SLA-440-ALE datasheet, PDF - EEWORLD Datasheet

SLA-440-ALE: DescriptionDiversified Electronics; File Size218KB，3 Pages; ManufacturerETC2

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Diversified Electronics

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800.727.5646

atcdiversified.com

Diversified Electronics

SLA Series

The ATC Diversified SLA Series is designed to protect 3-phase equipment

against

PHASE LOSS, UNDER VOLTAGE,

and

PHASE REVERSAL

conditions.

With normal operating voltages applied in the proper ABC sequence, the

internal relay will energize (PICK-UP). When incorrect phase sequence or

phase loss occurs or the three-phase voltages fall below the drop out

voltages, the relay will de-energize (DROP-OUT). On models featuring

indicators, the LED glows when all line conditions are normal.

Both Delta and Wye systems may be monitored.

In Wye systems, connec-

tions to neutral are NOT required.

For UL Listed units, with field wiring terminals, copper wire with

60°/ 75°C rating must be used for control circuitry connections.

NOTE: When a phase is lost while the motor is running, a condition known as

regeneration occurs where a voltage is induced into the open phase nearly

equal in magnitude to the normal phase-to-phase voltage. However, with the

exception of lightly loaded motors, enough change is detected by the SLA to pro-

vide the required protection when properly adjusted.

STYLE “A”

STYLE “N”

STYLE “E”

\\\

SPECIFICATIONS

DROP-OUT

VOLTAGE

1 Ø Low

3 Ø Low

Operate

Release

83% of Nominal

90% of Nominal

250 mSEC

0.5 SEC

1.0 SEC

2.0 SEC

60 mSEC

0.5 SEC

• Available up to 480 VAC

• Delta or Wye Systems

• Fixed, Lock Shaft, or

Screwdriver Adjustment

• Several Enclosure Styles

TYPICAL APPLICATIONS:

• Air Handlers

• Computer Power Protection

• Conveyor Drive

• Water Waste & Sewage

Machinery

• Oil & Gas Pumps

• Sawmill & Woodpump

Machinery

• Power Substation

Pha

Monitors

Models Up to 300 VAC

PROTECTS 3-PHASE

EQUIPMENT AGAINST:

• Phase Loss

• Under Voltage

• Phase Reversal

RESPONSE TIMES

STYLE “A” & “E”

Models Over 300 VAC

Operate

Release

RESPONSE TIMES

STYLE “N”

Operate

Release

• Automatic Transfer Switching

for Monitoring Emergency

Power Supplies

• Irrigation Pumps

• Lift Station Pumps

• Robotics Equipment

• Elevator Drives

• Commercial/Industrial Air

Conditioning & Refrigeration

Compressors

Style “A” 3 VA (approx.)

POWER

REQUIRED

Style “E”

Models up to 300 VAC:

3 VA (max.)

Models over 300 VAC:

7 VA (max.)

Models over 500 VAC:

3 VA (max.)

Style “N” 3 VA (max.)

OPERATING

VOLTAGE

RESET

INDICATOR LED

OUTPUT RATING

PHASE

SEQUENCE

TEMPERATURE

RATING

U.S. PATENT

NUMBER

WEIGHT

See Ordering Information

Automatic (Manual Optional)

Glows when all conditions are Normal

(On Applicable Models)

SPDT (style “A” and “N”)

DPDT (style “E”)

ABC (Will Not Operate CBA)

Operate

Storage

3,611,050

Style “A” NET: 2.24 oz Shipping: 2.56 oz

Style “E” NET: 4.8 oz Shipping: 5.76 oz

Style “N” NET: 5.3 oz Shipping: 5.6 oz

32° to +131°F (0° to +55°C)

-49° to 185°F (-45° to +85°C)

MODEL NUMBER

> > > > > >

SLA

Operating Voltage

See Ordering Information

Type of Operation

Fixed

Lock Shaft Adjusted

Screwdriver Adjusted

Enclosure

Style

Octal Plug-In, Dust Cover A

Blade Plug-In, Dust Cover B

Surface Mounted, #8 Screw Terminals E

Surface Mounted, 1/4" Quick Disconnect Terminals N

Options

Add R Suffix when manual reset is required, R

(available only in style “E” enclosure)

Plug-In models are UL listed only when used with

RB-08 relay socket.

215

Phase Voltage Monitors

// SLA Series

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