SAA40S48 Series Heavy-Duty Single-Phase SSR
Industrial-Grade AC Power Switching Up to 120A
Critical Features
High-Current Handling??120A surge current, 5-480VAC load range, 1.5V max on-state drop
Precision Control??70-280VAC control voltage, LED status indicator, ??1ms switching
Robust Construction??2000Vrms isolation (I/O & output-baseplate), -35??~+75?? operating temp
Safety Certified??CE compliant, zero-crossing trigger, 0.2mA max off-state leakage
Technical Specifications
Category Parameters
Output Max load current: 120A AC
On-state drop: ??1.5V AC
Switching delay: ??1ms
Control Control voltage: 70-280VAC
Min turn-on voltage: 3VAC
Input current: ??5mA
Mechanical Heat sink: A50/A90*
Dimensions: 57.8??47.5??27mm
*Heat sink mandatory for >40A loads; forced air cooling required at 120A
Derating Curve
? 40A load: 100% rating at 80?? ambient
? 120A load: Derate to 60% at 40??, 30% at 70??
Industrial Applications
? Power systems: Industrial furnaces, transformer voltage regulation
? Heavy machinery: Mining equipment motor drives, marine power units
? Manufacturing: Plastic injection molding heaters, production line actuators
Safety Compliance
?? MUST use specified heat sinks (A50/A90) ?? DO NOT exceed derating curve ?? Minimum 70VAC control voltage
