IEC 60360 Temperature-Rise Test Lampholder Sleeves & Nickel Rings (Figures 3 to 14)
Series overview. This page covers the complete range of IEC 60360 temperature-rise test lampholder sleeves (nickel rings) for lamp cap temperature-rise measurement, from Figure 3 (E14/20) to Figure 14 (E12/15). Each figure has its own inner diameter and slit geometry, so sleeves are not interchangeable — pick the figure that matches the cap on your lamp. Every model links to its own page with photos, the standard drawing and full dimensions.
● Product Overview:
Complies with the measurement method standards for lamp cap temperature rise as stipulated in IEC60360, QB/T2512-2001, and GB/T24392-2009.
● Technical Parameters
1. Nickel (Imported from Japan): Content over 99%
2. Vickers Hardness: 135 ± 15
3. Thickness: 0.5mm ± 0.02mm
4. Spring Material: Diameter 0.8mm, Length wraps around the sleeve 1-1.5 turns
5. Quality and Roughness: The composition and properties of the material should be consistent. The nickel sheet should be rolled into a smooth cylinder with a clean surface. The sleeve should be longitudinally cut and should not have any bending, waviness, indentations, inclusions, grease or other defects.
6. Specifications and models refer to the table below
| No. | Name | Standards | Item |
| 1. | E14/20 Approximate dimensions of test lampholder | IEC60360 Figure 3,D13.5mm | SC-TTF3 |
| 2. | E17/20 Approximate dimensions of test lampholder | IEC60360 Figure 4, D 16mm | SC-TTF4 |
| 3. | E26/26d/E27 Approximate dimensions of test lampholder | IEC60360 Figure 5,D 26mm | SC-TTF5 |
| 4 | E39/E40 Approximate dimensions of test lampholder | IEC60360 Figure 6,D 39mm | SC-TTF6 |
| 5 | E14/23×15 Approximate dimensions of test lampholder | IEC60360 Figure 7,D 15mm | SC-TTF7 |
| 6 | E14/25×17 Approximate dimensions of test lampholder | IEC60360 Figure 8,D 17mm | SC-TTF8 |
| 7 | B22/25×26,B22d-3 Approximate dimensions of test lampholder | IEC60360 Figure 9,D 26mm | SC-TTF9 |
| 8 | B15d Approximate dimensions of test lampholder | IEC60360 Figure 10,D 14.5mm | SC-TTF10 |
| 9 | B15d/27×22 Approximate dimensions of test lampholder | IEC60360 Figure 11,D 22mm | SC-TTF11 |
| 10 | B15d/24×17 Approximate dimensions of test lampholder | IEC60360 Figure 12,D 17.5mm | SC-TTF12 |
| 11 | B22/B22d Approximate dimensions of test lampholder | IEC60360 Figure 13,D 21.5mm | SC-TTF13 |
| 12 | E12/15 Approximate dimensions of test lampholder | IEC60360 Figure 14,D 11.4mm | SC-TTF14 |

Individual product pages (12 figures)
Each figure has its own sleeve: dimensions and slit width are machined to that figure and are not interchangeable. Click a model for photos, the standard drawing and full dimensions.
- SC-TTF3 – E14/20 temperature-rise test lampholder sleeve (IEC 60360 Figure 3, 13.5 mm ID)
- SC-TTF4 – E17/20 temperature-rise test lampholder sleeve (IEC 60360 Figure 4, 16 mm ID)
- SC-TTF5 – E26/26d/E27 temperature-rise test lampholder sleeve (IEC 60360 Figure 5, 26 mm ID)
- SC-TTF6 – E39/E40 temperature-rise test lampholder sleeve (IEC 60360 Figure 6, 39 mm ID)
- SC-TTF7 – E14/23×15 temperature-rise test lampholder sleeve (IEC 60360 Figure 7, 15 mm ID)
- SC-TTF8 – E14/25×17 temperature-rise test lampholder sleeve (IEC 60360 Figure 8, 17 mm ID)
- SC-TTF9 – B22/25×26, B22d-3 temperature-rise test lampholder sleeve (IEC 60360 Figure 9, 26 mm ID)
- SC-TTF10 – B15d (skirtless) temperature-rise test lampholder sleeve (IEC 60360 Figure 10, 14.5 mm ID)
- SC-TTF11 – B15d/27×22 temperature-rise test lampholder sleeve (IEC 60360 Figure 11, 22 mm ID)
- SC-TTF12 – B15d/24×17 temperature-rise test lampholder sleeve (IEC 60360 Figure 12, 17.5 mm ID)
- SC-TTF13 – B22/B22d temperature-rise test lampholder sleeve (IEC 60360 Figure 13, 21.5 mm ID)
- SC-TTF14 – E12/15 temperature-rise test lampholder sleeve (IEC 60360 Figure 14, 11.4 mm ID)














