Description

Surge protection with integrated status indicator and knife disconnection for a 2-wire floating signal circuit, e.g., 0(4) … 20 mA current loop, Ex e approval for zone 2, HART-compatible.

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Product properties

IEC test classification	C1
		C2
		C3
		D1
Type	DIN rail module, one-piece
Product type	Surge protection for MCR technology
Wire pairs per module	1
Insulation characteristics
Overvoltage category	III
Pollution degree	2

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Connection data

Connection method	Push-in connection
Conductor cross section flexible	0.2 mm² … 2.5 mm²
Conductor cross section solid	0.2 mm² … 4 mm²
Conductor cross section AWG	24 … 12

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Ex data

Maximum input current	600 mA (T4 / ≤ 30 °C)
		500 mA (T4 / > 30 °C … ≤ 50 °C)
		400 mA (T4 / > 50 °C … ≤ 70 °C)
Maximum input voltage	30 V DC
Altitude	≤ 2000 m (amsl (above mean sea level))
Ambient temperature (operation)	-40 °C … 70 °C (T4)

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Dimensions

Dimensional drawing
Width	6.2 mm +0.1 mm
Height	105.8 mm
Depth	83.5 mm (incl. DIN rail 7.5 mm)

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Material specifications

Color	traffic grey A RAL 7042
Flammability rating according to UL 94	V-0
Insulating material	PBT
Housing material	PBT

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Mechanical properties

Mechanical data
Open side panel	No

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Protective circuit

Direction of action	Line-Line & Line-Signal Ground/Shield & optional Signal Ground/Shield-Earth Ground
Maximum continuous voltage UC	30 V DC
		21 V AC
Rated current	600 mA (40 °C)
Operating effective current IC at UC	≤ 5 µA
Residual current IPE	≤ 1 µA
Nominal discharge current In (8/20) µs (line-line)	5 kA
Nominal discharge surge current In (8/20) µs (Core-Earth)	5 kA
Pulse discharge current Iimp (10/350) µs (line-line)	0.5 kA
Pulse discharge current Iimp (10/350) µs (line-earth)	0.5 kA
Total discharge current Itotal (8/20) µs	10 kA
Voltage protection level Up (line-line)	≤ 55 V (C1 – 1 kV / 500 A)
		≤ 65 V (C2 – 10 kV / 5 kA)
		≤ 50 V (C3 – 25 A)
		≤ 55 V (C3 – 100 A)
Voltage protection level Up (line-earth)	≤ 750 V (C1 – 1 kV / 500 A)
		≤ 750 V (C2 – 10 kV / 5 kA)
		≤ 700 V (C3 – 25 A)
		≤ 750 V (C3 – 100 A)
Voltage protection level Up static (line-line)	≤ 50 V (C1 – 1 kV / 500 A)
		≤ 65 V (C2 – 10 kV / 5 kA)
Voltage protection level Up static (line-earth)	≤ 750 V (C1 – 1 kV / 500 A)
		≤ 750 V (C2 – 10 kV / 5 kA)
Response time tA (line-line)	≤ 1 ns
Response time tA (line-earth)	≤ 100 ns
Input attenuation aE, sym.	typ. 0.3 dB (≤ 250 kHz / 150 Ω)
Cut-off frequency fg (3 dB), sym. in 150 Ω system	typ. 940 kHz
Capacity (Core-Core)	typ. 2.2 nF
Resistance per path	1.65 Ω ±20 %
Surge protection fault message	optical
Max. required back-up fuse	630 mA (FF)
Impulse durability (line-line)	C1 – 1 kV / 500 A
		C2 – 10 kV / 5 kA
		C3 – 100 A
Impulse durability (line-earth)	C1 – 1 kV / 500 A
		C2 – 10 kV / 5 kA
		C3 – 100 A
		D1 – 500 A
Pulse reset time (line-line)	≤ 700 ms
Pulse reset time (line-earth)	≤ 1500 ms
Additional technical data
Max. total discharge current I total max (8/20) µs	20 kA (1x – non Ex)

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Environmental and real-life conditions

Ambient conditions
Degree of protection	IP20
Ambient temperature (operation)	-40 °C … 85 °C
Ambient temperature (storage/transport)	-40 °C … 85 °C
Altitude	≤ 4000 m (amsl (above mean sea level))
Permissible humidity (operation)	5 % … 95 %

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Standards and regulations

Standards/specifications	IEC 61643-21
EN 61643-21
Standards/specifications	EN 61643-21
Standards/specifications	IEC 60079-0
Standards/specifications	IEC 60079-7
Standards/specifications	EN IEC 60079-0
Standards/specifications	EN IEC 60079-7

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Mounting

Mounting type

DIN rail: TH 35 – 7.5 mm

Space-saving and cost-saving with a narrow overall width of just 6 mm|Continuous monitoring of protective devices, plus mechanical status indicator with optional remote signaling|Finding the right product for all possible requirements in MCR applications is easy, thanks to the complete range of products with customized features|Signal circuits easily interrupted for maintenance work, thanks to vertical knife disconnection