Products

Specialist Power Supplies

STG have developed a range of specialist Power Supply Units specifically designed to meet the exacting demands of the Access Control industry.  You will be able to find cheaper general power supplies but you will not find better thought out products with ease of installation suitability at their core.

12V @ 1.5 Amp or 24V @ 0.75Amp Power Supply

12V @ 1.5 Amp or 24V @ 0.75Amp Power Supply

PSU12V1.5A8OC 12Volt @ 1.5Amp/24Volt @0.75Amp Power Supply Unit with Battery Back up, hinged lid, tamper switch and lockable enclosure designed specifically for Access Control applications.

Description - A power supply that will provide either 1.5 Amp 12V DC (13.7) or 0.75 Amp 24V DC (27.4).  The output voltage is changed by means of a simple selector plug.  The Unit provides two separate outputs, one maintained and the other switched, typically via a Fire Alarm Panel.  The maintained output typically supplies the access control panel,  whilst the switched will power the locks so that if the fire alarm is activated, all the power to the locks is dropped, thus allowing free egress.   The PSU houses and charges two 12V 7Ah, or one 12V 12Ah or one 12V 17Ah VRLA batteries.  The unit has separate SPCO (Single Pole Change Over) contacts for  "Mains Fail” monitoring.  Enclosure includes a hinged lid, tamper switch and lock.

Input Voltage: 240Vac

Output Voltage (Selectable): 12Vdc or 24Vdc.

Output Current: 1.5Amp @ 12V or 0.75Amp @ 24V.

Output Configuration: 1 x Maintained for powering Access Control Panel and 1 x switched (via fire alarm panel) outputs to power lock.

Case Material: 1.2 mm Powder Coated (white) Mild Steel.

Temperature Range: -10oC to +40oC

External Dimensions: 406mm x 410mm x 122mm.

Knockouts: 9 x 20mm and 6 x 25mm

Weight: 6.8Kg

Suitable Batteries: 2 x 12v7ah or 1 x 12v12ah or 1 x 12v17ah

Additional features: Mains failure contacts

To purchase this Power Supply Unit online please click here and you will be redirected to our affiliate company e-commerce site.

For a full specification please click the link below.

PSU12V1.5A8OC_Spec_Sheet_Issue1.Rev2.0512.pdf

Cable_Length___Voltage_Drop_Information.pdf

VRLA_Battery_Information.pdf

12V @ 3 Amp or 24V @ 1.5 Amp Power Supply

12V @ 3 Amp or 24V @ 1.5 Amp Power Supply

PSU12V3A8OC 12Volt @ 3 Amp/24Volt @ 1.5 Amp Power Supply Unit with Battery Back up, hinged lid, tamper switch and lockable enclosure designed specifically for Access Control applications.

Description - A 3 Amp 12V (13.7) or 1.5 Amp 24V DC(27.4) PSU with 2 separate outputs designed specifically for Access Control applications. The output voltage is changed by means of a simple selector plug.  The Unit provides two separate outputs, one maintained and the other switched, typically via a Fire Alarm Panel.  The maintained output typically supplies the access control panel, whilst the switched will power the locks so that if the fire alarm is activated, all the power to the locks is dropped, thus allowing free egress.  The switched output has a fuse board with 8 individually fused outputs therefore ensuring that should a fault occur at any lock, only that circuit will be disabled whilst all other lock outputs will remain active.  The PSU houses and charges two 12V 7Ah, or one 12V 12Ah or one 12V 17Ah VRLA batteries.  The unit has separate SPCO (Single Pole Change Over) contacts for  "Mains Fail” monitoring.  Enclosure includes a hinged lid, tamper switch and lock.

Input Voltage: 240Vac

Output Voltage (Selectable): 12Vdc or 24Vdc.

Output Current: 3Amp @ 12V or 1.5Amp @ 24V.

Output Configuration: 1 x Maintained for powering Access Control Panel and 1 x switched (via fire alarm panel)  through 8 individually fused outputs to power locks.

Case Material: 1.2 mm Powder Coated (white) Mild Steel.

Temperature Range: -10oC to +40oC

External Dimensions: 406mm x 410mm x 122mm.

Knockouts: 9 x 20mm and 6 x 25mm

Weight: 8.2Kg

Suitable Batteries: 2 x 12v7ah or 1 x 12v12ah or 1 x 12v17ah

Additional features: Mains failure contacts

To purchase this Power Supply Unit online please click here and you will be redirected to our affiliate company e-commerce site.

For a full specification please click the link below.

