HHQ4 Series time control switches provide scheduled switching for lighting and equipment circuits. The models share a 72×120×48mm body and external No. 7 battery backup, while the available control mode differs between standard timing, ringing, light/rain control and latitude-longitude timing.
Common Parameters
| Dimensions | 72 × 120 × 48mm |
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| Battery | External 1.5V No. 7 battery |
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| Installation Method | Device mounting, rail mounting or wall mounting |
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HHQ4-A
| Power Supply | AC220V, 50Hz |
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| Time Control Range | 1 minute to 168 hours |
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| Timing Error | ≤±1s/day |
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| Program Capacity | 16 switch groups per day, with keypad lock |
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| Contact Capacity | 20A AC250V resistive load |
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HHQ4-D
| Power Supply | AC220V, 50Hz |
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| Ringing Time Range | 1s to 23h59m59s |
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| Timing Error | ≤±1s/day |
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| Program Capacity | 80 times/day |
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| Contact Capacity | 20A AC250V resistive load |
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HHQ4-G
| Power Supply | AC/DC 100-240V |
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| Time Control Range | 1 minute to 168 hours |
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| Timing Error | ≤±1s/day |
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| Program Capacity | 16 groups/day, with light-control and rain-control functions |
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| Probe Opening Size | 2 × Φ3.4 +0.2 / 29.5 ±0.2mm |
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| Contact Capacity | 20A AC250V resistive load |
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HHQ4-J
| Power Supply | AC220V |
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| Working Mode | Latitude/longitude control and time control |
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| Time Control Range | 1 minute to 168 hours |
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| Program Capacity | 16 groups/day |
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| Contact Capacity | 3A AC250V resistive load |
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