Allen Bradley 1746-N2B SLC 500 Slot Filler Module

FAQ

Q1: What is the 1746‑N2B module?
It is a slot filler module designed to occupy unused I/O slots in an Allen‑Bradley SLC 500 chassis.

Q2: What does a slot filler do?
It protects the backplane and internal electronics by preventing dust and debris from entering empty slots and helps maintain proper chassis airflow.

Q3: Does the 1746‑N2B perform any I/O functions?
No, it is a passive accessory and does not perform any logic, input, or output functions.

Q4: What voltage range is associated with this module?
Although passive, it is designed within the general SLC accessory range of ~10–30 V DC internal dummy circuitry.

Q5: How much backplane current does it draw?
It has a minimal backplane draw, typically around ~50 mA at 5 V DC.

Q6: What are the physical dimensions and weight?
Its approximate size matches standard SLC modules (~127 mm × 51 mm × 152 mm) and weighs about 0.09 kg (0.20 lbs).

Q7: What environmental conditions can it operate in?
It is rated to operate from 0 °C to 60 °C with 5 – 95 % non‑condensing humidity.

Q8: Is the 1746‑N2B still in production?
No, this slot filler is a discontinued legacy accessory for the SLC 500 platform.

1746-N2B Allen Bradley

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