ICM Controls ICM491 - User Manual

ICM491
Single Phase Line Monitor
Reliable line voltage protection for single phase systems
7313 William Barry Blvd., North Syracuse, NY 13212
(Phone) 315-233-5266 (Toll Free) 800-365-5525
(Fax) 315-233-5276
www.icmcontrols.com
LII114-1
Protects against High/Low
voltage and rapid system
recycling, 95-270 VAC
operation, adjustable
anti-short cycle timer...
The ICM491 was specically designed
to guard equipment against damage
caused by under/over voltage conditions
and/or rapid system recycling.
DESCRIPTION
• 5-Second Interrogation Delay... helps
prevent nuisance tripping
• LED Indication... normal run and fault
indications
• 95-270 VAC Operation... in a single
model
• Integral Anti-Short Cycle
Protection... “Delay on break” circuit
provides adjustable (.1 to 10 minutes)
lockout delay to prevent rapid system
recycling; no external ASC timers
required
• Meets IEEE 587... A&B for transient
protection
FEATURES
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%
Environmental
• Operating Temperature: -40°F to +167°F
(-40°C to +75°C)
• Transient Protection: Meets IEEE 587
Standards for Categories A&B without false output
or degradation
– (6Kv 0.5 µs x 100 KHz Ring Wave)
– (6Kv 1.2 x 50 µs Impulse Wave)
Mechanical
• Mounting: Surface mount using (2) #8 screws
• Terminations: .25” male quick-connect
terminals
SPECIFICATIONS

ICM Controls ICM491 Specifications

General

Output Voltage	120 VAC
Frequency	60 Hz
VA Rating	1800 VA
Maximum Current	15 A
Number of Outlets	8
Surge Protection	Yes
Overload Protection	Yes
Material	Plastic
Input Voltage	120 VAC
Mounting	Wall
Mounting Type	Surface

Summary

Product Specifications

Input Parameters

Details line voltage range, maximum operating input, and line frequency.

Output and Response Times

Covers relay type, form, ratings, and timing for line dropout and sag.

Voltage Protection Settings

Specifies dropout and pickup percentages for under and over voltage conditions.

Lockout Delay Timer

Explains the adjustable delay for preventing rapid system recycling.

Environmental and Mechanical

Lists operating temperature, transient protection, mounting, and terminations.

Product Description

Product Features

Interrogation Delay

Explains the 5-second delay to prevent nuisance tripping.

LED Indication

Describes normal run and fault status indicators.

Anti-Short Cycle Protection

Details integral protection with adjustable lockout delay.

Transient Protection

Notes compliance with IEEE 587 standards for surge protection.