Warom BPC-A-W Safety Barrier for Explosion-proof Keyboard and Mouse

The WAROM BPC-A-W is a wall-mounted intrinsic safety (IS) barrier designed to enable safe operation of standard keyboards and mice in hazardous areas (Zone 1/2, Zone 21/22). It provides energy limitation to prevent ignition risks while ensuring reliable signal transmission between safe and explosive atmospheres.

Key Features & Specifications

1. Safety & Certifications

Explosion Protection Standards:

ATEX Certified (II 3G Ex nA IIC T4 Gc)

IECEx Certified (Ex nA IIC T4 Gc)

CE, RoHS Compliant

Intrinsically Safe Design: Limits voltage/current to non-incendive levels.

Galvanic Isolation: Prevents ground loops and transient surges.

2. Mechanical & Electrical Design

Mounting: Wall-mounted enclosure (IP20 protection).

Input/Output:

Supports USB or PS/2 keyboards/mice (auto-signal detection).

Operating Voltage: 24V DC (typical).

Current Rating: 16A or 32A (model-specific).

Housing Material: Flame-retardant PBT/PC with screw terminals.

3. Model Variations

Model Description

BPC-A-W16A 16A rated, standard USB/PS2 support.

BPC-A-W32A 32A rated, high-load applications.

BPC-A-WS Special version (e.g., -40°C to +80°C).

4. Environmental & EMC Ratings

Operating Temperature: -20°C to +60°C (standard), extended ranges available.

Humidity: 5%–95% (non-condensing).

EMC Immunity: EN 61000-6-2 (industrial noise resistance).

Typical Applications

✔ Control rooms in oil & gas facilities.

✔ Chemical plant HMIs with explosion-proof requirements.

✔ Pharmaceutical & mining automation systems.