ARC SUPPRESION TECHNOLOGIES NOsparc MGXDC1F250 User manual

Arc Suppression Technologies
7900 International Drive, Suite 300, Bloomington, MN 55425-2562 USA
[phone] // [e-mail]
www.ArcSuppressionTechnologies.com
NOsparc®MGXDC1F250
USER MANUAL
This product is manufactured under the following patents: US 8,619,395; US 9,087,653;
US 9,423,442; US 9,508,501; US 9,847,185; US 10,134,536; US 10,566,150; US 10,727,005;
and US 10,727,010. Other patents pending.
Contact Arc Suppressor for DC Power
Relays and Contactors
IMPORTANT NOTES
This document provides information required to install a NOsparc arc suppressor.
You must read and understand this document before installing this device.
© 2020 Arc Suppression Technologies. All rights reserved.
104-0045C
If you have any trouble with your installation, please refer to Technical Support contact information below.
Full Terms & Conditions and Warranty Available at: www.ArcSuppressionTechnologies.com
TABLE OF CONTENTS
IMPORTANT NOTES ..............................................1
TRADEMARKS .................................................................. 1
APPLICABLE DOCUMENTS ............................................. 1
PART NUMBER & PRODUCT DESCRIPTION ................... 1
LIFE SUPPORT .................................................................. 1
LEGAL NOTICE ................................................................ 2
SAFETY INFORMATION OVERVIEW......................2
WARNINGS ...................................................................... 2
SAFETY............................................................................. 2
CAUTIONS ....................................................................... 2
NOTES.............................................................................. 3
DISCLAIMER ..........................................................3
MATERIAL CATEGORY POLICY .............................3
WARRANTY ...........................................................3
TECHNICAL SUPPORT ...........................................3
CONDITIONS FOR SERVICE............................................ 3
RETURN MATERIAL AUTHORIZATION & PROCESS ....... 3
DEFINITIONS .........................................................4
PRODUCT DESCRIPTION.......................................4
PRODUCT DIMENSIONS AND MOUNTING ..........4
PANEL MOUNTING ........................................................ 4
DIN RAIL MOUNTING...................................................... 4
SPECIFICATIONS ...................................................5
CIRCUIT BREAKER / CIRCUIT FUSE DE-RATINGS........... 5
SYSTEM WIRING....................................................6
WIRING DIAGRAM .......................................................... 6
IMPROPER WIRING .......................................................... 6
TRADEMARKS
“NOsparc” is a registered trademark of Arc Suppression
Technologies. All other trademarks are property of their
respective owners.
APPLICABLE DOCUMENTS
The UL Recognized Component mark
shown at right indicates that UL LLC has
certified the compliance of the NOsparc
units included in this manual as “Component - Auxiliary Devices”
for both Canada and the United States, per UL 508 Industrial
Control Equipment and CSA-C22.2 No. 14, Industrial !Control
Equipment.
PART NUMBER & PRODUCT DESCRIPTION
LIFE SUPPORT NOTICE
Arc Suppression Technologies products are specifically NOT
authorized for use as critical components in life support
devices or systems without the express written approval of the
Chief Executive Officer of Arc Suppression Technologies.
As used herein:
Life support devices or systems are devices or systems which
support or sustain life and whose failure to perform when
properly used in accordance with instructions for use
provided in the labeling can be reasonably expected to result
M
G
X
DC
1
F
250
Maximum Circuit Fuse Rating:
G =
5
0A
Wiring Requirements:
G
= contact(s) only
Product Case Model Code:
X = X-
Case
Power Type:
D
C = Direct
Current
Contact
per Product:
1 =
single
rail
Termination Style:
F = quick
-
connect tabs
Maximum Voltage:
250
= 250Vdc
File No.: E346457

Page 2 of 6!NOsparc MGXDC1F250 USER MANUAL
Arc Suppression Technologies www.ArcSuppressionTechnologies.com
in significant injury to the user.
A critical component is any component in a life support device
or system whose failure to perform can be reasonably
expected to cause the failure of the life support device or to
affect its safety or effectiveness.
LEGAL NOTICE
Information in this document is believed to be accurate and
is provided solely in connection with Arc Suppression
Technologies products.
Arc Suppression Technologies makes no warranties,
expressed or implied, regarding the information contained
herein.
Arc Suppression Technologies assumes no liability for errors
and omissions that may occur in this document.
Arc Suppression Technologies reserves the right to make
changes, corrections, modifications or improvements, to this
document and the product described herein at any time,
without notice.
