Brochure

© 2017 Schneider Electric
All Rights Reserved
23-31
schneider-electric.us
Type X Industrial Relays
Class 8501 / Refer to Catalog 8501CT9601
Attachments and Accessories for Square D™ NEMA Style Relays
Table 23.108: Type X™ Relays
Description Type
Mechanical Latch Attachment—Mounts on any 2 through 8-pole relay (except XMO master relay). The Type XL and XDL latch attachments
are identical in size and mounting provisions. The Type XLAC latch attachment has a continuous-duty-rated coil which is replaceable. The
Type XDLDC latch attachment has an intermittent–rated coil (replaceable) and should be connected through a N.O. contact of the
basic relay if the input signal is maintained to the unlatch coil.
AC Latch Attachment
DC Latch Attachment
XL
[9]
XDL[9]
Pneumatic Timer Attachment—Mounts only on any 0 through 4-pole AC or DC relays (except XMO master relay). It provides 1 N.O. and
1 N.C. convertible timed contacts, which are the same Type XC1 cartridges used on the basic relay. Two timing ranges are available, and
conversion from On Delay to Off Delay or vice versa is easy.
Off Delay
0.2–60 seconds
5–180 seconds
On Delay
0.2–60 seconds
5–180 seconds
XTD1
XTD2
XTE1
XTE2
Timer Lockout Cover—Fits over the time delay adjustment knob of any Type XT timing attachment. The Lockout Cover is designed to
protect the time setting against accidental adjustment. It mounts directly to the timing attachment with two included screws.
XJ1
Adder Decks—Adder decks are used to expand the number of poles on a relay. The basic 4-pole relay can be easily converted to an 8-pole
or 12-pole relay by installing one or two adder decks. The Class 8501 Type XB20 comes with 2 convertible contact cartridges and will accept
2 additional convertible contact cartridges. The Class 8501 Type XB40 comes with 4 convertible contact cartridges. The same Type XB adder
deck is used for both the middle and upper decks of the AC or DC relay.
With 2 N.O. contact cartridges
XB20
With 4 N.O. contact cartridges
XB40
Contact Cartridges—The Type X relay offers 4 Types of contact cartridges. All are color–coded for visual identification of each Type.
Standard Cartridge—The standard cartridge, used for most applications, has a black case.
XC1
Overlapping Cartridge—Same NEMA Type A600 AC rating as standard cartridge and a NEMA Type P150 DC rating. When it is used in the
N.O. mode it will close early and when used in the N.C. mode it will open late. If two or more are used together, the N.O. contacts will close
before the N.C. contacts open as the relay picks up. Overlap also occurs during dropout. Overlapping cartridge has a red case.
XC2
May be ordered factory installed:
•
Substitute 1 N.O. and 1 N.C. overlapping cartridges for 2 standard cartridges.
•
Substitute 2 N.O. and 2 N.C. overlapping cartridges for 4 standard cartridges.
•
Substitute 3 N.O. and 3 N.C. overlapping cartridges for 6 standard cartridges.
•
Substitute 4 N.O. and 4 N.C. overlapping cartridges for 8 standard cartridges.
Form
Y1591
Y1592
Y1593
Y1594
Master Cartridge—Features the same contact ratings as the Type XC1 standard cartridge except it has a 20 ampere continuous current
rating instead of 10 amperes. It can be used in circuits where a master relay is required. Master cartridge has a blue case. Maximum of 6
master cartridges may be used on any 7 and 8-pole AC relays. Do not use any master cartridges on 9-12-pole AC or any DC-
operated devices. Note: If master cartridges are added to a standard relay, attachments (latch mechanism, timers, etc.) cannot be
used.
XC4
Mounting Track—The mounting track has pre-punched mounting holes to simplify mounting the track on the control panel. The relay
mounting screws are factory installed on the track so that the relays can be hung prior to tightening the screws.
9 in. long for 4 relays
18 in. long for 8 relays
27 in. long for 12 relays
36 in. long for 16 relays
XM4
XM8
XM12
XM16
Manual Test Tool—Provides a means of manually switching the contacts of a basic relay or timing relay and holding all contacts in their
switched state until the tool is removed. This simplifies the checking of control circuits without power on the coil or contacts.
XA1
Transient Suppressor—Consists of an R-C circuit designed to suppress coil generated transients to approximately 200 percent of peak
voltage. It is particularly useful when switching the Type X relay near solid state equipment. It is designed for use on coils up to
120 Vac.
XS1
NEMA 1 Enclosure—Formed from sheet steel to provide strength and rigidity. Two conduit knockouts are located in both the top and bottom
of the enclosure. The enclosure is furnished with self tapping screws for mounting the relay inside the enclosure. Accommodates a single 4
or 8-pole AC or DC relay, 12-pole AC relay, 4-pole AC latching relay, and 4-pole AC timing relay.
NOTE: The 4-pole DC latching relay, 4-pole DC timing relay, 8-pole AC and DC latching relays and 12-pole utility auxiliary relay will not fit.
Class
9991
Type
UE7
Table 23.109: Mechanical Latch Attachment Voltage Codes
AC Voltage
Code
DC Voltage
Code
24–60
24–50
120–60/110–50
208–60
240–60/220–50
277–60
480–60/440–50
600–60/550–50
V01
V12
V02
V08
V03
V04
V06
V07
6
12
18
24
48
72
90
115/125
230/250
V50
V51
V99
V53
V56
V58
V59
V62
V66
Table 23.110: How to Order
To Order Specify: Catalog Number
•
Class Number
•
Type Number
•
Voltage Code for mechanical latch attachment
•
Form for factory installed overlapping contacts
Class
Type
8501 XTE1
23
RELAYS AND TIMERS
[9] See Table 23.109.
6/20/2017