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Information
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Crompton 077-30*Meter Relay
Prices.
Crompton Meter Relays have a variety of set points, with adjustable time delay
and signal inputs. Select
styles and options below.
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Crompton Meter Relay,
Switchboard type
Example=
077-301A-0-5Amps-0-100%-120VAC-60Hz
First **= Specify Signal input
2nd **=
Specify Scale range
3rd **= Specify AC Power supply
4th **= Specify Frequency
Continue to add options by descriptions below
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Two relays, two set points
mid band de-energized, outside band
energized. Typical applications: High and Low alarm, High alarm plus shut
down.
One relay, one set point,
upscale energized, downscale de-energized Typical application: High alarm.
One relay, one set point,
upscale de-energized, downscale energized. Typical application: Low alarm.
One relay, two set points,
upscale de-energized, down scale energized. Typical applications: Liquid
level control, load shedding & power factor correction.
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Meter Relay Specifications
Switchboard Meter Relay Prices
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Input signal ratings
Frequency monitoring:
45/65Hz or 55/65Hz
100/125 V, 200/250V380/440V or 480V system
D.C. Voltage:
10mV to 500V - 10 ./V
D.C. Current:
10µA to 15A - 20mV drop 4/20mA
A.C. Voltage:
6V to 600V - 1000 ./V
A.C. Current:
100µA to 1A - 1V drop
5A CT operation - 0.5VA
Thermocouples:
Standard outputs
RTD Operation:
10Copper
100Platinum 0-200°C, 0-150°C or 20 - 140°C
Overloads:
1.2 x continuous, up to 200V or 100mA -
10 x for 10 seconds.
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Set-point Adjustments:
Single -
100% of scale Double - 98% of scale
Minimum span: 2% between set points
Color: Red
Output Relay: Mounted internally
Operation: SPDT contacts on each setpoint.
Optional latching on either or
both relays (077-301, 077-302
or 077-307 only)
Contact Rating: 5A, 250V, 1000W
non inductive
Ambient Temperature
Range: -10°C to +60°C (+14°F to
140°F)
Standard calibration:
20°C (68°F)
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