Brand Name
Brand Name
Part Type
Part Type
Coil Voltage
Size
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Argo Industries Z140 1-Zone Ice Cube Relay, 120 VAC, 7.2 amp, DPDT
  • 120 volt/60 Hz/40 VA transformer
  • 5 years warranty
  • Auto-reset electronic fuse protection
Sid Harvey Item #:R512-10: Replaces Part #:'s : 5C905,

Argo Industries R512-10

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R512-10

Item#:
R512-10
Manufacturer Item:
AR-822
Manufacturer:
ECR INTERNATIONAL /ARGO IND
Taco SR501-4 1-Zone Switching Relay, 120 VAC at 60 Hz, 12 amp
  • External indicator lights
  • Universal replacement
  • Snap-in PC board
  • Simplified wiring
  • Fuse protected outputs
  • 100% factory tested
  • Contractor friendly PC board layout
  • Universal thermostat compatibility
  • All circulator relay connections rated 1/3 HP (6 amp full load, 36 amp locked rotor) at 120 VAC
  • Thermostat connection supplies a 24 VAC class 2 output
Sid Harvey Item #:SR501: Replaces Part #:'s : 5C955,

Taco SR501

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SR501

Item#:
SR501
Manufacturer Item:
SR501-4
Manufacturer:
TACO INC.
Argo Industries Z209 2-Zone Ice Cube Relay with Priority, 7.2 amp Full Load, DPDT
  • 120 volt/60 Hz/75 VA transformer
  • 5 years warranty
  • Auto-reset electronic fuse protection
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Argo Industries R512-2

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R512-2

Item#:
R512-2
Manufacturer Item:
AR861-2
Manufacturer:
ECR INTERNATIONAL /ARGO IND
Taco SR502-4

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SR502-4

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Taco SR502-4

Item#:
SR502-4
Manufacturer Item:
SR502-4
Manufacturer:
TACO INC.
Arzel PAN-AB002 2-Zone Zone Control Panel
    ,

    PAN-AB002

Item#:
PAN-AB002
Manufacturer Item:
PAN-AB002
Manufacturer:
ARZEL SOLUTION-BASED COMFORT
Argo Industries Z210 3-Zone Ice Cube Relay with Priority, 7.2 amp Full Load, DPDT
  • 120 volt/60 Hz/75 VA transformer
  • 5 years warranty
  • Auto-reset electronic fuse protection
Sid Harvey Item #:R512-4: Replaces Part #:'s : 5C910,

Argo Industries R512-4

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R512-4

Item#:
R512-4
Manufacturer Item:
AR861-3
Manufacturer:
ECR INTERNATIONAL /ARGO IND
Taco zone valve controls work with two, three or four wire zone valves. Fully fuse protected, they also include two isolated end switches and a built-in priority switch. The contractor friendly PC board layout eliminates the problems caused by incorrect wiring and the"unfinished" look of conventional zone valve installations.
  • External indicator lights
  • Switchable priority
  • Simplified wiring
  • Compact design
  • Fuse protected
  • Two isolated end switches
  • Extra set of dry contacts
  • Contractor friendly
  • PC board layout
  • Universal thermostat compatibility
  • 2 Power port slots
,

ZVC403

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Taco ZVC403

Item#:
ZVC403
Manufacturer Item:
ZVC403-4
Manufacturer:
TACO INC.
Taco zone valve controls work with two, three or four wire zone valves. Fully fuse protected, they also include two isolated end switches and a built-in priority switch. The contractor friendly PC board layout eliminates the problems caused by incorrect wiring and the"unfinished" look of conventional zone valve installations.
  • External indicator lights
  • Switchable priority
  • Simplified wiring
  • Compact design
  • Fuse protected
  • Two isolated end switches
  • Extra set of dry contacts
  • Contractor friendly
  • PC board layout
  • Universal thermostat compatibility
  • 2 Power port slots
,

