CLD16 panel devices provide visual indication or audible signaling through a 22mm mounting opening. The range uses a compact cylindrical body, a high strength polycarbonate lens and built-in screw terminals. The indicator version uses high brightness, pure color LED chips. Five function codes distinguish the standard indicator, buzzer, continuous buzzer, flashing buzzer and steady light with continuous buzzer.
Choose the function and supply code together. The AC-only and AC/DC versions have different internal circuits. The ordinary working face is IP40; the /FS waterproof indicator version is specified as IP65. Black is a choice only for an unlit buzzer, rather than an illuminated signal face.
| Field | Codes and meaning | Selection condition |
|---|---|---|
| Series and aperture | CLD16: standard signal device range; 22: 22mm panel opening | Standard full models begin CLD16-22. |
| Function | DS: indicator light; M: buzzer; ML: continuous buzzer; SM: flashing buzzer; SML: steady light with continuous buzzer | Photographs alone do not identify the electrical function; retain the exact function code. |
| Auxiliary version | No auxiliary code: conventional; /F: discharge lamp version; /K: interference voltage suppression version; /FS: waterproof indicator, IP65 | These are special guide options. Specify the intended function and auxiliary version together; the full standard model table does not enumerate every auxiliary combination. |
| Color | R: red; G: green; Y: yellow; W: white; S: blue in the full model tables; B: black for an unlit buzzer only | The general guide also labels the blue swatch BU. Use the full model table's S code for the listed standard blue selections. |
| Supply, △ | T: 6VAC/DC; J: 12VAC/DC; B: 24VAC/DC; C: 36VAC/DC; E: 48VAC/DC; FD: 110VAC/DC; MD: 220VAC/DC; QD: 380VAC/DC; F: 110VAC; M: 220VAC; Q: 380VAC | Replace △ after the slash with the required supply code. Do not replace an AC-only unit with an AC/DC unit without checking the circuit and temperature conditions. |
| Interference voltage setting | 24V, 40V, 60V, 90V or 110V | Specify the required suppression setting for the interference-resistant version. Other supply or suppression values are custom order options. |
| Function | White | Green | Red | Yellow | Blue |
|---|---|---|---|---|---|
| Indicator light | CLD16-22DS-W/△ | CLD16-22DS-G/△ | CLD16-22DS-R/△ | CLD16-22DS-Y/△ | CLD16-22DS-S/△ |
| Buzzer | CLD16-22M-W/△ | CLD16-22M-G/△ | CLD16-22M-R/△ | CLD16-22M-Y/△ | CLD16-22M-S/△ |
| Continuous buzzer | CLD16-22ML-W/△ | CLD16-22ML-G/△ | CLD16-22ML-R/△ | CLD16-22ML-Y/△ | CLD16-22ML-S/△ |
| Flashing buzzer | CLD16-22SM-W/△ | CLD16-22SM-G/△ | CLD16-22SM-R/△ | CLD16-22SM-Y/△ | CLD16-22SM-S/△ |
The steady light with continuous buzzer is listed as CLD16-22SML-〇/△, where 〇 is the selected face color and △ is the supply code. Specify this complete function separately from ML and SM; a separate SML dimension drawing is not included in the three-page selection document.
| Characteristic | Specified value or condition |
|---|---|
| Ambient temperature | −25°C to +55°C, without icing |
| Relative humidity | 45–85%RH |
| Continuous operating life | At least 40,000h |
| Permitted instantaneous voltage fluctuation | ±20% for the 110V and higher voltage range |
| Power frequency withstand voltage | 2.5kVAC RMS for 1min |
| AC operating frequency | 50–60Hz |
| Rated operating current | 6VAC/DC: no more than 40mA; other listed supplies: no more than 25mA |
| Luminance | At least 100cd/m² |
| Comparative tracking index | CTI≥100; flame retardant construction |
| Insulation resistance | 5MΩ for Ui≤60V; 50MΩ for 60V<Ui≤660V |
| Working face protection | IP40 for the conventional version; IP65 for the /FS waterproof indicator version |
| Stated product standards | EN60947-5-1 and GB/T14048.5 |
| Dimension | DS / M / ML / SM drawings |
|---|---|
| Panel opening / body mounting diameter | 22mm |
| Head diameter | 29.6mm |
| Front projection | 13mm from the panel plane |
| Rear depth | 38.7mm from the panel plane, before additional wiring clearance |
The internal wiring drawings use terminals X1 and X2. AC/DC indicator versions use a resistive voltage reduction circuit; AC-only versions use a capacitive voltage reduction circuit. The interference-resistant circuits add a threshold network. At 110V and above, the AC/DC housing runs warmer than the equivalent AC-only indicator. Use AC-only versions at 50–60Hz; operation outside that frequency range can damage the device.
The selection document lists CCC against GB/T14048.5 and TUV/CE against EN60947-5-1, with the supporting documents available from the CNTD representative. Request the documentation applicable to the chosen function, supply and region when it is required for the project. Order the function code, color, supply, auxiliary version and any interference suppression setting explicitly; these choices determine the actual indication and audible behavior.
