Nero Dry Contact
The Nero Dry Contact is a voltage free contact, able to switch a DLPS load up to 10A or act as a voltage free contact for controlling other systems such as garage doors or gates.
The module can be controlled either through a Z-Wave Controller or through a wall switch.
The module supports connection of a digital temperature sensor (available separately).
Nero Dry Contact operates as a repeater in your mesh network, increasing reliability and range when combined with other Nero devices.
Installation
RISK OF ELECTRICAL SHOCK! This device should only be installed by a qualified electrician and with appropriate precautions taken to ensure that power is not present during installation.
Even when the module is turned off, voltage may be present on its terminals. Any works on changes related to connection mode or load must always be performed with power disconnected.
- Before the installation, disconnect the power supply
- Connect the module according to the electrical diagram
- Locate the antenna as far as possible from metal elements
- Do not shorten the antenna
- Nero Dry Contact requires an active and neutral for operation
Supported Switches
The module supports momentary switches (push button) and toggle switches. The module is factory set to operate with momentary switches. Momentary switches are recommended.
Protection when switching Different Load Power Supply (DLPS)
The internal relay connected to the IN and OUT terminals of the device is electrically isolated from the rest of the device. It is therefore required that when using the Dry Contact you must use protection on the load side as illustrated in the wiring diagram.
Overcurrent Protection Fuse
Nero Dry Contact must be installed with an over-current protection fuse not rated higher than 10A as illustrated in the wiring diagram.
Wiring Diagrams
High Voltage (AC)
Terminal | 230V AC |
N | Neutral |
L | Live/Active |
IN | Input terminal of the relay |
OUT | Switched output terminal of the relay |
I2 | Not in use |
I1 | Input wall switch |
TS | Temperature sensor connection |
Low Voltage (DC)
Terminal | 24V DC |
N | Positive |
L | Negative |
IN | Input terminal of the relay |
OUT | Switched output terminal of the relay |
I2 | Not in use |
I1 | Input wall switch |
TS | Temperature sensor connection |
Specifications
Power Supply | 110-230V AC ±10% @ 50Hz (24-30V DC) |
Maximum load (resistive) | 10A (2300W @ 230V AC) 10A (240W @ 24V DC) |
Temperature sensor range | -50 to +125ºC |
Operating temperature | -10 to +40ºC |
Wireless mesh range | Up to 30m indoors |
Own electrical consumption | 0.4W |