reduce nuisance trips from transients or compressor start ups- Protects against over/under voltage, rapid short-cycling and power interruptions
- Heavy duty SPDT relay output
- 5-second fault interrogation period
- Anti-short cycle time delay
- LED indicators
- Low-cost, single-phase equipment protection
Input
- Line Voltage: 95-135 VAC or 190-270 VAC (selectable)
- Maximum Operating Input: 142-275 VAC
- Line Frequency: 50-60 Hz
Output
- Type: Relay, energized upon acceptable conditions
- Form: SPDT, Single Pole, Double Throw
- Ratings:
- 6A @ 120 VAC resistive
- 5A @ 240 VAC resistive
Response Times
- Line Dropout: .05 seconds (typical)
- Line Voltage Sag: 5 seconds (typical)
- Turn On (sec): Based on minimum time selected
Lockout Delay Timer
- Dry Relay Contacts
- Time Delay: Adjusts from 6-600 seconds (+/- 10%)
Under Voltage Protection
- Voltage Dropout: Setpoint is -12%
- Voltage Pickup: Setpoint is -8%
Over Voltage Protection
- Voltage Dropout: Setpoint +12%
- Voltage Pickup: Setpoint +8%
Environment
- Operating Temperature: -40°F to +167°F (-40°C to +75°C)
Weight/Dimensions
- Weight: 0.35 lb.
- Height: 1.25″
- Width: 3″
- Length: 3.25″
A-1: EAC-401, EAC-402, EAC-403, EAC-404
Diversified: CV-100-RS, CV-200-RS15, CV-200-RS20
Wagner / DiversiTech: DSP-1
Recommended Alternative: ICM492D
