Elmdene G240 N Series User manual

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27.6V DC S WITCH M ODE P OWER S UPPLIES
W ITH R EMOTE F AULT S IGNALLING
Models:
G240xN y
Where ‘x’ is max load current and ‘y’ is Enclosure type
F EATURES
High efficiency cost effective power supply ideal for use in Fire, Access Control and General Security
applications. Featuring a regulated 27.6Vdc output supplying continuous full rated current to load and up to
an additional 0.5A for charging 2 x 12V standby batteries, if fitted. The universal mains input voltage enables
the power supply to be used across a wide geographical area. The highly efficient switch mode design ensures
low operating costs, generates less heat and with a small physical size increases the room available for
additional PCBs or cables. The modular construction simplifies maintenance.

Continuous full rated current to load

Modular construction for ease of maintenance
and installation

Additional 0.5A to charge 2 x 12V standby
batteries

Full electronic short circuit and overload
protection on load output under mains
operation

Universal mains input voltage 90 264Vac

Mains transient protection circuit
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High efficiency electronics for reduced running
costs and lower operating temperatures
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Green Mains present LED
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Installer safe design with all high voltage
electronics fully shrouded
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Yellow Fault LED

Reverse battery connection protection
S PECIFICATION
Input Specification
Voltage (rated) 100 240Vac
Voltage (operating) 90 264Vac
Frequency 50 60Hz
Max Current See Model Specification Table
Mains Input Fuse
Max standby Power
See Model Specification Table
0.8W (No load and no battery connected)
Output Specification
Voltage 27.0 – 28.0Vdc (27.6Vdc nominal) on mains power
21.0 – 24.7Vdc on battery standby
Max load current See Model Specification Table
Ripple 100 mV pk pk max
Load output Fuse See Model Specification Table below
Overload Electronic shutdown until overload or short circuit removed
(under mains power only) (G2403N & G2405N)
Fuse Protection (G2401N & G2402N)
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Standby Battery
Battery Type 2 x 12V Valve Regulated Lead Acid
Battery Capacity See below under enclosure size.
Battery Charging Fuse protection F630mA 20mm glass
Mechanical
Model Enclosure Dimensions
w x h x d [external] (mm)
Max Battery
Capacity
Weight (kg)
[excluding battery]
G240xN C 330 x 275 x 80 2 x NP7 (7Ah)
G2401N
3.16
G2402N 3.22
G2403N, G2405N 3.30
G240xN R 390 x 410 x 80 2 x NP17 (17Ah)
G2401N 6.03
G2402N 6.09
G2403N, G2405N 6.17
G240xN H 400 x 420 x 140 2 x NP17 (17Ah)
G2401N 8.39
G2402N 8.45
G2403N, G2405N 8.53
Environmental
Temperature 10 to +40°C (operating) 75% RH non condensing
20 to +80°C (storage)
C ONNECTIONS
O/P +, Connection to equipment to be powered (Observe polarity)
BATT +, Connection to standby battery. Use cables provided (Observe polarity)
I NSTALLATION I NSTRUCTIONS
This unit is only suitable for installation as permanently connected equipment. This PSU is NOT
SUITABLE for external installation. This unit must be fed from a mains power source having a separate
(approved) disconnect device and fitted with a fuse or other over current protection device rated at 3A
maximum. Ensure that the disconnect device used has appropriate earth fault protection to the
applicable standard. EQUIPMENT MUST BE EARTHED. Before installation, ensure that external
disconnect device is OFF.The PSU should be installed according to all relevant safety regulations
applicable to the application.
Mounting
1) Mount securely in correct orientation allowing minimum clearance – see diagram.
2) Route mains and low voltage output cables via different knockouts and/or cable entry holes.
3) Use bushes and cable glands rated to UL94 HB minimum.
Mains Power Up
4) Attach correctly rated mains cable (minimum 0.5mm
2
[3A], 300/500Vac).Fasten with cable ties.
5) Apply mains power. Check for 27.6Vdc on load outputs. Check Green Mains LED is ON.
6) Disconnect mains power.
Load Output
7) Attach correctly rated load cable and fasten using cable ties. Note polarity.
8) Apply mains power. Check Green Mains LED is ON.
9) Verify load is operating correctly.
10) Disconnect mains power.
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G2401N G2402N G2403N G2405N
Standby Battery
11) Attach supplied battery cables to terminal block and batteries.
NOTE: ensure correct polarity of battery connections: Red lead to +ve of battery 1, Black lead to
ve of battery 2. Connect ve of battery 1 to +ve of battery 2 using short link lead
12) Position batteries to avoid lid fixing screw.
13) Apply mains power. Check Green Mains LED is ON.
14) Check there is no fault indication on Yellow Fault LED.
15) Disconnect mains power. Check that the batteries continue to supply voltage and current to the
load. Check Green Mains LED is OFF.
NOTE: Batteries must have sufficient charge to supply the load
16) Reconnect mains power. Check Green Mains LED is ON.
17) Remove Load fuse and check Yellow Fault LED is ON.
18) Replace Load fuse. Check Yellow Fault LED is OFF.
M ODEL S PECIFICATION T ABLE
G2401N G2402N G2403N G2405N
Output Current 1A 2A 3A 5A
Battery Charge Current 0.5A 0.5A 0.5A 0.5A
Mains LED (Green) √ √ √ √
Fault LED (Yellow) √
√ √ √
Max Mains Input Current (at 90Vac) 1.0A 1.3A 1.4A 2.0A
F1 Mains Input Fuse (20mm HRC) T2.0A T2.0A T3.15A T3.15A
F2 Output Fuse (20mm) F1.0A F2.0A F3.15A F5.0A
F3 Battery Fuse (20mm) 630mA 630mA 630mA 630mA
O PERATING I NSTRUCTIONS
This unit is intended for use by Service Personnel only There are NO USER SERVICEABLE parts inside.
The Green Mains LED will be illuminated whilst the mains supply is present. In the event of a fault
condition, the Yellow Fault LED will be illuminated.
10cm all round
.
N
L
E
10cm all round
.
L E N
10cm all round
.
E
N
L
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M AINTENANCE
There is no regular maintenance required of the PSU other than periodic testing and replacement of
the standby batteries. Reference should be made to the battery manufacturer’s documentation to
determine typical/expected battery life with a view to periodic replacement of the battery.
If the output of the PSU fails the cause of the failure should be investigated e.g. short circuit load. The
fault should be rectified before restoring power to the PSU. The fuses may need to be replaced. Ensure
the correct fuse rating and type is used.
L OCAL I NDICATORS
MAINS LED (Green) Mains present
FAULT LED (Yellow) Fault present: Output fuse fail or battery fuse fail (requires load and
battery to be connected), output short circuit or low output voltage
C OMPLIANCE
This power supply unit meets the essential requirements of the following European Directives:
Low Voltage 2006/95/EC EMC 2004/108/EC
WEEE 2002/96/EC RoHs 2011/65/EU
D ISPOSAL OF P RODUCT AT E ND OF L IFE
This product falls within the scope of EU Directives 2002/96/EC Waste Electrical and Electronic Equipment (WEEE) and
2006/66/EC (Battery). At the end of life, the product must be separated from the domestic waste stream and disposed
via an appropriate approved WEEE disposal route in accordance with all national and local regulations.
Before disposal of the product, any batteries must be removed, and disposed separately via an appropriate approved
battery disposal route in accordance with all national and local regulations. Package used batteries safely for onward
transport to your supplier, collection point or disposal facility.
Caution: Ris of fire or explosion if bare battery wires are allowed to touch.
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