PSU12V3A8OC_Spec_Sheet_Issue1.Rev2.0512.pdf

Cable_Length___Voltage_Drop_Information.pdf

VRLA_Battery_Information.pdf

12V @ 5 Amp or 24V @ 2.5 Amp Power Supply

12V @ 5 Amp or 24V @ 2.5 Amp Power Supply

PSU12V5A8OC 12Volt @ 5 Amp/24Volt @ 2.5 Amp Power Supply Unit with Battery Back up, hinged lid, tamper switch and lockable enclosure designed specifically for Access Control applications.

Description - A 5 Amp 12V (13.7) or 2.5 Amp 24V DC(27.4) PSU with 2 separate outputs designed specifically for Access Control applications. The output voltage is changed by means of a simple selector plug.  The Unit provides two separate outputs, one maintained and the other switched, typically via a Fire Alarm Panel.  The maintained output typically supplies the access control panel, whilst the switched will power the locks so that if the fire alarm is activated, all the power to the locks is dropped, thus allowing free egress.  The switched output has a fuse board with 8 individually fused outputs therefore ensuring that should a fault occur at any lock, only that circuit will be disabled whilst all other lock outputs will remain active.  The PSU houses and charges two 12V 7Ah, or one 12V 12Ah or one 12V 17Ah VRLA batteries.  The unit has separate SPCO (Single Pole Change Over) contacts for  "Mains Fail” monitoring.  Enclosure includes a hinged lid, tamper switch and lock.

Input Voltage: 240Vac

Output Voltage (Selectable): 12Vdc or 24Vdc.

Output Current: 5Amp @ 12V or 2.5Amp @ 24V.

Output Configuration: 1 x Maintained for powering Access Control Panel and 1 x switched (via fire alarm panel)  through 8 individually fused outputs to power locks.

Case Material: 1.2 mm Powder Coated (white) Mild Steel.

Temperature Range: -10oC to +40oC

External Dimensions: 406mm x 410mm x 122mm.

Knockouts: 9 x 20mm and 6 x 25mm

Weight: 8.2Kg

Suitable Batteries: 2 x 12v7ah or 1 x 12v12ah or 1 x 12v17ah

Additional features: Mains failure contacts

To purchase this Power Supply Unit online please click here and you will be redirected to our affiliate company e-commerce site.

For a full specification please click the link below.

PSU12V5A8OC_Spec_Sheet_Issue1.Rev2.0512.pdf

Cable_Length___Voltage_Drop_Information.pdf

VRLA_Battery_Information.pdf

12 V @ 8 Amp Power Supply

12 V @ 8 Amp Power Supply

PSU12V3A8OC 12Volt @ 8 Amp Power Supply Unit with Battery Back up , hinged lid, tamper switch and lockable enclosure designed specifically for Access Control applications.

Description - An 8 Amp 12V (13.7) PSU with 2 separate outputs designed specifically for Access Control applications. The Unit contains two separate outputs PCB’s, one maintained output and the other switched, typically via a Fire Alarm Panel.  One output PCB is permanently active and provides 8 x 1A individually fused connections that typically supply the access control panels.  The second output PCB also has 8 x 1A individually fused connections, but is user selectable by applying a low current 12V DC feed to the "Fire Enable” terminal on the PCB. This switched output will power the locks so that if the fire alarm is activated all the power to the locks is dropped thus allowing free egress.   The PSU houses and charges two 12V 7Ah, or one 12V 12Ah or one 12V 17Ah VRLA batteries.  The unit has separate SPCO (Single Pole Change Over) contacts for "Low Volts” and "Mains Fail” monitoring and includes Battery Deep Discharge Protection.  Enclosure includes a hinged lid, tamper switch and lock.

Input Voltage: 240Vac

Output Voltage: 12Vdc

Output Current: 8Amp @ 12V.

Output Configuration: 1 x Maintained for powering Access Control Panels and 1 x switched (via fire alarm panel)  both through 2 x 8 individually fused outputs .

Case Material: 1.2 mm Powder Coated (white) Mild Steel.

Temperature Range: -10oC to +40oC

External Dimensions: 406mm x 410mm x 122mm.

Knockouts: 9 x 20mm and 6 x 25mm

Weight: 8.2Kg

Suitable Batteries: 2 x 12v7ah or 1 x 12v12ah or 1 x 12v17ah

Additional features: Mains Fail & Low voltage contacts and battery disconnect to ensure unit damage by deep discharge.

To purchase this Power Supply Unit online please click here and you will be redirected to our affiliate company e-commerce site.

For a full specification please click the link below. 

PSU12V8A8OC_Spec_Sheet.pdf

Cable_Length___Voltage_Drop_Information.pdf

VRLA_Battery_Information.pdf

12V @ 8 Amp Power Supply with facility to mount 4 Access Control Panels

12V @ 8 Amp Power Supply with facility to mount 4 Access Control Panels

PSUSTG4MB 12Volt @ 8 Amp Power Supply Unit with Battery Back up , hinged lid, tamper switch and lockable enclosure designed specifically for mounting and supplying a variety of Access Control Panels.

