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Square D TeSys Ultra 2 NO Auxiliary Contact Module
The Square D TeSys Ultra 2 NO Auxiliary Contact Module inserts into standard power bases LUB12, LUB32, and LUB38, or advanced power bases LUB120, LUB320, and LUB380. It indicates the ON/OFF running status of the motor regardless of rotation direction, providing 2 NO auxiliary contacts for status feedback in TeSys U/Ultra assemblies. Rated operational voltage (Ue) <= 250 V AC / <= 250 V DC; rated insulation voltage (Ui) 250 V per CSA, UL, and IEC 60947-5-1.
Key Features
- Contact Configuration: 2 NO auxiliary contacts indicate motor ON/OFF running status, whatever the direction of rotation.
- Power Base Compatibility: Fits standard power bases LUB12, LUB32, LUB38 or advanced power bases LUB120, LUB320, LUB380 (Compatibility Code LUFN).
- Rated Operational Voltage (Ue): <= 250 V AC and <= 250 V DC.
- Rated Insulation Voltage (Ui): 250 V per CSA, UL, and IEC 60947-5-1.
- Thermal Current (Ith): 5 A conventional free air thermal current.
- Minimum Switching Voltage: 17 V.
- Country of Origin: France.
Certifications & Compliance
- Insulation Voltage (Ui) referenced to CSA, UL, and IEC 60947-5-1 standards
- ROHS Eur In Scope: Compliant
- Mercury Free
- Toxic Heavy Metal Free
- Reach Free of SVHC
Technical Specifications
- Toxic Heavy Metal Free: Yes
- Ith Conventional Free Air Thermal Current: 5 A
- Take Back: No
- Warranty: 18 months
- Returnability: Yes
- Product Contributes To Saved And Avoided Emissions: No
- Warranty Period: 18 months
- Sustainable Packaging: Yes
- Mercury Free: Yes
- Packaging Without Single Use Plastic: Yes
- Reach Free Shvc: Yes
- ROHS Eur In Scope: Yes
- Recycled Metal Content At Cr Level: 0 %
- Legacy WEEE Scope: In
- China ROHS Regulation: X
- Packaging Made With Recycled Cardboard: Yes
- China ROHS Label: 1
- Serviceability: No
- With Recycled Cardboard: Yes
- WEEE Product Category: 5
- Without Single Use Plastic: Yes
- ROHS Exemption Information: Yes
- Traceability: No
- WEEE Scope: In
- Reach Free Of Svhc: Yes
- Minimum Switching Voltage: 17 V
Typical Applications
- Motor Control Centers and Starter Assemblies
- TeSys U / TeSys Ultra Power Base Signaling
- Motor ON/OFF Running Status Indication
- Industrial Automation Control Panels
- OEM Machine and Panel Building
Why Square D?
Square D TeSys Ultra components deliver dependable motor control signaling, with insulation voltage referenced to CSA, UL, and IEC 60947-5-1 standards and manufacture in France under Schneider Electric quality processes. This module provides consistent 2 NO status feedback across compatible LUB power bases for reliable, code-compliant motor control installations.
Manufacturer Resources
Product Specs
- Product Type:
- Auxiliary Contact
- Series:
- TeSys Ultra
- Configuration:
- 2 NO
- Voltage Rating:
- 250V
- Amperage Rating:
- 5A
- Standards:
- IEC 60947-5-1
- Department:
- Electrical
- Product Group:
- Motor Control & Automation
- Product Subgroup:
- Contactors & Relays
Square D LUFN20 – Frequently Asked Questions
1) What does a 2 NO auxiliary contact module on a TeSys U starter actually signal back to the PLC?
It reports motor ON/OFF running status, and it does so whatever the direction of rotation, so a reverser assembly gives the same status feedback on either direction. You get two normally open contacts, both closing when the starter is running. If your panel logic needs a normally closed contact for a fault or stop interlock, this 2 NO configuration will not provide it.
2) Can I switch 120V or 240V control circuits through the LUFN20, or is it low voltage only?
Rated operational voltage is up to 250 V AC and up to 250 V DC, with a rated insulation voltage of 250 V referenced to CSA, UL and IEC 60947-5-1, so standard 120 V and 240 V control circuits are inside its rating. Conventional free air thermal current is 5 A, which sets the ceiling on what the contacts will carry continuously.
3) I need auxiliary contacts on an ABB or Eaton starter, not a TeSys U base. Is the LUFN20 the wrong part?
Yes, it is the wrong part. The LUFN20 inserts into Square D LUB-series TeSys U power bases only. For an ABB MS116 or MS132 manual motor protector, the side-mount HK1-11 gives 1NO/1NC. For Eaton XT manual motor protectors, the XTPAXSA auxiliary contact is the match, and for Eaton Freedom NEMA starters the C320KG-SD top-mount block fits. ABB OT/OS disconnects take the OA1G10 1-NO switch.
