BC70-LS

Universal Switchmode Power Supply Charger

The BC series of switching power supply has been designed to operate DC systems and systems where battery back-up is required. The case design allows for 35mm Din rail mounting.

Features

• Power supply suitable for battery charging
• Universal input 90 - 265 vac
• Temperature compensated battery charger
• Plug and socket connectors on input and output
• Over current and short circuit protected
• Power fail alarm
• Auto resetting low voltage load shed for battery or loads
• Adjustable output / charging voltage
• Din rail mounting
• Class 1 Division 2 hazardous location certified
• Full conformal coating to protect against shock, vibration, and environmental conditions

Figure 1: BC70-LS Connection Diagram

NOTE: in the diagram above, the battery connection may be switched with the load connection to prevent the battery from discharging through the power supply when load shed is active.

Specifications

		BC70-LS
Input Voltage range		90 - 265 Vac, 50-60 Hz
Input Voltage frequency		47-63 Hz
Recommended input circuit breaker or fuse, slow blow type		4.0A
Input Protection Fuse		4A (non-replaceable)
Inrush Protection		thermistor
Over voltage		varistor
Output	12 Volt model	12 - 13.9 Vdc adjustable
	24 Volt model	24 - 27.8 Vdc adjustable
Current Limit protection	12 Volt model	5 amp
	24 Volt Model	3 amp
Short Circuit Protection		current limit @ max, current mode operation
Regulation	load 0-100%	2.4% max
Ripple and noise	(200MHz BW)	70 mV P-P
Overload protection		Electronic overload protection
Over temperature protection		Turn off on over temperature, auto reset
Power fail alarm signal (A)	12 Volt model	9-12 volt (low signal on power fail)
	24 Volt model	22-25 volt (low signal on power fail)
Low voltage disconnect (LS+)	12 Volt model	11.2 Volt
	24 Volt model	22.5 Volt
Temperature compensation	12 Volt model	13.6 volt @ 25°C, 2.4V/c @ -18°C, 2.2V/c @ 40°C
	24 Volt model	26.7 volt @ 25°C
Cooling		convection
Operating temperature		-40 - +60 °C
Enclosure		Aluminum chassis, powder coated steel cover IP20
Mounting		Din rail
Certification		QPS ExnA llB, Class 1 Division 2 GP. C,D SA C22.2 NO. 213-87M(99) CAN/CSA E60079-15:02 CSA C22.2 NO. 107.1-95 CEC (2006)

Models

Model	Power	Output Voltage	Output Current	T. Comp.	LVD	RoHS
BC70-LS24	70W	24 Vdc	3.0 A	yes	yes	yes
BC70-LS12	70W	12 Vdc	5.0 A	yes	yes	yes

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