Specifications

Electroswitch • 180 King Avenue • Weymouth, MA 02188 • TEL: [phone] • FAX: [phone] • www.electroswitch.com
62
Features
• Available in Two or Three Position Versions
• Remote or Manual Operation
• Bidirectional Operation
• 60mSec Maximum Response Time
• Orange “Warning” Hot Line Tag
• No. of Decks
Series 31 Two Position – Up to 8
Three Position – Up to 6
Series 24 – Up to 10
• Contacts: 2 N/O, 2 N/C per Deck
Applications
• For Distribution Automation and Safety Tagging
• Expand SCADA Beyond Sub-Stations to Distribution Feeders
• Automate Power Distribution
• Remote Reclosure Cut-Off
• Enhance Breaker Control Schemes
• Improve Service Reliability
Electroswitch Tagging Relays allow remote or manual circuit breaker operation for automated
power distribution. They feature an eye-catching orange “Warning” hot line tag ensuring per-
sonnel safety in compliance with utility requirements.
Designed with multiple contacts housed in a compact unit, they provide an ideal solution to tag-
ging requirements in both new and existing systems. The three position version may be operated
to “Closed”, “Open” or “Tagged” position manually, electrically or remotely from SCADA. The two
position relay offers the same operations with “Normal” and “Tagged” positions. For custom
tags and engraving, contact the factory.
Major applications include expanded SCADA systems beyond substations to distribution feeders;
automated reclosure cut-off; and optimal breaker control schemes with improved service reliability.
The design and quality construction of these relays are based on an Electroswitch track record
spanning five decades of supplying reliable switches, relays and related control devices to the
utility industry.
Note: The Series 24 and 31 two position Tagging Relays are Class 1E utility products and comply
with the following Nuclear Standards: ANSI/IEEE C37.90, ANSI/IEEE C37.90.01, ANSI/IEEE
C37.98, ANSI/IEEE C37.105, ANSI/IEEE 323, ANSI/IEEE 344, ANSI/ASME NQA -1.
Specifications
• Available for Both Low Level and Direct Control Applications
• Low Level Control Recommended for All Microprocessor Applications
• Contact Ratings: (Interrupt)
Series 31: 10A-120VAC, 1A-125VDC
Series 24: 20A-120VAC, 3A-125VDC
• Operating Voltages: 48VDC, 125VDC Standard, Others Available
• Response Time: 60mSec maximum
• Coil Burden:
Series 31 Two Position:
9.7A @ 48V; 4.1A @ 125V
Series 31 Three Position:
13.4A @ 48V; 5.3A @ 125V
Series 24 Two Position:
9.9A @ 48V; 6.6A @ 125V
• Decks: Two Position:
Up to eight (Series 31)
Up to 10 (Series 24)
Three Position:
Up to six
TAGGING RELAYS
ORDERING INFORMATION
Series
92 = Series 24
93 = Series 31
Voltage/No. of Positions
CE
= 48VDC/2 Pos. (DC Only)
DE = 125VDC/2 Pos. (DC Only)
Consult factor
y for 3 position
part numbers or other voltages.
Personnel Protection Through
SCADA Control of NESC “Tag–Out” Function
Series 24
23 = 3
25 = 5
28 = 8
30 = 10
Series 31
23 = 3
26 = 6
28 = 8 (2 pos. only)
No. of Decks