Accessories
AC/DC Distribution | Pole or Wall Mounting Shelf | Inside Mounting Trays
Batteries | Racking Spec Layout | More Specs

AC/DC Distribution

Pole or Wall Mounting Shelf


Shown mounted with OD-30DX
Shipping Information
Standard – Shipped via ground freight
PMS-3030
- for OD, ST, or SOD Series Enclosures
- This shelf can be used in most Indoor or Outdoor Applications
- 14″H X 30″W X 30″D
- Max Weight = 1750 lbs


Inside Mounting Trays
MT Series Shelves below are 19″ EIA Racking
Supported with Front and Rear Support Rails
MT-D
- 12″ Deep Mounting Tray
MT-DX
- 20″ Deep Mounting Tray
MT-DD
- 29″ Deep Mounting Tray
MT-DDX
- 37″ Deep Mounting Tray
SMT Series Shelves below are 19″ EIA Racking
Supported with Single Set Support Rails
SMT-17
- 17″ Deep Adjustable
- Single Rail Mounting Tray



BT-2117 – Center Rack Battery Tray
Supported with Single Set Support Rails
- 21″D x 17″W Inner
- 19″ Center Mount Racks
- 12 Gauge Steel
- 3 Racks Units High (6 5/8″H)
- Weight: 12 LBS



Telecom Batteries
| MARATHON | ![]() |
VBB-M12V90FT**NEW*** |
12 VDC = 90 AH 10.63″H X 4.13″W X 15.55″D / 70 Lbs. |
VBB-M12V105FT**NEW STOCKING* |
12 VDC = 105 AH 9.38″H X 4.33″W X 20.12″D / 79 Lbs. |
VBB-M12V125FT**NEW*** |
12 VDC = 125 AH 11.15″H X 4.90″W X 22″D / 105 Lbs. |
VBB-M12V155FT*NEW STOCKING* |
12 VDC = 155 AH 11.15″H X 4.90″W X 22″D / 119 Lbs. |
VBB-M12V180FT**NEW*** |
12 VDC = 180 AH 12.50” H X 4.90”W X 22″D / 133 Lbs. |
| BATTERY CORP | ![]() |
VBB-BC-12V75FT |
12 VDC = 75AH = 8.94″H x 4.14″W x 21.95″D = 63lb |
VBB-BC-12V100FT |
12 VDC = 100AH = 11.30″H x 4.13″W x 15.35″D = 76lb |
VBB-BC-12V155FT |
12 VDC = 155AH = 11.14″H x 4.92″W x 21.95″D = 119lb |
VBB-BC-12V170FT |
12 VDC = 155AH = 12.20″H x 4.92″W x 21.97″D = 1lb |
| Model # | Description |
| VBB-TEL-12-70 | 70AH = 8.01″H x 10.17W x 6.65″D =56lb![]() |
BT-2117 – **New** – 17″W X 21″D – SINGLE RACK BATTERY TRAY

Racking Spec Layout
STANDARD EIA 19″ Racking
EIA-310 is a specification for what is often called the “standard rack”. This specification standardizes several important features of 19″ racks, such as the Rack Unit (RU or U), vertical hole spacing, horizontal hole spacing, rack opening, and front panel width. The specification also set tolerances on each of these dimensions.
The EIA-310 specification has been the 19″ racks standard for equipment for 50 years. The items that the specification does not cover are the real reason for the industry wide incompatibility we now face. Rack features such as hole type, rack mounting depth, front and rear space, and obstructions between front and rear rails are the cause of real rack headaches.
Vertical Hole Spacing
Vertical hole spacing is defined as a repeating pattern of holes within one Rack Unit of 1.75″. The hole spacing alternated at: 1/2″ – 5/8″ – 5/8″ and repeats. The start and stop of the “U” space is in the middle of the 1/2″ spaced holes. See the diagram below.

Horizontal Spacing
The horizontal spacing of the vertical rows of holes is specified by EIA-310 at 18 5/16″ (18.312)(465.1 mm). This dimension is not well maintained on some racks, causing problems with equipment installation. Many manufacturers use equipment mounting slots instead of holes to allow for variations in this dimension.

Rack Opening
The opening in the rack is specified as a minimum of 17.72″ (450mm). 2Post or relay racks tend to have a larger than normal opening, as do many other racks with threaded holes. Square hole racks tend to be very close to the minimum opening.

Front Panel Width.The only dimension on a 19″ rack that actually measures 19″ is the width of the front panel of equipment.



More Options
Enclosure Exterior Mounting Accessories
Click Part # links to view more pictures, features, and specifications

| PMS-3030 | POLE OR WALL MOUNTING SHELF 14″H X 30″W X 30″D |
| CF-4 | |
| CA-4 | |
| DIM PAD | EDM (Enclosure Vibration Dampening Pad Mount)Distributed Isolation Material (DIM) pads Quantity 4 To A Set |
Lifting Hooks, Feet, Casters, Etc. – In Stock
| Part # | Description |
| I Hooks | |
| VIB-25 | Shock Mounted Vibra-Bobbins for 19″ or 23″ Racking Rails |
| GRDBR-10 | |
| COL-4 | 4″ COLLAR TO JOIN 2 ENCLOSURESTOGETHER FOR CABLE PASS THRU |
| .5 MICRONS | Two 5 Micron Nylon Replacement Filters 7 1/4″W X 10″H |
Other Accessories

| Part # | Description |
| SMT-17FT6 | 660 CFM 110V (6) FAN KIT TRAY FOR 19″ RACK w/ THERMOSTAT, SINGLE RAIL MOUNTING |
| SMT-17FT9 | 990 CFM 110V (9)FAN KIT TRAY FOR 19″ RACK w/ THERMOSTAT, DUAL RAIL MOUNTING |
Climate Control • Power Distribution • Enclosure Construction
DDB Unlimited is an OEM NEMA Outdoor Cabinet Enclosure Manufacturer. We provide adjustable 19" or 23" racking, front and rear doors with 3 point locking system, NEMA 4, 4X, air conditioners, heaters, fans and batteries. Power options are available for our telecommunication enclosures.
Configuration • Customization • Accessories • Customer Service











EDM (Enclosure Vibration Dampening Pad Mount)
Shock Mounted Vibra-Bobbins for 19″ or 23″ Racking Rails
4″ COLLAR TO JOIN 2 ENCLOSURES
Two 5 Micron Nylon Replacement Filters 7 1/4″W X 10″H