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For Questions or Technical Support Please Call Duncan MaCrae at 908-413-2927

DIVERSIFIED ELECTRONICS PHASE MONITOR | 460V | WITH RESET | SLA440ALER

Part Number 82-002-010
SKU: 82-002-010
Manufacturer part number: SLA440ALER
Manufacturer: Diversified
$272.31
  • Monitors Delta or Wye Systems
  • Monitors up to 480 VAC
  • Fixed, Lock Shaft, or Screwdriver Adjustment
  • Automatic Reset with Manual Option Available
  • Plug-in or Surface Mount Styles

With normal operating voltages applied in the proper ABC sequence, the internal relay will energize. When incorrect phase sequence or phase loss occurs, or the three‑phase voltages fall below the drop‑out voltages, the relay will de‑energize.

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 provide the required protection when properly adjusted.

Protects against:

  • Phase Loss
  • Under Voltage
  • Phase Reversal

Specifications for Diversified Electronics SLA440ALER

Item Number:   SLA440ALER
Brand:   Diversified Electronics
Item Category:   Protection Relays
Series:   SLA
  No. of Phases:   3
  Voltage Supported:   430 to 480 Volts
  Amperage Supported:   3 Amps
  Lo Pwr (Under Vltg) Trip:   Yes
  Ph Loss Detect:   Yes
  Ph Rvrse/Rotatn Detect:   Yes
  Time Delay Trip (Sec):   2
  Manual Reset:   Yes
  Type of Display:   LED Status Indicator
  Mounting:   Surface
  Certifications:   UL;CSA
  Picture No.:   DIVE_PROTRELY_SLA_E
  H x W x D (in.):   1.75 x 3.1 x 2.38
  • Monitors Delta or Wye Systems
  • Monitors up to 480 VAC
  • Fixed, Lock Shaft, or Screwdriver Adjustment
  • Automatic Reset with Manual Option Available
  • Plug-in or Surface Mount Styles

With normal operating voltages applied in the proper ABC sequence, the internal relay will energize. When incorrect phase sequence or phase loss occurs, or the three‑phase voltages fall below the drop‑out voltages, the relay will de‑energize.

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 provide the required protection when properly adjusted.

Protects against:

  • Phase Loss
  • Under Voltage
  • Phase Reversal

Specifications for Diversified Electronics SLA440ALER

Item Number:   SLA440ALER
Brand:   Diversified Electronics
Item Category:   Protection Relays
Series:   SLA
  No. of Phases:   3
  Voltage Supported:   430 to 480 Volts
  Amperage Supported:   3 Amps
  Lo Pwr (Under Vltg) Trip:   Yes
  Ph Loss Detect:   Yes
  Ph Rvrse/Rotatn Detect:   Yes
  Time Delay Trip (Sec):   2
  Manual Reset:   Yes
  Type of Display:   LED Status Indicator
  Mounting:   Surface
  Certifications:   UL;CSA
  Picture No.:   DIVE_PROTRELY_SLA_E
  H x W x D (in.):   1.75 x 3.1 x 2.38