BURKERT 20016285 (Type 8652) is a 12-slot AirLINE pneumatic valve island configured for process automation applications, featuring an integrated Industrial Ethernet fieldbus interface supporting PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, and CC-Link IE Field Basic via dual RJ45 ports. Built on an anodised aluminium AirLINE Quick adapter plate, article 20016285 integrates brass push-in connections with D10 mm supply ports and D6 mm working ports. The unit operates with internal auxiliary pilot air over a nominal operating pressure range from -1.00 bar to 10.00 bar and pilot pressure from 3.00 bar to 10.00 bar. Two valve positions incorporate SIA functionality (safety-related shut-off) to isolate individual pneumatic circuits upon external interlock tripping.

Diagnostic messages and operational statuses are presented on an integrated backlit LC display in both clear text and standardized symbols, while remaining concurrently accessible to the higher-level PLC over fieldbus communication. The mechanical form factor is optimized for control cabinet base and wall cutout mounting via AirLINE Quick, providing IP65 ingress protection within closed cabinets.

Factory Configuration of Article 20016285

Article 20016285 is supplied factory-assembled with 12 active pneumatic valve slots utilizing 11 mm Type 6534 solenoid pilot valves. The position-by-position allocation is defined below:

Valve Position	Circuit Function	Description	Safety Shutdown
Position 1	2× 3/2-way CF-C	Servo-controlled, normally closed, with manual override	Standard
Position 2	2× 3/2-way CF-C	Servo-controlled, normally closed, with manual override	Standard
Position 3	2× 3/2-way CF-C	Servo-controlled, normally closed, with manual override	Standard
Position 4	2× 3/2-way CF-C	Servo-controlled, normally closed, with manual override	Standard
Position 5	2× 3/2-way CF-C	Servo-controlled, normally closed, with manual override	Standard
Position 6	2× 3/2-way CF-C	Servo-controlled, normally closed, with manual override	Standard
Position 7	2× 3/2-way CF-C	Servo-controlled, normally closed, with manual override	Standard
Position 8	5/2-way monostable CF-H	Servo-controlled, single coil, port 1 pressurized to port 2 or 4	SIA (External shut-off)
Position 9	5/2-way monostable CF-H	Servo-controlled, single coil, with manual override	Standard
Position 10	5/2-way monostable CF-H	Servo-controlled, single coil, with manual override	Standard
Position 11	5/2-way monostable CF-H	Servo-controlled, single coil, with manual override	Standard
Position 12	2× 3/2-way CF-C	Servo-controlled, normally closed	SIA (External shut-off)

Configuration Parameter	Factory Setting for Article 20016285
Total Valve Slots	12 PCE
Supply Connection Material	Brass (Push-in connector D10 mm)
Working Port Material	Brass (Push-in connector D6 mm)
AirLINE Quick Base Material	Anodised aluminium
Auxiliary Pilot Air Supply	Internal
Left Additional Supply Feed	Push-in connector D6 mm and D10 mm
Right / Middle Additional Supply Feed	Without (0 PCE intermediate feed)
Digital Input Electronic Modules	Not equipped (0 DI)
Integrated Check Valves in 3 (R) / 5 (S)	No
Pneumatic HotSwap in 1 (P)	No
Electrical Protection Class	III according to DIN EN 61140, VDE 0140
Ingress Protection Rating	IP20 (open), IP65 (in closed enclosure with AirLINE Quick)

Technical Data

Technical Parameter	Specification
Housing Material	Polyamide (PA)
Seal Materials	NBR and PUR
Station Width	11 mm per valve slice
Maximum Controllable Valve Functions	Up to 48 functions (24 slots max)
Operating Voltage	24 V DC (±10%, residual ripple 1 Vss)
Nominal Power per Solenoid Valve	0.7 W inrush (0.175 W holding after power reduction)
Nominal Current per Solenoid Valve	29 mA inrush (10 mA holding after power reduction)
Flow Rate QNn Air	310 l/min (measured at +20 °C, 6 bar inlet, 1 bar pressure drop)
Operating Pressure Range	-1.00 bar to 10.00 bar (vacuum to 10 bar)
Pilot Air Pressure Range	3.00 bar to 10.00 bar
Nominal Operating Mode	Continuous operation (100% duty cycle ED)
Switching Time Measurement	Measured according to ISO 12238 standard
Operating Medium	Oil-free or lubricated compressed dry air, neutral gases (5 µm filter recommended)
Compressed Air Quality Class	ISO 8573-1:2010, Class 7.4.4
Ambient / Medium Temperature	-10 °C to +55 °C
Storage Temperature	-20 °C to +60 °C

AirLINE Quick Adapter System

The AirLINE Quick adapter plate allows direct structural assembly of the valve island into the cabinet floor or cabinet side wall cutout. Pneumatic working lines and exhaust channels pass directly through the cabinet boundary, eliminating bulkheads and internal piping.

