MS24140 Relays, Electromagnetic, 50 Amperes, 1 Pst N.O., Type I, Hermetically Sealed

Pages 1 - 2 - 3 - 4 - 5

MS24140M

TABLE I. 0ash numbers and general characteristics. 11

MS24140-

Type

Coil

Terminal type

Mounting or mating socket

Auxiliary

contacts

Maximum

weight in pounds 21

Stud

Flange

None

Yes

.95

1.10

11 0ash numbers A1 and A2 have been cancelled without replacement.

21 Weights include covers and barriers.

TABLE II. Rated contact load (amperes per pole) case grounded.

Type of load	Life operat ing cycles 3 x 10	28 V dc				115 V ac, 1 phase				1151200 V ac, 3 phase 11
		Main		Aux		Main		Aux		Main		Aux
		NO	NC	NO	NC	400 Hz	60 Hz	400 Hz	60 Hz	400 Hz	60 Hz	400 Hz	60 Hz
Resistive	50	50		5	5	50		5
Inductive	10	50		5	5	50		5
Motor	50	50				50
Lamp	50	25		.75	.75	10 21		.75
Transfer load 31
Mechanical life reduced current	100	12.5		1.25	1.25	1.25		1.25
Mixed loads	50	5		Per	spec	5

11 Absence of value indicates relay is not rated for 3 phase application.

21 Test requirement: 100 amperes inrush current with 2 seconds off-time.

31 Transfer load indicates relay is suitable for transfer between unsynchronized ac power supplies at rating indicated.

TABLE III. Operating characteristics.

11 CAUTION: Use of any coil voltage less than rated coil voltage will compromise the operation of the relay.

21 Over the temperature range.

31 With rated coil voltage.

41 From rated coil voltage.