4) Is there a non-Square D 2 NO auxiliary contact that can replace the LUFN20 in a TeSys U power base?
No. The LUFN20 module inserts into Square D power bases LUB12, LUB32, LUB38, LUB120, LUB320 and LUB380 under compatibility code LUFN, so the mounting is specific to those TeSys U/Ultra bases. Other 2 NO auxiliary contacts are built for their own platforms: the Eaton C320DPG20 kit is rated 2NO, 10A at 600V for Eaton contactors, and the Eaton ARA20 is a four-pole top deck adder with a 2NO configuration for AR/ARD machine tool relays. Match the 2 NO function if you are designing fresh, but for an existing LUB base the LUFN20 is the part that fits.
5) I need one normally open and one normally closed contact instead of two normally open - what should I look at?
The Square D LUFN20 provides two normally open contacts only, with no NC pole. If your circuit needs a changeover pair, the ABB HK1-11 is a side-mount auxiliary contact with a 1NO/1NC arrangement, though it is built for ABB MS116/132 manual motor protectors rather than a TeSys U power base. For a TeSys U assembly, plan the control wiring around the 2 NO contacts the LUFN20 supplies.
6) Will this Square D contact module reliably switch a 24V PLC input?
Minimum switching voltage is 17 V, so a 24 V DC PLC input sits above the floor and will switch dependably. Anything below 17 V, such as dry-contact millivolt or low-level signal circuits, is outside what this module is specified to switch, and you would want a contact rated for low-level signaling instead.
7) How much current can the auxiliary contacts carry before I need an interposing relay?
Conventional free air thermal current (Ith) is 5 A. Pilot lights, PLC inputs and small control relay coils are fine direct. For a load above 5 A, such as a contactor coil with high inrush or a solenoid, drive an interposing relay from the contact rather than wiring the load through it. By comparison, the Eaton 2NO auxiliary contact kit we carry is listed at 10A at 600V if you need more headroom on a different platform.
8) What part number do I order for a 2 NO TeSys U auxiliary contact module?
Order Square D LUFN20. It is a single configuration, 2 NO, with no finish or voltage variants to specify. The LUFN prefix is the compatibility code that identifies it as a module for the LUB power bases.
9) Will the Eaton XTPAXSA auxiliary contact work for motor run status the way the LUFN20 does?
The Eaton XTPAXSA is an auxiliary contact for XT manual motor protectors, so it signals from the protector it is attached to. The Square D LUFN20 indicates ON/OFF running status of the motor regardless of direction of rotation, taking its signal from the TeSys U/Ultra power base it inserts into, and is rated <=250 V AC/DC with 5 A thermal current. If your panel is built on LUB power bases, the LUFN20 is the status module for it; the XTPAXSA belongs to an Eaton manual motor protector.
10) My disconnect switch needs an auxiliary contact - is the LUFN20 the right part?
No. The LUFN20 is an insert module for Square D TeSys U/Ultra LUB power bases and carries 2 NO contacts for motor running status. For an auxiliary contact on a disconnect, the ABB OA1G10 is a 1-NO auxiliary contact switch for OT/OS disconnects. Those are two different mounting platforms, so pick by the device you are mounting to.
11) What auxiliary contact matches a NEMA-style contactor rather than an IEC power base?
The Square D LUFN20 is an IEC-platform module built to IEC 60947-5-1 and inserts into TeSys U/Ultra LUB power bases. For NEMA gear, the Eaton C320KG-SD is a Freedom series NEMA top-mount auxiliary contact. If your starter is a NEMA Freedom unit, that is the mounting style to specify; the LUFN20 will not land on it.
12) Is the Square D LUFN20 module recognized to IEC and UL standards for panel builds?
Rated insulation voltage of 250 V is referenced to CSA, UL and IEC 60947-5-1, the control circuit device standard. That is the standard panel builders cite for auxiliary and control switching elements in motor control centers.
13) Is the TeSys Ultra LUFN20 RoHS and REACH compliant for an institutional or government spec?
It is listed as RoHS Europe in scope and compliant, free of REACH SVHCs, mercury free and free of toxic heavy metals. Packaging is recycled cardboard with no single-use plastic. The module is manufactured in France.
14) I have a lighting contactor that needs two extra poles of auxiliary contact - does the LUFN20 fit?
No. The LUFN20 is a motor-status module for Square D TeSys U/Ultra LUB power bases with 2 NO contacts rated 5 A. For lighting contactor duty, the ABB CR460XB2 is a 2-pole auxiliary contact block offered as a 460 Line lighting contactor accessory. Specify by the host contactor family.
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Square D LUFN20 come with a warranty?
Absolutely. The Square D LUFN20 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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