Phase Sequence Relay 230V-400V, DIN Mount

The FSTKII1S Phase Sequence Relay monitors three-phase supplies for correct rotation and loss of a phase, protecting motors and pumps from running in reverse or on an incomplete supply. It is suitable for electricians, panel builders and pump/borehole installers, and mounts in a compact 1-module DIN rail enclosure.

• Application: Phase rotation and phase-loss protection for 3-phase motors
• Voltage: 230V-400V, universal supply
• Output: SPDT output contact, 8A/250VAC
• Mounting: 1-module DIN rail (EN50.022), 98 x 17.5 x 64mm

Key Features

• Detects incorrect phase rotation and loss of a phase before it can damage a motor
• Energise-after-delay function avoids nuisance tripping on momentary supply issues
• Universal 230V-400V supply simplifies stocking across single installations
• Compact 1-module width saves panel space in crowded distribution boards
• RoHS compliant, self-extinguishing V0 housing material

Typical Applications

• Three-phase motor rotation protection
• Pump and borehole motor protection
• Panel builder phase monitoring circuits
• General industrial 3-phase supply monitoring

Technical Specifications

What's Included

• 1 x FSTKII1S Phase Sequence Relay

Please note: DIN rail enclosure and wiring are not included unless specifically listed above.

Installation & Compatibility Notes

• Confirm 3-phase supply voltage falls within 230V-400V before ordering.
• Confirm the motor/contactor circuit can accept the SPDT 8A/250VAC output rating.
• Installation should be carried out by a suitably qualified electrician where required.

Warranty & Support

This product is supplied with the applicable manufacturer or supplier warranty, subject to correct installation, correct application, and warranty terms.

Zisabo supplies quality plumbing, pump, filtration and electrical products with practical support to help customers choose the correct item for their application. If you are unsure whether this product is suitable, contact us before ordering and our team will assist where possible.

Need help choosing? If you are unsure whether this product is suitable for your system, contact Zisabo with your application details, voltage, current rating, pin/base configuration or installation environment, and we will assist where possible.