Bray 5C Series Explosion-Proof Valve Position Monitoring Switch Box

Designed for valve position feedback in hazardous locations, with support for multiple industrial communication protocols.

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The Bray 5C Series is an explosion-proof valve position monitoring switch box for valves equipped with actuators compliant with VDI/VDE 3845 (NAMUR). Available with mechanical or proximity switches, it can be configured with up to 6 switches and optional AS-I, Profibus DP, or DeviceNet communication. It is suitable for valve position feedback, interlocking, and control network status monitoring in hazardous chemical, refining, and petrochemical environments.

Specifications

Certifications

CE, cULus, ATEX, IECEx, SIL 3 capability

Communication Protocols

AS-I, Profibus DP, DeviceNet

Protection Rating

IP66/67/68, NEMA 4/4X, UL50E salt spray

Operating Temperature Range

-13°F to 149°F (-25°C to 65°C)

Switch Type

Mechanical: SPDT, DPDT; Proximity: PNP, NPN

Maximum Number of Switches

Mounting Standard

VDI/VDE 3845 compatible (NAMUR)

Conduit Entries

2×¾" NPT, 1×½" NPT, or 2×M25, 1×M20

Position Indicator

High-visibility dome indicator; red/yellow, red/green, black/yellow, or reversed red/green

Housing Material

Aluminum base and cover

Application scenarios

Valve Position Status Monitoring in Hazardous Chemical and Petrochemical Facilities

Used in hazardous areas of chemical, refining, or petrochemical facilities to provide electrical open/close position feedback and local status confirmation for valves mounted on actuators compliant with VDI/VDE 3845 (NAMUR).

Valve Position Status Integration in Industrial Control Networks

Used in automated valve systems to integrate valve position status into field control or monitoring systems through AS-I, Profibus DP, or DeviceNet communication options.

Multi-Circuit Valve Position Feedback and Interlock Monitoring

Used in automated valve assemblies that require valve position feedback for interlock, alarm, control, or remote monitoring circuits; this series can be configured with up to 6 switches and is SIL 3 capable.

Selection points

Multiple International Certifications and SIL 3 Capability

CE, cULus, ATEX, and IECEx certified, with SIL 3 capability, providing certified selection criteria for hazardous-area and functional-safety-related projects.

Multi-Signal Configuration with up to 6 Switches

Supports up to 6 switches, with optional mechanical SPDT and DPDT switches or proximity PNP and NPN switch types.

High Protection Rating and Salt Spray-Resistant Enclosure

Features IP66/67/68, NEMA 4/4X, and UL50E salt spray protection ratings, with an aluminum base and cover.

Multiple Conduit Port Configurations

Available with 2 x 3/4 in NPT plus 1 x 1/2 in NPT, or 2 x M25 plus 1 x M20 conduit port configurations.

FAQ

How does the Series 5C switch box work?

The Series 5C explosion-proof switch box reliably monitors valve position in hazardous locations. Its high-visibility dome indicator provides clear open/closed valve feedback. The indication direction can be reversed by rotating the dome without opening the cover, allowing field personnel to identify valve status at a glance.

Which communication protocols does this switch box support for integration?

It supports communication protocols including AS-I, Profibus DP, and DeviceNet, facilitating integration and signal transmission with existing control systems.

What protection ratings are available for this product?

It features IP66/67/68 protection ratings, NEMA 4/4X, and UL50E salt spray certification, making it suitable for outdoor or harsh-environment applications.

What configuration and installation requirements should be considered when installing this switch box?

The enclosure is VDI/VDE 3845 compatible (NAMUR), offers up to 6 switch options, and provides multiple threaded conduit-entry options for connection to field systems. Specific configurations should be confirmed based on the actual model and application conditions.

What visual indication options are available for this series?

It is equipped with a high-visibility indicator. Beacon color options include standard red/yellow, as well as red/green, black/yellow, and reversed red/green, enabling quick valve status identification.