Square D Digest 179

Industrial Relays

TypeX

Class 8501 / Refer to Catalog 8501CT9601

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Square D™ NEMA Style DC Relays DC Control Relays

• 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. Table 20.91: DC Control Relays Normally Open 5 A Convertible Instantaneous Contacts Control Relay Type [7] 0 XDO00 2 XDO20 4 XDO40 6 XDO60 8 XDO80 Table 20.92: 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%.

8501XDO40V53 Control Relay

DC Control Relays Dimensions (in./mm) A .25 6 2.2 3 5 7 1 . 1 2 2 8

3 .5 6

90 3 . 1 2 7 9

Prov . f or ( 2 ) # 8 /# 1 0 Mtg . Sc r ews

B 3 00 8 0 - 0 66

• 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 20.93: DC Timing Relays

Timed Convertible Contacts

Timing Relay [7]

8501XDO40XTE1V02 Timing Relay

Normally Open 5 A Convertible Instantaneous Contacts

Timing Mode

0.2–60s

5–180s

Type

Type

N.O.

N.C.

0 2 4 0 2 4

1 1 1 1 1 1

1 1 1 1 1 1

XDO00XTE1 XDO20XTE1 XDO40XTE1 XDO00XTD1 XDO20XTD1 XDO40XTD1

XDO00XTE2 XDO20XTE2 XDO40XTE2 XDO00XTD2 XDO20XTD2 XDO40XTD2

DC Timing Relays Dimensions (in./mm) 7.77 19 7 . 25 6 2 . 2 3 5 7 1 . 1 2 2 8

OnDelay

OffDelay

3 . 5 6

Table 20.94: DC Contact Ratings

9 0 3 . 1 2 7 9

DCRatings

Inductive

Resistive

Typeof Cartridge

B 3 00 8 0 - 0 7 5 A

Makeand Break Amperes

Make and Break Amperes 138VAMax.

Prov . f or ( 2 ) # 8 /# 1 0 Mtg . Sc r ews

Volts

NEMA Rating

Continuous Amperes

Continuous Amperes

20 RELAYS AND TIMERS

1.1 0.55

5 5 5

4 0.8

5 5 5

125 250 125

P600 P150

Standard

Overlapping LogicReed

1.1

4

— — 30 Vdc, 60 mA

—

—

—

• For AC ratings, see Table 20.88. NOTE: Do not use any 8501 Type XC4 Master Cartridges on any DC-operated device.

[7] Voltage code must be specified to order these products. Refer to Table 20.98 and insert the appropriate code as shown in Table 20.99.

20-40

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