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Kendrion N.V.
Vesta Building - 5th floor
Herikerbergweg 213
1101 CN Amsterdam
The Netherlands
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Our Standard Collection

Overexcitation rectifiers with fast turn-off through current detection

The rectifier with built-in current sensor for fast turn-off is designed for the operation of electromagnetic devices.
It ensures fast turn-on and turn-off. The rectifier with bridge circuit comprises a thyristor and timer. During overexcitation, the rectifier delivers bridge rectified output voltage before changing over to half-wave rectification.
On the DC side, the output voltage is enabled by the built-in current sensor which measures the AC current of the connected motor. If the motor is stopped, the rectifier turns off on the DC side as soon as the current falls below the turn-off threshold.
The turn-off voltage generated by the inductive load is limited. The rectifier is suitable for connection in parallel with AC motors. The current sensor must be wired into the motor current path in such a way that the current flow created when the motor operates in generator mode will not pass through the sensor. This is crucial to avoid delayed or impaired DC side switching.

 

Features at a glance

  • Energy savings up to 75%
  • Intelligent rectifier with fast shutdown
  • Overexcitation function
  • For brakes with higher performance from size 14
  • Simple installation due to circuitry in motor terminal box

Versions

  • Hybrid rectifiers with fast turn-off through current detection

  • Hybrid rectifiers with fast turn-off through voltage detection

  • Overexcitation rectifiers with fast turn-off through voltage detection

  • Overexcitation rectifiers with fast turn-off through current detection

  • Overexcitation rectifiers with fast turn-off via auxiliary contact

  • Hybrid high-performance rectifierswith fast turn-off via auxiliary contact

Technical Details

Type Hybrid rectifiers Hybrid rectifiers Overexcitation rectifiers Overexcitation rectifiers Overexcitation rectifiers Hybrid high-performance rectifiers
Turn-off with fast turn-off trough current detection with fast turn-off trough voltage detection with fast turn-off trough voltage detection with fast turn-off trough current detection with fast turn-off via auxiliary contact with fast turn-off via auxiliary contact
Rectification Bridge/halfe-wave Bridge/halfe-wave Time-controlled bridge/one-way switching Time-controlled bridge/one-way switching Time-controlled bridge/one-way switching bridge/half-wave
Rated input voltage until 460 VAC until 500 VAC 220 - 500 VAC 220 - 460 VAC until 415 VAC One-way 0 - 690 VAC / Bridge 0 - 460 VAC
Output voltage Uin * 0.89 / Uin * 0.445 Uin * 0.89 / Uin * 0.445 Uin * 0.89 / Uin * 0.445 Uin * 0.89 / Uin * 0.445 Uin * 0.89 / Uin * 0.445 Uin * 0.445 / Uin * 0.89
Output current Bridge 1.2A / One-way 1.2A Bridge 1.2A / One-way 1.2A ÜE 2.4A /Stop 1.2 A ÜE 2.4A / Stop 12A ÜE 1.4A / Stop 0.7A One-way 3.5A / Bridge 4.0A
Fast turn-off yes (via internal current detection) yes (via internal voltage detection) yes (via internal voltage detection) yes (via internal current detection) yes (via internal current detection) yes (via auxiliary contact)
Connections strands strands strands strands Clamp Clamp
Overexcitation time - - 0.3s 0.3s 0.3s 0.25s - 15s
Datasheets
Datasheet | Standard Collection | 32 67124A00
pdf - 174 KB
Datasheets
Datasheet | Standard Collection | 32 1735xExx
pdf - 272 KB
Datasheets
Datasheet | Standard Collection | 32 17350ExxUL
pdf - 326 KB
Datasheets
Datasheet | Standard Collection | 32 0735xA00
pdf - 318 KB
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Kendrion Industrial Brakes
Sales Team Kendrion Villingen