Panasonic PM4H-S-H is a compact DIN48 analog timer designed for precise power-on delay operation in industrial control panels. It offers 16 switchable ranges from 0.1 s to 500 h and supports three input voltage variants — 100 to 240 V AC, 24 V AC/DC, and 12 V DC — ensuring compatibility with universal supply systems. The rugged IP65 front and 8-pin base make it ideal for OEM and factory automation applications.
Features
- Power ON-delay operation with wide timing range (0.1 s – 500 h)
- Front selector for time range and scale with clear index markings
- Multi-voltage compatibility (100–240 VAC / 24 VAC DC / 12 V DC)
- Stable timing: ±0.3 % fluctuation and ±5 % setting error
- Dual change-over contacts (2 Form C) rated 5 A at 250 VAC
- Sealed IP65 front panel for dust and moisture resistance
- Compact 62.5 mm depth with 8-pin terminal base
Technical specifications
| Model | PM4H-S-H |
| Operation mode | Power ON-delay |
| Contact arrangement | Relay timed out, 2 Form C (DPDT) |
| Time range | 0.1 s to 500 h (16 ranges) |
| Rated operating voltage | 100–240 V AC, 24 V AC/DC, 12 V DC (50/60 Hz) |
| Rated frequency | 50/60 Hz (common for AC types) |
| Rated power consumption | Approx. 10 VA (100–240 VAC), 2.5 VA (24 V AC), 1.5 W (12 V DC) |
| Rated control capacity | 5 A at 250 VAC (resistive load) |
| Operating time fluctuation | ±0.3 % (0.1 s – 1 h range) |
| Setting error | ±5 % (full-scale value) |
| Voltage error | ±0.5 % (between 85 % and 110 % rated voltage) |
| Temperature error | ±2 % (−10 to +50 °C) |
| Contact resistance (initial) | Max. 100 mΩ (at 1 A 6 VDC) |
| Contact material | Silver alloy |
| Mechanical life | 2 × 10^7 operations |
| Electrical life | 10^5 operations (at rated load) |
| Insulation resistance (initial) | Min. 100 MΩ (at 500 VDC) |
| Withstand voltage | 2,000 Vrms 1 min (between live and dead parts) |
| Allowable operating voltage range | 85 to 110 % of rated voltage (AC type) |
| Protective construction | IP65 (front panel) |
| Terminal type | 8-pin |
| Body depth | 62.5 mm |



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