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Options & Ordering Information

The Alfred Solenoid Controlled Guard Lock product can be configured from a selection of Actuator Modules, Head Modules 

and can include up to three Key Adaptors all mounted above an Ex rated Solenoid Module.

Each unique Alfred Solenoid Controlled Guard Lock product configuration will have its own unique part number in the format 

below. Part Numbers can be generated via Fortress’ online product configurators or by speaking to your local Fortress 

Channel partner.

Note:

 All Alfred Solenoid Controlled Guard Lock products will have the EXP part number prefix.

Operating Instructions: Alfred Solenoid Controlled Guard Lock

3

Actuator Modules 

Description

Part No.

Handing

Tongue Assembly

EXPTA*

Front / Left / Rear / Right

•  Vertical misalignment of +/-12mm.

•  Minimum hinged guard operating radius: 750mm.

•  Can be fitted in two positions at 90˚ to either hinged or sliding door/gates.

Description

Part No.

Handing

Hinged Handle Assembly

EXPHL1

Front

•  Integrated handle for guarding applications with hinged door/gates. 

•  Vertical misalignment of +/-12mm.

•  6mm overtravel allowance.

•  Minimum hinged guard operating radius: 250mm.

Description

Part No.

Handing

Standard Slidebar Assembly

EXPTN*

Left / Right

•  Slidebars have a second operating action and are suitable for hinged or sliding 

guards. No hinged guard radius limit is present and the risk of impacts to 

interlock on large guards is removed.

•  Built in lock-out facility to accommodate a maximum of 4 padlocks with up to 

8mm diameter shackles.

Description

Part No.

Handing

Sprung Slidebar

EXPTS*

Left / Right

•  Standard Slidebar with spring mechanism to extend Actuator when in knob has 

been lifted.

* Part Number 1, 2, 3 or 4 here indicates Actuator and Head Orientation, See Figure 1 below.

EXP

- - -

- - 

- - - - - - - - - -

 

- - - - -

Actuator Module

Head Module

Key Adaptor 

Module(s) 

Up to 3 total

Ex Rated Solenoid 

Module

Summary of Contents for FORTRESS Alfred

Page 1: ...operating instructions enclosed It must be installed by competent and qualified personnel who have read and understood the whole of this document prior to commencing installation If the equipment is u...

Page 2: ...65 3 4 When used for a Group III application the adhesive labels and non metallic coatings may store electrostatic charge and become a source of ignition Guidance on protection against the risk of ign...

Page 3: ...750mm Can be fitted in two positions at 90 to either hinged or sliding door gates Description Part No Handing Hinged Handle Assembly EXPHL1 Front Integrated handle for guarding applications with hinge...

Page 4: ...21 ALFRED SAFETY SWITCH OPERATING INSTRUCTIONS IMAGES DWG NO SD 00 2 LEFTHAND FACING DIRECTION OF ACTUATOR ENTRY 1 FRONT FACING HEAD 3 REAR FACING 4 RIGHTHAND FACING Head Modules Description Part No H...

Page 5: ...hinery that is required to be isolated before access Safety Key Adaptors Used to provide a personnel key function to prevent unexpected machine start up Extracted Key Adaptor Also used as a personnel...

Page 6: ...dard dustcover Description Part No Extracted Key Adaptor EKL7 Master lock type standard dustcover Description Part No Extracted Key Adaptor EKL3 Standard lock type padlockable dustcover Description Pa...

Page 7: ...olenoid EXPXL416 Power to Unlock device Dual Safety Circuits change state on opening closing of a guarded area or operation of an interlocked key Monitoring circuit on Solenoid action provides feedbac...

Page 8: ...channel Solenoid Voltage N A 24V DC 10 Solenoid Power Rating N A 350mA max 24V DC Solenoid Rating Duty Cycle N A 100 Transient Overvoltages Installation N A Category III Cable Size N A 28 12 AWG Diagn...

Page 9: ...depending on product selection and configuration See specific functioning section below With Solenoid de energised the Internal mechanism of the Power to Unlock Ex Rated Solenoid Module automatically...

Page 10: ...Monitor Circuit opens breaks Safety Circuits remain closed Gate Monitor Circuit remains broken Unlocking De Energise the Solenoid Internal locking mechanism dis engages to remove locking force from th...

Page 11: ...k product An Extracted style Key Adaptor will always be located closest to the Head Module If Extracted style and Safety style Key Adaptors are configured together their operation sequence will combin...

Page 12: ...essinterlocks com THE COPYRIGHT OF THIS DRAWING BELONGS TO FORTRESS INTERLOCKS Ltd THE CONTENT OF THIS DRAWING IS CONFIDENTIAL AND MUST NOT BE DISCLOSED TO ANY 3rd PARTY WITHOUT SPECIFIC WRITTEN APPRO...

Page 13: ...FORTRESS INTERLOCKS Ltd THE CONTENT OF THIS DRAWING IS CONFIDENTIAL AND MUST NOT BE DISCLOSED TO ANY 3rd PARTY WITHOUT SPECIFIC WRITTEN APPROVAL ALL DIMENSIONS ARE IN mm UNLESS OTHERWISE STATED A3 SC...

Page 14: ...ntenance procedures are all easily possible All fixing screws used to mount the complete Alfred Solenoid Controlled Guard Lock product must be permanently prevented from removal If mounting fixings ar...

Page 15: ...ATE 25 02 21 ISSUE 0 ALFRED SAFETY SWITCH OPERATING INSTRUCTIONS IMAGES DWG NO SD 00033 Operating Instructions Alfred Solenoid Controlled Guard Lock 15 Electrical Connection and Installation Tools and...

Page 16: ...Circuit and terminal 13 Solenoid Monitor Circuit Terminal 12 Guard Open Output Signal Control signal produced by the Ex Rated Solenoid Module to indicate that the Machine Guarding is in an open state...

Page 17: ...3 14 INTERNAL EARTHING POINT SHALL BE USED FOR EQUIPMENT GROUNDING CONNECTION FIX WITH M4 FIXING SCREW SUPPLIED SEE OPERATING INSTRUCTIONS FOR DETAILS XPXL471 13 3 4 EXTERNAL EARTHING POINT SHALL BE U...

Page 18: ...ard Lock product If damage or wear is found with an assembly please contact your local Fortress Channel Partner The complete interlock must be replaced after 1 million switching operations Disposal Th...

Page 19: ...the declaration described above is in conformity with the relevant Union harmonisation legislation 2014 34 EU The following harmonised standards and other technical specifications were used in suppor...

Page 20: ...e is in conformity with the relevant Union harmonisation legislation 2014 34 EU The following harmonised standards and other technical specifications were used in support of this declaration Harmonise...

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