IFM EVF566 Angled Field-Wirable Socket

ifm M12 4-pin A-coded

Full Part Number: EVF566 (Material Code SDOAH040VASFKPG)

Product Line: ecolink series, field-assembled M12 angled socket with screw terminals. Used for on-site custom cable assembly for sensors and actuators. Suitable for food & wet environments, silicone-free.

✅ Key Specifications

Electrical Parameters

Connector: M12 socket, 90° angled, A-coded, 4-pin

Rated Voltage: ≤250 V AC / ≤300 V DC

Rated Current: 4 A @ 40°C ambient

Termination: Screw terminals, 0.25～1 mm² (AWG23～AWG17)

Contacts: Gold-plated for stable long-term signal transmission

Ingress Protection: IP65 / IP67 / IP68 / IP69K (when fully locked and assembled)

Protection Class: Class II

Mechanical & Material Data

Housing: PA6.6 (Nylon, grey)

Locking Nut: 316L stainless steel (1.4404), corrosion resistant

Sealing: EPDM (Ethylene Propylene Diene Monomer), water & wash resistant, silicone-free

Compatible Cable Outer Diameter: φ3.5～6 mm

Tightening Torque: 0.6～1.2 N·m (must not exceed the maximum torque rating of mating connector)

Weight: 41.8 g

Operating Temperature Range: -25 ℃ ~ +100 ℃

✅ Application Scenarios

1. General industrial sites: Wiring for inductive proximity sensors, photoelectric sensors, pressure / flow sensors and small actuators
2. Food & beverage, pharmaceutical and washdown equipment (IP69K for high-pressure hot water cleaning)
3. Humid, dusty and heavy-vibration automated production lines
4. Temporary field rewiring, spare part replacement, no prefabricated cables required

✅ Series Comparison (For Selection Reference)

EVF565: Straight 4-pin A-coded field-wirable socket

EVF566: Angled 4-pin A-coded field-wirable socket (this model)

EVF569: Straight 5-pin A-coded field-wirable socket

EVF570: Angled 5-pin A-coded field-wirable socket

✅ Installation & Maintenance Notes

1. Match wire stripping length to terminals; tighten screws properly to avoid poor contact.
2. Cable sheath must seat fully inside the connector sealing zone, otherwise IP rating will be invalid.
3. Stainless steel nut suitable for humid / corrosive environments; recheck torque periodically.
4. EPDM gaskets are NOT suitable for aromatic hydrocarbons or strong ketone solvent immersion.

✅ Alternative Options

Original IFM: EVF566 is the standard model. Domestic equivalent: M12 A-coded 4-pin angled field assembly socket (verify IP69K and EPDM seal material).

Alternative Brands: Phoenix Contact, Weidmüller M12 field wireable connectors.

Typical Application Cases of IFM EVF566

EVF566 is an M12 A-coded 4-pin angled field-wirable socket. Core advantages: IP69K, EPDM sealing, silicone-free, 316L locking nut. Primarily designed for food & high-pressure washdown environments. Used for field-made sensor cables; angled design saves space and relieves cable bending stress.

Case 1: Beverage Filling Lines (PET bottles / carton filling)

Equipment: Fillers, capping machines, starwheel conveyors, bottle-bottom photoelectric detectors (IFM O5/O6 photoelectric sensors, II proximity sensors)

Pain Points: Dense stations; sensors mounted close to machine frames, straight connectors create heavy cable bending stress. Equipment undergoes daily CIP high-pressure washing; conventional connectors leak water and seals degrade. Coating processes forbid silicone (silicone causes pinholes in coatings).

Solution: Field cable assembly using EVF566. The 90° angle routes cable along machine frames and reduces repeated cable flexing. EPDM seal + IP69K withstand 80°C high-pressure hot water cleaning. Silicone-free material meets coating requirements.

Purpose: Digital signal transmission for proximity and photoelectric sensors; 4-pin supports IO-Link (24V power + signal).

Benefits: Spare part replacement on site without prefabricated cables, shortening downtime. Stainless steel nut resists cleaning chemical corrosion.

Case 2: Food Processing Lines (Meat / Bakery cutting & sorting conveyors)

Equipment: Belt conveyors, metal detectors, cutting stations, silo level detection

Operating Conditions: High humidity, food residue, periodic foam and high-pressure water cleaning; wide temperature fluctuation (-20~85℃)

Application: Level sensors, belt misalignment detectors, photoelectric sensors at metal detector inlets/outlets. Side-mounted on machine frames with limited installation space; angled M12 is the optimal choice.

