CMD48125Crydom - Relays
CMD48125 Description
The Crydom CMD48125 is a relay rated at 480 V and 125 A. Components of this type are commonly used in switching heaters, motors, lighting and other loads in industrial control systems.
USComponent supplies power semiconductors and industrial electronic components to engineers, OEMs and maintenance teams worldwide, including legacy and hard-to-find part numbers. Please confirm ratings, package and pin-out against the manufacturer's datasheet before ordering, and request a quote for current pricing and lead time on the CMD48125.
Summary of Features
Target Applications
Crydom CMD48125 is used for industrial applications.
Key Specifications
Crydom CMD48125 is a 125 A panel-mount solid state relay, CMD/CMA48 Series (48-530 VAC), SCR output, DC control (4-32 VDC), zero-cross turn-on, LED input indicator, IP20 touch-safe housing with box-clamp terminals. Source: Crydom CMD/CMA48 Series datasheet (Rev. 113011). Values at 25°C unless noted.
| Parameter | Value |
|---|---|
| Output | |
| Operating voltage (47-63 Hz) | 48-530 Vrms |
| Maximum load current | 125 Arms |
| Transient overvoltage | 1200 Vpk |
| Maximum 1 cycle surge current (50/60 Hz) | 1670/1750 Apk |
| Maximum on-state voltage drop @ rated current | 1.6 Vpk |
| Maximum off-state leakage @ rated voltage | 10 mArms |
| Minimum off-state dv/dt | 500 V/µs |
| Thermal resistance junction to case (Rjc) | 0.22 °C/W |
| Maximum I²t for fusing (1/2 cycle, 50/60 Hz) | 13950/12709 A²s |
| Switching type | zero-cross turn-on |
| Input | |
| Control voltage range | 4-32 VDC |
| Typical input current | 17 mA @ 5 VDC (max 30 mA) |
| Maximum turn-on / turn-off time | 1/2 cycle / 1/2 cycle |
| General | |
| Dielectric strength, input/output/base | 4000 Vrms |
| Ambient operating temperature | -40 to 80°C |
| Weight (typical) | 3.0 oz (86.5 g) |