AirLINE Quick Feature	Specification
Adapter Plate Material	Anodised aluminium (Article 20016285) / Stainless steel 1.4301 optional
Pneumatic Fitting Material	Nickel-plated brass (Article 20016285) / Stainless steel 1.4401 optional
Supply / Exhaust Ports (P, R, S)	Push-in connector D10 mm, 3/8"
Working Ports (2, 4)	Push-in connector D6 mm, 1/4"
Mounting Location	Control cabinet floor or control cabinet side wall
Achievable Cabinet Protection	IP65 according to EN 60529 / Type 4X (NEMA 250 with stainless steel variant)

Circuit Functions and SIA Safety Shut-Off

Article 20016285 combines standard Type 6534 solenoid valves with dedicated SIA variants on position 8 (CF-H) and position 12 (CF-C). SIA valves feature isolated pluggable electrical connections that route coil actuation through an external mechanical emergency shut-down contact or safety relay, independent of bus communication status.

Circuit Function Code	Operating Principle	Manual Override	SIA Available
CF-C	3/2-way solenoid valve, servo-controlled, normally closed	Latching / spring return	Yes (no manual override on SIA)
2× CF-C	Two 3/2-way solenoid valves on one station, normally closed	Latching / spring return	Yes (no manual override on SIA)
2× CF-D	Two 3/2-way solenoid valves on one station, normally open	Latching / spring return	No
CF-H	5/2-way solenoid valve, servo-controlled, port 1 to 2 or 4	Latching / spring return	Yes (no manual override on SIA)
CF-Z	5/2-way impulse solenoid valve with two coils	Latching / spring return	No
CF-L	5/3-way solenoid valve, middle position closed	Latching / spring return	Yes (no manual override on SIA)
CF-M	5/3-way solenoid valve, middle position ventilated	Latching / spring return	No
CF-N	5/3-way solenoid valve, middle position exhausted	Latching / spring return	No

SIA Technical Specification	Value
Individual Valve SIA Connection	Pluggable screw-type terminal, 2-pin, coded, conductor cross-section 0.14–1.5 mm² (AWG 28–16)
Individual SIA Contact Switching Capacity	0.5 A / 24 V DC (potential-free contact required)
Module-Based SIA Connection	Pluggable spring-loaded terminal, 12-pin, conductor cross-section 0.14–1.5 mm² (AWG 26–16)
Module SIA Contact Switching Capacity	1.5 A / 24 V DC (potential-free contact required)

Factory Bridging on SIA Terminals

Upon delivery, the yellow SIA terminals are equipped with removable bridging clips. These clips enable direct operational testing and commissioning prior to routing the safety interlock loop. The bridging clips must be removed before wiring the external safety circuits.

Dimensions and Cabinet Mounting

Dimensions for 4-, 8-, and 12-slot variants are defined in standard millimetres. The 12-slot configuration of article 20016285 uses the dimensions listed below:

Terminal Size	Dimension A (mm)	Dimension B (mm)	Cutout Fastening Holes C	m	n
4-fold	66	—	4× M5	3	1
8-fold	35	111	8× M5	7	2
12-fold (20016285)	77	154	10× M5	11	3

Standard rail mounting complies with EN 50022 (35 × 7.5 mm or 35 × 15 mm). When installing inside enclosures, maintain clearance from the front edge of the terminal to ensure accessibility for valve replacement.

Electrical and Communication Connections

The electrical architecture separates the control/communication power from the valve coil driving voltage. Power supply for communication and display is wired via a 5-pin spring-loaded terminal, whereas valve coils receive power through an independent 2-pin terminal.

Terminal Type	Pin / Wire Colour	Signal Assignment	Functional Description
5-Pin Spring Terminal (Control Power)	Red	24 V DC	Electronics and display supply
5-Pin Spring Terminal	White	CAN_H	büS local bus interface
5-Pin Spring Terminal	Green	Shield	Cable shield grounding
5-Pin Spring Terminal	Blue	CAN_L	büS local bus interface
5-Pin Spring Terminal	Black	0 V DC (GND)	Reference ground
2-Pin Spring Terminal (Valve Power)	Pin 1 (Red)	AUX 24 V DC	Pneumatic valve coil supply
2-Pin Spring Terminal	Pin 2 (Black)	0 V DC (GND)	Valve ground reference

Industrial Ethernet communication connects via dual RJ45 ports (X1 and X2) supporting linear daisy-chain and ring network topologies.

