700-FSK3CU23-EX | High-Performance 0.5-10s Timer for DIN Rail
Manufacturer: Siemens
-
Part Number: 700-FSK3CU23-EX
Condition：New with Original Package
Product Type: Pulse Controlled One-Shot Relay
-
Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Allen-Bradley 700-FSK3CU23-EX | High-Performance One-Shot Timing Relay
The 700-FSK3CU23-EX is a precision-engineered timing relay from the Allen-Bradley 700-FS series, designed for critical industrial automation tasks. This pulse-controlled "One-Shot" relay provides essential time-delay functionality for complex control circuits, ensuring that machinery operates in the correct sequence. While Allen-Bradley manufactured this specific series, it is frequently integrated into Siemens-heavy environments for specialized protective and sequencing functions. Furthermore, the "EX" designation confirms its certification for use in hazardous locations, making it a vital component for oil, gas, and chemical processing facilities.
Because this model was discontinued in early 2022, it has become a highly sought-after spare part for maintaining existing control panels. It features a rugged DIN-rail mountable design that allows for quick installation into standard electrical cabinets without extensive modifications. Moreover, the module supports an incredibly wide input voltage range, which simplifies inventory management for facilities with diverse power requirements. Consequently, choosing the 700-FSK3CU23-EX ensures that your legacy systems continue to run safely without the immediate need for a costly system-wide redesign.
Technical Specifications
| Parameter | Specification Details |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Model Number | 700-FSK3CU23-EX |
| Relay Series | 700-FS High-Performance |
| Timing Function | One-Shot / Watchdog (Pulse Controlled) |
| Timing Range | Adjustable 0.5 to 10 Seconds |
| Contact Output | 1 Changeover Contact (SPDT) |
| Input Voltage (AC) | 24–240 V AC (50/60 Hz) |
| Input Voltage (DC) | 24–48 V DC |
| Mounting Type | 35mm DIN Rail |
| Vibration Resistance | 10–500 Hz, 4 g per IEC 60068-2-6 |
| Hazardous Certification | EX Rated for Hazardous Locations |
| Status | Discontinued (Available as Surplus/New-Old-Stock) |
Frequently Asked Questions (FAQ)
What is the functional difference between "One-Shot" and "On-Delay"?
A one-shot relay triggers for a set duration after receiving a pulse, whereas an on-delay relay waits before switching on.
Can I use the 700-FSK3CU23-EX in a 230V AC European power system?
Yes, the module is rated for up to 240V AC and supports both 50Hz and 60Hz frequency standards.
Which model should I use if this relay is completely unavailable?
The official functional replacement recommended by the manufacturer is the 700-FSK6UU23-EX, though mounting dimensions may vary slightly.
Is this relay suitable for high-vibration environments like crushers?
Absolutely, the unit is tested to IEC standards for 4g vibration resistance, ensuring it stays functional under heavy mechanical stress.