National Highways Type 640 Cabinet
The Cabinet Type 640 is installed on the Motorway and Trunk Roads Network and used to house National Highways motorway communication and other third-party equipment.
The Type 640 Cabinet comes in two PDU variants: Rural & Gantry Cabinet. Further customised with Adaption Kits as required. Option to use a Cabinet Base or Pedestal, either for Plinth or Grillage as well as for Chamber and Sump (includes Chamber). See the Options tab for a full details of all options mentioned.
Manufactured and designed by Ritherdon according to NH requirements (TR 2637 B). Made from stainless steel with a 25-year guarantee.
National Highways enclosures are supplied without keys as standard. Please contact your Scheme Designer for further information and supply details.
Features
- IP56 Rating – The NH640 Cabinet is protected against dust ingress and powerful water jets according to BS EN 60529:1992 + A2:2013.
- Two compartments – One for the equipment bay, rack, and wiring, the other containing the Power Distribution Unit (PDU) 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 National Highways supplied T-key. Keys not included.*
- 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.
- Made from 4003 Grade Stainless Steel, powder coated in RAL 00A09 ‘Flint Grey’.
- Ritherdon Guarantee – All metalwork is guaranteed for 25 years.
*National Highways enclosures are supplied without keys as standard. Please contact your Scheme Designer for further information and supply details.
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 Variants Rural & Gantry:
- Rural PDU – NH Type 640 Rural Power Cabinet: CABINET-0850-1-000
- Gantry PDU – NH Type 640 Gantry Power Cabinet: CABINET-0851-1-000
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 Kits available for each PDU option.
See all details in the Options tab.
National Highways Approved Design:
The Cabinet Type 640 is a combination of both: Cabinet Type 600 (Motorway Communications Cabinet) and Cabinet Type 609 (Electrical Interface Cabinet), into one single class of cabinet.
Also known as a Combined Equipment Cabinet it is intended to be deployed where space restrictions preclude the use of the two separate cabinets on the same site. The NH640 is supplied in two variants, Rural Cabinet (CABINET-0850-1-000) & Gantry Cabinet (CABINET-0851-1-000).
The NH640 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.
*National Highways enclosures are supplied without keys as standard. Please contact your Scheme Designer for further information and supply details.