This product is sold pursuant to Arc Suppression
Technologies’ terms and conditions of sale. This product is
resold under the terms and conditions of distributors,
representatives, and value-added resellers
Arc Suppression Technologies assumes no liability otherwise
arising from the application or use of any such information or
product for any infringement of patents or other intellectual
property rights owned by others, which may result from such
application, or use.
Purchasers are solely responsible for the choice, selection and
use of the product described herein, and Arc Suppression
Technologies assumes no liability whatsoever relating to the
choice, selection or use of this product.
No license, expressed or implied, by estoppel or otherwise,
to any intellectual property rights is granted under this
document. If any part of this document refers to any third
party products or services it shall not be deemed a license
grant by Arc Suppression Technologies for the use of such
third party products or services, or any intellectual property
contained herein or considered as a warranty covering the use
in any manner whatsoever of such third party products or
services or any intellectual property contained therein.
Arc Suppression Technologies only accepts products for
repair or return that are accompanied by a Return Material
Authorization number from either our company or the
appropriate distributor or sales representative.
Please refer to your original purchase agreement or contact
your distributor or sales representative for return policy
information.
SAFETY INFORMATION OVERVIEW
We use note, caution and warning symbols throughout this
book to draw your attention to important operational and
safety information.
“WARNING” describes an alert with information that is
important for protecting personnel and equipment from
damage.
“CAUTION” describes any condition that could result in
damage to the equipment or result in physical harm to
personnel.
The CAUTION or WARNING “SAFETY” alert symbol (an
exclamation mark in a triangle) precedes a general
caution or warning statement. It describes safety
requirements to meet local, national and
international standards.
The Electrical Shock Hazard CAUTION OR WARNING
symbol, (a lightning bolt in a triangle) precedes an
electric shock hazard. It describes a potential
electrical shock hazard which can result in personal
injury or death.
“NOTE” describes any item of interest to the user, owner, or
operator.
WARNINGS
Disconnect all power to circuits and panels where
this product is about to be installed or when
installing this product.
Follow extreme caution when applying NOsparc to trip
and close contacts or in circuits containing elements
that can be energized by a 1/2 power cycle pulse.
This User Manual must be thoroughly understood and
accurately followed to avoid unintended equipment operation.
The assembly must conform to National Electric
Code (NEC) safety standards, as well as locally
applicable codes. Failure to do so could result in
personal injury or loss of life. See the product rating
curve for wire gauge selection, ambient
temperature and current restrictions.
Follow extreme caution when conducting short
cycle time tests, especially below the maximum
rated cycle time for the associated relay; and
NEVER LESS THAN A 16s CYCLE TIME. Even at significantly
reduced power levels the relay contacts become extremely
hot due to high current densities at the point of contact
constriction just before the contact breaks open. Always
follow the relay manufacturers specifications and requirements
and DO NOT CYCLE CONTACTS MORE THAN 225 TIMES PER
HOUR.
Only authorized and qualified personnel should
install and service the NOsparc MGXDC1F250.
Failure to comply with these recommendations
may result in damage to equipment and property
and injury to personnel.
Always test the function and performance of NOsparc in the
intended application.
An arc suppressor DOES NOT eliminate arcing,
therefore, NOsparc will not eliminate hazards
associated with electrical current contact arcing.
SAFETY
All creepage distances and clearances of NOsparc have been
designed to meet requirements of safety standards.
When using NOsparc MGXDC1F250, basic safety precautions
should always be followed to reduce risk of fire, electric shock,
and injury to persons. When installing NOsparc into your
system, make sure that the Quick Connect Terminal
connector is properly crimped, terminated, insulated and that
the proper wire gauge is used and that the connector is
securely seated. Incorrect application or termination can
result in harmful or fatal electrical shock or component damage.
CAUTIONS
The NOsparc will pass a leakage current (see specifications)
even though the contacts across which it is connected are
open (similar to leakage present with snubber use). This
capacitive leakage current can be sufficient to turn-on some
solid state and electromechanical relays, or to cause electric
shock to personnel. Therefore:
– The NOsparc must never be connected across relay, contactor, or
snap action switch contacts driving high impedance loads.

NOsparc MGXDC1F250 USER MANUAL !Page 3 of 6
www.ArcSuppressionTechnologies.com Arc Suppression Technologies
– Inductive
– Motor
– Tungsten
– Pulse width modulated (PWM)
– Variable Frequency Drive (VFD)
– Safety interlocks
– Thermal limits
– The NOsparc must never be connected across relay, contactor, or
snap action switch contacts used for galvanic/safety isolation.
