Description
Switching Relay provides DPST switching for hydronic zone controlled heating systems or SPST control of two separate loads. The R845A may be directly controlled by any 2-wire series 80 thermostat.

Description
Switching relay with internal transformer, provides Dpst switching for hot water zone control systems, or spst control of two separate loads.

Application
  • Provide intermediate switching of a line voltage device form a low voltage controller.
  • Switching Action DPST
  • One pole line voltage, the other line or low voltage Coil Ratings
  • Current 0.4A
  • Coil Ratings Voltage, 24 Vac
  • Transformer Primary Rating, 120 Vac, 50/60 Hz
  • Transformer Secondary Rating, 24 Vac
  • Temperature Range (F): 115 F maximum ambient for 60 Hz. 105 F Max. Ambient for 50 Hz.
  • Temperature Range (C) 46 C maximum ambient for 60 Hz. 41 C maximum ambient for 50 Hz.
  • Thermostat Compatibility: Low voltage (Class 2) 2-wire
  • Dimensions (in.) 5-1/4" high x 4-1/4" wide x 2-5/16" deep
  • Dimensions (mm) 133 mm high x 108 mm wide x 59 mm deep
  • Electrical Ratings - Primary Voltage 120V. 50/60 Hz
  • Electrical Connections (Control Circuit) 2-Wire
  • Approvals, Underwriters Laboratories Inc, Listed: File No. E4436, Guide No. XAPX
  • Approvals, Canadian Standards Association, Certified: File No. LR1620
  • Includes Integral transformer, enclosure
  • Tradeline Value: Tradeline
  • Electrical Ratings (Maximum Input) 5.0 W
  • Electrical Ratings (Primary Voltage) 120V, 50/60 Hz
  • Contacts Electrical Rating Main Contacts 120 Vac: 7.4A AFL. 44.4A ALR. 10A Resistive
  • Contacts Electrical Rating Secondary Contacts 120 Vac: 3A ALF. 18A ALR
  • Contacts Electrical Rating Main Contacts 240 Vac: 3.7A ALF. 22.2A ALR. 6.0A Resistive
  • Contacts Electrical Rating Secondary Contacts 240 Vac: 2A AFL. 12A ALR
  • Contacts Electrical Rating Secondary Contacts Pilot Duty Rat 50 VA @ 24V
  • Contacts Electrical Rating Contacts Max. Connected Load 2000 VA (120 Vac to 240 Vac)
  • Electrical Rating: Maximum Input 5.0W
Read more
Manuals (1)
Specs
Application:
Zoning
Zones:
2
Width:
4-1/4"
Height:
5-1/4"
Amperage:
7.4
Power Method:
120V
Voltage:
120v
Depth (Inches):
2-5/16"
Ambient Conditions:
105°-115°F Max
115 F max for 60 Hz
105 F Max for 50 Hz
Relays:
Dpst Line Voltage
Switch Action:
DPST one pole line voltage the other line or low voltage
Connection Type:
2-Wire
×
Heating Questions?
Speak with a real person who will go out of their way to help!
Call us 1-888-757-4774 Open Now:
Monday – Thursday
8am–5:45pm EST
Friday
9am–4:45pm EST
2 Videos

    6 Product Reviews

    Product Q&A