Taco ZVC404

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ZVC404

Item#:
ZVC404
Manufacturer Item:
ZVC404-4
Manufacturer:
TACO INC.
Taco SR503-4 switching relay is the best choice for all your zoning needs, with advanced powerport cards, external diagnostic lights, switchable priority and contractor friendly PC board layouts. Combined with the time proven reliability of the 00 family of circulators and thermostats, total system integrating is achieved. External indicator lights provide instant diagnostic feedback, making a snap of service calls or new installation start-ups.
  • External indicator lights
  • Switchable priority
  • Priority protection
  • Simplified wiring
  • Sealed relays
  • Fuse protected outputs
  • Compact design
  • 100% factory tested
  • Isolated end switch
  • Contractor friendly PC board layout
  • Universal thermostat compatibility
  • All circulator relay connections, including ZC/ZR, are rated 1/3 HP (6 amp full load, 36 amp locked rotor) at 120 VAC
  • End switch connections are rated 24 VAC, 1 amp
  • All thermostat connections supply a 24 VAC class 2 output
Sid Harvey Item #:SR503: Replaces Part #:'s : ERSR301,

Taco SR503

,

SR503

Item#:
SR503
Manufacturer Item:
SR503-4
Manufacturer:
TACO INC.
Taco switching relays combine clearly labeled PC board layouts with advanced features that allow for total system customization. Whether using basic priority switching or the advanced features of the -ExP controls, the job is made easy. External indicator lights provide instant diagnostic feedback, making a snap of service calls or new installation start-ups.
  • Front external indicator lights
  • Ideal for retrofitting
  • Primary circulator output
  • Simplified wiring
  • Sealed relays
  • Fuse protected
  • Compact design
  • 100% factory tested
  • Two isolated end switches
  • Contractor friendly PC board layout
  • Universal thermostat compatibility
  • All circulator relay connections, including ZC/ZR, are rated 1/3 HP (6 amp full load, 36 amp locked rotor) at 120 VAC
  • End switch connections are rated 24 VAC, 1 amp
  • All thermostat connections supply a 24 VAC class 2 output
  • Plug-in power controls
,

Taco SR503-EXP-4

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SR503-EXP-4

Item#:
SR503-EXP-4
Manufacturer Item:
SR503-EXP-4
Manufacturer:
TACO INC.
Argo Industries ARM-4P 4-Zone Switching Relay, 120 VAC, SPST
  • Electronic fuse on transformer secondary protects transformer from excessive loading
  • Data port terminal allows for an easy connection of the DPM-2 outdoor reset control
  • Three second time delay for boiler shut-off
  • For easy connection of 3 wire thermostats and field replacement of transformer
  • Clearly marked terminals with clamping plates and plenty of room for wiring
  • LED lights turn on when relay contacts are closed
  • Switchable priority improves versatility
  • With priority
  • 0.085 amp thermostat
  • 1/3 HP single phase motor rating
  • SPST contact
Sid Harvey Item #:R512-8: Replaces Part #:'s : 5C908,

Argo Industries R512-8

,

R512-8

Item#:
R512-8
Manufacturer Item:
ARM-4P
Manufacturer:
ECR INTERNATIONAL /ARGO IND
Taco zone valve controls work with two, three or four wire zone valves. Fully fuse protected, they also include two isolated end switches and a built-in priority switch. The contractor friendly PC board layout eliminates the problems caused by incorrect wiring and the"unfinished" look of conventional zone valve installations.
  • External indicator lights
  • Switchable priority
  • Simplified wiring Compact design
  • Fuse protected
  • Two isolated end switches
  • Extra set of dry contacts
  • Contractor friendly
  • PC board layout
  • Universal thermostat compatibility
  • 2 Power port slots
,

ZVC405

,

Taco ZVC405

Item#:
ZVC405
Manufacturer Item:
ZVC405-4
Manufacturer:
TACO INC.
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