nJoin Power Module with Class A GFCI USG-4000


Part Number: USG-4000
The nJoin is an intuitive Power Module with built-in GFCI for large electric floor heating applications. The nSpire Touch, nSpire Touch Wifi, nHance and nTrust thermostats can be extended with additional nJoin power modules. Output can be increased by 15 A per nJoin module.
This support page provides publications, manuals, specifications, videos, support articles, and common support questions


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Common Support Questions (5)

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Publications and Manuals (5)

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Specifications (16)

Videos (2)

Articles (4)

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Common Support Questions


The breaker and wire sizes are selected based on the total amperage of the WarmlyYours heating system connected to a single thermostat. This information is on the WarmlyYours heating system's installation plan, electrical plan, or UL label. Based on guidelines from the National Electrical Code: loads up to 16 Amps may utilize 12 gauge wire with a 20-Amp breaker, and loads up to 12 Amps - 14 gauge wire with a 15-Amp breaker. Local code and/or other factors may change these guidelines.

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Pressing and holding (2-3 sec) physical power/reset button will turn the unit completely OFF. Same process turns the unit back on.

(nHance and nJoin units will have the button on the front faceplate, nSpire Touch WiFi, nSpire Touch and nTrust will have the button on the right side of the faceplate.)

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Solution:

The ground wire in the floor mat must be connected directly to the ground wire of the supply or to the house ground wire.


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Solution:

Yes the adaptive function is reset during a factory reset.


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All thermostats are mandated at 42" height for handicap accessibility, most private residences are mounted at 52-60".

Please see this video on how to install a WarmlyYours nSpiration Series thermostat: https://www.warmlyyours.com/video-media/wire-nspiration-thermostat-to-electric-floor-heating-roll

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Publications and Manuals



Specifications


Warranty / Certifications

Approvals cULus listed
Ingress Protection (IPxx) Rating IP21
Warranty Limited 3-year warranty and lifetime technical support

Electrical

Connection 4 wires, double pole
Connection Method Hardwired
Ground Fault Protection GFCI, Class A, 5 mA
Maximum Current 15 A
Maximum Power 1800 W @ 120 V, 3120 W @ 208 V, 3600 W @ 240 V
Supply 120 VAC, 208 VAC, 240 VAC (50/60Hz)

Logistics

Country of Origin (COO) Denmark

Product Dimensions

Depth 2″
Installed Depth 0.8125″
Length 4.688″
Width 2.875″

Identifiers

SKU USG-4000
UPC (GTIN-12) 881308051259

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