3998917

Name: Festo 3998917 Limit switch box SRBE-CA3-YR90-MW-22A-1W-C2N12-C1
Brand: Festo

Limit switch box SRBE-CA3-YR90-MW-22A-1W-C2N12-C1

The Festo 3998917 is a square industrial component based on EN 60947-5-1 and ISO 5211 norms, featuring a contact-based switching output with a single-pin toggle switch function and a mechanical/electrical measuring principle via proximity switch. Certified for SIL 3, this RoHS-compliant device carries CE and UKCA markings and includes explosion protection for Class I, II, and III, Div. 1/21 and Zone 1/21 environments with AEx/Ex d IIB T5 Gb and tb IIIC T108°C Db ratings. It operates within an ambient temperature range of -20 °C to 60 °C and is backed by certificate issuing authorities CSA 263311 and Eurocert. SIL202587141. Submit the exact part number, quantity, and application requirements for a quote.

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Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.

Manufacturer: Festo
Part number: 3998917
Data verification: Manufacturer evidence reviewed

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Technical Specifications

Design: Square
Based on norm: EN 60947-5-1 | ISO 5211
CE marking (see declaration of conformity): As per EU low voltage directive | As per EU RoHS directive
UKCA marking (see declaration of conformity): To UK RoHS instructions | To UK instructions for electrical equipment
Explosion prevention and protection: Class I, Div. 1 (CA) | Class I, Div. 1 (US) | Class II, Div. 1 (CA) | Class II, Div. 1 (US) | Zone 1 (CA) | Zone 1 (US) | Zone 21 (CA) | Zone 21 (US)
Type of ignition protection for gas: AEx d IIB T5 Gb | Ex d IIB T5 Gb
Type of (ignition) protection for dust: AEx tb IIIC T108°C Db | Ex tb IIIC T108°C Db
Explosion protection certication outside the EU: Class I, Div. 1 (CA) | Class I, Div. 1 (US) | Class II, Div. 1 (CA) | Class II, Div. 1 (US) | Class III (CA) | Class III (US) | EPL Db (CA) | EPL Db (US) | EPL Gb (CA) | EPL Gb (US)
Certicate issuing authority: CSA 263311 | Eurocert. SIL202587141
Note on materials: RoHS compliant
Safety integrity level (SIL): SIL 3
Measuring principle: Mechanical/electrical | Via proximity switch
Ambient temperature: -20 °C...60 °C
Switching output: Contact-based
Switching element function: Toggle switch, single-pin

Engineering context

Identification and RFQ Guidance

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Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.

Technical verification

Our sourcing response is prepared against Festo 3998917. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.