MODEL 660 Trip Control
The MODEL 660 Trip Control provides precise process monitoring with its automatic reset and adjustable trip points. Users can fine-tune the 4-20mA input signal with a 1-10% adjustable dead band, ensuring accurate system response. Operating reliably across a -13° to +122° F temperature range, this unit features a 10 amps at 240VAC resistive contact rating. Its robust design includes a mechanical relay life of 10 million operations and an electrical life of 100,000 at rated load. This ensures long-term operational stability in demanding environments. The unit operates on 24VDC ±5% with a maximum 30mA supply current. Backed by a 5-year unconditional warranty, the MODEL 660 offers consistent performance for critical industrial applications. Status is clearly indicated via top-mounted LEDs for rising trip, falling trip, and input loop error conditions.
Trip Control
Specifications
| Reset Type | Automatic |
|---|---|
| Trip Points | Adjustable |
| Dead Band | Adjustable |
| Warranty | 5-Year unconditional |
| Operating voltage | 24VDC ±5% |
| Supply current | 30mA maximum |
| Input signal | 4-20mA |
| Input resistance | 50Ω |
| Input loop error (High) | 23 - 25mA |
| Trip adjustment | 4 - 20mA |
| Dead band adjustment | 1 - 10% |
| Hysteresis, Rising trip point | 0.9% at midrange |
| Hysteresis, Falling trip point | 0.4% at midrange |
| Contact Rating | 10 amps at 240VAC resistive |
| Operating temperature | -13° to +122° F |
| Expected relay life, Mechanical | 10 million operations |
| Expected relay life, Electrical | 100,000 at rated load |
| Humidity tolerance | 0-97% w/o condensation |
| Enclosure material | ABS plastic |
| Mounting | 11-pin socket (*order separately) |
| Required Socket Part Number | 51X016 |
| Status Indication | Top-mounted LEDs for RISING TRIP, FALLING TRIP, and INPUT LOOP ERROR |