201A-AU-OT
Littelfuse Protection Relays, 201A Series

Galco will be closed Friday, July 3, for Independence Day.

Create or sign in to your account for the best pricing!

Your account pricing is now applied.

Toggle Nav
Search
My Cart
800-575-5562
Request Quotes
201A-AU-OT Littelfuse Protection Relays, 201A Series, Voltage Monitor, 3Ph, Plug-In,
MFG Item Number
201A-AU-OT
Littelfuse
main product photo

201A-AU-OT Littelfuse Protection Relays, 201A Series, Voltage Monitor, 3Ph, Plug-In,

MFG Item Number
201A-AU-OT
Littelfuse
Series
201A
More specs

Orders placed by 5:00pm Eastern time will ship today. If you would like to pick up your order, select Will Call during checkout if it is available.
Request Lead Time

Description

Protection Relays, 201A Series
Item #
201A-AU-OT
Voltage Monitor, 3Ph, Plug-In,

201A Series Information

  • Protects From Low Voltage
  • Protects From Reverse Phase
  • Diagnostic LED
  • Optional High Voltage Protection
  • 8‑Pin Plug‑In
The 201A is an auto ranging 8‑pin, plug‑in voltage monitor designed to protect 190‑480VAC, 3‑phase motors regardless of size. It is used to prevent damage caused by single‑phasing, low voltage, phase reversal and voltage unbalance conditions.

Links

Specifications

Specifications
Manufacturer Part Number 201A-AU-OT
Manufacturer Littelfuse
Product Series 201A
Family Series Littelfuse Protection Relays, 201A Series
Description Voltage Monitor, 3Ph, Plug-In, w/Adjustable Voltage Unbalance, Trip and Restart Delay, Includes Socket
Phase 3
Voltage 190-480 V
Line Voltage 190-480 V
Hi Pwr (Over Vltg) Trip Yes
Detection Rapid Cycling
Time Delay Trip (Sec) 1-30 s
Restart Delay (Sec) 1-500 s
Type of Display LED Status Indicator
Mounting Plug-In
Output Relay SPDT
Approvals CE, UL
Net Weight 0.52 lbs
Gross Weight 0.79 lbs
Alternatives
201A-AU
201A-AU
Littelfuse Protection Relays, 201A Series