Specifications

Electroswitch • 180 King Avenue • Weymouth, MA 02188 • TEL: [phone] • FAX: [phone] • www.electroswitch.com
65
ATR Annunciator Target Relay Improves Trip Indication with a
Highly Visible LED, Fast Response Time, Small Panel Footprint,
and Standard Three Hole Mounting Configuration
The Electroswitch Series ATR is a solid state Annunciator Target Relay designed for use in a
variety of utility applications. It provides a highly visible LED indication of a Trip operation and
activates other equipment within the system such as alarms, LORs, and other relay devices.
How it Works
The ATR accepts a 37-140VDC Trip input signal from a variety of devices. When a Trip signal is
received, the ATR performs two basic functions. First, it illuminates a bright LED indicating that
a Trip signal has indeed been received. Second, it closes two normally open auxiliary contacts
rated at 2 Amps @ 125VDC continuous (8A for 1 second). These contacts can be used to
activate lock-out relays or other auxiliary devices. An input signal, once received, is latched in
memory and is maintained even through power outages until manually reset.
The target LED is highly visible even when viewed from extreme angles. It is designed for long
life ( >100,000 hours) and available in a variety of colors (amber, red, blue, green, or white)
to help identify different functions or circuits.
Because the ATR is a solid state device it features a much shorter response time. It is less sen-
sitive to shock and vibration than electromechanical devices and is also dramatically smaller. A
traditional three hole mount configuration making installation simpler than alternative designs.
Theory of Operation
• See www.electroswitch.com
Benefits
• Highly Visible LED Target - Even at Extreme Angles
• Provides Clear Indication of a Trip
• Faster Response Time
• Saves Panel Space
• Traditional Three Hole Mount Configuration
• Reduced Purchase and Installation Cost
• Easy to Use…No Special Operator Training
Make The Electroswitch ATR with Lighted Target Part of Your
Trip Detection and Protection Scheme
Features
• Bright LED is Clearly Visible from all Viewing Angles in Front of the Panel
• Long Life LED (> 100,000 Hours), Available in Choice of Colors to Identify Different Functions
or Circuits – Amber, Red, Blue, Green, or White – Field Replaceable From the Front
• Save Valuable Panel Space. The Entire Package is less than 3.0" Square about 0.5" High
• Low Power Consumption – 125VDC @ 14 mA (37 to 140VDC operation range)
• 2 Form “A” Auxiliary Contacts Rated 2 Amp @ 125VDC Continuous and 12A for 1 Second
• User Definable Trip Response Time from 0.001 to 1.875 Seconds
• Trip Inputs Validated with High Reliability Digital Algorithm
• Operating Temperature: -20˚C to + 55˚C
• Traditional Three hole Mounting Arrangement
• Approvals – ANSI/IEEE C37.90.1-1995, ANSI/IEEE C37.90.2-1995
– UL, CSA and CE Pending
• Time Delay Option Available
• Dual Change of State Available
Ordering Information
Model Number Description
686-100A Voltage Sensing Annunciated Target Relay
with seal in of auxiliary contacts
686-110A Voltage Sensing Annunciated Target Relay
without seal in of auxiliary contacts
Consult factory for other models.
ATR
Annunciator Target Relays
NEW
PRODUCT
Model ATR-686-110 Model ATR-686-100
WIRING SCHEMATICS