Description - An 8 Amp 12V (13.7) PSU with 2 separate outputs designed specifically for Access Control applications.  This unit has been designed to mount 4 "Mercury Panels”.  OEM’s using these panels include: Lenel, Honeywell, RS2 Technologies, Open Options, Keri Systems, Identicard, Arinc, Imron, DvTel, MDI Systems, Synergistics, ID Group, ICX DAQ and Maxxess.  Additionally the PSU can be supplied with a blank mounting plate on which can be mounted panels from other manufacturers such as Paxton. The 8 individually fused  maintained outputs are used to power the panels, whilst the 8 individually fused switched outputs are used to supply the locks.

Input Voltage: 240Vac

Output Voltage: 12Vdc

Output Current: 8Amp @ 12V.

Output Configuration: 1 x Maintained for powering Access Control Panels and 1 x switched (via fire alarm panel)  both through 2 x 8 individually fused outputs .

Case Material: 1.2 mm Powder Coated (white) Mild Steel.

Temperature Range: -10oC to +60oC

External Dimensions: 720mm x 510mm x 122mm.

Knockouts: 9 x 20mm and 6 x 25mm

Weight: 12.6Kg

Suitable Batteries: 1 x 12v7ah or 1 x 12v12ah or 1 x 12v17ah

Additional features: Mains Fail & Low voltage contacts and battery disconnect to ensure unit damage by deep discharge.

To purchase this Power Supply Unit online please click here and you will be redirected to our affiliate company e-commerce site.

For a full specification please click the link below. 

PSUSTG4MB_Spec_Sheet.pdf

Cable_Length___Voltage_Drop_Information.pdf

VRLA_Battery_Information.pdf

12V @ 8 Amp Power Supply with facility to mount 1 Access Control Panel

12V @ 8 Amp Power Supply with facility to mount 1 Access Control Panel

PSUSTG1MB 12Volt @ 8 Amp Power Supply Unit with Battery Back up , hinged lid, tamper switch and lockable enclosure designed specifically for mounting and supplying a variety of Access Control Panels.

Description - An 8 Amp 12V (13.7) PSU with 2 separate outputs designed specifically for Access Control applications.  This unit has been designed to mount 1 "Mercury Panel”.  OEM’s using these panels include: Lenel, Honeywell, RS2 Technologies, Open Options, Keri Systems, Identicard, Arinc, Imron, DvTel, MDI Systems, Synergistics, ID Group, ICX DAQ and Maxxess.  Additionally the PSU can be supplied with a blank mounting plate on which can be mounted panels from other manufacturers such as Paxton. The 8 individually fused  maintained outputs are used to power the panels, whilst the 8 individually fused switched outputs are used to supply the locks.

Input Voltage: 240Vac

Output Voltage: 12Vdc

Output Current: 8Amp @ 12V.

Output Configuration: 1 x Maintained for powering Access Control Panels and 1 x switched (via fire alarm panel)  both through 2 x 8 individually fused outputs.

Case Material: 1.2 mm Powder Coated (white) Mild Steel.

Temperature Range: -10oC to +60oC

External Dimensions: 420mm x 495mm x 122mm.

Knockouts: 9 x 20mm and 6 x 25mm

Weight: 8.6Kg

Suitable Batteries: 1 x 12v7ah or 1 x 12v12ah or 1 x 12v17ah

Additional features: Mains Fail & Low voltage contacts and battery disconnect to ensure unit damage by deep discharge.

To purchase this Power Supply Unit online please click here and you will be redirected to our affiliate company e-commerce site.

For a full specification please click the link below. 

PSUSTG1MB_Spec_Sheet.pdf

Cable_Length___Voltage_Drop_Information.pdf

VRLA_Battery_Information.pdf

Battery Low Voltage Isolator

Battery Low Voltage Isolator

Battery Low Voltage Isolator

Description - The PSUBLVI battery low voltage isolator is designed to prevent batteries from deep discharge after prolonged mains failure.  The unit is connected between the power supply and the battery.  When the battery voltage falls to approximately 9 volts the relay "drops out” and disconnects the battery.  After the mains power is restored the power supply output "pull in” the relay and the battery starts to re-charge.

Two batteries can be connected to the unit. 

Current Consumption: <50mA.

Case Material: White ABS

External Dimensions: 90mm x 50mm x 20mm.

Suitable for Use With:

 PSU12V1.5A8OC

 PSU12V3A8OC

 PSU12V5A8OC

Note: Battery Low Voltage Isolator built into PSU12V8A8OC and PSUSTG4MB

To purchase this Power Supply Unit online please click here and you will be redirected to our affiliate company e-commerce site.