Spec Sheet
$31.85
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The Square D SSP1A125BD is a panel mount static relay designed for industrial control systems. It accepts wiring with bare cable, crimped cable ends, fork lugs, or ring lugs. Its rated current is 25 A, with a control circuit voltage of 3 to 32 V DC and an output load voltage of 24 to 300 V AC.
Features include a test button for debugging, thermal dissipation via a factory-installed thermal pad, and mounting options on metallic panels or DIN rails with an accessory heatsink. A visual indicator displays input status, and an alarm output provides quick response to unexpected events.
Technical Specifications
| Complementary Attributes - Maximum Horse Power Rating | 0.5 hp 120 V AC, 1 hp 240 V AC |
| Complementary Attributes - Maximum I T For Fusing | 259 A².s for 8.33 ms at 60 Hz, 285 A².s for 10 ms at 50 Hz |
| Complementary Attributes - Maximum Voltage Drop | <1.15 V on-state, <1.15 V on-state, <1.15 V on-state, <1.15 V on-state |
| Complementary Attributes - Uc Control Circuit Voltage | 3...32 V DC, 3...32 V |
| Complementary Attributes - Uimp Rated Impulse Withstand Voltage | 6 kV output to case, 6 kV input to output |
| Complementary Attributes - Absolute Maximum Voltage | 600 V |
| Complementary Attributes - Line Rated Current | 25 A |
| Complementary Attributes - Maximum Leakage Current | 1 mA off-state |
| Complementary Attributes - Maximum Switching Voltage | 1 V DC turn-off |
| Complementary Attributes - Minimum Switching Voltage | 3 V DC turn-on |
| Complementary Attributes - Rated Current | 25 A |
| Persona Type Ids | BM9, EU, LC, OM, OM8, PB, SC, SI, VR |
| Persona Type Names | Charge Point Operator, End User, Contractor, Original Equipment Manufacturer, OEM - Control Panelbuilder, Panel Builder, Electrician, System Integrator, IT Channel Partner |
| Market Segmentation Id | COMMERCIAL, INDUSTRIAL |
| Market Segmentation | Commercial, Industrial |
| Control Type | without test button, without test button |
| Dielectric Strength | 4 kV AC for input/output, 4 kV AC for input or output to case |
| Marking | CSA, CE, EAC, UL |
| Protection Device Type | type 1 - 25 A miniature circuit breaker (MCB) B, type 2 - 20 A miniature circuit breaker (MCB) B |
| Response Time | 0.5 cycle (turn-on), 0.5 cycle (turn-off) |
| Safety Reliability Data | MTTFd = 1875.9 years, B10d = 1731395 |
| Tightening Torque | 1.5...1.7 N.m for input, 2...2.2 N.m for output |
| Connections Terminals | ring lugs 11.7 x 4.5 mm output, screw terminals 0.2...3.3 mm², AWG 24...AWG 12) with cable end input, screw terminals 0.5...5.26 mm², AWG 20...AWG 10) with cable end output, screw terminals 0.2...3.3 mm², AWG 24...AWG 12) without cable end input, screw terminals 0.5...8.26 mm², AWG 20...AWG 8) without cable end output, forked type tag connectors 9.2 x 4 mm input, ring lugs 9.2 x 4 mm input, forked type tag connectors 11.7 x 4.5 mm output, screw connectors |
| Carbon Footprint Of The Distribution Phase A4 | 0.012515, 0 kg CO2 eq. |
| Carbon Footprint Of The End Of Life Phase C1 To C4 | 0 kg CO2 eq., 0.022964 |
| Carbon Footprint Of The Installation Phase A5 | 0.00054394, 0 kg CO2 eq. |
| Carbon Footprint Of The Manufacturing Phase A1 To A3 | 1 kg CO2 eq., 1.0766 |
| Carbon Footprint Of The Use Phase B2 B3 B4 B6 | 2 616 kg CO2 eq., 2616.0366198089 |
| Control Circuit Voltage | 3...32 V |
| Certificate Agency | CSA, UL, CE, EAC |
| Local Data Status | Publishable |
| Local Publishable Date | 2026-03-26 |
| Return Indicator | Y |
| Stocking Flag | N |
| Manufacturing Carbon Footprint | 1.0766 |
Product Documents
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square d 25a panel mount solid state relay ssp1a125bd mayer ee084b56 bd9a 4f3d b7c9 brochure 477.4 KB
Declaration Of Conformity 1 307.68 KB
Declaration Of Conformity 2 275.26 KB
Manual 546.9 KB
Instruction Sheet 463.74 KB
DIA5ED2130302EN 12.7 MB
Certificate 1 219.22 KB
Product Environmental 680.8 KB
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