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BN-20 Uninterruptible Power Supply System
48(24) V DC uninterruptible supply system for DT-10TS remote terminal and switching devices, with six DC feeders.
The BN-20 supply system provides uninterrupted 48(24) V DC supply for the DT-10TS remote terminal and switching devices. It is installed in a 600 x 600 x 350 mm cabinet or on a plate with separate batteries, while NAP-2 supervises the batteries and prevents deep discharge.
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Six DC feeders
Automatic circuit breakers with auxiliary contacts provide feeder protection and remote signalling.
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NAP-2 battery supervision
The NAP-2 unit signals low voltage and disconnects the batteries through a contactor at the safety threshold.
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Cabinet or mounting-plate version
The system is intended for a 600 x 600 x 350 mm cabinet or a mounting plate with separate batteries.
- Voltage
- 230 V AC +10% / -15%, 50 Hz
- Protection
- 6 A automatic circuit breaker, EMI filter
- Voltage with 230 V AC present
- 54.6(27.3) V ±1%
- Battery voltage range
- 42-52(21-26) V
- Ripple
- <0.5%
- Output current
- 30(50) A
- Output power
- min. 1500(1200) W
- Batteries
- 4(2) blocks of 12 V, 27 Ah, VRLA/dryfit
- Number of feeders
- 6
- Temperature range
- -20 to +50 °C
- Dimensions
- 600 x 600 x 350 mm cabinet or 335 x 355 x 110 mm plate
Input
48(24) V DC output
Battery and distribution
General
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