Selection Reason: EVF566 EPDM is resistant to food cleaners. PA66 housing withstands washdown. Screw terminals allow fast on-site rewiring and adding/removing sensor points.

Case 3: Valve Manifolds & Pipeline Monitoring in Breweries

Equipment: Wort mashing, filtration pipelines, pneumatic valve position feedback sensors (IFM MVQ valve sensors), pipeline pressure/flow sensors

Operating Conditions: Damp steam environment, periodic in-place cleaning, heavy pipeline vibration

Solution: EVF566 field wiring at sensor cable outlets. Angled profile avoids interference with valve bodies and prevents connector impact damage. Gold-plated contacts resist oxidation in humid environments for stable transmission of valve switch status / IO-Link diagnostic signals.

O&M Advantage: Maintain only connector + cable inventory for valve manifold zones; reduce SKUs of different prefabricated cables.

Case 4: Packaging Automation (Carton Packaging, Palletizing Lines)

Equipment: Around palletizing robots, carton-in-place detection, pallet recognition proximity sensors, lift cylinder position sensors

Operating Conditions: Dust, continuous mechanical vibration, compact mounting space with side cable exit from sensors

Application: Digital sensors for PNP/NPN signals. EVF566 screw terminals resist vibration and prevent loose connections. Cable can be cut to required length on-site to avoid waste of fixed-length prefabricated cables.

Note: Usable in non-washdown environments, but EVF566 is preferred where high-pressure cleaning will be implemented later.

Case 5: Cleanroom Process Vessels in Pharmaceutical Plants

Equipment: Purified water tanks, batching tanks, level, flow and temperature sensors

Requirements: Silicone-free material to prevent product contamination; periodic SIP/CIP cleaning and high humidity

Application: 4-pin M12 IO-Link hygienic sensors. EVF566 silicone-free construction meets cleanroom specifications. 316L locking nut resists corrosive cleaning agents. IP68/IP69K withstands on-site washdown.

Case 6: General Automation Retrofit (Old Line Upgrade)

Scenario: Adding proximity / photoelectric sensors to legacy production lines. Fixed-length prefabricated cables rarely match site dimensions; scattered sensor points for small-batch wiring.

Pain Points: Procuring many different-length pre-made M12 cables is costly with long lead times.

Solution: Standardize EVF566 angled field connectors; cut cables to length on demand. Suitable for commissioning and later point adjustments. Angled design fits side mounting on frames and equipment walls to avoid excessive cable bending.

Application Selection Guide (EVF566 vs EVF565)

1. EVF566: 90° angled → Frame sidewalls, confined spaces, beside valve bodies, side cable exit from sensors
2. EVF565: Straight → Axial cable exit, ample available space
3. Limitation: Not recommended under immersion of aromatic hydrocarbons or strong ketone solvents; EPDM seals will degrade.

Typical Compatible Sensor List (4-pin A-coded M12 for EVF566)

IFM II series inductive proximity sensors

O5, O6 series photoelectric sensors

MVQ pneumatic valve position sensors

LMT level sensors, PN pressure sensors (4-pin IO-Link versions)

IFM EVF565~EVF572 Series List

(ecolink M12 A-coded field screw terminal connectors, subfamily of EVF566)

Common features: silicone-free, EPDM sealing, 316L stainless locking nut, IP65/IP67/IP68/IP69K, PA6.6 housing, screw terminals 0.25~1 mm², cable OD φ3.5~6 mm, -25℃ ~ +100℃, designed for food and washdown applications

Quick Selection Guide

1. Socket (to mate with sensor male plug): EVF565 / EVF566 / EVF569 / EVF570
2. Plug (to mate with sensor female socket): EVF567 / EVF568 / EVF571 / EVF572
3. 4-pin: Standard DI/DO sensors, IO-Link (II proximity, O5/O6 photoeyes)
4. 5-pin: Analog signal, dual-channel sensors
5. Straight: Sufficient axial clearance; Angled: Frame side mounting, tight spaces, reduce cable bending stress

Summary of Electrical Ratings

4-pin models: ≤250V AC / ≤300V DC, 4A

5-pin models: ≤60V AC/DC, 4A

Supplementary Remarks

This group EVF565~EVF572 are field-assemble (custom cable) subseries. Not the same category as prefabricated EVF0xx/EVF2xx/EVF3xx cables.

