| Approximate External Dimensions Hover me Nominal external dimensions (LxWxH). Features (flanges, feet, bosses, etc.) may increase the overall dimensions. Refer to drawings/models for exact dimensional details. | 6.3 x 3.2 x 2.1 in 162 x 82 x 54 mm |
| Approximate Internal Dimensions Hover me Dimensions listed are approximate. Please refer to the drawings/models below to ensure a fit for your application. | 6.0 x 2.8 x 1.8 in 153 x 73 x 47 mm |
| Wall Thickness Hover me Nominal wall thickness. Wall thickness may vary throughout the enclosure. Refer to drawings/models for exact details. | |
| DIN Rail Length (mm) | |
| Weight | |
| Screw Size | |
| Fan Size | |
| Fits Hole Size | |
| Mounting Thread | |
| Cable Diameter (in) | |
| Clearance Hole Diameter (in) | |
| Max Wall Thickness Hover me Max wall thickness based on full thread engagement into the nut supplied. | |
| Metric Knockouts | |
| 2d Drawing PDF | Download 2D Drawing PDF |
| Download Material Specs | Download Material Specs |
| Product Material | |
| Base | |
| Cover | |
| Panel | |
| End Panel | |
| End Cap | |
| Latch | |
| Gasket | |
| Mounting Flange | |
| Mounting Feet | |
| Body | |
| Nut | |
| Din Clip | |
| DIN Rail | |
| Washer | |
| Temp. Range Impact / Vibration | |
| Temp. Range Static | |
| Mounting Channel | |
| Hose Clamp | |
| Button Keypad | |
| Battery Door | |
| Assembly Screws |
| Indoor/Outdoor Use | |
| UV Resistant | |
| Waterproof | |
| EMI/RFI Attenuation |
| Number of Units in Stock Hover me Stock available to ship within 1-2 business days | |
| Ready To Ship in 2-3 Days |
| Ready To Ship in One Week | |
| Ready To Ship in 4 Weeks | |
| Out-Of-Stock Lead Time Hover me We strive to keep adequate stock on hand for all parts. If we do happen to be out of stock, this is the anticipated lead time if the part is not in stock in our Avon warehouse. | |
| Returnable |
Inventory is subject to change. In-stock orders placed before 3PM ET (Monday-Friday) typically ship the same day. We will contact you if your order is delayed.
To see comparable American-made alternatives and avoid potential long lead times, click the compare icon or contact us for assistance.
| 3D Model | SG-21 STEP |
| 2D Drawing DWG | SG-21 DWG |
| 2D Drawing PDF | SG-21 PDF |
| Other Files | SG-21 Printing Template |
| SG Series Material Specs | Polycarbonate Specs |
| Screw Torque Guide | Screw Torque |
| USMCA Certificate of Origin | USMCA SG/SK Series |
| SG Series UL Certificate | UL Certificate of Compliance (Small Sizes) |
| Internal Mounting Panel | SG-21P |
| Surface Mounting Kit | SG-99 |
| DIN Rail Kit (Installed Along Width) | DR-06 |
| DIN Rail Kit (Installed Along Length) | DR-37 |
| Cable Management & Venting Accessories | Cable Glands & Vents |
| Quick Turn Cover Screws | SCREWS-020-6 |
| PCB Mounting Boss Screws | SCREWS-022-100 |
| Hardware Kit | SG-KIT-01 |
| Color | Clear Cover | ||
|---|---|---|---|
| Part # | Gray | No | Yes |
| SG-21-02 | |||
| SG-21-03 | |||
New 
New 
| Customer Rating |
| External Dimensions Hover me Nominal external dimensions (LxWxH). Features (flanges, feet, bosses, etc.) may increase the overall dimensions. Refer to drawings/models for exact dimensional details. |
| Internal Dimensions Hover me Dimensions listed are approximate. Please refer to the drawings/models below to ensure a fit for your application. |
| Country of Origin |
| Out-Of-Stock Lead Time Hover me We strive to keep adequate stock on hand for all parts. If we do happen to be out of stock, this is the anticipated lead time if the part is not in stock in our Avon warehouse. |
| NEMA Ratings Hover me NEMA Ratings are based on independent lab testing by UL and/or information available from the manufacturer. |
| IP Equivalent Hover me Polycase IP Code equivalents are based on the NEMA 250 to IEC 60529 conversion table published by NEMA.org or information available from the manufacturer. |
| Color |
| Material |
| Application |
| Mounting Style |
| Internal Mounting Option |
| Features |
6.3 x 3.2 x 2.1 in |
6.0 x 2.8 x 1.8 in |
Germany |
Up to 14 weeks |
Gray |
Polycarbonate |
Outdoor use |
|
|
|
6.1 x 4.6 x 2.4 in |
5.6 x 4.2 x 2.1 in |
 United States |
1 to 3 weeks |
Gray |
Polycarbonate |
Outdoor use |
|
|
|
6.2 x 5.2 x 4.2 in |
5.6 x 4.6 x 4.0 in |
| United States |
1 week |
Black or Gray |
Polycarbonate |
Outdoor use |
|
|
|
6.3 x 4.8 x 3.5 in |
6.0 x 4.4 x 3.2 in |
Germany |
Up to 14 weeks |
Gray |
Polycarbonate |
Outdoor use |
|
|
|
Made with polycarbonate plastic in Germany, the Spelsberg SG series is ideal for junction-style applications. CNC machining and graphics services available on this series.
Waterproof enclosures are available in a variety of styles, sizes, and materials such as ABS, aluminum, polycarbonate and steel.
Polycase junction boxes are designed for a variety of outdoor applications and are crafted in steel, aluminum, ABS, or polycarbonate.
Clear cover enclosures offer easy visual access to internal components - discover the range of sizes and styles to choose from.
Polycase offers polycarbonate enclosures with a wide variety of features, sizes and performance ratings, including NEMA 4X and IP68.
NEMA 4X enclosures protect against a variety of harsh indoor or outdoor environmental conditions.
Available in a wide range of sizes and styles to choose from, metal enclosures are offered in aluminum, stainless steel or carbon steel.
Reliable, easy and cost-effective.
