Bosch D203 Steel Security/Fire Module Enclosure, IP54 Dust/Splash Protection

Bosch D203 Steel Security/Fire Module Enclosure, IP54 Dust/Splash Protection Bosch D203 Steel Security/Fire Module Enclosure, IP54 Dust/Splash Protection Bosch D203 Steel Security/Fire Module Enclosure, IP54 Dust/Splash Protection, 7.75″×5.2″×2.5″ (19.7×13.2×6.4 cm), Gray Finish, Cold-Rolled Steel, ~1.75 lb, For Through-Hole & Three-Point PCB Mounting (UPC 782695022016)

Condition: New without box. Unused; no mounting marks or scratches. Very faint cosmetic mark at the top-left of the cover only.

The Bosch D203 is a compact, gray steel enclosure designed to house Bosch input, output, and receiver interface modules that use through-hole or three-point PCB mounting. Sized for medium-capacity field modules, it provides solid physical protection, clean cable routing, and an IP54 rating against dust and splashing water—ideal for equipment rooms, utility closets, and light industrial spaces. Cold-rolled steel construction resists deformation, while the neutral gray finish blends with control panels and structured-cabling racks.

Features

• Compact steel housing: 7.75 in × 5.2 in × 2.5 in (19.7 × 13.2 × 6.4 cm), approx. 1.75 lb.

• IP54 rating: Helps protect electronics from dust ingress and water splashes.

• Robust, cold-rolled steel body with durable gray finish.

• Compatible mounting patterns: Supports through-hole and three-point module mounting schemes.

• Professional look: Clean, neutral cover suitable for visible installations.

• Service friendly: Removable cover for fast access to boards, wiring, and fuses.

Applications / Spheres of Use

• Intrusion & access control: Mount Bosch input/output expanders, receivers, relays.

• Fire alarm & supervision (per AHJ and listing of the installed boards).

• Building automation / low-voltage I/O interface points.

• Networking & telecom backboards: Protect PoE splitters, small power supplies, converters (within size limits).

• Industrial/HVAC controls: House small control/monitor modules near air handlers, RTUs, and D203

• Material: Cold-rolled steel

• Finish/Color: Gray

• External size: 7.75″ × 5.2″ × 2.5″ (19.7 × 13.2 × 6.4 cm)

• Approx. weight: 1.75 lb

• Ingress protection: IP54

• UPC: 782695022016

• Mounting: Supports through-hole and three-point PCB mounting styles

Cross-Referenced Models (Bosch enclosure family – size/function alternatives)

• B10 Small enclosure (modern B-Series small footprint)

• D8103 Universal steel enclosure (larger footprint)

• D8108A Attack-resistant enclosure (hardened, larger)

• D8109 Fire enclosure (red, larger, fire applications)

• B11/B12 and similar Bosch small enclosures (size/lock variants)
  These are not exact equivalents in size; they are common Bosch alternatives when different capacity or listing is required.

Comparable Products

• Small gray steel low-voltage enclosures from other security brands with similar IP and footprint.

• NEMA/Type 1 or IP54 general-purpose junction boxes sized for PCB mounting.

In Larger Systems / How It’s Used

Mount the D203 to a wall or backboard, bring your low-voltage wiring through the knockouts or grommets, and fasten the module’s PCB using the through-hole or three-point pattern. Close the cover to protect the electronics from dust and incidental splashes while keeping service access quick and tidy. Typical installs include alarm panels, I/O expanders, receiver modules, relays, or small power/communication interfaces.

Trademarks

Bosch is a trademark or registered trademark of Robert Bosch GmbH and/or its affiliates. All other product names are the property of their respective owners and are used strictly for identification purposes.

Related

bosch d203 enclosure; gray steel module box; ip54 security enclosure; small control panel housing; 7.75×5.2×2.5 metal box; cold rolled steel junction box; device to protect low-voltage modules; bosch mounting enclosure medium capacity; through-hole pcb enclosure; structured cabling equipment box

Common Requests:

1. “Will the D203 fit my specific Bosch input/output/receiver module dimensions?”

2. “Is IP54 adequate for my mechanical room or should I step up to a higher NEMA rating?”

3. “Do you have the larger D8103/D8108A/D8109 enclosures in stock?”

4. “What mounting hardware and grommets are recommended for cable entry?”

5. “Can you provide multiple units for uniform cabinet layouts?”

NL25 E2

Condition of the item:

Take a look at pictures. They mostly supersede textual claims. Sometimes a mistake can be made in description, so if you see that the item might have been used, do not hesitate: ask.

If the item pictures show that the element or a component is missing or is not in the pictures, it will not be shipped. If you see something is missing, ask to make sure.

If the items are sold in series (Single listing, but number of items can be selected for purchase) then you might not necessarily receive the particular item is in the pictures, but same (different serial or color where not crucial for operation)

Shipping

Shipping cost:
Calculated by

Handling time:
Normally we ship out same or next business day, but it might take up to three days as per policy.

Payment

We accept the following payment methods:

• provided payment methods: Paypal, Visa, MC, Discover, Amex

Please contact us if you have any questions.

Returns and refunds

New products have to be returned in the same original packaging, unopened, unused, not installed or the return will be denied.

Majority of our used products go thru testing before shipping. We do accept returns within 14 days after the item was delivered.

Buyer pays for shipping back. We do not refund shipping charges to and from buyer.