Ross Controls 1523A4102 Energy Isolation Device

Ross Controls Y1523A4102 is a 15 Series L-O-X energy isolation device with EEZ-ON soft-start that combines OSHA‑compliant lockout capability with a controlled restart in a single valve body. The modular EEZ‑ON design features a yellow housing with a blue ON/OFF handle, integrates a 1/8 NPT sensing port for downstream pressure verification, and is configured for a 2–10 bar operating range as indicated by its model designation. As an energy isolation device, it blocks both the upstream air supply and downstream exhaust in the closed position, ensuring safe maintenance access and avoiding reliance on a separate downstream valve; this model is marketed as an energy isolation device rather than an emergency stop. The 4102 suffix identifies the specific porting/option set used in this series, and the EEZ‑ON feature provides a gradual pressure buildup on restart to minimize surge, making it well suited for automation lines requiring safe, controlled re-energization.