361A, 461A: Limit Alarm; DC Voltage/Current Input, AC or DC-Powered
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Product short description:
- 0 to 20mA DC, 0 to 100V DC, AC current (with optional sensor) input
- Single or dual mechanical relays output
- 10-36V DC or 115/230V AC power
- 100% adjustable set-point, hi/lo fail-safe operation, jumper-selectable voltage/current input
361A, 461A: Limit Alarm; DC Voltage/Current Input, AC or DC-Powered Description
These alarms accept DC voltage/current input signals and provide relay output if the input exceeds user-defined set-point limits.
Numerous options and features make these alarms easy to use and well-suited for a wide range of limit monitoring and on/off controller applications. Three-way isolation eliminates ground loops to simplify installation.
And for easier use in the field, these alarms withstand extreme temperatures and have accessible set-point voltage test points. Other features include alarm/power status LEDs and independent set-point and dead band adjustment pots.
Models:
361A: DC-powered
461A: AC-powered
Input Ranges:
0 to 20mA DC
0 to 1V, 0 to 5V, 0 to 10V, 0 to 50V, 0 to 100V DC
0 to 20A AC (with external AC current sensor)
Output:
Electromechanical SPDT dry contact sealed relays; CSA rated for 5A
Power Requirements:
361A: 10 to 36V DC (0.9W max.)
461A: 115V AC (0.0320A) or 230V AC (0.016A)
361A, 461A: Limit Alarm; DC Voltage/Current Input, AC or DC-Powered Features & Benefits
- 100% adjustable set-point via 15-turn pot handles more applications and provides better resolution
- 100% adjustable dead band via 15-turn pot prevents false trips and eliminates alarm chatter
- Set-point test points are accessible on front of unit for quick verification with digital voltmeter probe
- Dual relays offer the flexibility of high/low, high/high, or low/low alarm set-point operation
- Three-way isolation eliminates ground loops
- Jumper-selectable DC voltage or current input reduces inventory stock
- Jumper-selectable fail-safe operation enables alarm actuation on power loss in critical applications
- Wide power supply range (361A) handles more applications to reduce inventory stock
- DC power units (361A only) carry lower voltages and do not require expensive conduit for safer and easier installation
- Diode-coupled power (361A only) supports the use of redundant power supplies for critical applications
- Excellent accuracy, stability and no loose internal wiring ensure reliable alarm trips
- Operating temperature range: -13°F to 167°F (-25°C to 75°C)
- DIN rail G or T mount
- No certification/approval required
Specs & Catalogs
Additional information
| Weight | 16 oz |
|---|---|
| Dimensions | 3 × 1 × 3.2 in |
| Part Number | 361A-V0-DMRN-DIN-NCR: 10 to 36V DC-power; 0 to 10V DC, 100K ohm input impedance; dual alarm, two SPDT relays, 361A-V1-SMRN-DIN-NCR: 10 to 36V DC power; 0 to 1V DC input; single alarm, one SPDT dry-contact sealed relay, 461A-V1-DMRN-1-DIN-NCR: 115V AC power; 0 to 1V DC input; dual alarm, two SPDT relays; 115V AC ± 10% power |
| Product Series | FlatPack Series |
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Description
361A, 461A: Limit Alarm; DC Voltage/Current Input, AC or DC-Powered Description
These alarms accept DC voltage/current input signals and provide relay output if the input exceeds user-defined set-point limits.
Numerous options and features make these alarms easy to use and well-suited for a wide range of limit monitoring and on/off controller applications. Three-way isolation eliminates ground loops to simplify installation.
And for easier use in the field, these alarms withstand extreme temperatures and have accessible set-point voltage test points. Other features include alarm/power status LEDs and independent set-point and dead band adjustment pots.
Models:
361A: DC-powered
461A: AC-poweredInput Ranges:
0 to 20mA DC
0 to 1V, 0 to 5V, 0 to 10V, 0 to 50V, 0 to 100V DC
0 to 20A AC (with external AC current sensor)Output:
Electromechanical SPDT dry contact sealed relays; CSA rated for 5A
Power Requirements:
361A: 10 to 36V DC (0.9W max.)
461A: 115V AC (0.0320A) or 230V AC (0.016A)361A, 461A: Limit Alarm; DC Voltage/Current Input, AC or DC-Powered Features & Benefits
- 100% adjustable set-point via 15-turn pot handles more applications and provides better resolution
- 100% adjustable dead band via 15-turn pot prevents false trips and eliminates alarm chatter
- Set-point test points are accessible on front of unit for quick verification with digital voltmeter probe
- Dual relays offer the flexibility of high/low, high/high, or low/low alarm set-point operation
- Three-way isolation eliminates ground loops
- Jumper-selectable DC voltage or current input reduces inventory stock
- Jumper-selectable fail-safe operation enables alarm actuation on power loss in critical applications
- Wide power supply range (361A) handles more applications to reduce inventory stock
- DC power units (361A only) carry lower voltages and do not require expensive conduit for safer and easier installation
- Diode-coupled power (361A only) supports the use of redundant power supplies for critical applications
- Excellent accuracy, stability and no loose internal wiring ensure reliable alarm trips
- Operating temperature range: -13°F to 167°F (-25°C to 75°C)
- DIN rail G or T mount
- No certification/approval required
-
Tech Papers
How to Use a Toroidal AC Current Sensor - 8401044Using Acromag’s Toroidal AC Current Sensor Model 5020-350 Transmitters with DC current input can be used in conjunction with an external toroidal AC current sensor in order to precondition an AC current input signal. This sensor is a highly accurate toroidal instrument transformer; which converts an AC current signal to a safe, low-level, DC milliampere... -
Specs & Data Sheets
Specs & Catalogs
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Additional information
Additional information
Weight 16 oz Dimensions 3 × 1 × 3.2 in Part Number 361A-V0-DMRN-DIN-NCR: 10 to 36V DC-power; 0 to 10V DC, 100K ohm input impedance; dual alarm, two SPDT relays, 361A-V1-SMRN-DIN-NCR: 10 to 36V DC power; 0 to 1V DC input; single alarm, one SPDT dry-contact sealed relay, 461A-V1-DMRN-1-DIN-NCR: 115V AC power; 0 to 1V DC input; dual alarm, two SPDT relays; 115V AC ± 10% power
Product Series FlatPack Series
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