Hammond 18P2121S16 21-Inch Square 316 Stainless Enclosure Inner Panel
Ships from and sold by A5 IT
Exclusive pricing and Net-30 terms. Sign in or create a free account.
Create Free Business AccountKey Features
- 21 x 21 in (533 x 533 mm) inner panel for a 24 x 24 in (H x W) wallmount enclosure
- Brushed 316 stainless steel construction
- 4 x 0.50 in diameter mounting holes, spaced on a 19.25 in square pattern (per drawing)
- 0.10 in material thickness shown on the part drawing
- Panel mounting hardware not included - provided with the enclosure
- RoHS and REACH compliant
- Shipping weight 15 lbs (6.80 kg), packaged in a box
- Same footprint also offered in steel (18P2121), galvanized steel (18G2121), aluminum (18A2121) and fiberglass (F2424)
The 18P2121S16 is a 21 x 21 in (533 x 533 mm) 316 stainless steel inner panel from Hammond's 18P Series, sized for a wallmount enclosure measuring 24 x 24 in (H x W). It gives panel builders, electricians and OEM engineers a flat sub-panel for mounting equipment inside the enclosure. The 18P Series covers inner panels for 1418, 1447, PJW and PHW wallmount enclosures.
The series specification describes the stainless steel panels as 12 gauge brushed 316 SS. The same specification notes that some larger panels in the series are 10 gauge. The part drawing shows a material thickness of 0.10 in. This stainless steel 21 in square shares the 19.25 in square four-hole pattern of the white steel 18P2121, and its part drawing carries a revision date of Jun 3, 2025.
Per the series ordering table, the panel measures 21.00 in (533 mm) long by 21.00 in (533 mm) wide and is matched to an enclosure 24.00 in (610 mm) high by 24.00 in (610 mm) wide. The drawing specifies four 0.50 in diameter mounting holes, spaced on a 19.25 in square pattern.
Panel mounting hardware is not included with the 18P2121S16; the series specification notes that it is provided with the enclosure. The part is listed as RoHS and REACH compliant, and ships in a box with a shipping weight of 15 lbs (6.80 kg). The same size is also listed in steel (18P2121), galvanized steel (18G2121), aluminum (18A2121) and fiberglass (F2424).
Ideal For
- Mounting components inside a 24 x 24 in wallmount enclosure
- Sub-panel for 1418, 1447, PJW and PHW series wallmount enclosure builds
- Control panel and electrical equipment mounting
- Builds that call for a brushed 316 stainless steel inner panel
Mounting
| Panel Mounting Hardware | Not included (provided with enclosure) |
| Mounting Hole Pattern (Per Drawing) | 19.25 in x 19.25 in |
Overview
| Series | Inner Panels 18P Series |
| Part Number | 18P2121S16 |
| Product Type | Inner panel |
| Long Description | Panel 21 x 21 Fits Encl. 24 x 24 |
| Short Description | PANEL 21 X 21 - FITS ENCL. 24 |
| Series Application | 1418, 1447, PJW, and PHW Wallmount Enclosures |
Dimensions
| Nominal Size | 21 x 21 in |
| Panel Width (W) | 21.00 in (533 mm) |
| Panel Length (L) | 21.00 in (533 mm) |
| Material Thickness (Per Drawing) | 0.10 in |
Identifiers
| UPC | 623980149462 |
| UNSPSC | 39121302 |
Packaging & Shipping
| Packaging Type | Box |
| Shipping Weight | 15 lbs (6.80 kg) |
Construction & Finish
| Finish | Brushed |
| Material | Stainless steel (brushed 316 SS) |
| Stainless Grade | 316 |
| Gauge (Series Specification) | 12 gauge; the series notes some larger panels are 10 gauge |
Enclosure Compatibility
| Enclosure Type | Wallmount enclosure |
| For Use With Enclosure Width (W) | 24.00 in (610 mm) |
| For Use With Enclosure Height (H) | 24.00 in (610 mm) |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
Same-Size Panels In Other Materials
| Steel Part No. | 18P2121 |
| Aluminum Part No. | 18A2121 |
| Fiberglass Part No. | F2424 |
| Stainless Steel Part No. | 18P2121S16 |
| Galvanized Steel Part No. | 18G2121 |
Purchasing this for your business?
Business account holders get access to exclusive pricing, volume discounts, and dedicated support. Create a free account to get started.
Frequently Asked Questions
What size enclosure does the 18P2121S16 fit?▾
The 18P2121S16 is listed for use with an enclosure measuring 24.00 in (610 mm) high by 24.00 in (610 mm) wide. The 18P Series covers inner panels for 1418, 1447, PJW and PHW wallmount enclosures.
What are the dimensions of the 18P2121S16?▾
The panel is 21.00 in (533 mm) long by 21.00 in (533 mm) wide, and the part drawing shows a material thickness of 0.10 in.
Is mounting hardware included?▾
No. Panel mounting hardware is not included with the panel; the series specification states it is provided with the enclosure.
What material is the 18P2121S16 made from?▾
It is a stainless steel panel. The series specification lists stainless steel panels as 12 gauge brushed 316 SS.
How many mounting holes does the 18P2121S16 have?▾
The drawing shows four 0.50 in diameter mounting holes, spaced on a 19.25 in square pattern.
Is this panel size available in other materials?▾
Yes. The series ordering table lists the same 21 x 21 in size in steel (18P2121), galvanized steel (18G2121), aluminum (18A2121) and fiberglass (F2424).
Related Products
Save 44%18P2121 — Panel 21 x 21 - Fits Encl. 24 x 24 - Steel/Wht
Hammond Manufacturing · 18P2121
Save 44%18P2709 — Panel 27 x 9 - Fits Encl. 30 x 12 - Steel/Wht
Hammond Manufacturing · 18P2709
Save 44%18P2117S16 — Panel 21 X 17 - Fits Encl. 24
Hammond Manufacturing · 18P2117S16
Save 44%18P2713 — Panel 27 x 13 - Fits Encl. 30 x 16 - Steel/Wht
Hammond Manufacturing · 18P2713
Save 44%18P2117 — Panel 21 x 17 - Fits Encl. 24 x 20 - Steel/Wht
Hammond Manufacturing · 18P2117