HHN-SL Series relay amplification modules are used between low-power control signals and field loads that need a stronger or isolated output stage. The models share rail-mount installation and control-interface use, while output device type, load current and response behavior vary by module.
Common Parameters
| Installation method | Standard DIN rail installation; NS35/7.5 or NS32 guide slot where specified |
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| Input compatibility | NPN and PNP compatible on applicable models |
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| Service life | ≥100 million operations on applicable models |
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| Circuit insulation | Optocoupler isolation on HHN-SL1, HHN-SL2 and HHN-SL5 |
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HHN-SL1
| Output type | MOS transistor output |
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| Input / output data | 24V input by default; 3V-24V control range; NPN/PNP compatible |
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| Load and response | Resistive load ≤3A, instantaneous 8A; inductive load ≤2A, instantaneous 8A; input drive current ≥15mA; response time ≥0.2ms |
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| Protection | 10A short-circuit protection |
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HHN-SL2
| Output type | Thyristor contactless output |
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| Input / output data | 24V input by default; 3V-24V control range; NPN/PNP compatible |
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| Load and response | Resistive load ≤2A, instantaneous 5A; inductive load ≤1.5A, instantaneous 5A; input drive current ≥15mA; response time ≥20ms |
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| Protection | 10A short-circuit protection |
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HHN-SL3
| Output type | Low-level output, 0V |
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| Input / output data | PNP/NPN compatible input; positive and negative control compatible |
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| Load and response | Switching frequency ≤50K; long-term load current 6A; IR2807 drive device rated up to 82A and 75V |
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| Service life | Drive tube service life 1 million hours |
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HHN-SL4
| Output type | AC thyristor output |
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| Input / output data | 220VAC output; 24V input signal by default; 3V-24V control range; PNP/NPN compatible |
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| Load and response | Response time ≤0.2ms; 50Hz-60Hz operating frequency; switching frequency ≤50K; long-term load current 10A, instantaneous 30A |
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| Surge capacity | 65-72A non-repetitive surge peak on-state current |
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HHN-SL5
| Output type | High-power MOSFET output |
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| Input / output data | 24V output by default; 3V-24V control range; NPN/PNP compatible |
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| Load and response | Resistive load ≤2.5A, instantaneous 10A; inductive load ≤2A, instantaneous 10A; input drive current ≥5mA; response time ≥0.3ms |
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| Protection | SL5 3A short-circuit protection; SL6 5A; self-recovery protection per channel ≥3A; continuous working current within 2A |
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