Allen Bradley 1746-NR4 SLC 500 4‑Channel Analog Output Module

FAQ

Q1: What is the 1746‑NR4 module used for?
It is a 4‑channel discrete relay output module for Allen‑Bradley SLC 500 PLC systems.

Q2: How many outputs does it have and what type are they?
It has 4 relay Form A (normally open) outputs.

Q3: What output voltages can it switch?
Relays can switch 5 – 130 V DC or 24 – 240 V AC loads.

Q4: What is the maximum load current per output?
Each relay can handle up to 2 A of load current.

Q5: What are the physical dimensions and weight?
Approximate size is 127 mm × 51 mm × 152 mm and weight ~0.35 kg.

Q6: How fast does it respond to output commands?
Typical response time is around 10 ms.

Q7: What connection method does the module use?
It uses a removable 1746‑HT terminal block for field wiring.

Q8: Is the 1746‑NR4 still manufactured?
No, it has been discontinued and is considered a legacy SLC 500 module.

1746-NR4 Allen Bradley

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