- Part number
- SSP1A475BDT
- Model no
- SSP1
- UL
- CSA
- CE
- EAC
Schneider Electric SSP1A475BDT Harmony SSP1 75 A Zero-Voltage Switching Solid State Relay
Harmony SSP1 solid state relay, 75 A, zero-voltage switching, 4-32 V DC input, 48-660 V AC output, panel mount.
Description
About the SSP1
About the SSP1
The Schneider Electric SSP1A475BDT is a Harmony SSP1 single-phase solid state relay rated 75 A, panel mounted with a supplied thermal pad. It switches a 48-660 V AC load from a 4-32 V DC control input using zero-voltage switching, with a 0.5 cycle turn-on and turn-off response time and no mechanical contacts to wear.
Certifications & Standards
- CE
- EAC
- UL
- CSA
- IEC 60950-1
- UL 508
- CSA C22.2 No 14-13
- IEC 62314
Selection Notes
With a 4-32 V DC control input, the SSP1A475BDT is the variant for panels where the control signal comes from a PLC output, transmitter or low-voltage logic circuit rather than line voltage; the M7T-suffix variant in the same SSP1 range takes a 90-280 V AC input instead. Zero-voltage switching turns the SCR on only as the load waveform crosses zero, which limits inrush-related electrical noise and is the reason this relay is specified over a mechanical contactor for resistive heating loads that switch frequently. The 75 A rating and supplied thermal pad size the heatsink interface for continuous duty at rated current; derate the load current for higher ambient or reduced heatsink area.
Applications
Used to switch resistive heating elements, single-phase motor loads and other high-cycle AC loads from low-voltage DC control signals without contact wear.
Specification
Full specification
Main 8
| Range of Product | Harmony Solid State Relays |
|---|---|
| Provided accessory | Thermal pad |
| Product or Component Type | Panel mount relay |
| Device short name | SSP1 |
| Mounting Support | Panel |
| Number of phases | 1 phase |
| Line Rated Current | 75 A |
| Output switching mode | Zero voltage switching |
Complementary 32
| solid state switching type | Zero voltage switching, SCR output |
|---|---|
| test button | Without test button |
| [Uc] control circuit voltage | 4...32 V DC |
| pick-up voltage | 4 V DC turn-on |
| drop-out voltage | 1 V DC turn-off |
| Response time | 0.5 cycle (turn-on), 0.5 cycle (turn-off) |
| input current range | 7…12 mA |
| Output voltage | 48...660 V AC |
| Load current | 0.15…75 A |
| Transient overvoltage | 1200 V |
| Maximum I²t for fusing | 4150 A².s for 8.33 ms at 60 Hz, 4555 A².s for 10 ms at 50 Hz |
| Co-ordination type | Type 1 - 50 A miniature circuit breaker (MCB) B, Type 2 - 40 A miniature circuit breaker (MCB) B |
| Maximum leakage current | 1 mA off-state |
| Maximum voltage drop | <1.15 V on-state |
| DV/dt | 500 V/µs off-state at maximum voltage |
| Power factor | 0.5 (with maximum load) |
| Insulation resistance | 1000 MOhm at 500 V DC |
| Maximum capacitance | 8 pF for input/output |
| Dielectric strength | 4 kV AC for input/output, 4 kV AC for input or output to case |
| [Uimp] rated impulse withstand voltage | 6 kV output to case, 6 kV input to output |
| Tightening torque | 1.5...1.7 N.m for input, 2...2.2 N.m for output |
| Connections - terminals | Screw terminals 0.2...3.3 mm², 24 AWG...12 AWG) with cable end input, Screw terminals 0.5...5.26 mm², 20 AWG...10 AWG) with cable end output, Screw terminals 0.2...3.3 mm², 24 AWG...12 AWG) without cable end input, Screw terminals 0.5...8.26 mm², 20 AWG...8 AWG) 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, Ring lugs 11.7 x 4.5 mm output |
| Thermal resistance | 0.3 °C/W junction to case |
| thermal pad impedance | 0.48 °C-in²/W at 25 psi |
| Local signalling | LED, green input |
| IP degree of protection | IP20 |
| Safety reliability data | B10d = 1731395, MTTFd = 1875.9 years |
| Net Weight | 3.1 oz (89.2 g) |
| Overvoltage category | III |
| Device presentation | Complete product |
| Motor controller rating | 1.5 hp 120 V AC, 3 hp 240 V AC, 7.5 hp 480 V AC |
| Surge current | 1000 A 16.6 ms |
Environment 6
| Ambient Air Temperature for Operation | -40…176 °F (-40…80 °C) |
|---|---|
| Ambient Air Temperature for Storage | -40…257 °F (-40…125 °C) |
| Pollution degree | 2 |
| Marking | CSA, CE, UL, EAC |
| Standards | IEC 60950-1, UL 508, CSA C22.2 No 14-13, IEC 62314 |
| Product Certifications | CE, EAC, UL, CSA |
Show all 60 specifications ↓ Show less ↑14 more values in Identification, Contractual warranty, Logistics.
Identification 8
| Part number | SSP1A475BDT |
|---|---|
| Type designation | SSP1 |
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3606485442082 |
Contractual warranty 1
| Warranty (in months) | 18 |
|---|
Logistics 5
| Country of origin | MX |
|---|---|
| Shipping weight | 0.089 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
Documents
Documents for SSP1A475BDT
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Ask us for the datasheet
Certifications
Certifications and standards
- UL
- CSA
- CE
- EAC
- IEC 60950-1
- UL 508
- CSA C22.2 No 14-13
- IEC 62314
Quick answers
Questions about the SSP1
What is the rated current of SSP1?
The rated current of SSP1 is 75 A.
What is the HS code of SSP1 for customs?
The tariff (HS) code on file for SSP1 is 85364900.
What is the EAN of SSP1?
The EAN (GTIN) of SSP1 is 3606485442082.
Where does SSP1 ship from, and how fast?
SSP1 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
Reviews
Customer reviews
Series
Schneider Electric Harmony Solid State Relays
- Brand
- Schneider Electric
- Series
- Harmony Solid State Relays