Proper care must be taken when handling and installing
NOsparc MGXDC1F250.
Never plug or unplug NOsparc while powered.
Do not connect NOsparc directly to power!
Use caution when installing or modifying power connections.
NOTES
Only connect NOsparc across the contacts of the power
switching relay or contactor!
NOsparc capabilities will be fully effective even under mixed
load conditions.
NOsparc has been designed to support the following DC power
loads:
– General purpose
– Resistive
– Capacitive
DO NOT use NOsparc DC products for AC power applications.
DO NOT use NOsparc on the following power circuits:
– Non-sinusoidal
– Phase controlled
DO NOT connect NOsparc across the following components:
– Fuses
– Circuit breakers
DO NOT use NOsparc either above or below its ratings or
specifications.
DO NOT operate the contacts to which the NOsparc is
attached above or below their ratings or specifications.
DISCLAIMER
All product, product specifications and data are subject to
change without notice to improve reliability, function or design
or otherwise.
Arc Suppression Technologies, LLC, its affiliates, agents, and
employees, and all persons acting on its or their behalf
(collectively, “Arc Suppression Technologies”), disclaim any
and all liability for any errors, inaccuracies, or incompleteness
contained in this User Manual or in any other disclosure relating
to any product.
Arc suppression Technologies makes no warranty,
representation or guarantee regarding the suitability of the
products for any particular purpose or the continuing
production of any product. To the maximum extent permitted
by applicable law, Arc Suppression Technologies disclaims (i)
any and all liability arising out of the application or use of any
product, (ii) any and all liability, including without limitation
special, consequential or incidental damages, and (iii) any and
all implied warranties, including warranties of fitness for
particular purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain
types of applications are based on Arc Suppression
Technologies’ knowledge of typical requirements that are
often placed on Arc Suppression Technologies products in
generic applications. Such statements are not binding
statements about the suitability of products for a particular
application. It is the customer’s responsibility to validate that a
particular product with the properties described in the product
specification is suitable for use in a particular application.
Parameters provided in data sheets and/or specifications may
vary in different applications and performance may vary over
time. All operating parameters, including typical parameters,
must be validated for each customer application by the
customer’s technical experts. Product specifications do not
expand or otherwise modify Arc Suppression Technologies’
terms and conditions of purchase, including but not limited to
the warranty expressed therein.
Except as expressly indicated in writing, Arc Suppression
Technologies products are not designed for use in medical,
life-saving, or life-sustaining applications or for any other
application in which the failure of the Arc Suppression
Technologies product could result in personal injury or death.
Customers using or selling Arc Suppression Technologies
products not expressly indicated for use in such applications do
so at their own risk.
MATERIAL CATEGORY POLICY
Arc Suppression Technologies, LLC hereby certifies that all its
products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive
2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain
hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
WARRANTY
NOsparc arc suppressors are manufactured to high quality
standards and backed by a warranty that is included in our
Terms and Conditions of Sale that can be found at our
website:
http://www.arcsuppressiontechnologies.com/where-to-
buy/terms-and-conditions-of-sale/
TECHNICAL SUPPORT
Please contact your distributor or sales representative with
technical support and product support questions. Have the
NOsparc model number available when contacting your
representative.
In certain circumstances, direct product support from Arc
Suppression Technologies may be reached via the following
communication methods:
[email protected]
www.arcsuppressiontechnologies.com/contact-us/support/
Phone [phone]
CONDITIONS FOR SERVICE
In the event of a product malfunction, Arc Suppression Technologies or
an authorized agent should perform all repairs to a NOsparc arc
suppressor. It is the responsibility of users requiring service to
report the need for service to their distributor or sales representative.
Any components, devices or other equipment used with or
adjacent to a NOsparc arc suppressor is the sole responsibility
of the end user and not of Arc Suppression Technologies or any
of its agents, resellers, representatives or distributors.
RETURN MATERIAL AUTHORIZATION & PROCESS
1. Authorization prior to returning product is required. Please
refer to your original purchase agreement or contact your
distributor or sales representative for an RMA number and
instructions before returning product.
2. After we receive your return, we will examine it and try to
verify the reason for returning it.
3. In cases of manufacturing defect, we will enter a
replacement order or issue credit for product returned. In
cases of customer misuse, we will request a purchase order
to provide replacement product.
