The Bray Series 5A aluminum valve status monitor (switch box) is designed to monitor the open/closed position of quarter-turn valve actuators. It is equipped with two mechanical or proximity switches and a highly visible visual indicator. Compatible with the VDI/VDE 3845 (NAMUR) mounting standard, it provides IP66/67 and NEMA 4/4X protection for valve position feedback in confined spaces, outdoor process areas, and control or interlock circuits.
Series 5A Aluminum Switch Box Product Image
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Bray Series 5A Aluminum Valve Status Monitor (Switch Box)
Aluminum valve status monitor for confined-space installation, supporting mechanical switches
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Model confirmation
Confirm model, connection and key options before ordering.
After-sales support
After-sales communication support is provided according to the order agreement.
Specifications
- Number of Switches
- 2
- Switch Type
- Mechanical: SPDT, SPDT (low power); Proximity: PNP, NPN, 140V 2-Wire, 250V 2-Wire, reed, NAMUR intrinsically safe
- Operating Temperature Range
- -13°F to 149°F (-25°C to 65°C)
- Protection Rating
- IP66/67, NEMA 4/4X, UL50E salt spray
- Mounting Standard
- VDI/VDE 3845 compatible (NAMUR)
- Conduit Entries
- 2x ½" NPT or 2x M20
- Certifications
- CE, cULus (most models), SIL 3 capable; optional ATEX, IECEx
- Communication Protocol
- None
- Visual Position Indication
- High-visibility indicator; beacon color options: red/yellow, red/green, black/yellow, reverse red/green
- Enclosure Material
- Die-cast aluminum, polyester powder coating
Application scenarios
Position Monitoring of Quarter-Turn Valves in Confined Spaces
Mounted on quarter-turn actuators compliant with VDI/VDE3845 to provide visual and electrical valve position indication; the Series 5A features a lightweight, compact enclosure suited for installation in restricted spaces near valve manifolds and auxiliary equipment.
Valve Position Feedback in General Control or Interlock Circuits
Mounted on on-off valves driven by VDI/VDE3845-compatible quarter-turn actuators, it reports valve open/closed status through two mechanical or proximity switch outputs and provides local visual position indication for general control or interlock circuits.
Local Position Indication and Electrical Feedback for Valves in Outdoor Process Areas
Mounted on quarter-turn valve actuators, it provides local valve position identification through a high-visibility indicator and meets outdoor or exposed process-area requirements with IP66/67 and NEMA 4/4X protection ratings.
Selection points
Compact Die-Cast Aluminum Enclosure
Series 5A features a die-cast aluminum enclosure with a polyester powder coating, providing a lightweight, compact design for installations with limited space.
Two-Switch, Multiple Feedback Configuration Options
The product is configured with 2 switches and offers SPDT and low-power SPDT mechanical switches, as well as PNP, NPN, 140V 2-Wire, 250V 2-Wire, reed, and NAMUR intrinsically safe proximity switches to meet control system feedback signal requirements.
NAMUR-Compatible Mounting and Dual Conduit Ports
The product is compatible with the VDI/VDE 3845 NAMUR mounting standard and offers a choice of 2 x 1/2 in. NPT or 2 x M20 conduit ports.
Installation & maintenance notes
Seal Unused Conduit Entries
After field wiring is completed, any unused entry among the two 1/2 in. NPT or M20 conduit entries must be securely sealed with a matching sealing plug to maintain the enclosure's IP66/67 protection rating and prevent moisture and contaminants from entering.
FAQ
How does the Series 5A switch box work?
The Series 5A valve status monitor provides visual and electrical position indication on VDI/VDE3845-compliant quarter-turn actuators. A high-visibility indicator displays the valve open/closed status, while mechanical or proximity switches provide electrical signal output to help monitor production processes.
What are the application differences between the Series 5A, 5B, and 5C?
The 5A is suited to confined spaces with a lightweight enclosure. The 5B provides a larger enclosure, up to 20 terminals, and six switches for greater customization capability. The 5C features an explosion-proof design for highly reliable monitoring in harsh environments.
What certifications and protection ratings does this switch box have?
Certifications include CE, cULus for most models, and SIL 3 capability, with optional ATEX and IECEx. Protection ratings are IP66/67, NEMA 4/4X, and UL50E salt spray compliance.
How should I select a model to ensure compatibility with a valve actuator?
Confirm use with a VDI/VDE3845-compliant quarter-turn actuator, the required switch configuration (mechanical SPDT or proximity PNP/NPN, etc.), and terminal entry requirements (2x ½" NPT or 2x M20). The specific model and configuration should be confirmed based on actual application conditions.
What are the key considerations for installation and maintenance?
The system should be NAMUR-compatible. Consider conduit entries, dome indicator adjustability, secondary shaft sealing, captive screws and O-ring integrity, as well as clear terminal identification and reliable grounding.
Documents
Product Brochure - Valve Automation Center (VAC)Product information · EnglishTechnical Manual - Series 5A Switch BoxManual · EnglishProduct Brochure - Series 5A, 5B and 5C Switch BoxesProduct information · EnglishProduct Brochure - Valve Status Monitor Series 5A/5B/5CProduct information · EnglishIOM Manual - Series 5A/5B Intrinsically Safe Switch BoxesManual · EnglishIOM Manual - Valve Status Monitor Series 5A/5BManual · EnglishIOM Manual - Series 5A/5B Switch BoxesManual · EnglishSafety Manual - Series 5A, 5B and 5C Switch BoxesManual · EnglishReference Guide - Hazardous Area ProductsProduct information · EnglishReference Guide - Intrinsic Safety Reference GuideProduct information · EnglishTechnical Sales Manual - Series 5A Aluminum Switch BoxManual · English