125720-01 4-Channel Relay Output Module , China 125720-01 4-Channel Relay Output Module Manufacturers, Suppliers, Factory

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	125720-01
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Power Consumption	5.8 Watts typical
OK LED	Illuminated when module is functioning properly
TX/RX LED	Flashes to indicate communication with other modules in the rack
CH ALARM LED	Illuminated to indicate Relay Channel is in alarm state
Relay Type	Single-pole, double-throw (SPDT)
Relay Sealing	Epoxy-sealed
Arc Suppressor	250 Vrms, installed as standard
Contact Life	100,000 cycles @ 5 A, 24 Vdc or 240 Vac
Relay Operation	Each relay switch selectable for Normally Deenergized or Normally Energized
Operating Temperature	-30°C to +65°C (-22°F to +150°F)
Storage Temperature	-40°C to +85°C (-40°F to +185°F)
Humidity	95%, non-condensing
Rack Space Main Module	1 full-height front slot
Dimension:	2.5x11x14cm
Weight:	0.46kg

Description

The 125720-01 4-Channel Relay Output Module is a full-height industrial automation module providing four independent SPDT relay outputs. Installed in one full-height front slot with a corresponding rear I/O slot, 125720-01 enables direct alarm and trip signal control in Bently Nevada 3500 monitoring racks. Each relay in 125720-01 supports selectable Normally Deenergized or Normally Energized operation and includes epoxy-sealed construction with a 250 Vrms arc suppressor. Maximum switched voltage is 125 Vdc or 250 Vac, maximum switched current is 2 A AC and up to 2 A at 0–30 Vdc, and contact life is 100,000 cycles at 5 A, 24 Vdc or 240 Vac. Operating temperature for 125720-01 ranges from -30°C to +65°C, storage from -40°C to +85°C, and humidity tolerance is 95% non-condensing. LED indicators include OK, TX/RX communication, and channel alarm status.

Applications

Trigger Turbine Trip Solenoids

125720-01 relays switch turbine emergency trip circuits when monitored vibration or overspeed values exceed limits. With contact ratings of 5 A at 24 Vdc, the module directly actuates solenoids without additional relays.

Signal Compressor Alarms in Oil and Gas Stations

125720-01 drives compressor alarm panels using its four channels. Each channel can be mapped to different vibration or temperature inputs, using 0–10 VDC or 4–20 mA signals to trigger visual and audible alarms.

Stop Pumps in Process Plants

125720-01 allows automated pump shutdown based on vibration or temperature input thresholds. The programmable AND/OR logic ensures the pump only stops when the correct combination of conditions is met.

Interface With Distributed Control Systems

125720-01 outputs relay signals to DCS digital inputs. With switching limits of 125 Vdc / 250 Vac and 2 A current, it reliably transmits rack events to plant-wide automation systems.

Specifications

Rack Space I/O Modules	1 full-height rear slot
Minimum Switched Current	100 mA @ 12 Vdc (DC, Resistive load)
Maximum Switched Current DC	2 A @ 0-30 Vdc, 0.75 A @ 48 Vdc, 0.2 A @ 125 Vdc
Maximum Switched Voltage DC	125 Vdc
Maximum Switched Voltage AC	250 Vac
Maximum Switched Current AC	2 A
Maximum Switched Power	450 VA

Competitive Advantage

Consolidate Four Relays in One Module

125720-01 provides four SPDT relays in a single full-height slot, saving rack space compared to individual relay modules. With 450 VA maximum switched power, it can operate medium-load industrial circuits directly.

Operate AC and DC Control Circuits

125720-01 switches up to 125 Vdc or 250 Vac and 2 A load, eliminating the need for external interposing relays in many applications.

Front Panel Status Monitoring

OK, TX/RX, and CH ALARM LEDs on 125720-01 allow operators to verify module operation and active alarms instantly, reducing maintenance time.

Function in High Temperature Cabinets

With an operating range of -30°C to +65°C and epoxy-sealed relays, 125720-01 maintains reliable operation in industrial control rooms and turbine enclosures.