Analog input modules allow the connection of the PLC to analog signals of the process. They are suitable for connection of voltage transmitters and current transmitters, thermo elements, resistors and resistance thermometers.

Siemens Analog Input Modules SIMATIC S7-300 Product Specifications:

Article number	6ES7331-7KF02-0AB0	6ES7331-7HF01-0AB0	6ES7331-1KF02-0AB0	6ES7331-7KB02-0AB0
	SM331, 8AI, 9/12/14Bit	SM331, 8AI, 14BIT, 0,052MS/channel	SM331, 8AI, 13bit	SM331, 2AI, 9/12/14Bit
Supply voltage
Load voltage L+
● Rated value (DC)	24 V	24 V		24 V
● Reverse polarity protection	Yes	Yes		Yes
Input current
from load voltage L+ (without load), max.	30 mA	50 mA		30 mA
from backplane bus 5 V DC, max.	50 mA	100 mA	90 mA	50 mA
Power loss
Power loss, typ.	1 W	1.5 W	0.4 W	1 W
Analog inputs
Number of analog inputs	8	8	8	2
● For resistance measurement	4		8	1
permissible input voltage for voltage input (destruction limit), max.	20 V; continuous; 75 V for max. 1 s (mark to space ratio 1:20)	20 V; 20 V DC permanent, 75 V DC for max. 1 s (duty factor 1:20)	30 V; 12 V continuous, 30 V for max. 1 s	20 V; continuous; 75 V for max. 1 s (mark to space ratio 1:20)
permissible input current for current input (destruction limit), max.	40 mA	40 mA	40 mA	40 mA
Constant measurement current for resistance-type transmitter, typ.	1.67 mA			1.67 mA
Input ranges
● Voltage	Yes	Yes	Yes	Yes
● Current	Yes	Yes	Yes	Yes
● Thermocouple	Yes	No	No	Yes
● Resistance thermometer	Yes	No	Yes	Yes
● Resistance	Yes	No	Yes	Yes
Input ranges (rated values), voltages
● 0 to +10 V	No	No	Yes	No
— Input resistance (0 to 10 V)			100 kΩ
● 1 V to 5 V	Yes	Yes	Yes	Yes
— Input resistance (1 V to 5 V)	100 kΩ	100 kΩ	100 kΩ	100 kΩ
● 1 V to 10 V	No		No	No
● -1 V to +1 V	Yes	Yes	Yes	Yes
— Input resistance (-1 V to +1 V)	10 MΩ	10 MΩ	100 kΩ	10 MΩ
● -10 V to +10 V	Yes	Yes	Yes	Yes
— Input resistance (-10 V to +10 V)	100 kΩ	100 kΩ	100 kΩ	100 kΩ
● -2.5 V to +2.5 V	Yes		No	Yes
— Input resistance (-2.5 V to +2.5 V)	100 kΩ			100 kΩ
● -250 mV to +250 mV	Yes		No	Yes
— Input resistance (-250 mV to +250 mV)	10 MΩ			10 MΩ
● -5 V to +5 V	Yes	Yes	Yes	Yes
— Input resistance (-5 V to +5 V)	100 kΩ	100 kΩ	100 kΩ	100 kΩ
● -50 mV to +50 mV	No		Yes	No
— Input resistance (-50 mV to +50 mV)			100 kΩ
● -500 mV to +500 mV	Yes	Yes	Yes	Yes
— Input resistance (-500 mV to +500 mV)	10 MΩ		100 kΩ	10 MΩ
● -80 mV to +80 mV	Yes	Yes	No	Yes
— Input resistance (-80 mV to +80 mV)	10 MΩ			10 MΩ
Input ranges (rated values), currents
● 0 to 20 mA	Yes	Yes	Yes	Yes
— Input resistance (0 to 20 mA)	25 Ω	50 Ω	100 Ω	25 Ω
● -10 mA to +10 mA	Yes		No	Yes
— Input resistance (-10 mA to +10 mA)	25 Ω			25 Ω
● -20 mA to +20 mA	Yes	Yes	Yes	Yes
— Input resistance (-20 mA to +20 mA)	25 Ω	50 Ω	100 Ω	25 Ω
● -3.2 mA to +3.2 mA	Yes		No	Yes
