Schneider Electric SSP1A150BDT Harmony SSP1 50A Panel Mount 3-32V DC In 24-300V AC Out Solid State Relay

The Schneider Electric SSP1A150BDT is a Harmony SSP1 panel-mount solid state relay rated 50 A with zero-voltage switching, a 3-32 V DC control input, and a 24-300 V AC load output. It ships with a thermal pad for heatsink mounting, switches loads up to 2 hp at 240 V AC, and carries an IP20 rating.

Technical Specifications

Certifications & Standards

• CE
• UL
• EAC
• CSA
• IEC 62314
• CSA C22.2 No 14-13
• IEC 60950-1
• UL 508

Selection Notes

SSP1A150BDT doubles the load current of the 25 A SSP1 sibling in the same panel-mount package, handling motor loads up to 2 hp at 240 V AC. Its lower thermal resistance (0.45 C/W versus 0.8 C/W on the 25 A part) reflects the larger die needed to dissipate heat at 50 A - the same thermal pad interface (0.48 C-in2/W) still applies, but the heatsink must handle roughly double the dissipated power. Surge current (625 A/16.6 ms) and MCB coordination (Type 1: 40 A, Type 2: 32 A) are sized up accordingly for upstream short-circuit protection selection.