Coding: All A-coded, standard sensor/actuator M12, NOT D/X-code for Ethernet.

All support CIP/SIP high-pressure washdown, silicone-free formulation for food and coating production lines.

IFM EVF566 (M12 A-coded 4-pin Angled Field-Wirable Socket) Installation Procedure

Precondition: Power OFF before work; cable OD φ3.5~6mm, conductor cross-section 0.25~1 mm²; flathead screwdriver recommended; torque wrench mandatory for food / production lines.

Step1: Disassemble Connector & Cable Preparation

1. Disassemble the rear assembly of EVF566: unscrew 316L stainless steel locking nut, cable gland, EPDM sealing sleeve. Keep all components safe.
2. Strip outer cable jacket: Remove outer sheath to ensure the outer jacket can be fully clamped by the rear sealing sleeve.
3. Strip core insulation: Strip approx. 5mm insulation from each inner conductor. No fraying or broken copper strands allowed.

Note: For food washdown environments, use MPPE/PUR wash-resistant cables.

Step2: Thread Cable (Sequence Cannot Be Reversed)

Thread the cable through the rear components in order: Stainless steel locking nut → Cable gland → EPDM sealing sleeve, then feed into the wiring cavity of the angled housing.

Critical: Cable outer sheath must enter inside the EPDM seal. Only inner conductors enter terminal compartment. IP protection will fail if this rule is violated, leading to water ingress during high-pressure washing.

Step3: Terminate Conductors to Screw Terminals (4-pin A-code)

Standard M12 A-coded 4-pin pinout (EVF566 socket)

Pin1: Brown → DC24V+

Pin2: White → Spare I/O

Pin3: Blue → 0V/GND

Pin4: Black → Signal / IO-Link

1. Loosen terminal screws and insert fully stripped copper conductors into terminal openings.
2. Tighten terminal screws to clamp wires. No bare copper may protrude outside terminals (short-circuit risk).
3. Gently pull each wire to verify secure clamping.

Do not over-tighten terminal screws to prevent thread stripping or damage to plastic base.

Step4: Reassemble Strain Relief & Sealing Assembly

1. Push EPDM sealing sleeve fully into the rear of connector body.
2. Screw in cable gland and tighten firmly. The sleeve clamps cable outer jacket to implement strain relief.

Strain relief is critical: Prevent cable pulling force from transferring directly to terminals, avoiding loose connections or wire breakage under vibration.

3. Refit stainless steel locking nut.

Step5: Mate with Sensor M12 Male Plug and Tighten Thread

Mate EVF566 socket to sensor M12 male plug. Tightening torque: 0.6~1.2 N·m. Do not exceed the maximum torque rating of the mating sensor.

For food / high-pressure washdown applications, use torque wrench. General maintenance: hand tighten then 1/4 additional turn.

Never over-torque; risk of cracking sensor plastic housing.

Inspection: EPDM gasket intact, no offset, no dirt trapped on sealing surface.

Step6: Pre-Power Check

1. Continuity test with multimeter: Verify correct pin-to-pin continuity, no short-circuit between pins and no short to ground.
2. Visual inspection: Complete components, proper sealing, cable bend radius greater than minimum limit of the 90° elbow to avoid long-term fatigue failure.
3. Confirm all screws are tight.

✅ Operation & Maintenance Guidelines (Critical for Food Lines)

1. Confirm connector tightness before CIP cleaning. Avoid aromatic or ketone cleaning chemicals which degrade EPDM.
2. Recheck thread torque periodically (every 3~6 months for high-vibration lines).
3. Disassembly & re-assembly: Inspect EPDM gasket each time. Replace immediately if aged or deformed.
4. Never pull the cable by gripping the connector body; always pull on the cable jacket.

❌ Common Mistakes (Causes Loss of IP69K Rating)

1. Cable outer jacket not inserted into sealing sleeve; only thin conductors pass through seal.
2. Frayed copper strands touching adjacent pins.
3. Excessive torque cracking sensor threads or plastic housing.
4. Gasket missing, trapped dust or debris on sealing face.
5. Cable outer diameter outside φ3.5~6mm range; seal cannot clamp cable securely.