The DR22 Series is a family of 22.5mm wide DIN Rail Mount, high performing Solid State Relays with ratings up to 30 Amps at 200 VDC.
These powerful and ready to use SSRs come with an integral heat sink, eliminating the need for complex thermal calculations. DR22 Series models are C-UL-US approved
- DBC substrate for superior thermal performance
- LED input status indicator
- IP20 touch-safe housing
- 1kHz maximum PWM frequency
- 3750 VAC optical isolation
- Output ratings up to 30 Amps at 200 VDC
- Integral heat sink eliminates the need for complex thermal calculations
- C-UL-US approved
Technical Data
Output specifications (1)
Description | 20A | 30A |
Absolute Maximum Rating [VDC] | 200 | 200 |
Recommended Operating Voltage [VDC] | 1-150 | 1-150 |
Maximum Off-State Leakage Current @ Rated Voltage [mA] | 0.1 | 0.2 |
Load Current, DC General Use UL508 @ 40°C [ADC] | 20 | 30 |
Load Current, DC Motor Starting UL508 FLA @ 40°C [ADC] | 4.1 | 5.4 |
Minimum Load Current [mA] (2) | 5 | 5 |
Maximum Surge Current [ADC] (10ms) | 58 | 86 |
Maximum On-State Voltage Drop @ Rated Current [VDC] | 0.680 | 0.480 |
Maximum On-State Resistance [RDS-ON] [Ohms] | 0.034 | 0.016 |
Maximum Pulse Width Modulation Frequency [Hz] (3) | 1000 | 900 |
Motor Rating UL 508 [HP (kW)]: 120 VDC | 1/3 (0.25) | ½ (0.37) |
Input Specifications (1)
Description | DC Control |
Control Voltage Range | 4-32 VDC |
Maximum Reverse Voltage | -32 VDC |
Minimum Turn-On Voltage (4) | 4 VDC |
Must Turn-Off Voltage | 1 VDC |
Minimum Input Current (for on-state) | 11 mA |
Maximum Input Current | 15 mA |
Nominal Input Impedance | Current Regulated |
Maximum Turn-On Time [µsec] | 75 |
Maximum Turn-Off Time [µsec) | 100 |
General Specifications (1)
Description | Parameters |
Dielectric Strength, Input to Output (50/60Hz) | 3750 Vrms |
Dielectric Strength, Input/Output to Case (50/60Hz) | 250Vrms |
Minimum Insulation Resistance (@ 500 VDC) | 109 Ohms |
Maximum Capacitance, Input/Output | 8 pF |
Ambient Operating Temperature Range | -40 to 80°C |
Ambient Storage Temperature Range | -40 to 100°C |
Weight (typical) | 298g (10.5oz) |
Housing Material | UL94 V-0 |
Heat Sink Material | Aluminium |
Din Rail Clip Material | Zinc Plated Steel |
Hardware Finish | Nickel Plating |
Input Terminal Screw Torque Range (in-lb/Nm) | 13-15/1.5-1.7 |
Load Terminal Screw Torque Range (in-lb/Nm) | 13-15/1.5-1.7 |
Humidity | 95% non-condensing |
LED Input Status Indicator | Green |
Input Current Information
4-35 VDC Input |

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Surge Current Information
DR2220D20U | DR2220D30U |

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Thermal Derate Information
DR2220D20U | DR2220D30U |

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Equivalent Circuit Block DIagrams/Wiring Diagram
Load can be wired in position A or B inductive loads must be diode suppressed. |

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Mechanical Specifications
Tolerances ±0.02 in / 0.5 mm
All dimensions are in: inches (millimeters)
General Notes
1) All parameters at 25°C unless otherwise specified.
2) Low current loads and high ambient temperature can affect turn-on time.
3) 8 VDC Minimum control voltage. Resistive loads only. Consider switching losses; at maximum frequency reduce to 75% output current. Recommended suppreor diode connected at load side, see wiring diagram.
4) Increase minimum voltage by 1 V for operations from -20 to -40°C.
5) Minimum spacing to obtain max. current is 22.5mm between adjacent units
Agency Approvals, Conformances and EMC
cRU US E116949 IEC CE RoSH EMC
Certification in accordance with:
United States Standard for Industrial Control Equipment - UL 508 and
Canadian Standard Association for Industrial Control Equipment – C22.2 No. 14.
Part Numbers
Product Selection
Control Voltage | 20A | 30A |
4-32 VDC | DR2220D20U | DR2220D30U |
Available Options