Specifications
Model
W-M1B403/404
Relay Output Channels
4 Form A, 4 Form C (W-M1B403) 8 Form A, 8 Form C (W-M1B404)
Contact Rating
5A 250VAC/ 30VDC
Isolation
2500 Vrms
Operate Time
10 ms Max.
Release Time
5 ms Max.
Electrical Endurance
100000 ops. @ 5A resistive load
Interface
RS-485
Power Consumption
2.4W @ 24 VDC (W-M1B401) 3.8W @ 24 VDC (W-M1B402)
Power Requirement
10 ~ 60 VDC
Watchdog Timer
System (1.6 Second Fixed) Communication (Programmable)
Intra-Module Isolation, Field-to-Logic
2500 VDC
Protocol
Modbus RTU
Speed
From 1200-115.2k bps
Distance
1.2 km at 9.6 kbps
Operating Temp.
-25 ~ 70 ºC
Storage Temp.
-30 ~ 75°C
Operating Humidity
10% to 90% (non-condensing)
LED Indicators
PWR, Comm, Program, Status
Weight
65g (Average)
Dimensions
472 x 121 x 120mm
W-M1B403
8-ch Relay Output Module
W-M1B404
16-ch Relay Output Module
Overview
W-M1B403/404 - 8 / 16 Channels Relay Output Module from.
ARBOR W-series remote I/O modules bring field signals onto an RS-485 Modbus RTU bus with 2500 VDC intra-module isolation, a 10-60 VDC wide-range supply and DIN-rail mounting. They are the standard building block for industrial data acquisition, building automation and factory-floor SCADA where a hardened, wide-temperature I/O layer is required.
Key Benefits
2500 VDC field-to-logic isolation protects the controller from ground loops and surges. -25 to +70 °C operation with 10-60 VDC input suits unregulated industrial supplies. Modbus RTU at 1200-115.2 kbps over 1.2 km keeps wiring simple. Channel-independent configuration, watchdog and LED status indicators simplify commissioning.
Applications
Factory automation and machine control · SCADA and remote telemetry · Building and HVAC automation · Energy and utility monitoring · Environmental and process data acquisition · Test benches and laboratory instrumentation
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