— Input resistance (-3.2 mA to +3.2 mA)	25 Ω			25 Ω
● 4 mA to 20 mA	Yes	Yes	Yes	Yes
— Input resistance (4 mA to 20 mA)	25 Ω	50 Ω	100 Ω	25 Ω
Input ranges (rated values), thermocouples
● Type B	No		No	No
● Type C	No		No
● Type E	Yes		No	Yes
— Input resistance (Type E)	10 MΩ			10 MΩ
● Type J	Yes		No	Yes
— Input resistance (type J)	10 MΩ			10 MΩ
● Type K	Yes		No	Yes
— Input resistance (Type K)	10 MΩ			10 MΩ
● Type L	Yes		No	No
— Input resistance (Type L)	10 MΩ
● Type N	Yes		No	Yes
— Input resistance (Type N)	10 MΩ			10 MΩ
● Type R	No		No	No
● Type S	No		No	No
● Type T	No		No	No
● Type U	No		No	No
● Type TXK/TXK(L) to GOST	No		No	No
Input ranges (rated values), resistance thermometer
● Cu 10	No		No	No
● Ni 100	Yes; Standard		Yes; Standard/climate	Yes
— Input resistance (Ni 100)	10 MΩ		100 MΩ	10 MΩ; Standard
● Ni 1000	No		Yes	No
— Input resistance (Ni 1000)			100 MΩ
● LG-Ni 1000	No		Yes; Standard/climate	No
— Input resistance (LG-Ni 1000)			100 MΩ
● Ni 120	No		No	No
● Ni 200	No		No	No
● Ni 500	No		No	No
● Pt 100	Yes; Standard		Yes; Standard/climate	Yes
— Input resistance (Pt 100)	10 MΩ		100 MΩ	10 kΩ; Standard
● Pt 1000	No		No	No
● Pt 200	No		No	No
● Pt 500	No		No	No
Input ranges (rated values), resistors
● 0 to 150 ohms	Yes		No	Yes
— Input resistance (0 to 150 ohms)	10 MΩ			10 MΩ
● 0 to 300 ohms	Yes		No	Yes
— Input resistance (0 to 300 ohms)	10 MΩ			10 MΩ
● 0 to 600 ohms	Yes		Yes	Yes
— Input resistance (0 to 600 ohms)	10 MΩ		100 MΩ	10 MΩ
● 0 to 6000 ohms	No		Yes	No
— Input resistance (0 to 6000 ohms)			100 MΩ
Thermocouple (TC)
Temperature compensation
— parameterizable	Yes		No	Yes
— internal temperature compensation	Yes		No	Yes
— external temperature compensation with compensations socket	Yes		No	Yes
— for definable comparison point temperature	Yes			Yes
Characteristic linearization
● parameterizable	Yes		Yes	Yes
— for thermocouples	Type E, J, K, L, N		No	Type E, J, K, L, N
— for resistance thermometer	Pt100 (standard, climatic range), Ni100 (standard, climatic range)		yes; Pt100 standard/air con.; Ni100 standard/air con.; Ni1000 standard/air con.; LG-Ni1000 standard/air con.	Pt100 (standard, climatic range), Ni100 (standard, climatic range)
Cable length
● shielded, max.	200 m; 50 m at 80 mV and thermocouples	200 m	200 m; max. 50 m at 50 mV	200 m; 50 m at 80 mV and thermocouples
Analog value generation for the inputs
Integration and conversion time/resolution per channel
● Resolution with overrange (bit including sign), max.	15 bit; Unipolar: 9/12/12/14 bit; bipolar: 9 bit + sign/12 bit + sign/12 bit + sign/14 bit + sign	14 bit; Unipolar: 14 bit; bipolar: 13 bit + sign	13 bit	15 bit; Unipolar: 9/12/12/14 bit; bipolar: 9 bit + sign/12 bit + sign/12 bit + sign/14 bit + sign
