National Highways Type 640 Cabinet
The Cabinet Type 640 shall be installed on the Motorway and Trunk Roads Network and shall be used to house National Highways motorway communication and other third-party equipment.
The Type 640 Cabinet comes in two PDU variants, Rural Cabinet and Gantry Cabinet, which can be further customised with Adaption Kits. See the Options tab for a full detail of all options available.
Features
- IP56 Rating – The NH640 is protected against dust ingress and powerful water jets according to BS EN 60529:1992 + A2:2013.
- Two compartments – One containing the equipment bay, rack, and wiring, the other containing the Power Distribution Unit and electrical terminations.
- 2 x 19” Racks 31U – One behind the other for the double-mounting of equipment up to 50kg.
- Lifting Lugs – All units are supplied with detachable lifting lugs with a maximum load of 876kg.
- Lacing Rail Mountings – For the attachment/mounting of lacing frames
- Horizontal Termination Rails x6 – 4 in the Equipment Bay and two in the PDU Bay for the termination and earthing of SWA cables.
- TSP Socket Strip x1 – BS 1363 6-way 13 A socket strips
- Rack Power Cables x8 – 3-core 0.75 mm2 flexible cords fitted with ICE 60320 C13 cable sockets located in the Equipment Bay.
- Secure Locking System – Three-point locking system on each door operated using an NH-Supplied T-key.
- Three Doors – Two 90-degree doors with door stays allowing access to the equipment bay, and one 180-degree door allowing access to the PDU compartment.
- Ventilation – Cabinet is ventilated using a vent system above the doors.
- Optional Pedestals – Placed between cabinet and plinth/chamber to prevent moisture ingress.
- Cable Entry – Opening at the base for cable entry. To be sealed with resin-based product.
- Cabinet Heater – Stego touch safe heater located in the equipment bay.
- MET – Main Earth Terminal located in the PDU bay.
- PDU Cable entry – 3x 32.0mm, 9x 25.0mm, 18x 20.0mm diameter holes fitted with blanks located in the bottom of the PDU.
- Surge Protection – Type 1, 2 & 3 surge protection fitted.
- Hinged viewing covers on circuits within the PDU.
- Ritherdon Guarantee – All metalwork is guaranteed for 25 years.
Product Acceptance Certificate
Cabinet Type 640 Cabinet (NH640 Cabinet)
Certificate No. PAC/011/1/2021/03/23
Compliance with TR2637 and the following National Highways specifications:
- TR1100 General Requirements for Motorway Products
- TR2130 Environmental Test Methods
- TR2180 Paint and Finishes
The NH640 Cabinet is certified for operation in the following:
- Strategic Roads Networks
- Motorway Trunk Roads Network
- Non-Motorway Roads Network
PDU option available:
- Rural PDU – NH Type 640 Rural Power Cabinet: CABINET-0850-1-000
- Gantry PDU – NH Type 640 Gantry Power Cabinet: CABINET-0851-1-000
Adaption Kits available for each PDU option.
See all details in the Options tab.
The Cabinet Type 640 is a combination of both the Cabinet Type 600 and Cabinet Type 609 into one single class of cabinet. The Cabinet Type 640 (Combined Equipment Cabinet) is designed according to National Highways specification TR2637 and in compliance with TR1100, TR2130 and TR2180. To find out more about the TR official documents, visit the Traffic Systems and Signing (TSS) Plans Registry. For further information on all Designs, standards and specifications please refer to National Highways.
Product Dimensions
| Enclosure | Height (mm) | Width (mm) | Depth (mm) | Working Depth (mm) | Rack Space | Main Cable Opening Area | PDU Cable Opening Area | Weight (kg) |
| NH640 | 1589 | 900 | 620 | 300 | 31U | 540×500 | 496×138 | 230 |
Click here to see a table with the dimensions of all our cabinet and feeder pillar products.
PDU options available:
Rural – NH Type 640 Rural Power Cabinet: CABINET-0850-1-000
Gantry – NH Type 640 Gantry Power Cabinet: CABINET-0851-1-000
Product Documentation
NH640 Cabinets have different installation methods. It is often recommended to use a Cabinet Standoff Base.
Adaption Kits – Instructions
The Cabinet Type 640 (Combined Equipment Cabinet) is designed according to National Highways specification TR2637 and in compliance with TR1100, TR2130 and TR2180. To find out more about the TR official documents, visit the Traffic Systems and Signing (TSS) Plans Registry. For further information on all Designs, standards and specifications please refer to National Highways.
NH Type 640 Rural Power Cabinet: CABINET-0850-1-000
The Rural site cabinet incorporates internal power distribution for Highways and TSP rack mounted electronic equipment.
The Rural cabinet is sometimes required to distribute main power to post mounted signals. Power distribution to post / mast mounted CCTV cameras, ANPR cameras, and radar detectors etc., is almost exclusively at ELV (Extra Low-Voltage), thus facilitates the internal mains power distribution to rack mounted power supply units.
NH Type 640 Gantry Power Cabinet: CABINET-0851-1-000
The Gantry site cabinet incorporates internal power distribution for Highways and TSP rack mounted electronic equipment as per the Rural cabinet. The Gantry site cabinet distributes mains power to final circuits located on the gantry structure, that may include message signs, lane signals, speed enforcement equipment and sign lighting.
All mains power distributed to the gantry has power isolation by the Gantry Main Switch. For a single-span gantry (either of cantilever or portal design) the gantry power isolation is simple because only one switch is required to isolate the gantry power.
Adaption Kit Part Numbers
The tables below contain the National Highways part codes for the available NH Approved Adaption Kits. The below Adaption Kits can be supplied separately with the NH640, however we do not supply them pre-installed.
Rural Cabinet – CABINET-0850-1-000
| National Highways Part Number | Adaption Kit Part Description | Drawing No. |
| CABINET-0854-4-000 | Post Mounted AMI | [MCX 8001 Sheet 2] |
| CABINET-0855-4-000 | Matrix Indicator | [MCX 8001 Sheet 2] |
Gantry Cabinet – CABINET-0851-1-000
| National Highways Part Number | Adaption Kit Part Description | Drawing No. |
| CABINET-0853-4-000 | Dual Span Remote | [MCX 8001] |
| CABINET-0854-4-000 | Post Mounted AMI | [MCX 8001 Sheet 2] |
| CABINET-0855-4-000 | Matrix Indicator | [MCX 8001 Sheet 2] |
| CABINET-0856-4-000 | AMI 1 to 4 | [MCX 8001 Sheet 3] |
| CABINET-0857-4-000 | AMI 5 to 8 | [MCX 8001 Sheet 3] |
| CABINET-0858-4-000 | 2nd VMS [MS3 / MS4] | [MCX 8001 Sheet 3] |
| CABINET-0859-4-000 | Speed Enforcement | [MCX 8001 Sheet 3] |
| CABINET-0958-4-000 | ADS-Lighting | [MCX 8001 Sheet 3] |
| CABINET-0976-4-000 | Pilot Circuit Equipment for Gantry Power Isolation | [MCX 8001 Sheets 6, 7 & 9] |
| CABINET-0977-4-000 | Pilot Circuit Remote Gantry Main Switch for Gantry Power Isolation | [MCX 8001 Sheet 8] |
Compatibility with Extended Plinth 610
To ensure compatibility with existing road infrastructure, the NH640 Cabinet can be installed on a National Highways Extended Plinth Type 610 (not supplied by Ritherdon), as well as installed on a Cabinet Standoff Base or Pedestal (supplied by Ritherdon). For more detailed information, see the cabinet drawing and instructions (in the Data tab).