4. To return products that are not defective, goods must be
in new condition, in the original boxes and they must be

Page 4 of 6!NOsparc MGXDC1F250 USER MANUAL
Arc Suppression Technologies www.ArcSuppressionTechnologies.com
returned within 120 days of receipt. A 20 percent restocking
charge is applied for all returned stock.
5. Arc Suppression Technologies reserves the right to charge
for no trouble found (NTF) returns.
DEFINITIONS
Arc Current .............Plasma flow supported between open
contacts
Arc Suppression
Duration ..................Time during which the electrical current
contact arc is arrested
Arc Suppressor .......Device designed to reduce contact
arcing
Break .......................Action of a contact which transitions from
close to open
Bounce ....................One or more brief transition(s) to the
OPEN state as the contact is closing or to
the CLOSE state as the contact is
opening
Break Current ......... Contact current during Break
Cycle Time ..............Time between successive ON or OFF
contact states
Inductive Load .......Motor or transformer form the main part
of the load
Inrush Current ........Resulting turn-on current when powering
an inductive, capacitive or tungsten load
Inrush Current
Limiter .....................Device intended to limit the amount of
turn-on current when powering an
inductive, capacitive or tungsten load
Make .......................Action of a contact which transitions from
open to close
Make Current ......... Contact current during Make
MOV ........................Metal Oxide Varistor
MTBF ......................Mean-Time-Between-Failures
Power-On
Passthrough ............Current passing through the arc
suppressor during initial power-up
RC Snubber ............ Device with resistor and capacitor in
series across contact
Snubber ..................Device designed to limit voltage rise
times
Suppression ............Action of minimization of undesired
event
Varistor Clamping
Voltage ...................Voltage at which steady state current
through the arc suppressor is ≥1mA
Maximum Varistor
DC Voltage .............Maximum allowed voltage across the arc
suppressor (NOT operating voltage)
PRODUCT DESCRIPTION
The MGXDC1F250 contact arc suppressor (DC power applications)
protects, cleans, and restores the contact points of relays and
contactors. This improves their overall performance and extends
contact life to the mechanical life of the relay or contactor.
The MGXDC1F250 arc suppressor is designed to suppress
contact arcing from 12Vdc to 250Vdc. It connects across the
contact terminals on existing products and equipment using
only two wires.
In simple terms, NOsparc operates as follows:
1. NOsparc detects the occurrence of an arc event.
2. NOsparc activates to suppress the arc.
3. NOsparc deactivates when the contacts are open and
suppression is not required.
4. NOsparc is continuously protected by over-voltage suppression.
PRODUCT DIMENSIONS AND MOUNTING
NOsparc MGXDC1F250 dimensions:
PANEL MOUNTING
Panel mounting of an arc suppressor can be accomplished
using a #6 screw through the two mounting holes.
DIN RAIL MOUNTING
Optional DIN rail mounting (shown left) of up to three (3) stacked
MGXDC1F250 products can be accomplished by adding a single
DIN rail mounting adaptor (NOT PROVIDED), with a #6 screw to
each side of the single arc suppressor or stacked arc suppressors.
Accepts a 1in #6 screw for two (2) stacked NOsparc units or a 1¾in
#6 screw for three (3) stacked NOsparc units.
Above is an example of two (2) MGXDC1F250 products on
DIN rail clips.
Below is just one example of many DIN Mounting Clips that are
available from a variety of suppliers.
(The example below of an appropriate
plastic DIN Rail Mounting Clip is
available from Digikey with the part
number: 277-2296-ND).
Some NOsparc distributors also carry a 3-product mounting
kit containing two (2) DIN clips and two (2) screws. Contact
your distributor for details.
|
Copyright © 1995-2014, Digi-Key Corporation.
All Rights Reserved.
701 Brooks Avenue South,
Keywords:
In stock
Lead free
RoHS Compliant
Product Index > Hardware, Fasteners, Accessories > Accessories > 1201578
All prices are in US dollars.
Digi-Key Part Number 277-2296-ND Price
Break
Unit
Price
Extended
Price
11.21000 1.21
10 1.13000 11 .30
50 1.03960 51.98
100 0.96050 96.05
250 0.91532 228.83
500 0.85880 429.40
Quantity Available Digi-Key Stock: 5,386
Can ship immediately
Manufacturer Phoenix Contact
Manufacturer Part Number
1201578
Description DINRAIL ADAPTER
UNIVERSAL
Lead Free Status / RoHS
Status Lead free / RoHS Compliant
Quantity Item Number Customer Reference Image shown is a representation only.
