Page 23-25 Download PDF
Home Online Catalog Products Tools and Resources Help

Square D > On-line Catalog > Products > Relays and Timers > NEMA Style Industrial Control Relays: Type X Relays	Search

Digest 174 Quick Page Locator Enter a page number from our paper catalog to go directly to that page in our online catalog. Example: 5 - 3

Section - Page -

NEMA Style Industrial Control Relays

Type X® Relays

Class 8501 / Refer to Catalog 8501CT9601

DC Control Relays

 

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

 

Table 23.118:

DC Control Relays

Normally Open Convertible Instantaneous Contacts	Control Relay
	Type	$ Price
0 2 4 6 8	XDO00 e XDO20 e XDO40 e XDO60e XDO80 e	171.00  209.00  248.00  285.00  323.00

DC Control Relay Utility Auxiliary Relay

 

Table 23.119:

Dimensions

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.

 

 

 

Table 23.120:

DC Timing Relays

Timing Mode	Normally Open Convertible Instantaneous Contacts	Timed Convertible Contacts		Timing Relay		$ Price
				0.2–60 s	5–180 s
		N.O.	N.C.	Type	Type
On Delay	0 2 4	1 1 1	1 1 1	XDO00XTE1 e XDO20XTE1 e XDO40XTE1 e	XDO00XTE2 e XDO20XTE2 e XDO40XTE2 e	437.00  476.00  513.00
Off Delay	0 2 4	1 1 1	1 1 1	XDO00XTD1 e XDO20XTD1 e XDO40XTD1 e	XDO00XTD2 e XDO20XTD2 e XDO40XTD2 e	437.00  476.00  513.00

 

Table 23.121:

DC Contact Ratings (for AC ratings, see page 23-24)

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

DC Latching Relays

 

● 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.

 

Table 23.122:

DC Latching Relays

Normally Open Convertible Instantaneous Contacts	Latching Relay
	Type	$ Price
2 4 6 8	XDO20XDL e XDO40XDL e XDO60XDL e XDO80XDL e	384.00  423.00  461.00  498.00

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.

 

Table 23.123:

Dimensions

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.

 

 

Table 23.124:

DC Utility Relays

Number of Convertible Contacts		Open Type
N.O.	N.C.	Type	$ Price
4 0	0 4	XUDO40 e XUDO04 e	309.00
8 0	0 8	XUDO80 e XUDO08 e	404.00
12 0	0 12	XUDO1200 e XUDO0012 e	498.00

 

Table 23.125:

Average Operating Times (in ms)

Device	Pick-Up	Drop-Out
DC Relay	37	21
DC Latching Relay	37	45

 

Table 23.126:

Voltage Codes—8501 XUDO and XDO Relays

DC Voltages for 8501 XUDO Relays ONLY	Code	DC Voltages for 8501 XDO Relays	Code
6  12  24  48 125 250	V50 V51 V53 V56 V63 V67	6  12  24  32  48  72  90 115/125 230/250	V50 V51 V53 V54 V56 V58 V59 V62 V66

e	Voltage code must be specified to order these products. Refer to Table 23.126 and insert the appropriate code as shown in Table 23.127: How to Order.

 

Table 23.127:

How to Order