Allen Bradley 1756-OB32 High‑density digital DC output module

FAQ

Q1: What is the primary purpose of the 1756‑OB32 module?
It provides 32 discrete DC output channels to switch field devices like relays, solenoids, indicators, and small actuators in automation systems.

Q2: What DC output voltage range does this module support?
It operates over approximately 10 – 31.2 V DC (nominal 12/24 V).

Q3: How much current can each output point deliver?
Each output can source up to about 0.35 A at 60 °C, with higher ratings (~0.5 A) at lower temperatures.

Q4: How are the outputs organized?
The module has 32 outputs arranged as two groups of 16 points each for high‑density output control.

Q5: Does this module require an external power supply?
Yes — DC output modules require an external 12/24 VDC supply for their outputs; the module itself does not supply field power.

Q6: What kind of wiring interface does this module use?
Field wiring is connected via removable terminal blocks such as the 1756‑TBCH or 1756‑TBS6H.

Q7: What are the environmental limits for this module?
It operates in industrial environments from 0 °C to 60 °C and can be stored from −40 °C to 85 °C with up to 95 % non‑condensing humidity.

Q8: What are the physical size and weight of the 1756‑OB32?
The module’s footprint is roughly 54 mm × 181 mm × 222 mm and it weighs about 0.34–0.36 kg.

1756-OB32 Allen Bradley

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