Data Sheet

Relay power rating
If the contact load voltage and current of the relay are in the region enclosed by the solid and
dotted lines in the figure below, the relay can perform stable switching operation. If the relay is
used at a voltage or current exceeding this region, the life of the contacts may be significantly
shortened.
Load type Typical applications Rating
AC1 Non inductive or slightly
inductive loads
16A @ 250V A
AC15 Control of
electromagnetic load
(>72VA)
3A @ 120V AC
1.5A @ 240V AC
AC3 Control of Motor 750W
DC1 Non inductive or slightly
inductive loads
16A @ 24V DC
DC13 Control of
electromagnetic load
0.22A @ 120V DC
0.1A @ 250V DC
A full data sheet for the relays used on the MBH88 is here HF115FD
Configuration.
The MBH88 has a 10-way switch for configuration.
SW1 selects Even Parity when on, or No Parity when off. Odd Parity is not supported.
SW2 & SW3 select the serial baud rate.
SW2 SW3 Baud Rate
off off 9600
off on 19200
on off 38400
on on 115200