Allen-Bradley 1734-OW4

Technical specifications

Manufacturer

Allen-Bradley

Manufacturer part no.

1734-OW4

Type

Digital output module

Application

I/O module

Used with

POINT I/O adapters and terminal bases

Temperature

IEC 60068-2-1 (Test Ad, Operating Cold), IEC 60068-2-2 (Test Bd, Operating Dry Heat), IEC 60068-2-14 (Test Nb, Operating Thermal Shock):

Relative humidity

IEC 60068-2-30 (Test Db, Unpackaged Damp Heat): 5…95% noncondensing

Vibration

IEC 60068-2-6 (Test Fc, Operating): 5 g @ 10…500 Hz

Shock, operating

IEC60068-2-27 (Test Ea, Unpackaged Shock): 30 g

Shock

IEC60068-2-27 (Test Ea, Unpackaged Shock): 50 g

Emissions

IEC 61000-6-4

North American

T4A

UKEX/ATEX temp

T4

Enclosure type

None (open-style)

Mounting type

DIN rail

Number of outputs

4 Form A isolated (normally open) electromechanical relays

Leakage current, off-state, max

0 mA Dry contact, no onboard snubbers

Contact rating

120/240V AC, 2.0 A @ 50/60 Hz 1800VA make, 180VA break 5…30V DC, 2.0 A, R150

Switching frequency, max

1 operation/3 s (0.3 Hz @ rated load)

Expected life of electrical contacts, min

100,000 operations @ rated load

POINTBus current, max

90 mA @ 5V DC

Power consumption, max

0.8 W

Power dissipation, max

0.5 W

Isolation voltage

250V, Type tested at 2550V DC for 60 s, field-side to system, and between contact sets

Pilot duty rating

R150

Terminal base unit

1734-TB, 1734-TBS, 1734-TB3, 1734-TB3S, 1734-TOP, 1734-TOPS, 1734-TOP3, or 1734-TOP3S

Wiring category

1 – on signal ports

Keyswitch position

7

Technical documents (1)

• Rockwell Automation POINT I/O selection guide 1734-SG001

Key features

• Four Form A isolated normally open relay outputs
• Contacts rated 2.0 A at 120/240V AC or 5…30V DC
• Dry contact outputs with no onboard snubbers
• Isolation voltage 250V, type tested at 2550V DC for 60 s
• Minimum contact life of 100,000 operations at rated load

About the Allen-Bradley 1734-OW4

The 1734-OW4 is a POINT I/O 4 point digital output module with four Form A isolated, normally open electromechanical relays. Contacts are rated 120/240V AC, 2.0 A at 50/60 Hz, or 5…30V DC, 2.0 A, with a pilot duty rating of R150. It draws up to 90 mA at 5V DC from the POINTBus, consumes up to 0.8 W and dissipates up to 0.5 W. It mounts on DIN rail on a 1734-TB, 1734-TBS, 1734-TB3, 1734-TB3S, 1734-TOP, 1734-TOPS, 1734-TOP3 or 1734-TOP3S terminal base, keyswitch position 7.

What is the 1734-OW4 used for?

It switches loads through four dry relay contacts in a POINT I/O system. Off-state leakage is 0 mA and the maximum switching frequency is 1 operation per 3 s (0.3 Hz) at rated load. Minimum electrical contact life is 100,000 operations at rated load.

Lifecycle and successor

Active (Rockwell Automation lifecycle status, checked 24 October 2026).

Before you order

What to photograph or confirm so the right unit is quoted.

Read the catalog number 1734-OW4, the series letter and the firmware revision from the label. Send us a photo of the label and we confirm the match before we quote.