301P
Tekmar One Zone Switching Relay
Tekmar One Zone Switching Relay
Details
Specifications
| Control | Microprocessor control. This is not a safety (limit) control. |
| Packaged weight | 5.0 lb. (2250 g) |
| Dimensions | 8-3/16" H x 10-11/16" W x 2-3/8" D (208 x 271 x 60 mm) |
| Enclosure | Cover: ABS plastic, Base: galvanized steel, NEMA type 1 |
| Approvals | CSA C US |
| Ambient conditions | Indoor use only, 32 to 122°F (0 to 50°C), RH ?90% non-condensing |
| Power supply | 115 V (ac) ±10%, 60 Hz, 20 A |
| Transformer | 40 VA, expandable to 80 VA with additional transformer M3069 (sold separately) |
| Fuses | T5A 250 V slow blow, two spare fuses included |
| Pump relays | 230 V (ac), 5 A, 1/3 hp |
| Boiler XX end switch | 24 V (ac), 5 A |
| DHW end switch | 24 V (ac), 5 A |
| Mod boiler output | 0-10 V (dc) 500 ? min load impedance / 4-20 mA 1 k? max load impedance |
| Warranty | Limited 3 Year Warranty |
Description
The Switching Relay 301P connects to one thermostat and operates a circulator and boiler to provide heating to a hydronic heating system. The 301P includes optional exercising to prevent circulator seizure when not in use, and optional post purge operation maximize energy savings.
- Compatible with all low voltage thermostats, pump exercising
- Post purge, LED for power and zone
- Top, bottom and back conduit knockouts, fuse protects pump
- Spare fuse included
- 20 VA transformer
- Thermal circuit breaker protects transformer
- Hinged cover
- CSA approved
- 3-year warranty
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