Redundancy in square CB scheme Data sheet Input: AC 230V/115V, DC 240-375 V Output: 24 V/10 A High overload current, no switch-off N+1 redundancy, RDY relay contact Robust mechanics and EMC Note: At DC input, always leave the switch in the 230V position. Input current Input Input voltage < 6 A (switch in 115V position) < 2.8 A (switch in 230V position) DCin at open output 8 mA (preserves battery sources) Inrush current Unit is internally fused (fuse not accessible). External fuse not necessary, but recommended (common 10A, B-type 'circuit-breaker' switch used anyway to fuse the input lines). Transient handling Transient resistance acc. to VDE 0160 / W2 (750 V / 1.3 ms), for all load conditions. Hold-up time Rated output voltage For balanced current sharing during parallel operation: Soft characteristic (25.2 V DC ±2% at no-load, 24 V DC ±0.5% at nominal load, almost linear characteristic curve) Output noise suppression Radiated EMI values below EN50081-1, even when using long, unscreened output cables. Ambient temperature range Tamb Operation: 0°C...+70°C (>60°C: Derating) Storage: -25°C...+85°C Rated continuous loading with convection cooling • Tamb=0°C - 60°C 24 V / 10 A • Tamb=0°C - 45°C 12 A short-term also at 60 °C Output is protected against short circuit, open circuit and overload Derating Voltage regulation better than 2% Vout overall Ripple / Noise < 30 mVPP, (20 MHz bandw., 50 Ω measurem.) Overvolt. protection Parallel operation yes, current sharing via soft characteristic (see diagram) Front panel indicator RDY relay contact • Type • closes • opens • Electrical isolation • Contact rating normally open contact when output voltage > 22.1V ±4% when output voltage < 19.8V ±4% 500V DC to output voltage 1A at 28V DC Life cycle (electrolytics) The unit exclusively uses longlife electrolytics specified for +105°C (cf. ’The SilverLine’, p.2). Start / Overload Behaviour Start-up delay Rise time Overload Behaviour • Special PULS Overload Design (see diagram overleaf) • 20% power boost – no disconnection, no hiccup if overloaded – high overload current (up to 1.6 INom), Vout is gradually reduced with increasing current. – 12A short-term, at 45°C or forced cooling even continuous For further information see data sheets „The SilverLine“, „SilverLine Family Branches“ and mechanics data sheet Advantages: • High short-circuit current, giving large ’start-up window’: unit starts reliably even with awkward loads (DC-DC converters, motors). • No ’sticking’ such as can occur with fold-back characteristics • Secondary fuses operate reliably Order information Order number N+1 redundancy* Basic version without redundancy* Safety Cover* Screw mounting set, two needed per unit

Data sheet Output characteristic (min.) Construction / Mechanics* Design advantages: • Input and output pluggable by means of Combicon® plug connector • Ensure strain relief of the plug connectors when installing the unit. 28 Tamb = 60°C / 45°C / 25°C / 0°C 24 Output voltage Vout [V] Housing dimensions and Weight 120 mm x 124 mm x 102 mm (+ DIN Rail) • WxHxD above/below 25 mm recommended • Free space for ventilation left/right 15 mm recommended • Weight 980 g Further information Further information, especially about • EMC • Connections • Safety, Approvals • Mechanics and Mounting see page 2 of...