Tekmar Switching Relay 304P – Four Zone Expandable
$472.00
The Switching Relay 304P connects to up to 4 thermostats and operates up to 4 circulator and boiler to provide heating to a hydronic heating system. The 304P includes optional exercising to prevent circulator seizure when not in use, and optional post purge operation maximize energy savings.
The Switching Relay 304P connects to up to 4 thermostats and operates up to 4 circulator and boiler to provide heating to a hydronic heating system. The 304P includes optional exercising to prevent circulator seizure when not in use, and optional post purge operation maximize energy savings.
Technical Information
Features
- 20 VA transformer
- 3-year warranty
- CSA approved
- Compatible with all low voltage thermostats
- Fuse protects pump
- Hinged cover
- LED for power and zone
- Post purge
- Pump exercising
- Spare fuse included
- Thermal circuit breaker protects transformer
- Top, bottom and back conduit knockouts
Specifications
Control | Microprocessor control. This is not a safety (limit) control. |
Packaged weight | 2.5 lb. (1125 g) |
Dimensions | 8-3/16″ H x 10-12/18″ W x 2-3/8″ D (169 x 123 x 62 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, 5 A |
Transformer | 24 V (ac), 20 VA |
Control load | 7.5 VA |
Fuse | T5A 250 V slow blow, spare fuse included |
Pump relay | 230 V (ac), 5 A, 1/3 hp |
Boiler XX end switch | 24 V (ac), 5 A |
Warranty | Limited 3 Year Warranty |
Weight | 1.125 kg |
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