True RMS Voltage Monitor
The 26SG True RMS Voltage Monitor provides precise voltage monitoring for industrial applications. Its 80-550 VAC input range accommodates diverse system requirements. With SPDT x 2 10 Amp @ 240VAC output contacts, it ensures reliable control. The unit features user-selectable high-low or DPDT relay operation, offering adaptability for various fault conditions. Operators can configure energize-on-fault or de-energize-on-fault responses, enhancing system safety protocols. A repeat accuracy of ± 0.5% under fixed conditions ensures consistent performance. Configurable start-up delays and automatic restart options, with a range up to 300 seconds, allow for system stabilization. The monitor's robust design, including Lexan 920 polycarbonate enclosure with UL 94 V-0 flammability rating, supports operation in demanding environments from -20°F to +130°F. This device is engineered for sustained operational integrity and system protection.
1Ph Voltage Monitor
Specifications
| Contact Material | Silver with gold flash contacts for low current |
|---|---|
| Input Voltage (VAC) | 80-550 Volts |
| Input Current | 1mA |
| Input Frequency | 50/60Hz (400Hz optional with jumper) |
| DC Power | 24 Volts, 2 watts |
| Output Rating (Resistive) | 240V AC, 10A |
| Output Rating (General Use) | 120V AC, 4A |
| Output Rating (General Use) | 240V AC, 2A |
| Output Rating (Pilot Duty) | C300, Pilot Duty |
| Start-up Delay | 5 secs. Min. or Automatic reset delay setting (to allow for solid lock) |
| Output Contacts | SPDT x 2 10 Amps @ 240VAC |
| Repeat Accuracy | ± 0.5% (fixed conditions) |
| Reset Type | Manual or Automatic |
| Expected Relay Life (Mechanical) | 10 million operations |
| Expected Relay Life (Electrical) | 100,000 min. at rated load |
| Operating Temperature | -20°F to +130°F |
| Humidity Tolerance | 0-97% w/o condensation |
| Enclosure Material | Lexan 920, Polycarbonate |
| Enclosure Flammability Rating | UL 94 V-0 1.5 mm |
| Mounting | DIN Rail 35mm |
| Display Accuracy | +/- 0.5% |
| Relay Operation Options | User selectable High-Low or DPDT |
| Fault Energization Options | Energize on fault or de-energize on fault |
| High Voltage Setting (Factory Default) | Enabled, Set point = 550V, Delay = 5S |
| High Voltage Set Point Range | Low setpoint + 1% to 550V in 0.5V steps |
| High Trip Delay Range | 0 to 20.0 seconds in 0.1Sec steps |
| Low Voltage Setting (Factory Default) | Enabled, Set point = 80V, Delay = 5S |
| Low Voltage Set Point Range | 80 to High Setpoint -1% in 0.5V steps |
| Low Trip Delay Range | 0 to 20.0 seconds in 0.1Sec steps |
| Relay Operation (Factory Default) | HI-LO |
| Relay Operation on Fault (Factory Default) | De-energize on fault |
| Restart (Factory Default) | Automatic |
| Automatic Restart Delay Range (Factory Default) | 5S |
| Automatic Restart Delay Range | 0 to 300.0 Seconds in 0.1Sec steps |





