Square D Digest 179

Class I Division 2 Relays Refer to Catalog 8501CT1105

General Purpose Relays

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750H Hazardous Location Series

DPDT, PDT 12A Contact Rating

Contact Configuration

Coil Resistance (Ω)

Nominal Voltage 24 Vac, 50/60 Hz 120 Vac, 50/60 Hz

Standard Part Number

72

750XBXH-24A 750XBXH-120A 750XBXH-12D 750XBXH-24D 750XBXH-110D 750XCXH-120A 750XCXH-240A 750XCXH24D

1700

UL Listed when used with corresponding sockets

DPDT

12Vdc 24Vdc 110Vdc

120 470

12A

10000 1700

120 Vac, 50/60 Hz 240 Vac, 50/60 Hz

3PDT

7200

24Vdc

470

750H Specifications Part Number Contact Characteristics Terminal Style

750XBXH

750XCXH

Octal

Silver Alloy

Contact Material

LoadType

Standard

Contact Configuration

DPDT

3PDT

Carrying Current

12A

Maximum Switching Voltage

300V

12 A at 120 Vac, 50/60 Hz, 100,000 cycles 12 A at 240 Vac, 50/60 Hz, 100,000 cycles 12 A at 28 Vdc, 100,000 cycles 1/2 hp at 240 Vac, 50/60 Hz , 100,000 cycles 1/3 hp at 120 Vac, 50/60 Hz , 100,000 cycles

Resistive

Rated Switching Current Conforming to UL and ANSI/ ISA 12.12.01)

Motor

PilotDuty

B300 — 100,000 cycles

Minimum Switching Requirement Coil Characteristics Maximum Operating Voltage Maximum Pickup Voltage Drop-out Voltage Threshold

100 mA at 5 Vdc

110% (AC/DC)

750H Hazardous Location Relay

85% (AC); 80% (DC) 15% (AC); 10% (DC)

Average Consumption

2.75 VA at 60 Hz (AC); 1.2 W (DC)

Dimensions, in. (mm)

1.62 max. (41.2)

1.44 max. (36.5)

2.1 (52.5)

750H

20 RELAYS AND TIMERS

20-29

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