IDEC Relays SU4S-21L Relay Base
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IDEC Relays SU4S-21L Relay Base

IDEC Relays SU4S-21L Relay Base

The IDEC SU4S-21L Relay Base is a high-performance 4-pole socket specifically engineered for DIN rail mount systems. This unit is the direct replacement for the obsolete SU4S-11L and is fully compatible with RU4S and RU42S series relays. Unlike standard screw-terminal bases, the SU4S-21L utilizes push-in terminals, which can reduce field wiring time by up to 55%. This tool-less termination ensures vibration radiation resistance and eliminates the need for periodic torque re-tightening in high-duty industrial environments. The finger-safe design meets IEC 60529 IP20 protection standards, ensuring safety during installation and maintenance. Rated for 10A at 250V AC/DC, this 14-pin base features a separated terminal arrangement with coil terminals at the bottom and contact terminals at the top for clean wire routing. For complex HVACR control panels, this socket supports jumper accessories to simplify common wiring between multiple units.

Key Benefits for Technicians
  • Efficient Wiring: Push-in terminal design eliminates the need for terminal tightening, significantly lowering labor hours during panel assembly.
  • Universal Compatibility: Designed specifically for use with the IDEC RU relay series, ensuring a precise fit and reliable mechanical connection.
  • Compact Footprint: Snap-on 35mm DIN rail mounting allows for high-density installation in crowded control enclosures.
  • Enhanced Safety: Built with flame-retardant UL94 V-0 material and local finger-safe protection for a secure electrical interface.
Common Questions

Is the SU4S-21L compatible with older RU series relays?
Yes, this 14-pin socket is the current standard for RU4S, RU42S, and RN4S mechanical relays, often used as a direct upgrade to older screw-terminal models.

Do I need specialized tools for the push-in terminals?
No, these spring-loaded terminals are designed for tool-less insertion of solid or cord-end ferrule wires, though a small flat-head screwdriver can be used for wire removal.

Can this base be mounted directly to a panel?
This specific model is optimized for 35mm DIN rail mounting. For surface or panel mount applications, verify required bracket spacing or consider alternative SY-series bases.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

$4.15

Original: $11.85

-65%
IDEC Relays SU4S-21L Relay Base

$11.85

$4.15

IDEC Relays SU4S-21L Relay Base

The IDEC SU4S-21L Relay Base is a high-performance 4-pole socket specifically engineered for DIN rail mount systems. This unit is the direct replacement for the obsolete SU4S-11L and is fully compatible with RU4S and RU42S series relays. Unlike standard screw-terminal bases, the SU4S-21L utilizes push-in terminals, which can reduce field wiring time by up to 55%. This tool-less termination ensures vibration radiation resistance and eliminates the need for periodic torque re-tightening in high-duty industrial environments. The finger-safe design meets IEC 60529 IP20 protection standards, ensuring safety during installation and maintenance. Rated for 10A at 250V AC/DC, this 14-pin base features a separated terminal arrangement with coil terminals at the bottom and contact terminals at the top for clean wire routing. For complex HVACR control panels, this socket supports jumper accessories to simplify common wiring between multiple units.

Key Benefits for Technicians
  • Efficient Wiring: Push-in terminal design eliminates the need for terminal tightening, significantly lowering labor hours during panel assembly.
  • Universal Compatibility: Designed specifically for use with the IDEC RU relay series, ensuring a precise fit and reliable mechanical connection.
  • Compact Footprint: Snap-on 35mm DIN rail mounting allows for high-density installation in crowded control enclosures.
  • Enhanced Safety: Built with flame-retardant UL94 V-0 material and local finger-safe protection for a secure electrical interface.
Common Questions

Is the SU4S-21L compatible with older RU series relays?
Yes, this 14-pin socket is the current standard for RU4S, RU42S, and RN4S mechanical relays, often used as a direct upgrade to older screw-terminal models.

Do I need specialized tools for the push-in terminals?
No, these spring-loaded terminals are designed for tool-less insertion of solid or cord-end ferrule wires, though a small flat-head screwdriver can be used for wire removal.

Can this base be mounted directly to a panel?
This specific model is optimized for 35mm DIN rail mounting. For surface or panel mount applications, verify required bracket spacing or consider alternative SY-series bases.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

Product Information

Shipping & Returns

Description

The IDEC SU4S-21L Relay Base is a high-performance 4-pole socket specifically engineered for DIN rail mount systems. This unit is the direct replacement for the obsolete SU4S-11L and is fully compatible with RU4S and RU42S series relays. Unlike standard screw-terminal bases, the SU4S-21L utilizes push-in terminals, which can reduce field wiring time by up to 55%. This tool-less termination ensures vibration radiation resistance and eliminates the need for periodic torque re-tightening in high-duty industrial environments. The finger-safe design meets IEC 60529 IP20 protection standards, ensuring safety during installation and maintenance. Rated for 10A at 250V AC/DC, this 14-pin base features a separated terminal arrangement with coil terminals at the bottom and contact terminals at the top for clean wire routing. For complex HVACR control panels, this socket supports jumper accessories to simplify common wiring between multiple units.

Key Benefits for Technicians
  • Efficient Wiring: Push-in terminal design eliminates the need for terminal tightening, significantly lowering labor hours during panel assembly.
  • Universal Compatibility: Designed specifically for use with the IDEC RU relay series, ensuring a precise fit and reliable mechanical connection.
  • Compact Footprint: Snap-on 35mm DIN rail mounting allows for high-density installation in crowded control enclosures.
  • Enhanced Safety: Built with flame-retardant UL94 V-0 material and local finger-safe protection for a secure electrical interface.
Common Questions

Is the SU4S-21L compatible with older RU series relays?
Yes, this 14-pin socket is the current standard for RU4S, RU42S, and RN4S mechanical relays, often used as a direct upgrade to older screw-terminal models.

Do I need specialized tools for the push-in terminals?
No, these spring-loaded terminals are designed for tool-less insertion of solid or cord-end ferrule wires, though a small flat-head screwdriver can be used for wire removal.

Can this base be mounted directly to a panel?
This specific model is optimized for 35mm DIN rail mounting. For surface or panel mount applications, verify required bracket spacing or consider alternative SY-series bases.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.