● Integration time, parameterizable	Yes; 2,5 / 16,67 / 20 / 100 ms	Yes	Yes; 60 / 50 ms	Yes; 2,5 / 16,67 / 20 / 100 ms
● Basic conversion time (ms)	3 / 17 / 22 / 102 ms	52 µs per channel	66 / 55 ms	3 / 17 / 22 / 102 ms
● Interference voltage suppression for interference frequency f1 in Hz	400 / 60 / 50 / 10 Hz	none / 400 / 60 / 50 Hz	50 / 60 Hz	400 / 60 / 50 / 10 Hz
Encoder
Connection of signal encoders
● for voltage measurement	Yes		Yes	Yes
● for current measurement as 2-wire transducer	Yes	Yes	Yes; with external supply	Yes
● for current measurement as 4-wire transducer	Yes	Yes	Yes	Yes
● for resistance measurement with two-wire connection	Yes		Yes	Yes
● for resistance measurement with three-wire connection	Yes		Yes	Yes
● for resistance measurement with four-wire connection	Yes		Yes	Yes
Errors/accuracies
Operational error limit in overall temperature range
● Voltage, relative to input range, (+/-)	1 %; ±1% (80 mV); ±0.6% (250 mV to 1 000 mV); ±0.8% (2.5 V to 10 V)	0.4 %	0.6 %; ±0.6 % (±5 V, 10 V, 1 to 5 V, 0 to 10 V); ±0.5 % (±50 mV, 500 mV, 1 V)	1 %; ±1% (80 mV); ±0.6% (250 mV to 1 000 mV); ±0.8% (2.5 V to 10 V)
● Current, relative to input range, (+/-)	0.7 %; From 3.2 to 20 mA	0.3 %	0.5 %; ±20 mA, 0 to 20 mA, 4 to 20 mA	0.7 %; From 3.2 to 20 mA
● Resistance, relative to input range, (+/-)	0.7 %; 150, 300, 600 Ohm		0.5 %; 0 to 6 kohms, 0 to 600 kohms	0.7 %; 150, 300, 600 Ohm
● Resistance thermometer, relative to input range, (+/-)	0.7 %; ±0.7 % (Pt100/ Ni100); ±0.8 % (Pt100 climate)		1 Kelvin (Pt100, Ni100, climatic; Ni1000, LG-Ni1000, standard; Ni1000, LG-Ni1000, climatic); 1.2 Kelvin (Pt100, Ni100, standard)	0.7 %; ±0.7 % (Pt100/ Ni100); ±0.8 % (Pt100 climate)
● Thermocouple, relative to input range, (+/-)	1.1 %; Type E, J, K, L, N			1.1 %; Type E, J, K, L, N
Basic error limit (operational limit at 25 °C)
● Voltage, relative to input range, (+/-)	0.6 %; ±0.4 % (250 mV to 1 000 mV); ±0.6 % (2.5 mV to 10 mV); ±0.7 % (80 mV)	0.25 %	0.4 %; 0.4% (±5 V, 10 V, 1 to 5 V, 0 to 10 V); 0.3% (±50 mV, 500 mV, 1 V)	0.6 %; ±0.6% (80 mV, 2.5 V to 10 V); ±0.4% (250 mV to 1 000 mV)
● Current, relative to input range, (+/-)	0.5 %; 3.2 to 20 mA	0.2 %	0.3 %; ±20 mA, 0 to 20 mA, 4 to 20 mA	0.5 %; 3.2 to 20 mA
● Resistance, relative to input range, (+/-)	0.5 %; 150, 300, 600 Ohm		0.3 %; 0 to 6 kohms, 0 to 600 kohms	0.5 %; 150, 300, 600 Ohm
● Resistance thermometer, relative to input range, (+/-)	0.6 %; ±0.5% (Pt100/ Ni100), ±0.6% (Pt100 climate)		1 Kelvin (Pt100, Ni100, standard); 0.8 Kelvin (Pt100, Ni100, climatic; Ni1000, LG-Ni1000, standard; Ni1000, LG-Ni1000, climatic)	0.6 %; ±0.5% (Pt100/ Ni100), ±0.6% (Pt100 climate)
● Thermocouple, relative to input range, (+/-)	0.7 %; Type E, N, J, K, L			0.7 %; Type E, N, J, K, L
Interrupts/diagnostics/status information
