Dwyer Instruments SERIES 783, SERIES 784 Catalog Page
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SERIES 783 & 784
ICE CUBE RELAYS
3PDT or 4PDT Operation
PROCESS CONTROL
The Series 783 & 784 Ice Cube Relays are full-featured relays that can be used to
handle loads up to 15 amps for AC or DC circuits. It features a ag status indicator
and a LED status lamp to let the user know when the relay is activated. In order to
differentiate between AC and DC actuated models, the push-to-test button is color
coded and a removable lock-down lever holds the test button in place.
FEATURES/BENEFITS
• Clear plastic housing to easily view the contacts
• Flag and LED status indicators for visual conrmation of relay state
• Socket mounted for quick installation/replacement
APPLICATIONS
• Refrigeration compressor systems
• HVAC motor controls
• Water/wastewater pump control
MODEL CHART
Model Operation Input Voltage
783XCXM4L-24A
783XCXM4L-120A
783XCXM4L-24D
784XDXM4L-24A
784XDXM4L-120A
784XDXM4L-24D
AC
AC
DC
AC
AC
DC
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24 VAC 50/60 Hz
120 VAC 50/60 Hz
24 VDC
24 VAC 50/60 Hz
120 VAC 50/60 Hz
24 VDC
783
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Pictures shown with socket accessory (sold separately)
SPECIFICATIONS
Operating and Load Voltage Range: 24-240 VAC; 24 VDC.
Electrical Connection: Silver alloy plug-in contacts.
Switching Operation: 3PDT or 4PDT.
Electrical Rating: 15 A @ 120 VAC 50/60 Hz; 12 A @ 277 VAC 50/60 Hz or 28
VDC.
Temperature Limits: Storage: -40 to 185°F (-40 to 85°C); Operation: -40 to 131°F
(-40 to 55°C).
Power Consumption: 783: 1.5 VA; 1.4 W; 784: 1.5 VA; 1.5 W.
Cycle Life: 100,000 cycles (electrical); 10,000,000 cycles (mechanical).
Housing: Plastic polycarbonate.
Weight: 783: 2.1 oz (60 g); 784: 2.8 oz (80 g).
Agency Approvals: CE, CSA, cULus, cURus.
Coil
Resistance
103 Ω
2770 Ω
400 Ω
84.5 Ω
2220 Ω
388 Ω
ACCESSORIES
Model Description
70-783D11-1A
70-784D14-1
70-ASMM-24
70-ASMM-120
70-ASMD-250
16-750/788CBJ-1
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784
Socket for 783 series relay
Socket for 784 series relay
Protection modules, MOV suppressor, 24 VAC/VDC
Protection modules, MOV suppressor, 120 VAC/VDC
Protection modules, protection diode, 6 to 250 VDC
Coil bus jumpers
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