• Molded terminal numbers and circuit diagram on top of relay provide easy identification for wiring and checking system operation
• Untaped coil assures cooler operation
• Laminated magnet construction for higher efficiency
• Base designed for easy replacement of competitive relays
• Contact rating: 3 amp at 480 VAC; 6 amp at 208/240/277 VAC; 12 amp at 120 VAC full load, 18 amp at 480 VAC; 35 amp at 208/240/277 VAC, 60 amp at 120 VAC locked rotor, 10 amp at 480 VAC; 20.8 amp at 120/208/240/277 VAC resistive

Honeywell R540-30

• Contact rating: 72 amp at 120 volt, 36 amp at 277 volt, 18 amp at 480 volt locked rotor inrush; 15 amp at 120/277 volt, 10 amp at 480 volt resistive; 12 amp at 120 volt, 6 amp at 277 volt, 3 amp at 480 volt inductive full load

Jard R540-80

• Provide intermediate switching of a line voltage device from a low voltage controller
• Integral transformer provides low voltage power for control circuit
• Includes enclosure
• Contact rating: 10.2 amp at 120 VAC, 5.1 amp at 240 VAC full load; 61.2 amp at 120 VAC, 30.6 amp at 240 VAC locked rotor; 10 amp at 120 VAC, 6 amp at 240 VAC resistive

Honeywell R510-15

• Provide intermediate switching of a line voltage device from a low voltage controller
• Integral transformer provides low voltage power for control circuit
• Includes enclosure
• Contact rating: 7.4 amp at 120 VAC, 3.7 amp at 240 VAC full load; 44.4 amp at 120 VAC, 22.2 amp at 240 VAC locked rotor; 10 amp at 120 VAC, 6 amp at 240 VAC resistive; 2000 VA (120 - 240 VAC); secondary DC - 1 amp at 12 VDC, secondary millivolt - 300 milli-amp at 750 mV

Honeywell R520-26

Packard R540-75

• 120 volt/60 Hz/40 VA transformer
• 5 years warranty
• Auto-reset electronic fuse protection

• SPNO/SPNC 24 VAC,
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  Motors & Armatures R540-71

Packard R540-50

• Electronic fuse - auto reset
• Robust transformer - enough to handle up to 15 zones
• Double-sided printed circuit board construction - 100% factory tested for reliability
• Clearly marked terminals with clamping plates
• Separate xx (isolated switch) and ZC/ZR Relays protect boiler aquastat
• Priority safety timer - Ensures other zones get heat every 30 min and prevents freeze-ups
• 5 sec time delay for boiler shut-off
• Relay diagnostic light - easily seen through window on cover
• Premium plug-in replaceable relays
• 24 VAC transformer terminals
• Plug-in, add-on zone modules (AD-1 or AD-4)
• Switchable priority
• 1/3 HP high relay load rating

• Non-positional
• Wide range of selectivity
• QC-6 kit included with each relay to convert screw-on to push-on
• Instructions and wiring diagram included in each relay
• 35 amp contact
• Universal break-off bracket on each relay, simply snap-off parts not needed

Motors & Armatures R560-50