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The SWARTZ® Type 32 Reverse Current Relay from
SMC is designed for the protection of rectifiers in transit or industrial applications.
The relay protects the rectifier from back-feeds in the power system, should there be an
internal fault. The solid state design and rugged construction ensure dependable, low
maintenance operation under adverse conditions. |
 | Draw-out construction |
| LED Meter - Accurate, easy to read |
| Instant Reverse Current Channel - 0 to 20 mV |
| Use with any Shunt |
| Uni-Directional |
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| Internal Power Supply operates on and auto-compensates for a wide range of DC inputs |
| Calibration Controls Allow Preset Threshold and Test |
| Field Adjustable |
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The Type 32 relay detects reverse current flow onto the rectifier. It is recommended where
there is no cathode breaker or when supplementary protection is required. The front panel
controls are calibrated in millivolts so the relay is compatible with any type of shunt.
The built-in calibration components allow accurate field calibration of the current
setting. The relay incorporates a signal-out jack that gives voltage output equal to the
line current.
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| Input Power: Operates on 24-125 VDC |
| Supply Current: 40 mA at 125 VDC, 200 mA
at 24 VDC |
| Ambient Temperature:-20°C to +55°C |
| Design Test:SWC ANSI/IEEE C37.90 |
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| Isolation Dielectric: 5400 V, 60 Hz, 1min.
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| SCR Output: 100 mA to 6A (1 sec.) 200V |
| Annunciation: Reed Relay 100 VA, 2A, 500
VDC |
| Threshold Setting Error: ±0.5 mV |
| Isolation Error: ±1.0 mV |
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| Interface Diagram
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Relay Case Dimensions
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