Phoenix Contact develops terminal blocks, power supplies, relays, connectors, signal conditioners, controllers & PLCs, I/O systems, Industrial Ethernet, controller system cabling, PCB terminal blocks & connectors, and surge suppression.

Commercial Data

Item number	2906738
Packing unit	1 pc
Minimum order quantity	1 pc
Product key	CL2161
Catalog page	Page 116 (C-4-2019)
GTIN	4055626134703
Weight per piece (including packing)	57 g
Weight per piece (excluding packing)	54.8 g
Customs tariff number	85363010
Country of origin	DE

Product Properties

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

Electrical Properties

Nominal voltage U_N	24 V DC

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)
Ambient temperature (operation)	-40 °C … 70 °C (T4)

Connection Data

Connection method	Screw connection
Screw thread	M3
Tightening torque	0.5 Nm … 0.6 Nm
Conductor cross section flexible	0.2 mm² … 2.5 mm²
Conductor cross section rigid	0.2 mm² … 4 mm²
Conductor cross section AWG	24 … 12

Dimension

Width	6.2 mm +0.1 mm
Height	105.8 mm
Depth	100 mm (incl. DIN rail 7.5 mm)

Material Specifications

Color (Base element)	gray (RAL 7042)
Color (Male connector)	light gray (RAL 7035)
Flammability rating according to UL 94	V-0
Insulating material	PBT
Housing material	PBT

Mechanical Properties

Mechanical data
Open side panel	No

Protective Circuit

Direction of action	Line-Line & Line-Signal Ground/Shield & optional Signal Ground/Shield-Earth Ground
Maximum continuous voltage U_C	30 V DC
Maximum continuous voltage U_C	21 V AC
Rated current	600 mA (56 °C)
Operating effective current I_C at U_C	≤ 5 µA
Residual current I_PE	≤ 1 µA
Nominal discharge current I_n (8/20) µs (line-line)	5 kA
Nominal discharge current I_n (8/20) µs (line-ground)	5 kA
Pulse discharge current I_imp (10/350) µs (line-line)	0.5 kA
Pulse discharge current I_imp (10/350) µs (line-earth)	0.5 kA
Total discharge current I_total (8/20) µs	10 kA
Voltage protection level U_p (line-line)	≤ 200 V (C1 – 1 kV / 500 A)
	≤ 320 V (C2 – 10 kV / 5 kA)
	≤ 50 V (C3 – 25 A)
	≤ 55 V (C3 – 100 A)
Voltage protection level U_p (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 U_p static (line-line)	≤ 50 V (C1 – 1 kV / 500 A)
Voltage protection level U_p static (line-line)	≤ 120 V (C2 – 10 kV / 5 kA)
Voltage protection level U_p static (line-earth)	≤ 750 V (C1 – 1 kV / 500 A)
Voltage protection level U_p static (line-earth)	≤ 750 V (C2 – 10 kV / 5 kA)
Response time t_A (line-line)	≤ 1 ns
Response time t_A (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)

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	≤ 6000 m (amsl)
Permissible humidity (operation)	5 % … 95 %

Approvals

Conformity/Approvals
UL, USA / Canada	Class I, Div. 2, Groups A, B, C, D T4A

Standards And Regulations

Standards/specifications	IEC 61643-21
Note	2000 + corrigendum 2001 + A1:2008, modified + A2:2012
EN 61643-21
Standards/specifications	EN 61643-21
Note	2001 + A1:2009 + A2:2013
Standards/specifications	IEC 60079-0
Note	2017
Standards/specifications	IEC 60079-7
Note	2017
Standards/specifications	EN IEC 60079-0
Note	2018
Standards/specifications	EN IEC 60079-7
Note	2015 + A1:2018