Diagnostics function	Yes; Parameterizable	Yes	No	Yes; Parameterizable
Alarms
● Diagnostic alarm	Yes; Parameterizable, channels 0 and 2	Yes; Parameterizable	No	Yes
● Limit value alarm	Yes; Parameterizable	Yes; Parameterizable, channels 0 and 2	No	Yes; Parameterizable, channel 0
Diagnoses
● Diagnostic information readable	Yes	Yes	No	Yes
Diagnostics indication LED
● Group error SF (red)	Yes	Yes	No	Yes
Potential separation
Potential separation analog inputs
● between the channels	No	No	No	No
● between the channels and backplane bus	Yes	Yes	Yes	Yes
● between the channels and the power supply of the electronics	Yes	Yes		Yes; Not for 2-wire transmitters
Isolation
Isolation tested with	500 V DC	500 V DC	500 V DC	500 V DC
connection method / header
required front connector	20-pin	20-pin	40-pin	20-pin
Dimensions
Width	40 mm	40 mm	40 mm	40 mm
Height	125 mm	125 mm	125 mm	125 mm
Depth	117 mm	117 mm	117 mm	120 mm
Weights
Weight, approx.	250 g	230 g	250 g	250 g

Article number	6ES7331-7PF01-0AB0	6ES7331-7PF11-0AB0	6ES7331-7PE10-0AB0	6ES7331-7NF00-0AB0	6ES7331-7NF10-0AB0
	SM331, 8AI, resistor, PT100/200/1000, .	SM331, 8AI, 16BIT, Thermocouples	SM331, 6AI, 16bit, Thermocouple	SM331,8AI,+/-5/10V,1-5V,+/-20mA,0/4-20mA	SM331,8AI,+/-5/10V,1-5V,+/-20mA,0/4-20mA
Supply voltage
Load voltage L+
● Rated value (DC)	24 V	24 V	24 V		24 V
● Reverse polarity protection	Yes	Yes	Yes		Yes
Input current
from load voltage L+ (without load), max.	240 mA	240 mA	150 mA		200 mA
from backplane bus 5 V DC, max.	100 mA	100 mA	100 mA	130 mA	100 mA
Power loss
Power loss, typ.	4.6 W	3 W	2.2 W	0.6 W	3 W
Analog inputs
Number of analog inputs	8	8	6	8	8
● For resistance measurement	8
permissible input voltage for voltage input (destruction limit), max.	75 V; 35 V continuous, 75 V for max. 1 s (mark to space ratio 1:20)	75 V; 20 V DC permanent, 75 V DC for max. 1 s (duty factor 1:20)	35 V; 35 V continuous, 75 V for max. 1 s (mark to space ratio 1:20)	50 V; Permanent	75 V; 35 V continuous, 75 V for max. 1 s (mark to space ratio 1:20)
permissible input current for current input (destruction limit), max.				32 mA	40 mA
Constant measurement current for resistance-type transmitter, typ.		0.7 mA	0.7 mA
Input ranges
● Voltage	No	No	Yes	Yes	Yes
● Current	No	No	No	Yes	Yes
● Thermocouple	No	Yes	Yes	No	No
● Resistance thermometer	Yes	No	No	No	No
● Resistance	Yes	No	No	No	No
Input ranges (rated values), voltages
● 0 to +10 V	No	No	No	No	No
● 1 V to 5 V	No	No	No	Yes	Yes
— Input resistance (1 V to 5 V)				2 MΩ	10 MΩ
● 1 V to 10 V	No	No	No	No	No
● -1 V to +1 V	No	No	Yes	No	No
— Input resistance (-1 V to +1 V)			10 MΩ
● -10 V to +10 V	No	No	No	Yes	Yes
— Input resistance (-10 V to +10 V)				2 MΩ	10 MΩ
● -2.5 V to +2.5 V	No	No	No	No	No
● -250 mV to +250 mV	No	No	Yes	No	No
