Emerson DRS Brochures and Data Sheets
DRS Series
Modular Surge Protective Device
Power Switching & Controls
For Business-Critical Continuity
™
The DRS Series Surge Protective Device
(SPD) is designed to be easily installed in
power and control panels using standard
DIN-rail mounting brackets. This series of
product offers 40,000 amps of both normal
and common mode surge protection. The
DRS series is available in single phase, split
phase, three phase (3 wires) and three
phase (4 wires) configurations.
Replaceable modules allow for easy
maintenance and mount directly into
the DRS base assembly, simplifying the
replacement process. The status of the
surge protector modules can be monitored
through the indicator lenses or remotely
through the alarm terminals.
Specifications
DRS Series
Nominal Discharge Current (8x20µs) In 20kA
Maximum Discharge Current (8x20µs) I
Nominal Voltage U
Maximum Continuous Operating Voltage U
Voltage Protection Level U
Response Time Ts 25ns
Relative Humidity 95%
Insulation Resistance >103 M
Temperature Range -40˚C to +85˚C
Degree of Protection IP20
Housing ABS / PA UL94V0
Warranty 5 years
40kA
max
n
c
p
120, 230, 240, 277, 346, 480, 600 volts
150, 320, 380, 420, 580, 680, 1000 volts
1.2 kV, 1.6 kV, 1.8 kV, 2.0 kV, 2.4 kV
Standard Features:
Effectively handle high-energy transients
on type TT, TN-C, TN-S, and TN-C-S
power systems.
SPD rated Type 2 in accordance with EN
61643-11; Class I & II in accordance with
IEC 61643-1.
Built-in thermal components disconnect
SPD from the power source to avoid
thermal runaway conditions.
Visual inspection windows on
each module provide continuous
status indication.
Three position terminals provide remote
status monitoring capability.
DIN-rail mounting and plug-in module
design allow for easy installation and
maintenance.
Gas tube module option for type TT
grounding systems
5 year warranty.
How to Specify the Appropriate Model
Example: DRS 120 3 1 Q
DRS Nominal Voltage # of Metal Oxide # of Gas Tube Higher Rated
(Un) Varistor Modules* Modules** Voltage***
(XXX) (X) (X) (Optional)
120 0 0 Q
230 1 1
240 2
277 3
346 4
480
600
* MOV modules are typically one module per phase and may be wired L-N, L-G or N-G.
** Gas tube modules typically used in the N-G mode for type TT grounding systems.
*** Certain applications require higher rated components in order to survive frequent voltage rises.
In this case, order a unit with a “Q” at the end of the part number.
Replacement modules available: Order DRS + Un + M (for MOV) or G (for Gas tube)
Typical MOV Model
Typical MOV/Gas Tube Model
Contact
Surge Protection
100 Emerson Parkway
Binghamton, NY 13905
T: 607-721-8840
T: 800-288-6169
F: 607-722-8713
E: SurgeTech@Emerson.com
Technical Support
800 288 6169 Toll-Free (U.S. & Canada Only)
607 721 8840 Phone (Outside U.S.)
607 722 8713 Fax
While every precaution has been taken to ensure accuracy and
completeness in this literature, Emerson Network Power
assumes no responsibility, and disclaims all liability for
damages resulting from use of this information or for any
errors or omissions.
© 2014 Emerson Network Power. All rights reserved
throughout the world. Specifications subject to change
without notice.
All names referred to are trademarks or registered trademarks
of their respective owners.
SL-22110 (R01/14) Printed in USA
Dimensional Data:
Mounting: Symetrical rail EN50022/DIN 46277-3
I/O Connections: By screw terminal 4-25mm
2
by connection bus
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™
.
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trademarks and service marks of Emerson
Electric Co. ©2014 Emerson Electric Co.
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