Type X

Class 8501 / Refer to Catalog 8501CT9601

Square D™ NEMA Style AC Relays

8501XO40V02 AC Control Relay

 
 
 
 

8501XMO40V02 AC Master Relay

 
 
 
 

AC Control and Master Relays Dimensions

 
 
 
 

8501XO40XTE1V02 AC Timing Relay

Class 8501 Type X relays combine a rugged, heavy-duty design with modular construction for greater flexibility. They are ideal for applications where long life, high reliability, and ease of maintenance are important. The Type X family offers a complete line of relays and accessories for most control applications. The 8501X relay consists of a standard 4 pole base to which it is possible to add additional contacts, timer, and latch functionality. Instantaneous and Master contacts are converted from N.O. to N.C. by flipping the contact cartridge within the base. The 8501X relay can either be built from individual part numbers or ordered pre-assembled.


AC Control Relays

  • Straight-through wiring

  • Self-lifting pressure wire connectors

  • Plug-in contact cartridges for easy contact conversion and replacement

  • Replaceable coil

  • Contact conversion without removing terminal screws or wires

 

AC Control Relays (lots of 1)

No. of N.O. 10 A Convertible Instantaneous Contacts[1]

Type[1] [2]

 0

XO00  

 2

XO20  

 3

XO30  

 4

XO40  

 6

XO60  

 8

XO80  

10

XO1000 

12

XO1200 


AC Master Relays

  • 20 ampere contact rating due to use of master contact cartridges.

    [3]
  • Provisions for standard cartridges to be used in contact cavities not occupied by master cartridges in 2-8 pole AC relay.

AC Master Relays

No. of N.O. 20 A Convertible Contacts

Type[2] [4]

2

XMO20 

4

XMO40  

6

XMO60 

Dimension A (See Figure at Left) and Weights

No. of Poles

Dim. A

Shipping Weight, lb

in.

mm

0–4

3.95

100

2.0

6–8

5.16

131

2.3

10–12

6.36

162

2.7


AC Timing Relays

  • Easily convertible On or Off Delay

  • Convertible 1 N.O. and 1 N.C. timed contacts

  • Two adjustable timing ranges

  • Large knob for easy adjustment of time delay

  • Repeat accuracy well above ±10%

  • Off Delay mode times out even after loss of power

AC Timing Relays (lots of 1)

Timing Mode

No. of N.O. 10 A

Convertible Instantaneous Contacts

Timed
Convertible Contacts

Timing Relay

0.2–60 s

5–180 s

N.O.

N.C.

Type [2]

Type [2]

On Delay

0

1

1

XO00XTE1 

XO00XTE2  

2

1

1

XO20XTE1  

XO20XTE2  

4

1

1

XO40XTE1  

XO40XTE2  

Off Delay

0

1

1

XO00XTD1  

XO00XTD2  

2

1

1

XO20XTD1 

XO20XTD2  

4

1

1

XO40XTD1  

XO40XTD2  

AC Latching Relays

8501XO40XLV02 Latching Relay

  • Mechanical latch holds all contacts switched even after removal of power from replaceable latching coil.

  • Provides sequence memory in the event of power loss. Ideal for press control, process control, and punch presses.

  • Replaceable unlatch coil to switch contacts back to original state.

AC Latching Relays (lots of 1)

N.O. 10 A Convertible Instantaneous Contacts

Latching Relay

Type [2]

2

XO20XL  

3

XO30XL  

4

XO40XL  

6

XO60XL  

8

XO80XL  

AC Latching Relays Dimensions

Dimension A (See Figure at Left) and Weights

No. of Poles

Dim. A

Shipping Weight, lb

in.

mm

2–4

6.54

166

2.8

6–8

7.74

197

3.1

AC Contact Ratings

Type of
Cartridge

V

Inductive

35% Power Factor

Resistive

75% Power Factor

NEMA

Rating

Make

Break

Continuous Amperes

Make, Break and Continuous Amperes

A

VA

A

VA

Standard

or

Overlapping

120

A600

60

7200

6

720

10

10

240

30

3

480

15

1.5

600

12

1.2

Master[3]

