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Zūm® Wired J-Box Load Controller, Switching, 20A, 100-277V with Link Communication


A Zūm® Wired junction box-mounted load controller with Zūm® Link communication designed to provide intelligent lighting control as part of a complete Zūm wired commercial room lighting system.

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Key Features

  • Zūm® wired junction box-mounted lighting load plug load controller
  • Integration with Zūm keypads, occupancy sensors, vacancy sensors, and daylight sensors (sold separately)
  • Zero cross switch control of 20A, 100-277V
  • Supports in‑room device daisy chaining
  • Integrated contact closure input
  • Flying lead wiring connections
  • Knockout mount to a standard 4 in. square junction box

Product Overview

The Crestron Zūm® Wired ZUMLINK‑JBOX‑20A‑SW provides zero cross switching for high inrush lighting control. The device can be wired to other in‑room Zūm devices to provide load control. Energy-saving options are available to enable daylighting, occupancy or vacancy sensing, and centralized monitoring and management.

Zūm Link Wired Technology
Zūm Link technology allows for in‑room lighting control through compatible keypads and sensors. Two RJ‑45 ports on the device allow for connection to a Zūm Net device and for in‑room device daisy‑chaining. Similar to the Zūm Wireless system, Zūm Link devices work together in a local ecosystem to provide customized solutions as needed.

Easy Installation
For flexibility and ease‑of‑use, Zūm load controllers are installed in a room with Zūm keypads, occupancy or vacancy sensors, and/or a daylight sensor for complete commercial lighting control. Finish the installation by quickly commissioning the room through the Zūm app.

Override Contact Closure Input
An integrated contact closure input or relay output on the ZUMLINK‑JBOX‑20A‑SW provides the means to place all connected Zūm Net and Zūm Link devices into Emergency Override mode.

Product Specs

Load Control
Load Types: LED, fluorescent ballast, incandescent, magnetic low-voltage, electronic low-voltage, neon/cold cathode, high-intensity discharge
Load Rating: 20A, high inrush, zero cross switching
Short Circuit Protection: 40A non-replaceable fuse

Power Requirements
Line/Load Voltage: 100-277VAC, 50/60 Hz
Idle Power Consumption: 1 W

Wired Communications
ZUMLINK(ROOM): (2) RJ-45 ports; In-room Zūm Link device daisy-chaining; 85mA power available for Zūm Link devices, including ZUMLINK-KP keypads
24V, OCC,GND: Occupancy sensor input; 85mA available output current; Spring clamp connector
24V, PHO,GND: Photo sensor input; Spring clamp connector
OVR, GND: Override control input; Spring clamp connector

Controls and Indicators
TEST: (1) Pushbutton and (1) green LED; Push to toggle the switched load output on and off; Press and hold to cycle the dimming level up and down; LED indicates that the load is turned on; LED lights and flashes during room setup and factory reset
ZUMLINK Status: (1) bi-color green/red LED;LED lights green in normal operation; LED lights red when a fault is detected

Hot: (1) 14 AWG Class 1 flying lead;Black, line power input
Neutral: (1) 14 AWG Class 1 flying lead; White, neutral
Switched Load: (1) 14 AWG Class 1 flying lead; Red, switched load output
Red: (1) 14 AWG Class 1 flying lead, red, AC output

Temperature: 32° to 104°F (0° to 40°C)
Humidity: 10% to 90% RH (noncondensing)

Housing: Plastic, white, UL 94 5VA flame rated
Mounting: Mounts to the side of a 4 in. square junction box via a 1/2 in. conduit knockout;Meets the requirements of UL 2043 for installation in an environmental air-handling (plenum) space

Height: 4.83 in. (123 mm)
Width: 4.25 in. (108 mm)
Depth: 2.03 in. (52 mm)

7 oz (199 g)

Regulatory Model: M201933002
cUL916, cUL2043UL®

Listed for US & Canada, IC, FCC Part 15 Class A digital Model device, UL 916, UL 2043, UL 94 5VA
Zūm® Wired J-Box Load Controller, High Inrush Switch, 20A,100-277V with Link Communication

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