Description
A-B 700-FSY2DU23 Safety relay
Product Dimensions:
The Allen-Bradley 700-FSY2DU23 is a High Performance Timing Relay, specifically designed for motor control applications requiring sequential starting.
| Parameter | Specification |
| Product Type | Timing Relay (High Performance) |
| Timing Function | Star-Delta (Wye-Delta) |
| Time Range | seconds to seconds |
| Control Voltage (Dual) | / |
| Contact Configuration | 2 Normally Open (N.O.) Contacts, 1 Side Common (often used for Star/Delta contactors) |
| Output Contact Rating | |
| Mounting Type | DIN Rail Mounting (often with an option for Panel Mounting) |
| Width | |
| Operating Temperature | to (Open) / to (Enclosed) |
| Standards | CCC, CE, MARINE |
✨ Product Advantages (Features)
The 700-FS series of high-performance timing relays offers several key advantages:
-
-
Star-Delta Specific Functionality: Specifically designed and pre-configured for Star-Delta (Wye-Delta) motor starting, ensuring proper timing sequence for a smooth transition from Star to Delta.
-
-
Dual Voltage Coil: The single unit can operate on a wide range of both AC and DC control voltages ( and ), simplifying inventory and selection.
-
Adjustable Time Range: The timing range is adjustable, allowing users to fine-tune the transition time ( to seconds) based on the specific motor and load requirements.
-
Space-Saving Design: The width allows for efficient use of panel space when DIN rail mounted.
-
High Performance/Durability: Classified as a “High Performance” relay, indicating robust construction, high mechanical life (up to cycles), and reliable operation.
-
Coil Surge Protection: Built-in protection helps prolong the life of the relay by guarding against transient voltage spikes.
⚠️ Important Notes (Precautions)
-
Product Status: This model, 700-FSY2DU23, is discontinued. If purchasing, ensure you are buying from a reputable vendor and are aware of the replacement model (e.g., 700-FSY7UU23 or equivalent) for future maintenance.
-
Installation Environment: Adhere to the specified operating temperature range ( to open). For applications in harsh or hazardous locations, ensure the unit meets the required certification and consider using an appropriate enclosure.
-
Wiring/Terminals: The terminals are typically finger-safe, but all installation and wiring must be performed by qualified personnel in accordance with local electrical codes and the manufacturer’s instructions.
-
Motor Sizing: The Star-Delta timing setting must be correctly matched to the motor’s acceleration time to prevent damage to the motor or load. Setting the time too short or too long can cause issues during the transition.
🏭 Product Applications
The primary application of the Allen-Bradley 700-FSY2DU23 (Star-Delta) Timing Relay is to control the starting sequence of three-phase AC induction motors.
The Star-Delta starting method is used to reduce the high inrush current that occurs when a large motor is started directly (Direct-On-Line or DOL).
Key applications include:
-
Motor Control Panels: Integrated into industrial control panels for starting medium-to-large motors.
-
Pumps and Fans: Used on large water pumps, ventilation fans, and HVAC systems where reduced current draw is needed during startup.
-
Compressors: Controlling the sequential start of large industrial air compressors.
-
Conveyors and Material Handling: Ensuring a controlled start-up for heavy-duty conveyors and material transport systems.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
Please make an inquiry for more models:
| AB | 1746-OB16 |
| AB | 1746-OB16E |
| AB | 1746-OB32 |
| AB | 1746-OB32E |
| AB | 1746-OB8 |
| AB | 1746-OBP16 |
| AB | 1746-OG16 |
| AB | 1746-OV16 |
| AB | 1746-OV32 |
| AB | 1746-OW16 |
| AB | 1746-OW16/C |
| AB | 1746-OW16/C/D |
| AB | 1746-OW4 |
| AB | 1746-OW8 |
| AB | 1746-OX8 |
| AB | 1746-P1 |
| AB | 1746-P2 |
| AB | 1746-P2/C |
| AB | 1746-P3 |
| AB | 1746-P4 |
| AB | 1746-P5 |
| AB | 1746-P6 |
| AB | 1746-P7 |
| AB | 1746SC-NI8U |
| AB | 1746SC-OAP8I |
| AB | 1747-ACN15 |
| AB | 1747-ACNR15 |
| AB | 1747-ACNR15/A |
| AB | 1747-ASB |
| AB | 1747-ASB/A |
| AB | 1747-ASB1747-L511 |
| AB | 1747-BA |
| AB | 1747-BSN |
| AB | 1747-BSN1771-IFE |
| AB | 1747-CP3/A |





