CSA and UL
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A2722
The Model 2722 Current Unbalance Detector is designed to monitor 3-phase AC current (or compare three single-phase AC currents). A solid-state electronic sensing circuit drives an internal DPDT relay which energizes during normal, balanced conditions. An unbalanced condition will cause the relay to drop out. The Model 2722 accepts current inputs up to 5 amps and will consider zero amps as balanced (relay stays energized), making the device suitable for use with 3-phase heaters. The Model 2722 has adjustments for percent of unbalance and time delay before tripping. It will automatically reset upon restoration of correct current balance, or a normally-closed momentary switch can be connected for a manual reset. External CT’s can be used to extend the operating current range. -
281-24DC
The Model 280 and 281 General Purpose Plug-In Relays are heavy duty, high quality relays available at a competitive price. UL Recognized and CSA approved, the Model 280 and 281 have a long life of over 10 million mechanical operations. Model 280 and 281 relays are available in a variety of AC and DC voltages. Mounting configurations are standard 8- and 11-pin. -
281-24AC
The Model 280 and 281 General Purpose Plug-In Relays are heavy duty, high quality relays available at a competitive price. UL Recognized and CSA approved, the Model 280 and 281 have a long life of over 10 million mechanical operations. Model 280 and 281 relays are available in a variety of AC and DC voltages. Mounting configurations are standard 8- and 11-pin. -
281-240AC
The Model 280 and 281 General Purpose Plug-In Relays are heavy duty, high quality relays available at a competitive price. UL Recognized and CSA approved, the Model 280 and 281 have a long life of over 10 million mechanical operations. Model 280 and 281 relays are available in a variety of AC and DC voltages. Mounting configurations are standard 8- and 11-pin. -
281-12DC
The Model 280 and 281 General Purpose Plug-In Relays are heavy duty, high quality relays available at a competitive price. UL Recognized and CSA approved, the Model 280 and 281 have a long life of over 10 million mechanical operations. Model 280 and 281 relays are available in a variety of AC and DC voltages. Mounting configurations are standard 8- and 11-pin. -
281-120AC
The Model 280 and 281 General Purpose Plug-In Relays are heavy duty, high quality relays available at a competitive price. UL Recognized and CSA approved, the Model 280 and 281 have a long life of over 10 million mechanical operations. Model 280 and 281 relays are available in a variety of AC and DC voltages. Mounting configurations are standard 8- and 11-pin. -
281-110DC
The Model 280 and 281 General Purpose Plug-In Relays are heavy duty, high quality relays available at a competitive price. UL Recognized and CSA approved, the Model 280 and 281 have a long life of over 10 million mechanical operations. Model 280 and 281 relays are available in a variety of AC and DC voltages. Mounting configurations are standard 8- and 11-pin. -
280-24DC
The Model 280 and 281 General Purpose Plug-In Relays are heavy duty, high quality relays available at a competitive price. UL Recognized and CSA approved, the Model 280 and 281 have a long life of over 10 million mechanical operations. Model 280 and 281 relays are available in a variety of AC and DC voltages. Mounting configurations are standard 8- and 11-pin. -
280-24AC
The Model 280 and 281 General Purpose Plug-In Relays are heavy duty, high quality relays available at a competitive price. UL Recognized and CSA approved, the Model 280 and 281 have a long life of over 10 million mechanical operations. Model 280 and 281 relays are available in a variety of AC and DC voltages. Mounting configurations are standard 8- and 11-pin. -
280-240AC
The Model 280 and 281 General Purpose Plug-In Relays are heavy duty, high quality relays available at a competitive price. UL Recognized and CSA approved, the Model 280 and 281 have a long life of over 10 million mechanical operations. Model 280 and 281 relays are available in a variety of AC and DC voltages. Mounting configurations are standard 8- and 11-pin. -
280-12DC
The Model 280 and 281 General Purpose Plug-In Relays are heavy duty, high quality relays available at a competitive price. UL Recognized and CSA approved, the Model 280 and 281 have a long life of over 10 million mechanical operations. Model 280 and 281 relays are available in a variety of AC and DC voltages. Mounting configurations are standard 8- and 11-pin. -
280-120AC
The Model 280 and 281 General Purpose Plug-In Relays are heavy duty, high quality relays available at a competitive price. UL Recognized and CSA approved, the Model 280 and 281 have a long life of over 10 million mechanical operations. Model 280 and 281 relays are available in a variety of AC and DC voltages. Mounting configurations are standard 8- and 11-pin. -
280-110DC
The Model 280 and 281 General Purpose Plug-In Relays are heavy duty, high quality relays available at a competitive price. UL Recognized and CSA approved, the Model 280 and 281 have a long life of over 10 million mechanical operations. Model 280 and 281 relays are available in a variety of AC and DC voltages. Mounting configurations are standard 8- and 11-pin. -
EX2652
The Model 2652 3-Phase Monitor is designed to protect motors, pumps, HVAC equipment, air compressors, etc. , by sensing phase loss, low voltage or phase reversal.With correct power applied, the DPDT output contacts transfer, and drop out when a fault condition or loss of power occurs. An adjustable trip delay prevents nuisance tripping. The restart delay timer prevents short cycling, which is primarily used with HVAC and compressor motors.
The DPDT output contacts allow the Model 2652 to be used in control circuits and alarm circuits. The automatic reset version can be converted to a manual reset, by adding a normally closed switch. The different voltage versions of the Model 2652 can be adjusted over a wide operating range. This unit is housed in an ABS plastic surface-mount case to reduce space requirements.
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D2652
The Model 2652 3-Phase Monitor is designed to protect motors, pumps, HVAC equipment, air compressors, etc. , by sensing phase loss, low voltage or phase reversal.With correct power applied, the DPDT output contacts transfer, and drop out when a fault condition or loss of power occurs. An adjustable trip delay prevents nuisance tripping. The restart delay timer prevents short cycling, which is primarily used with HVAC and compressor motors.
The DPDT output contacts allow the Model 2652 to be used in control circuits and alarm circuits. The automatic reset version can be converted to a manual reset, by adding a normally closed switch. The different voltage versions of the Model 2652 can be adjusted over a wide operating range. This unit is housed in an ABS plastic surface-mount case to reduce space requirements.
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C2652
The Model 2652 3-Phase Monitor is designed to protect motors, pumps, HVAC equipment, air compressors, etc. , by sensing phase loss, low voltage or phase reversal.With correct power applied, the DPDT output contacts transfer, and drop out when a fault condition or loss of power occurs. An adjustable trip delay prevents nuisance tripping. The restart delay timer prevents short cycling, which is primarily used with HVAC and compressor motors.
The DPDT output contacts allow the Model 2652 to be used in control circuits and alarm circuits. The automatic reset version can be converted to a manual reset, by adding a normally closed switch. The different voltage versions of the Model 2652 can be adjusted over a wide operating range. This unit is housed in an ABS plastic surface-mount case to reduce space requirements.