What this module is
The CRT1B-ID04SP-1 is a 4-point digital input module in Omron's CRT1B series, designed for chassis mounting and rated IP54 — dust-protected and water-resistant. It terminates via a rectangular connector with wire leads, and carries CE approval.
Lifecycle and sourcing reality
This module is discontinued per Omron's product status. There is no official successor listed in the evidence. Sourcing is limited to surplus or broker channels — submit an RFQ for current availability and lead time.
Compatibility and mounting
Compatible with Omron CJ, CS, and NJ Series PLCs. The module mounts to a chassis and operates from -10°C to 55°C. The rectangular connector and wire leads suit fixed wiring in control panels.