The Bray 5A Series resin valve position monitoring switch box provides electrical feedback of actuator valve open and closed positions. It is compatible with the VDI/VDE 3845 (NAMUR) mounting standard and is equipped with two optional mechanical or proximity switches. The glass-fiber-reinforced PBT enclosure provides IP66/67/68 and NEMA 4/4X protection, making it suitable for valve position monitoring in outdoor, wet, washdown, and hazardous-area applications with appropriately certified configurations.
Series 5A Resin Switch Box Product Image
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Bray Series 5A Resin Valve Position Monitoring Switch Box
Resin valve position monitoring switch box compatible with NAMUR actuators and available with multiple switch types.
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After-sales support
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Specifications
- Certifications and Safety Rating
- CE; SIL 3 capability; optional ATEX, IECEx
- Protection Rating
- IP66/67/68, NEMA 4/4X
- Operating Temperature Range
- -25°C to 65°C (-13°F to 149°F)
- Mounting Standard
- VDI/VDE 3845 compatible (NAMUR)
- Number of Switches
- 2
- Switch Types
- Mechanical: SPDT, SPDT (low power); Proximity: PNP, NPN, 140V 2-Wire, 250V 2-Wire, reed, NAMUR intrinsically safe
- Conduit Entries
- 2×½" NPT or 2×M20
- Enclosure Material
- Glass fiber-reinforced PBT
- Indicator Dome Material
- Polycarbonate
- Position Indicator
- High-visibility indicator; beacon color options: red/yellow (standard), red/green, black/yellow, reversed red/green
Application scenarios
Valve Position Feedback for NAMUR-Standard Actuators
Installed on actuators compatible with VDI/VDE 3845 (NAMUR), providing electrical feedback of valve open and closed positions through two switches, with local status indication via a high-visibility indicator.
Valve Position Monitoring in Outdoor, Wet, or Washdown Environments
Used for valve position monitoring in harsh environments. With IP66/67/68 and NEMA 4/4X protection ratings, a glass-fiber-reinforced PBT enclosure, and a polycarbonate indicator dome, it is suitable for sites exposed to moisture, washdown, dust, or corrosion.
Hazardous-Area Valve Position Monitoring with Applicable Certified Configurations
When equipped with optional ATEX or IECEx certification, or NAMUR intrinsically safe switches, it can provide valve position status feedback for valve actuators subject to applicable hazardous-area requirements.
Selection points
Corrosion and impact resistance of the glass-fiber-reinforced PBT resin enclosure
The switch box uses glass-fiber-reinforced PBT as its base material. Product documentation positions it for harsh environments, with corrosion and impact resistance.
IP66/67/68 and NEMA 4/4X protection ratings
The product provides IP66/67/68 and NEMA 4/4X protection ratings, making it suitable for industrial sites requiring a specified enclosure protection level.
Safety certifications and hazardous-area configuration options
The product provides CE and SIL 3 capability, with optional ATEX and IECEx certifications to meet project-specific safety and hazardous-area compliance requirements.
Two-switch configuration with multiple switch types
The product is equipped with 2 switches, with options including mechanical SPDT, low-power SPDT, PNP, NPN, 140V two-wire, 250V two-wire, reed, and NAMUR intrinsically safe proximity switches.
Highly visible position indication with multiple color options
The product features a highly visible position indicator, with beacon color combinations including red/yellow, red/green, black/yellow, and reversed red/green.
NAMUR mounting interface and dual conduit port options
The product is compatible with the VDI/VDE 3845(NAMUR) mounting standard and provides either 2 x 1/2-inch NPT or 2 x M20 conduit ports.
Installation & maintenance notes
Use a NAMUR-compatible mounting interface and maintain drive alignment
Install the switch box using an actuator mounting interface and suitable mounting hardware compatible with VDI/VDE 3845 NAMUR. Ensure that the switch box is correctly aligned and engaged with the actuator drive components.
Match the cable entry to the specified ports and maintain enclosure sealing
For field wiring, use fittings compatible with the 2 x 1/2-inch NPT or 2 x M20 conduit ports, and maintain entry sealing to preserve the product's rated IP66/67/68 and NEMA 4/4X protection.
Do not exceed the specified ambient temperature range during installation
Confirm that the ambient temperature at the switch box installation point is within the range of -25°C to 65°C.
FAQ
How does the Series 5A switch box work, and where is it used?
This switch box integrates two switches in a compact resin enclosure with a high-visibility indicator for status indication and control in harsh environments. Signal outputs are provided through mechanical or proximity switch options, and NAMUR/VDI/VDE 3845-compatible mounting supports applications requiring rapid local status confirmation and reliable contacts. Specific configurations must be confirmed according to the actual model and application conditions.
What are the key protection ratings and environmental suitability features of this product?
The product is rated IP66/67/68 and NEMA 4/4x for dustproof, waterproof, and harsh-environment applications. The enclosure uses a polycarbonate cover and resin base, providing corrosion, impact, wear, and UV resistance for outdoor or hot and humid environments.
What switch configurations are available for this switch box, and how should they be selected?
Options include mechanical SPDT and low-power SPDT versions, as well as proximity outputs such as PNP, NPN, 140V 2-Wire, 250V 2-Wire, reed, and NAMUR intrinsically safe. The two-switch design supports simultaneous use. The required output type and voltage rating should be selected based on the on-site control system requirements to ensure compatibility and safety. Specific configurations must be confirmed according to the actual model and application conditions.
What are the key requirements for installation and cable connections?
Conduit entries are available in 2x ½" NPT or 2x M20 for connection to different cable and conduit systems. The terminal board is angled toward the user for easier installation and wiring, while captive screws secure the cover to improve long-term reliability. Specific installation details are subject to the model information at the installation site.
What advantages does this product offer for maintenance and troubleshooting?
The splined cam design enables rapid, tool-free adjustment of switch actuation points. The high-visibility indicator clearly displays open/closed status for easier field diagnostics. An O-ring seal provides weather-resistant sealing and reduces the risk of internal corrosion. The actual maintenance plan must be confirmed based on on-site application conditions and the model.
Documents
Product Brochure - Valve Automation Center (VAC)Product information · EnglishProduct Brochure - 5A, 5B and 5C Switch BoxesProduct information · EnglishIOM Manual - 5A/5B Series Intrinsically Safe Switch BoxesManual · EnglishIOM Manual - 5A/5B Series Switch BoxesManual · EnglishSafety Manual - 5A, 5B and 5C Series Switch BoxesManual · EnglishReference Guide - Hazardous Area ProductsProduct information · EnglishReference Guide - Intrinsic Safety Reference GuideProduct information · EnglishTechnical Sales Manual - 5A Series Resin Switch BoxManual · EnglishTechnical Manual - Monitor de Estado para Válvulas de Resina Serie 5AManual · English