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General Electric

GE Mark VleS IS421UCSBS1A Safety Controller Module

SKU IS421UCSBS1A

Disponibile

12-month warranty
Free returns within 30 days

Manufacturer: General Electric
Product No.: IS421UCSBS1A
Origin United States
Product Type: Safety Controller Module
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 0.9 kg
Dimensions: 20cm x 11.5cm x 5.7cm
Shipping port: Xiamen
Warranty: 12 months

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

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Product Description

Description

The IS421UCSBS1A is an open-type, microprocessor-based controller designed for complete integrated control, protection, and monitoring functions within industrial automation frameworks. Specifically certified as a safety controller, this unit manages critical operations including generator and mechanical drive applications for gas and steam turbines, alongside broader industrial safety control procedures. Operating within the established system environment, it acts as a central execution unit for application-specific safety logic, running alongside dedicated input/output networks to maintain total loop reliability. It interfaces seamlessly with specified communication channels and distributed power infrastructures to ensure deterministic, fault-tolerant execution of safety-instrumented functions.

Features

Silicon Integrity Level Support: Designed and designated specifically as a safety-certified controller for critical protection loops.
Thermal Resiliency: Engineered to maintain precise functional execution across demanding thermal environments up to 65 degC.
Hazardous Area Compliance: Certified for deployment in Zone 2 explosive atmospheres when housed within an appropriately rated industrial enclosure.
Regulated Power Integration: Built to interface directly with certified power distribution boards for structured voltage stability.

Applications

Gas and steam turbine emergency protection and control loops.
Industrial generator protection systems.
Mechanical drive safety-instrumented systems (SIS).
General industrial control applications requiring certified safety execution.

Technical Specifications

Parameter	Value
Manufacturer	GE Nexus Controls LLC
Model	IS421UCSBS1A
Product Type	Safety Controller
Series	Mark VIeS
Input Voltage	28 Vdc max
Maximum Input Current	1.1 A max
Temperature Class	T4
Operating Temperature Range	-30 degC to +65 degC
Pollution Degree Rating	Pollution Degree 2
Country of Origin	USA

Installation Guidelines

Enclosure Requirement: This equipment must be field-mounted in an ATEX Zone 2 certified electrical enclosure providing a minimum ingress protection rating of at least IP54 (as defined in EN 60529).
Environmental Limitation: Ensure the installation environment does not exceed a Pollution Degree 2 rating as defined by EN 60664-1.
Power Source Limitations: Power the unit exclusively via a certified switched-mode power supply (SMPS) with an output current limited to a maximum of 20 A. The power supply must comply with the Vendor Manufactured Control Power supplies specification outlined in system hardware documentation.
Distribution Routing: All electrical energy delivered to the module must pass through a power distribution board certified for the specific classified location of use.
Transient Protection: Provisions must be put in place external to the equipment to prevent the rated input voltage from being exceeded by transient power disturbances of more than 140%.

Compliance and Certifications

Standard / Directive	Classification / Details
ATEX Directive 2014/34/EU	Type Examination Certificate Number: DEMKO 12 ATEX 1114875X Rev. 18
Equipment Marking	Ex II 3 G Ex ec IIC T4 Gc
Harmonized Standards Met	EN IEC 60079-0:2018, EN IEC 60079-7:2015/A1:2018, EN 60079-7:2015
Optical Radiation Safety	Covered based on Exception 1 to the scope of EN 60079-28:2015

Shipping & Returns

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.

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 technical warranty.

FAQ

What are the explicit power input requirements for the IS421UCSBS1A controller?

The module requires a nominal power input of 28 Vdc with a maximum current consumption rating of 1.1 A.

In what type of environment can this safety controller be safely deployed?

It is certified for hazardous areas under the Ex ec IIC T4 Gc classification. It must be installed within an IP54 or better ATEX Zone 2 enclosure and restricted to a Pollution Degree 2 environment.

What external transient protection must be implemented for this module?

External provisions must be made to ensure that transient electrical disturbances do not exceed the rated input voltage by more than 140%.

What type of power supply should be used to feed the distribution network for this unit?

The system must be powered by a certified switched-mode power supply (SMPS) with its output current limited to a maximum of 20 A, routed through a certified power distribution board.

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