— Input resistance (-250 mV to +250 mV)			10 MΩ
● -5 V to +5 V	No	No	No	Yes	Yes
— Input resistance (-5 V to +5 V)				2 MΩ	10 MΩ
● -50 mV to +50 mV	No	No	Yes	No	No
— Input resistance (-50 mV to +50 mV)			10 MΩ
● -500 mV to +500 mV	No	No	Yes	No	No
— Input resistance (-500 mV to +500 mV)			10 MΩ
● -80 mV to +80 mV	No	No	Yes	No	No
— Input resistance (-80 mV to +80 mV)			10 MΩ
Input ranges (rated values), currents
● 0 to 20 mA	No	No	No	Yes	Yes
— Input resistance (0 to 20 mA)				250 Ω	250 Ω
● -10 mA to +10 mA	No	No	No	No	No
● -20 mA to +20 mA	No	No	No	Yes	Yes
— Input resistance (-20 mA to +20 mA)				250 Ω	250 Ω
● -3.2 mA to +3.2 mA	No	No	No	No	No
● 4 mA to 20 mA	No	No	No	Yes	Yes
— Input resistance (4 mA to 20 mA)				250 Ω	250 Ω
Input ranges (rated values), thermocouples
● Type B	No	Yes	Yes	No	No
— Input resistance (Type B)			10 MΩ
● Type C	No	Yes	Yes	No	No
— Input resistance (Type C)			10 MΩ
● Type E	No	Yes	Yes	No	No
— Input resistance (Type E)			10 MΩ
● Type J	No	Yes	Yes	No	No
— Input resistance (type J)			10 MΩ
● Type K	No	Yes	Yes	No	No
— Input resistance (Type K)			10 MΩ
● Type L	No	Yes	Yes	No	No
— Input resistance (Type L)			10 MΩ
● Type N	No	Yes	Yes	No	No
— Input resistance (Type N)			10 MΩ
● Type R	No	Yes	Yes	No	No
— Input resistance (Type R)			10 MΩ
● Type S	No	Yes	Yes	No	No
— Input resistance (Type S)			10 MΩ
● Type T	No	Yes	Yes	No	No
— Input resistance (Type T)			10 MΩ
● Type U	No	Yes	Yes	No	No
— Input resistance (Type U)			10 MΩ
● Type TXK/TXK(L) to GOST	No	Yes	Yes	No	No
— Input resistance (Type TXK/TXK(L) to GOST)			10 MΩ
Input ranges (rated values), resistance thermometer
● Cu 10	Yes	No	No	No	No
● Ni 100	Yes	No	No	No	No
● Ni 1000	Yes	No	No	No	No
● LG-Ni 1000	Yes	No	No	No	No
● Ni 120	Yes	No	No	No	No
● Ni 200	Yes	No	No	No	No
● Ni 500	Yes	No	No	No	No
● Pt 100	Yes	No	No	No	No
● Pt 1000	Yes	No	No	No	No
● Pt 200	Yes	No	No	No	No
● Pt 500	Yes	No	No	No	No
Input ranges (rated values), resistors
● 0 to 150 ohms	Yes	No	No	No	No
● 0 to 300 ohms	Yes	No	No	No	No
● 0 to 600 ohms	Yes	No	No	No	No
● 0 to 6000 ohms		No	No	No	No
Thermocouple (TC)
Temperature compensation
— parameterizable		Yes	Yes
— internal temperature compensation		Yes	Yes
— external temperature compensation with Pt100		Yes	Yes
— external temperature compensation with compensations socket		Yes	Yes
— for definable comparison point temperature		Yes	Yes
Characteristic linearization
● parameterizable	Yes	Yes	Yes
— for thermocouples		Type B, E, J, K, L, N, R, S. T, U, C	Type B, E, J, K, L, N, R, S. T, U, C, TXK, XK(L)
— for resistance thermometer	Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10; (standard/climate)		No
Cable length
● shielded, max.	200 m	100 m	200 m	200 m	200 m
Analog value generation for the inputs
Integration and conversion time/resolution per channel
