Emerson LM Series manual Standard Features Optional Features

Standard Features Optional Features

Unit Status Indicators

The unit has an integral status circuit that monitors the operational status of all modes of protection, including Line to Neutral, Line to Ground, and Neutral to Ground. In the unlikely event that protection is reduced,

the green LED will go out and the red LED will be lit. LED indication shall be provided internal and external to the product.

Enclosure

The unit is housed in a heavy duty, steel, NEMA 12 dust-tight, drip-tight enclosure.

Undervoltage Detection

System monitoring will indicate an undervoltage at 70% of nominal.

Phase and Power Loss Monitoring

System monitoring will indicate a loss of any phase or loss of power.

Noise Attentuation

The filter provides insertion loss up to 60 dB from 100 kHz to 100 MHz per 50 Ohm Insertion Loss Methodology from

Audible Alarm

The system is equipped with an audible alarm activated when summary alarm contacts are activated. An ON/OFF button is provided to silence the alarm, and an alarm push-to-test button to test the alarm function. A visible LED confirms whether alarm is on or disabled. Both buttons and the audible alarm are located on the panel’s front cover.

Agency Listing

The specified unit is UL 1449 (Second Edition) Listed, UL 1283 Listed, and CUL Listed. Control Concepts/Liebert is also company certified ISO 9001 for manufacturing, design, and service.

Warranty

A full five-year parts warranty.

Form C Dry Contacts

Two sets of electronically isolated form C dry contacts are provided, (two normally open, two normally closed) for remote monitoring.

Integral Fused Disconnect

A 200k AIC integral disconnect switch located within the system enclosure with an external manual operator.

Transient Counter

The system can be equipped with a transient counter which totals transient surges that deviate from the sine wave envelop by more than 125 volts. The counter is located on the unit's front cover and features an 8 digit LCD, lithium batteries (with 10-year life), and reset switches.

Remote Monitor Panel

A self contained, UL Listed monitoring panel. Input power to the monitoring panel is equipped with a 6-foot power cord with a 3 NEMA 5-15 plug.

The monitor has an audible alarm, red and green LEDs silence switch, and a test switch.

MIL Std. 220A.

Overcurrent Protection

All components are individually fused and unit is UL rated for 200k AIC for safe operation.

Life Cycle Testing

The system is life cycle tested to survive multiple 10kA, 20KV, IEEE C62.41 Category C3 transients with less than 5% degradation of clamping voltage. The minimum numbers of surges the unit shall be able to protect against are 8,000 per phase.

3