Exact specifications should be obtained
from the product data sheet.
When requested quantity exceeds displayed pricing table quantities, a lesser unit price may appear on your order.
You ma y sub mit a request for quotation on quantities which are greater than those displayed in the pricing table.
Datasheets 1201578
Product Photos 1201578
Standard Package 10
Category Hardware, Fastene rs, Accessories
Family Accessories
Series CLIPLINE
Hardware Type Adapt er
Specifications 10.0mm x 43.0mm x 19.0mm
For Use With/Relate d Products Din Rail Track
Dynamic Catalog Clipline Serie s
Other Names 12 01 57 8
12 01 57 8-ND
1201578-ND
277-2296
USA 10
USA10
21:57:34 7/30/2014
1201578 Phoenix Contact | 277-2296-ND | DigiKey http://www.digikey.com/product-detail/en/1201578/277-2296-ND/290934
1 of 2
07/30/14 9:57 PM

NOsparc MGXDC1F250 USER MANUAL !Page 5 of 6
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SPECIFICATIONS
CONTACT Specifications
ABSOLUTE MAXIMUM CURRENT
RATING
75A – This absolute maximum current rating also represents the maximum allowable Locked Rotor Amperage
(LRA) for motor loads and the cold filament inrush current for tungsten loads
ARC SUPPRESSION
duration: 1ms (typical)
CIRCUITS (CONTACTS)
one (1) NOsparc per contact (multiple NOsparc units required for multi-contact relays)
CIRCUIT BREAKER / FUSE (MAXIMUM)
50A for resistive loads (see Safe Operating Area charts below for more detail)
CLAMPING VOLTAGE
330V (typical at 1 mA)
CYCLING
maximum cycle time: per relay specifications (DO NOT EXCEED relay or contactor operating specs)
LEAKAGE CURRENT
0.5mA (nominal)
OPERATING VOLTAGE
12Vdc to 250Vdc
TERMINATION
across contacts: two (2) 0.250” insulated quick connect terminals
GENERAL Specifications
DIMENSIONS
length: 2.380in (6.045cm) x width: 1.070in (2.718cm) x height: 0.740in (1.880cm)
ENVIRONMENTAL
operating temperature: -40°C to 85°C (-40°F to 185°F), storage temperature: -50°C to 125°C (-58°F to 257°F),
humidity: 5% to 95% (non-condensing)
MOUNTING
orientation: any number of holes: two (2) hole diameter: 0.150in (#6 screw) (3.81mm)
MTBF / RELIABILITY
800,000 hours (MIL-HDBK-217F)
POWER-ON
load current passthrough: 1ms
POWER TYPE
DC (direct current)
WEIGHT
1oz (28g)
WIRE GAUGE
wire length between NOsparc and contact terminals: 0in to 24in: #14AWG (minimum); 24in to 36in: #12AWG (minimum)
NOTE: DO NOT use wire lengths over 3 feet
CIRCUIT BREAKER / CIRCUIT FUSE DE-RATINGS
The chart (right) depicts the circuit breaker / circuit fuse Safe Operating Area (SOA) for different loads.

Page 6 of 6!NOsparc MGXDC1F250 USER MANUAL
Arc Suppression Technologies www.ArcSuppressionTechnologies.com
SYSTEM WIRING
Each NOsparc arc suppressor has two male quick connect terminals which must mate with two properly crimped female quick connect
terminals.
In order to provide effective arc suppression, the two wires between NOsparc arc suppressor and the relay, contactor, or snap action
switch contact terminals should be as short as possible. One foot or less of wire length is ideal; lengths over 3 feet are NOT
recommended.
If longer cable lengths are needed, then the wire gauge must be increased according to the following recommendation based on the
length of wire between NOsparc arc suppressor terminals and the contact terminals:
– #14AWG (minimum) for less than 24in of wire
– #12AWG (minimum) for 24in to 36in of wire
WIRING DIAGRAM
Above: detailed wiring diagram.
IMPROPER WIRING
Only connect NOsparc across the contacts of the power switching relay or contactor! DO NOT connect NOsparc across the Load, Coil, or
Power!
Left:
IMPROPER
NOsparc wiring across LOAD, across POWER, and across COIL.
Arc Suppression Technologies
7900 International Drive, Suite 300, Bloomington, MN 55425-2562 USA
[phone] // [email protected]
www.ArcSuppressionTechnologies.com
Above: simplified wiring diagram showing a NOsparc
MGXDC1F250 arc suppressor connected across the
contacts of a relay or contactor.