Reliable Surge Protection for PROFIBUS Systems

Description

MIDDLETOWN, Pa. -- Phoenix Contact’s newest surge protector provides reliable protection for PROFIBUS systems, even in the smallest spaces. At just 35mm high, the D-UFB-PB is ideal for use in the latest generation of Siemens PLCs.

The D-UFB-PB is designed for PROFIBUS-DP applications with data rates up to 12 mbps. Surge protection is integrated into the fieldbus connector, saving space. The PROFIBUS cable connects directly to the surge protector, so there is no need for an additional protective device to be installed to the PROFIBUS connector.

“Communication systems such as PROFIBUS are a critical part of a customer’s operation, and downtime is unacceptable,” said Ed Doherty, product marketing manager for Phoenix Contact’s TRABTECH surge product line. “Damaging surges can travel on signal lines, and we are pleased to offer a product that provides ease of installation and best-in-class surge protection.”

The nine-position D-SUB plug combines a reliable surge protection circuit with an easy-to-install screw clamp terminal block, color coded for termination of PROFIBUS cables. The termination resistor is easily activated with a slide switch at the connector, saving installation and start-up time.

Phoenix Contact is an independent subsidiary of Phoenix Contact GmbH & Co. KG of Blomberg, Germany, which operates 40 subsidiaries around the globe and employs more than 7,500 people. Phoenix Contact has implemented and maintains a Quality, Environmental and Occupational Health and Safety Management System that is registered to: ISO - 9001:2000 (Quality Management System), ISO - 14001:2004 (Environmental Management System) and OHSAS - 18001:1999 (Occupational Health & Safety System).

Specs

• Housing material ABS, metal-plated • Color silver • Standards for air and creepage distances IEC 60664-1: 1992-10 • DIN VDE 0110-1 • Surge voltage category II • Pollution degree 2 • Total surge current (8/20) µs 700 A • Ambient temperature (operation) -20 °C ... 75 °C • Ambient temperature (storage/transport) -20 °C ... 75 °C • Mounting type Direct assembly on the device interface • Design Connecting plug • Number of positions 4 • Degree of protection IP40 • Direction of action Line-Line & Line-Earth Ground • Width 44.50 mm • Height 36.00 mm • Length 56.40 mm • Protective circuit • IEC category C1 • C3 • B2 • VDE requirement class C1 • C3 • B2 • Arrester rated voltage UC 5.2 V DC • Arrester rated voltage UC (Core-Core) 5.2 V DC • Arrester rated voltage UC (Core-Earth) 5.2 V DC • Nominal current IN 250 mA (25°C) • Operating effective current IC at UC ≤ 100 µA • Discharge current to PE at UC ≤ 100 µA • Nominal discharge surge current In (8/20) µs (Core-Core) 350 A • Nominal discharge surge current In (8/20) µs (Core-Earth) 350 A • Total surge current (8/20) µs 700 A • Max. discharge surge current Imax (8/20) µs maximum (Core-Core) 350 A • Max. discharge surge current Imax (8/20) µs maximum (Core-Earth) 350 A • Output voltage limitation at 1 kV/µs (Core-Core) spike ≤ 20 V • Output voltage limitation at 1 kV/µs (Core-Earth) spike ≤ 20 V • Output voltage limitation at 1 kV/µs (Core-Core) static ≤ 14 V • Output voltage limitation at 1 kV/µs (Core-Earth) static ≤ 14 V • Output voltage limitation (10/700) µs (Core-Core) ≤ 15 V (Uo=4 kV) • Output voltage limitation (10/700) µs (Core-Earth) ≤ 15 V (Uo=4 kV) • Residual voltage at In, (conductor-conductor) ≤ 25 V • Residual voltage at In, (conductor-ground) ≤ 25 V • Protection level UP (Core-Core) ≤ 25 V (C1 (500 V/250 A)) • ≤ 15 V (C3 (25 A)) • ≤ 15 V (B2 (4 kV/100 A)) • Protection level UP (Core-Earth) ≤ 25 V (C1 (500 V/250 A)) • ≤ 15 V (C3 (25 A)) • ≤ 15 V (B2 (4 kV/100 A)) • Response time tA (Core-Core) ≤ 500 ns • Response time tA (Core-Earth) ≤ 500 ns • Cut-off frequency fg (3 dB), sym. in 100 Ohm system Typ. 70 MHz • Inductivity in series 0.11 µH • Surge carrying capacity in acc. with IEC 61643-21 (Core-Core) C1 (500 V / 250 A) • C3 (2 kV / 25 A) • Surge carrying capacity in acc. with IEC 61643-21 (Core-Earth) C1 (500 A/250 A) • C3 (2 kV/25 A) • Connection data • Type of connection Screw connection & D-SUB-9 • Connection type IN Screw terminal blocks • Connection type OUT D-SUB-9 connector • Connection method 2-wire (shielded) • Screw thread M2 • Tightening torque, min 0.25 Nm • Stripping length 5 mm • Conductor cross section stranded min. 0.14 mm² • Conductor cross section stranded max. 1.5 mm² • Conductor cross section solid min. 0.14 mm² • Conductor cross section solid max. 1.5 mm² • Conductor cross section AWG/kcmil min. 26 • Conductor cross section AWG/kcmil max 16 • Connection, equipotential bonding • Type of connection PVC Litz wire, 1.0 mm², 0.5 m length • Connection, protective circuit • Standards/regulations IEC 61643-21 • DIN EN 61643-21
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