A600

Same as standard cartridge above except substitute 20 A for the continuous ampere rating

Logic Reed

150 Vac, 150 mA, 8 W Maximum

Voltage Codes

AC Voltages - Hz

Code

12–60

V11

24–60

V01

24–50

V12

48–60

V18

48–50

V16

120–60/110–50

V02

208–60

V08

240–60/220–50

V03

277–60

V04

480–60/440–50

V06

600–60/550–50

V07

How to Order

To Order Specify:

Catalog Number

  • Class Number

  • Type Number

  • Voltage Code

Class

Type

Voltage Code

8501

XO40

V02


Approvals for Square D NEMA Style Relays

File: E78403
CCN: NKCR

File: 060905
Class: 3211 03

IEC 60947–1

Class 8501 / Refer to Catalog 8501CT9601

Square D™ NEMA Style DC Relays


DC Control Relays

8501XDO40V53 Control Relay

 
 
 

DC Control Relays Dimensions (in./mm)

 
 
 

8501XDO40XTE2V53 Timing Relay

 
 
 

DC Timing Relays Dimensions (in./mm)

  • Replaceable, highly reliable pure DC power plant: no economizing resistors, overlapping contacts or dual-wound coil.

  • Uses the same Type XB adder decks and attachments as the AC version.

  • Offers all the features of the AC relay.

  • Available in up to 8 poles.

  • All contact poles are usable since no overlapping contacts are needed.

DC Control Relays

Normally Open 5 A Convertible
Instantaneous Contacts

Control Relay

Type[5]

0

XDO00  

2

XDO20 

4

XDO40  

6

XDO60

8

XDO80 

Dimension A (See Figure at Left) and Weights

No. of Poles

Dim. A

Shipping Weight

lb.

in.

mm

0–4

5.17

131

3.1

6–8

6.37

162

3.4

10–12

7.60

193

3.8


DC Timing Relays

  • Easily convertible On Delay or Off Delay.

  • Two adjustable timing ranges.

  • Repeat accuracy well above ±10%.

  • Convertible 1 N.O. and 1 N.C. timed contacts.

  • Large knob for easy adjustment of time delay.

  • Off Delay mode times out even after loss of power.

DC Timing Relays

Timing
Mode

Normally
Open 5 A Convertible
Instantaneous Contacts

Timed
Convertible
Contacts

Timing Relay[5]

0.2–60 s

5–180 s

N.O.

N.C.

Type

Type

On Delay

0

1

1

XDO00XTE1  

XDO00XTE2  

2

1

1

XDO20XTE1  

XDO20XTE2  

4

1

1

XDO40XTE1  

XDO40XTE2  

Off Delay

0

1

1

XDO00XTD1  

XDO00XTD2  

2

1

1

XDO20XTD1  

XDO20XTD2  

4

1

1

XDO40XTD1  

XDO40XTD2  

DC Contact Ratings

Type of
Cartridge

DC Ratings

Volts

Inductive

Resistive

NEMA
Rating

Make and Break Amperes
138 VA Max.

Continuous Amperes

Make and Break Amperes

Continuous Amperes

Standard

125
250

P600

1.1
0.55

5
5

4
0.8

5
5

Overlapping

125

P150

1.1

5

4

5

Logic Reed

30 Vdc, 60 mA


note

Do not use any 8501 Type XC4 Master Cartridges on any DC-operated device.

DC Latching Relays

8501XDO40XDLV53 Latching Relay

 
 
 

DC Latching Relays Dimensions (in./mm)

 
 
 

8501XUDO40V53 Utility Relay

  • Mechanical latch holds all contacts switched even after removal of power from replaceable latching coil.

  • Provides sequence memory in the event of power loss.

  • Ideal for sequencing applications such as press control, process control and punch presses.

  • Replaceable unlatch coil to switch contacts back to original state.

