Weidmuller 8965420000 ACT20X-2SDI-2HDO-S Valve Control Module

Q: What software is required to configure the ACT20X-2SDI-2HDO-S?

The module is configured using standard FDT/DTM software, which allows for precise parameter adjustments, diagnostic monitoring, and channel setup.

Q: Can this module be used in explosive atmospheres?

Yes, the module is designed as an intrinsically safe (Ex-i) barrier, allowing it to safely interface with solenoids and valves located in hazardous areas.

Q: What diagnostic functions are integrated into the 8965420000?

It features an integrated alarm function that triggers a relay output in the event of a supply voltage loss or an internal device error.

Q: What is the step response time of this valve control module?

The module features a fast step response time of less than or equal to 10 milliseconds, ensuring rapid valve actuation.

SKU 8965420000

In stock

12-month warranty
Free returns within 30 days

Manufacturer: Weidmuller
Product No.: 8965420000
Country of origin:Germany
Product Type: Intrinsically Safe Valve Drivers
Payment: T/T, Western Union
Weight: 1200g
Dimensions: 117.2 mm x 22.5 mm x 113.6 mm
Shipping port: Xiamen
Warranty: 12 months

Facilitating the safe control of intrinsically safe valves in hazardous environments, the Weidmuller 8965420000 (ACT20X-2SDI-2HDO-S) provides reliable signal isolation and switching. This dual-channel valve control module acts as an isolated barrier, translating control signals from the safe area into intrinsically safe outputs to drive solenoids, valves, and acoustic alarms located in Ex zones.

Key Features

Dual-Channel Isolation: Supports two independent channels for space-saving, high-density cabinet layouts.
Integrated Diagnostics: Built-in alarm function detects and reports supply voltage loss and internal device errors.
Software Configurable: Fully compatible with FDT/DTM software for precise parameter adjustment and monitoring.
Secure Connections: Equipped with robust screw terminals to ensure vibration-resistant field wiring.
Compact Profile: 22.5 mm housing width optimizes DIN-rail space in control enclosures.

Industrial Applications

Oil & Gas Refineries: Actuation of intrinsically safe solenoid valves in hazardous processing zones.
Chemical Processing: Safe signal transmission and isolation for chemical dosing and distribution systems.
Pharmaceutical Manufacturing: Control of pneumatic and hydraulic valves in explosive dust or gas atmospheres.
Water & Wastewater Treatment: Isolated valve control in wet wells and chemical treatment areas.

Technical Specifications

Specification Parameter	Value / Rating
Manufacturer	Weidmuller
Article Number (SKU)	8965420000
Model Designation	ACT20X-2SDI-2HDO-S
Product Type	Intrinsically Safe Valve Control / Solenoid Driver
Number of Channels	2
Supply Voltage Range	19.2 to 31.2 V DC
Power Consumption	<= 3.1 W
Nominal Switching Voltage	<= 125 V AC / 110 V DC
Continuous Current	<= 0.5 A AC / 0.3 A DC
Step Response Time	10 ms
Configuration Method	FDT/DTM software
Connection Type	Screw connection
Operating Humidity	0 to 95% (non-condensing)
Protection Degree	IP20
Net Weight	0.180 kg
Dimensions (H x W x D)	117.2 mm x 22.5 mm x 113.6 mm
Shipping Weight (Calculated)	1.2 kg

Empirical Engineering Insights

Alternative Models & Compatibility

The ACT20X-2SDI-2HDO-S is highly compatible with standard DCS and PLC digital output cards. When integrating this module into existing systems configured with older ACT20 series units, ensure that the FDT/DTM frame application is updated to the latest device description files to prevent communication errors during setup.

Application Pitfalls & Engineering Notes

When mounting multiple units side-by-side on a DIN rail, ensure the cabinet's thermal management system is active. Under maximum continuous current loads (0.5 A AC / 0.3 A DC), heat dissipation within high-density enclosures can rise. Maintain a minimum clearance or use active ventilation if the ambient temperature inside the panel consistently exceeds 45 degC.

Commissioning & Wiring Tips

Always maintain strict physical separation between the blue intrinsically safe (Ex-i) field wiring and the non-intrinsically safe supply/alarm connections. Mixing these routing paths violates hazardous area compliance. Use shielded cabling for the control signals to minimize high-frequency noise interference in high-transient environments.

Installation Guidelines

CRITICAL WARNING

Isolate and de-energize all power sources before mounting, wiring, or configuring this module. Ensure the surrounding atmosphere is verified as non-hazardous (gas-free) before opening any protective enclosures or adjusting field connections.

1

Snap the module securely onto a standard TS 35 DIN rail, ensuring the grounding spring makes solid contact with the rail.

2

Connect the 19.2 to 31.2 V DC power supply to the designated non-Ex power terminals.

3

Wire the intrinsically safe valve/solenoid field devices to the blue Ex-i screw terminals, keeping the cables physically isolated from power lines.

4

Connect the alarm relay outputs to your supervisory PLC or safety system to monitor for voltage loss or device faults.

FAQ

What software is required to configure the ACT20X-2SDI-2HDO-S?

The module is configured using standard FDT/DTM software, which allows for precise parameter adjustments, diagnostic monitoring, and channel setup.

Can this module be used in explosive atmospheres?

Yes, the module is designed as an intrinsically safe (Ex-i) barrier, allowing it to safely interface with solenoids and valves located in hazardous areas.

What diagnostic functions are integrated into the 8965420000?

It features an integrated alarm function that triggers a relay output in the event of a supply voltage loss or an internal device error.

What is the step response time of this valve control module?

The module features a fast step response time of less than or equal to 10 milliseconds, ensuring rapid valve actuation.

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30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

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Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

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