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Murphy S10 Series User Manual

S10 series, Automatic battery chargers ratings to 10 amps

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S10 series

AUTOMATIC BATTERY CHARGERS
RATINGS TO 10 AMPS

The S10 is a constant potential, open-chassis battery
charger, suitable for use with either 12V DC or 24V DC,
lead acid or Ni-Cd systems. Although primarily designed
for the diesel generator market, the charger may be
configured for use in a wide range of unattended industrial
applications where standby power is required at all times.

Each unit consists of a transformer, rectifier and control
circuitry. The charger monitors the battery voltage and
delivers as much current as the cells require up to the
current limited maximum, giving a rapid recovery of charge.
Once the battery is fully charged, the charger provides a
low trickle charge to maintain the cells for an indefinite
period at a pre-set float voltage, without overcharging, plus
any additional current required to support a static load.

Also included is a range of on-board fault monitors
complete with volt free relay contacts for remote
alarm signalling.

Standard Features

Boost function, operated by remote link.
Indication by amber LED.

Adjustable float and boost voltage levels to meet with
a range of battery types, static loads and operating
conditions. Standard calibrations are:-

BATTERY TYPE

FLOAT

VOLTAGE

(V DC)

BOOST

VOLTAGE

(VDC)

Lead acid (6 cells)

13.6

14.1

12 V

Ni-Cd (9 cells)

12.8

14.0

Ni-Cd (10 cells)

14.2

15.6

Lead acid (12 cells)

27.2

28.4

24 V

Ni-Cd (18 cells)

25.6

28.1

Ni-Cd (20 cells)

28.4

31.2

Adjustable current limit. Standard versions have a
10 Amp limit, but this may be adjusted downwards
where required (e.g. for lower capacity batteries).

Output short circuit protection.

Protection against reverse polarity battery connection
via fuse and red warning LED.

3 alarm monitoring circuits: 'charge fail', 'low battery
voltage' and 'high battery voltage', complete with
volt-free relay outputs and LED indicators. The low
battery voltage alarm features a fixed time delay of
approx. 60 secs. to inhibit the signalling of a fault
during normal battery loading (e.g. engine cranking).

Electrical connection of the battery, boost and charge
monitoring relays is via ¼" blade terminals. The AC supply
is connected through separately mounted screw terminals.

When ordering, please specify:-

a) Product type (S10 series)
b) Nominal output voltage (12 or 24 V DC)
c)

AC supply voltage (240 or 110 V)

d) Battery type (Lead-acid, or Ni-Cd and number of cells,

or special calibration requirements).

The Generator Controls Division of

R

M020301

Issue 5, revised 07/98

Catalogue section 75

Dimensions (mm)

Overall

Fixing Base

Connection

L

4

2

5 6

7

8

3

1

F1

S1012, 240V: 1.5A
110V: 3.15A
S1024, 240V: 3.15A
110V: 6.3A

F1, fuse type T, rating:

AC

supply

N

Boost
switch/timer

E

10

9

BCS

battery

charge

fail

high

battery

volts

low

battery

volts

+

Product Specification

Power supply:

operating voltages

240 V AC or 110 V AC (specify),

+/– 10%, 50/60 Hz.

Charging output:

nominal output voltage

see chart left

voltage stability

+/– 1% of nominal

current limit

1 – 10 Amps, factory set

current stability

+/– 2% of nominal

Relay outputs:

(ratings for resistive load)

charge fail and low battery volts

high battery volts

volt free SPNC contacts

volt free SPNO contacts

all rated 5 A @ 30 V DC

General:

operating temperature

–10 to +55

o

C

overall dimensions (h x l x d)

185 x 145 x 155 mm

weight

approx. 8.0 Kg

EMC emission/immunity

to EN50081-2/EN50082-2

Since 1939

Frank W. Murphy Manufacturer

PO Box 470248, Tulsa, Oklahoma 74147, USA

Tel: + 1 918 627 3550 Fax: + 1 918 664 6146

email: [email protected]

web: http://www.fwmurphy.com

Frank W. Murphy Southern Division

PO Box 1819, Rosenberg, Texas 77471, USA

Tel: + 1 281 342 0297 Fax: + 1 281 341 6006

email: [email protected]

Frank W. Murphy Ltd.

Incorporating

Modex Automation

Church Road, Laverstock, Salisbury U.K.

Tel: + 44 1722 410055 Fax + 44 1722 410088

Pour service en Français, tél: + 44 1722 410697

email: [email protected]

web: http://www.fwmurphy.co.uk

Murphek Pty. Ltd.

1620 Hume Highway, Campbellfield, Vic. 3061 Australia

Tel: + 61 3 9358 5555 Fax: + 61 3 9358 5558

email: [email protected]

Murphy Switch of California

PO Box 900788, Palmdale, California 93590, USA

Tel: + 1 805 272 4700 Fax: + 1 805 947 7570

email: [email protected]

web: http://www.murphyswitch.com

Murphy de Mexico S.A. de C.V.

Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje

San Luis Potosí, S.L.P. México 78384

Tel: + 52 48 206264 Fax: + 52 48 206336

email: [email protected]

Frank W. Murphy Pte, Ltd.

No. 2 Tuas South Street 2, Sprintecs Building

02-01/02, Singapore 637895

Tel: + 65 863 1398 Fax: + 65 863 0208

email: [email protected]

Frank W. Murphy Ltd. en France

Tel: +33 (1) 30 76 26 26 Fax: +33 (1) 30 76 39 89

Direct usine Tel: + 44 1722 410697

email: [email protected]