RJ45 Pin	Industrial Ethernet Signal	Function
1	TX+	Transmit Data +
2	TX-	Transmit Data -
3	RX+	Receive Data +
4	N.C.	Not connected
5	N.C.	Not connected
6	RX-	Receive Data -
7	N.C.	Not connected
8	N.C.	Not connected

In combined architectures, an Industrial Ethernet-equipped Type 8652 functions as a fieldbus master node, coordinating subordinate büS-equipped AirLINE islands in sub-networks.

Approvals, Conformities, and Hazardous Area Rules

Type 8652 valve islands comply with relevant European Directives and hold international explosion-protection certifications.

Certification Agency / Directive	Classification / Standard	Description
ATEX (DEKRA BVS 20 ATEX E 031 U)	II 3G Ex ec IIC Gc II 3D Ex tc IIIC Dc	Category 3 device for Zone 2 (gas) and Zone 22 (dust)
IECEx (IECEx BVS 20.0024 U)	Ex ec IIC Gc Ex tc IIIC Dc	International explosion protection standard
UL Listed (USA / Canada)	UL 61010-1 CAN/CSA-C22.2 No. 61010-1	Electrical safety for control and laboratory use
UL Recognized HazLoc (cURus)	Class I, Zone 2, AEx ec IIC Gc Class II, Zone 22, AEx tc IIIC Dc Class I, Div 2, Gr A–D; Class II/III, Div 2, Gr F–G	Hazardous location certification for North America
CCC (China Compulsory Cert.)	GB/T 3836.2021	Certified by SITIIAS for explosive atmospheres in China
Enclosure Rating	Type 4X (NEMA 250)	In closed cabinets with stainless steel AirLINE Quick plate

Hazardous Area Installation Conditions

When operating in potentially explosive environments (Zone 2 or Zone 22), the valve terminal must be mounted inside an approved enclosure with an ingress rating of at least IP54 for gas (3G/Gc) and IP64 or IP6X for dust (3D/Dc). Terminal blocks (24 V DC power, SIA, EVS, and digital inputs) may only be connected or disconnected when the electrical circuits are completely de-energized. Pneumatic Hot Swap valve replacement is prohibited while an explosive atmosphere is present unless the area is formally certified non-hazardous.

Replacement Valves and System Accessories

Replacement Item	Description	Article No.
Type 6534 Standard Valve	2× 3/2-way CF-C, 24 V DC, 270 l/min (with screw)	301374
Type 6534 Standard Valve	2× 3/2-way CF-D, 24 V DC, 310 l/min (with screw)	301375
Type 6534 Standard Valve	5/2-way CF-H, 24 V DC, 290 l/min (with screw)	301376
Type 6534 Standard Valve	5/2-way CF-Z impulse, 24 V DC, 290 l/min (with screw)	301377
Type 6534 Standard Valve	5/3-way CF-L closed center, 24 V DC, 275 l/min (with screw)	301380
Type 6534 SIA Valve	2× 3/2-way CF-C, 24 V DC, shutdown port (with screw)	338802
Type 6534 SIA Valve	5/2-way CF-H, 24 V DC, shutdown port (with screw)	338805
Dummy Valve Plate	Blanking plate for unpopulated valve slots	335779
5-Pin Terminal Plug	Spring-loaded terminal for communication/display power	920180
2-Pin Terminal Plug	Spring-loaded terminal for pneumatic valve AUX 24 V power	920442
AirLINE Quick Screw Set	10× M5 × 10 A2 DIN 6912 cabinet fastening screws	308661
Height Adapter 12-Slot	AirLINE Quick 12-slot height adapter (without intermediate feed)	754961
Retaining Plate 12-Slot	Retaining plate for exterior cabinet mounting (12-slot)	60005567
Blind Plate 12-Slot	Covering plate for 12-slot cutout	754966
ME43 Gateway Module	Industrial Ethernet gateway (PROFINET, EtherNet/IP, Modbus TCP, EtherCAT)	301799
USB büS Interface Set 1	Type 8923 programming set for Bürkert Communicator software	772426
Bürkert Communicator	Configuration and diagnosis software for EDIP devices	Type 8920