Isolation Type 16 Channel Relay Module can select high-level or low-level signal triggering, and only needs 5mA current to drive the relay with 10A control capability to pull in.
The module adopts genuine high-quality power relay, high-quality small-sized package optocoupler, high-power high dielectric strength triode, red and blue signal indicator, military-grade double-sided PCB board, and with reasonable layout and stable performance, can be widely used in a variety pf powers control.

Features:
1.With power supply reverse connection function to prevent damaging the module.
2.The module uses genuine high-quality relay, rated load of normally open interface: 250V/10A, DC 30V/10A.
3.Using small-sized two-way isolated optocoupler, with strong anti-interference ability and stable performance; trigger current is only 5mA.
4.Users can select the control level of the relay, which can be high level pull-in or low level pull-in.
5.The module has built-in finite current resistor. The positive and negative pole control of the power supply can be used directly, or use the I/O port of the single-chip to control.
6.Power indicator (red), relay status indicator (blue)
7.User-friendly interface design, all interfaces can be directly connected by the wiring terminals, very convenient.
8.Designed with 4 3mm fixed bolt holes for easy mounting.

Specification:
Supply voltage: DC 5V/12V/24V (Optional)
Trigger current: 5mA
Mounting hole diameter: 3mm
Module size (L*W*H): 15.3*10*2.0cm / 6.0*3.9*0.8in
Package weight: Approx. 246g/8.7oz

Module interface:
Module control interfaces have 16 wiring terminals.
1. DC+: Connect to DC power supply + (5V, 12V and 24V modules optional)
2. DC-: Connect to DC power supply -
3. XM: Common terminal of optoelectronic isolation chip
If use high level control: This interface should be connected to the negative pole of control board power supply.
If use low level control: This interface should be connected to the positive pole of control board power supply.
4. X1-X16: Relay control interface
Relay output interfaces have 48 wiring terminals.
1. NO1-NO16: Normally open interfaces of the relays
2, COM1-COM16: Common interface of the relays
3. NC1-NC16: Normally closed interfaces of the relays

Packagelist:
1 * 16 Channel Relay Module