Harmer+Simmons Saft SM600 Modular 600 Watt switch mode power unit

Modular 600 Watt switch mode power unit designed specifically or PABX and small telecoms applications.
Rating from a single rectifier:12A output (48Vdc operation).

rectifier:

• E12A output (48Vdc operation)
• 25A output (24Vdc operation)

Key features
• Boost (for vented cells)
• Close voltage regulation
• Remote monitoring/alarms
• Convection cooled
• High reliability
• Horizontal 19″ rack mounting
• High power factor
• Sinusoidal input current demand
to EN610003-3-2 (on units with
pf >0.9, refer to table)
• CE marked (refer to table)

SPECIFICATION
Input

• AC input voltage Refer to table
• Frequency 45 – 65Hz
• Number of phases Single
• Power factor Refer to table
• Total harmonic distortion (THD) Refer to table
• Full load input current Refer to table

Output

• Output voltage Refer to table
• Output current Refer to table
• Current share Within 10% for two or three rectifiers in parallel
• Load and line regulation Less than 1% for operating input voltage range and load variation from zero to rated load
• Ripple and noise 2mV psophometric weighted, 50mV flat to CCITT
• Transient response Output voltage recovers to within regulation band with a load change 10% to100%
• or 100% to 10% within 4mS
• Temperature coefficient Less than ± 0.015%/°C
• Polarity Bipolar

Protection

• Output current limit Current characteristic is constant current between 100% rated load down to short circuit.
• Automatic recovery to normal operation on removal of abnormal load
• Output overvoltage Factory pre-set. Re-set by reconnection of AC input supply. When more than one unit is
• operating in parallel only faulty unit will shut down
• Inrush current Less than 20A peak at nominal mains
• EMC EN55022, Level B, FCC (Part 15 Subpart B)
• Safety BS 6301, IEC950, EN60950 EN41003

Environmental

• Operating temperature 0°C to +50°C inlet ambient
• Storage temperature -40°C to +80°C
• Humidity Up to 95% RH non-condensing
• Altitude 0 – 4000m operating – 0 – 12000m non-operating

Mechanical specification

• Dimensions Case A 220mm (3U) H, 80mm W, 375mm D
• Case B 88mm (2U) H, 482mm W, 260mm D
• Mounting Case A shelf/rack mounting – Case B 19″ rack mounting – (Refer to table)
• Weight 6.0kg