DC Latching Relays

Normally Open 5 A Convertible
Instantaneous Contacts

Latching Relay [5]

Type

2

XDO20XDL  

4

XDO40XDL  

6

XDO60XDL  

8

XDO80XDL  


note

Unlatch coil is rated for intermittent duty and should be connected through a N.O. contact of the relay if the input signal is maintained. Order one more N.O. contact than the application requires to use as a coil clearing contact.

Dimension A (See Figure at Left) and Weights

No. of
Poles

Dim. A

Shipping
Weight, lb.

in.

mm

2–4

7.76

197

3.9

6–8

8.98

228

4.2


DC Utility Relays

Ideal for utility plant applications where reliable performance and a pure DC power plant is required. In addition to the Type XDO relay features, the Type XUDO provides:

  • Up to 12 poles N.O. or N.C.

  • Nominal 125 Vdc coil, capable of handling 140 Vdc continuously and picking up at 105 Vdc after having been operated at 140 Vdc continuously. Other voltages with comparable operating characteristics are available.

  • Enclosed device capable of operating in 145°F ambient.

DC Utility Relays

Number of 5 A Convertible Contacts

 Open Type[5]

N.O.

N.C.

Type

 4

 0

 0

 4

XUDO40  

XUDO04  

 8

 0

 0

 8

XUDO80  

XUDO08  

12

 0

 0

12

XUDO1200  

XUDO0012  

Voltage Codes—8501 XUDO and XDO Relays

DC Voltages for
8501 XUDO Relays ONLY

Code

DC Voltages for 8501 XDO Relays

Code

6

V50

6

V50

12

V51

12

V51

24

V53

24

V53

48

V56

32

V54

125

V63

48

V56

250

V67

72

V58

90

V59

115/125

V62

230/250

V66

How to Order

To Order Specify:

Catalog Number

  • Class Number

  • Type Number

  • Voltage Code

Class

Type

Voltage Code

8501

XDO40

V53

Class 8501 / Refer to Catalog 8501CT9601

Attachments and Accessories for Square D™ NEMA Style Relays

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  [6]

XDL [6]

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

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

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

DC Relay Coil Selection

Equipment To Be Serviced

Coil Prefix,

or Class

and Type

Hz

Suffix

(The complete coil number consists of prefix or the Class and Type, followed by suffix.)

Coil

Burden

Watts

Class

Type

6 V

12 V

18 V

24 V

32 V

48 V

64 V

72 V

90 V

110 V

115/125 V

220 V

230/250 V

8501

XD

9998 XD

19

28

34

37

40

46

49

52

55

58

67

18

XDL

9998 XDL

19

28

34B

37B

40B

46B

49B

52B

55B

58B

67B

50

XUD

9998 XUD

19

28

37

46

58 [7]

67[8]

16

AC Relay Coil Selection

Equipment To Be Serviced

Coil Prefix

or Class

and Type

Suffix

(The complete coil number consists of prefix or the Class and Type, followed by suffix.)

Coil Volt-Amperes

Class

Type

24 V

110-115 V

120 V

208 V

220 V

240 V

277 V

380 V

440 V

480 V

550 V

600 V

In-rush

Sealed

8501

XO,

XMO

9998 X [9]

60

23

44

51

52

53

55

62

65

148

23

50

24

44

52

53

62

65

143

25

Footnotes

  1. A maximum of 8 N.C. contacts is allowed on 9–12 pole relays.
  2. Voltage code must be specified to order these products. Refer to Voltage Codes and insert the code as shown in How to Order.
  3. Maximum of six 8501 Type XC4 master cartridges may be used on only 7 and 8 pole AC devices.
  4. Attachments not permitted on this relay.
  5. Voltage code must be specified to order these products. Refer to Voltage Codes—8501 XUDO and XDO Relays and insert the appropriate code as shown in How to Order.
  6. See Mechanical Latch Attachment Voltage Codes.
  7. 125 Vdc only
  8. Not dual rated—250 Vdc only
  9. To order an unlatch coil, add the letter L to the type number and the letter B to the suffix number. Example: for a 120 V 60 Hz unlatch coil, order a Class 9998 Type XL44B.

Was this helpful?