Model 281 General Purpose Relay
The Model 281 General Purpose Relay provides robust control for diverse industrial applications. Its 3PDT contact configuration and 11-pin design ensure versatile integration into existing systems. Engineered for reliability, this relay offers a wide operating voltage range, accommodating both AC (24, 120, 240VAC) and DC (12, 24, 110VDC) requirements. This adaptability makes it suitable for various power supply setups. With an electrical life expectancy exceeding 500,000 operations and a mechanical life over 10,000,000 operations, the Model 281 minimizes downtime and maintenance needs, contributing to operational efficiency. Its operational stability across a -22° to +158° F temperature range further enhances its utility in demanding environments. This component delivers consistent performance for critical control circuits, ensuring dependable system operation.
3Pdt 10A Contact Rly
Specifications
| Description | Model 281 is a 3PDT 11 pin relay. |
|---|---|
| Contact Configuration | 3PDT |
| Pin Count | 11 |
| Contact material | Silver (AG) |
| Operating voltages | 12, 24, 110VDC; 24, 120, 240VAC |
| Operate time | 25ms maximum |
| Release time | 25ms maximum |
| Power consumption (AC) | Approx. 2.5VA (60Hz) |
| Power consumption (DC) | Approx. 1.5W |
| Insulation resistance | 100 megohm minimum (measured w/ DC500V megger) |
| Dielectric strength (Between live and non-live parts) | 2,000VAC, 1 min. |
| Dielectric strength (Between contact circuit and operating coil) | 2,000VAC, 1 min. |
| Dielectric strength (Between contacts of same polarity) | 1000V, 1 min. |
| Frequency response | 1,800 operations/hour |
| Temperature rise (Coil) | 185°F |
| Temperature rise (Contact) | 149°F |
| Vibration resistance | 0 to 6g (55Hz maximum) |
| Shock resistance | 10g minimum |
| Life expectancy (Electrical) | Over 500,000 operations (AC 210V, 50/60Hz, 10A) |
| Life expectancy (Mechanical) | Over 10,000,000 operations |
| Contact ratings (CSA Rated/Nominal, Resistive) | 120VAC, 10A; 240VAC, 10A; 30VDC, 10A |
| Contact ratings (CSA Rated/Nominal, Inductive) | 120VAC, 7.5A; 240VAC, 7A; 30VDC, 7A; 110VDC, 5A |
| Contact ratings (UL Rated, Resistive) | 240VAC, 10A; 30VDC, 10A |
| Contact ratings (UL Rated, Inductive) | 240VAC, 7A; 30VDC, 7A |
| Horsepower rating (120VAC) | 1/4 hp |
| Horsepower rating (240VAC) | 1/3 hp |
| Operating Temp | -22° to +158° F |
| Agency approval | UL Recognized and CSA Certified |
| Coil Rating (24VAC, 60Hz) | 105 mA |
| Coil Rating (24VAC, 50Hz) | 121 mA |
| Coil Rating (120VAC, 60Hz) | 18 mA |
| Coil Rating (120VAC, 50Hz) | 21 mA |
| Coil Rating (240VAC, 60Hz) | 10.5 mA |
| Coil Rating (240VAC, 50Hz) | 12.5 mA |
| Coil Rating (12VDC) | 120 mA |
| Coil Rating (24VDC) | 60 mA |
| Coil Rating (110VDC) | 13.5 mA |
| Maximum continuous applied voltage | 110% of rated voltage without overheating @ 68°F |
| Minimum operate voltage | 80% of rated voltage @ 68°F |
