Overview
The Hoerbiger KY3235 DZRK magnetic reed switch is engineered for precision position detection in pneumatic, hydraulic, and automated machinery applications. This dual-voltage reed switch operates across a wide input range from 10 to 230V AC or DC, making it adaptable to most industrial control systems. The DZRK designation indicates the electrical contact configuration and housing type suitable for harsh factory and outdoor environments.
Key Features
- Wide voltage range: 10–230V AC/DC—operates on single or multi-phase supply
- Reed contact switching—no moving mechanical parts, inherently reliable
- Fast switching response: 1.8 millisecond actuation time
- High switching frequency: up to 2,200 cycles per minute
- Cable assembly with connector—easy integration and field replacement
- Macrolon and glass-fiber reinforced housing for chemical and UV resistance
- Extended operating range: -25°C to +75°C
Technical Specifications
- Operating Voltage: 10–230V AC/DC
- Current Rating: 0.5A (nominal)
- Power Consumption: 20W/30VA (per spec sheet)
- Contact Type: REED switching (magnetically activated)
- Switching Frequency: Up to 2,200/min
- Response Time: 1.8 ms
- Cable Length: 2.5 m standard (may vary by variant)
- Connector Type: Cable-mounted connector
- Housing Material: Macrolon, glass-fiber reinforced
- Operating Temperature: -25°C to +75°C
- Weight: 0.2 lbs (90 g)
Typical Applications
The Hoerbiger KY3235 DZRK excels in:
- Pneumatic Cylinders: Position feedback for rod-mounted or manifold-integrated sensing
- Hydraulic Systems: Pressure and position monitoring on industrial presses and loaders
- Automated Assembly Lines: Detection of part presence and proper alignment
- Production Machinery: Safety interlocks and emergency stop circuits
- PLC & HMI Integration: Direct input to Allen-Bradley, Siemens, Mitsubishi, and Omron controllers
- Valve Actuation: Solenoid and directional control valve feedback
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix and ControlLogix PLC inputs (24V or DC supply bridge)
- Siemens S7-1200, S7-1500 controllers via appropriate voltage conditioning
- Mitsubishi FX and Q-series PLC analog/digital inputs
- Omron CP1H and NX-series controllers
- Schneider Electric Modicon M221 and M241 controllers
- Generic 24V DC and 110/220V AC solenoid circuits
- Industrial safety relays and emergency stop chains
Replaces / Drop-In Replacement For
The Hoerbiger KY3235 DZRK directly replaces:
- Hoerbiger KY3235 (earlier variants without designation code)
- Hoerbiger KL-series reed switches in similar voltage/current envelope
- Proximity and reed switches from Festo, Bosch Rexroth, Parker, and Hydac rated at 0.5A / 20W in the same mounting footprint
Note: Always verify cable length, connector type, and mounting orientation with your system integrator before ordering a replacement.
Works With
- Pneumatic valve blocks and manifolds (Festo, Bosch, Parker, SMC)
- Hydraulic cylinders and valve spool feedback
- 24V DC / 110V AC relay logic circuits
- Analog and discrete PLC I/O modules
- PROFIBUS, PROFINET, EtherNet/IP gateways (via smart relays or I/O coupler modules)
- Standard industrial sensor connectors (M8/M12 if adapter supplied)
