The Yokogawa STB4D-10, also cataloged as the STB4D Pressure Clamp Terminal Block, operates as a dedicated hardware component for physical signal termination and channel distribution within CENTUM VP and ProSafe-RS control networks. Configured for high-density signal distribution, the hardware provides direct physical/electrical execution of field wiring connections to upstream input/output modules. The component routes discrete loop circuitry through a dual-redundant architecture, accommodating up to 16 channels or 8 channels in redundant configurations, ensuring continuous operational continuity at the physical layer without signal line interruption.
| Parameter | Specification |
|---|---|
| Model | STB4D-10 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.4 kg |
| Dimensions | 65.6 mm x 72 mm x 114 mm |
| Operating Temp | -20 to +70 deg C |
| Power Consumption | Not Specified |
| Product Type | Pressure Clamp Terminal Blocks |
| Channel Capacity | 16 or 8 channels (dual-redundant) |
| Connection Type | Pressure-clamp terminal block |
| Rated Voltage | 24 VDC |
| Rated Current | 10 A |
| Surge Protection | Optional EMC surge absorber |
| Compliance | EN 61000-6-2 EMC standards |
| Mounting | DIN rail or wall mount |
The terminal board integrates hardwired termination paths engineered to interface with 4-20 mA HART loop protocol physical circuits. Dedicated internal trace layouts provide localized channel-to-channel isolation, minimizing transient electrical cross-talk and protecting adjacent signaling pairs from common-mode voltage faults. For specialized temperature transmitters, the assembly incorporates passive cold junction compensation (CJC) reference junctions directly on the physical termination block, ensuring thermal measurement tracking accuracy during environment-induced temperature excursions.
Q: How is dual-redundant signal routing electrically maintained on this terminal board?
A: The physical board architecture routes each field signal channel through parallel trace matrices connected to separate multi-pin system cable headers. This layout allows two independent I/O modules to interface with the exact same field loops concurrently without loading down the signal paths.
Q: Under what conditions should the optional EMC surge absorber version be deployed?
A: The surge absorber variant must be specified when field wiring runs through outdoor areas or high-exposure industrial zones subject to lightning strikes, power switching transients, or severe electromagnetic interference that exceeds standard EN 61000-6-2 testing levels.
Q: Can the pressure clamp terminals accept solid and stranded field wires without modifications?
A: Yes. The pressure clamp mechanical assembly exerts direct, continuous spring pressure onto the bare conductor wire. Ensure the wire strip length matches factory installation tolerances to secure a low-resistance gas-tight physical connection.
Nuestra línea de producción se paró debido a un monitor Bently Nevada defectuoso. Lo encontramos en stock aquí y lo enviaron por DHL de inmediato. Volvió a funcionar en 48 horas, lo que realmente salvó nuestra planta.
Encontrar módulos nuevos y originales es fundamental para nuestra seguridad. Este equipo entrega componentes de fábrica con certificación completa. Su compromiso de vender únicamente productos nuevos los convierte en nuestro socio de mayor confianza.
Llevamos dos años abasteciendo aquí piezas de Honeywell y Schneider. Todos nuestros envíos llegan perfectamente embalados, con los precintos originales de fábrica intactos. Ofrecemos una comunicación clara y los mejores plazos de entrega del sector.