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Compact grey industrial module with spring terminals and M8 port

Sick

SICK FX3-CPU000000 Main Module electrician tool

SKU CH-ACY4-CNDTK

Safety main module rated SIL3 and PL e with 24 V DC supply, RS-232 diagnostics, spring terminals and 2.5 W consumption

  • SIL3 and PL e ratings enable safety-critical applications
  • Software configuration via Flexi Soft Designer simplifies setup
  • 24 V DC supply with 2.5 W consumption reduces power needs
  • Compact 22.5 mm × 96.5 mm × 120.6 mm fits tight panels
  • Spring terminals and RS-232 M8 port speed up wiring

Safety module for industrial machinery

The SICK FX3-CPU000000 main module serves as the central logic unit in a Flexi Soft safety system. It monitors safety devices such as emergency stops and light curtains to achieve Performance Level e and SIL3. The unit is configured via Flexi Soft Designer software through an RS-232 interface. It requires a separate system plug for power and I/O connections.

Upgrading from relay-based safety logic

This module replaces hard-wired safety relays with programmable logic, reducing wiring effort and enabling easier modification of safety functions. The jump is worth it when machinery requires multiple safety zones, complex muting sequences or frequent reconfiguration. It also supports a 20-year mission time for long-term compliance.

Check supply voltage and configuration tools

Verify the control cabinet provides 24 V DC within the 16.8 V to 30 V range from a PELV or SELV source. Ensure an RS-232 cable with an M8 4-pin connector is available for the configuration and diagnostics port. Remember to order the required system plug separately as it is not included.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $217.99
Pricier than about 81% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSICK
Model nameSICK FX3-CPU000000

Questions about this item

What are the module's width, height and depth for DIN-rail spacing?

The housing measures 22.5 mm wide, 96.5 mm high and 120.6 mm deep, so allow that envelope on the rail.

Which connector and cable do I need for the RS-232 configuration port?

Use a 4-pin M8 female plug on the module side; the mating cable is not included and must be sourced separately.

After how many years must the unit be replaced to maintain SIL3 / PL e compliance?

The certified mission time is 20 years; plan replacement at or before that point to keep the safety rating valid.

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