● Resolution with overrange (bit including sign), max.	16 bit; Two’s complement	16 bit; Two’s complement	16 bit; Two’s complement	16 bit; Unipolar: 15/15/15/15 bit; bipolar: 15 bit + sign/15 bit + sign/15 bit + sign/15 bit + sign	16 bit; Unipolar: 15/15/15/15 bit; bipolar: 15 bit + sign/15 bit + sign/15 bit + sign/15 bit + sign
● Integration time, parameterizable	Yes	Yes	Yes	Yes; 10/ 16.67/ 20/ 100 ms	Yes; 23 / 72 / 83 / 95 ms
● Basic conversion time (ms)	up to 4 channels: 10 ms per module, over 5 channels: 190 ms per module, 8 channels: 80 ms	Up to 4 channels: 10 ms per module, 5 channels upwards: 190 ms per module	30 / 50 / 60 / 300 ms		10 ms (4-channel mode); 95/83/72/23 ms (8-channel mode)
● Integration time (ms)			10/ 16.67/ 20/ 100 ms
● Interference voltage suppression for interference frequency f1 in Hz	400 / 60 / 50 Hz	400 / 60 / 50 Hz	10 / 50 / 60 / 400 Hz	400 / 60 / 50 / 10 Hz	400 / 60 / 50 Hz, combinations of 400, 60, 50 Hz
Encoder
Connection of signal encoders
● for voltage measurement			Yes	Yes	Yes
● for current measurement as 2-wire transducer				Yes; with external transmitter; possible with separate supply for transmitter	Yes; with external transmitter, current supply; possible with separate supply for transmitter
● for current measurement as 4-wire transducer				Yes	Yes
● for resistance measurement with two-wire connection	Yes; without resistance correction
● for resistance measurement with three-wire connection	Yes
● for resistance measurement with four-wire connection	Yes
Errors/accuracies
Operational error limit in overall temperature range
● Voltage, relative to input range, (+/-)		±1 K	Operating error at 0 … 60 °C: ±0.12% @ ±25 mV, ±0.08% @ ±50 mV, ±0.6% @ ±80 mV, ±0.05% @ ±250 mV, ±0.05% @ 500 mV, ±0.05% @ ±1 V	0.1 %; At Ucm = 0 V or ±0.7 % at Ucm = 50 V	0.1 %
● Current, relative to input range, (+/-)				0.3 %; At Ucm = 0 V or ±0.9 % at Ucm = 50 V	0.1 %
● Resistance, relative to input range, (+/-)	0.1 %
● Resistance thermometer, relative to input range, (+/-)	±1 K
● Thermocouple, relative to input range, (+/-)		Type T: ±0.18%, Type U: ±0.15%, Type E: ±0.12%, Type J: ±0.12%, Type L: ±0.17%, Type K: ±0.15%, Type N: ±0.17%, Type R: ±0.08%, Type S: ±0.10%, Type B: ±0.13%, Type C: ±0.10%, TXK/XK(L): ±1.00% accuracy in the lower range of the characteristic curve	See manual for details
Basic error limit (operational limit at 25 °C)
● Voltage, relative to input range, (+/-)			See manual for details	0.05 %	0.05 %
● Current, relative to input range, (+/-)				0.05 %	0.05 %
● Resistance, relative to input range, (+/-)	0.05 %
● Resistance thermometer, relative to input range, (+/-)	±0.5 K
● Thermocouple, relative to input range, (+/-)		Type T: ±0.13%, Type U: ±0.08%, Type E: ±0.05%, Type J: ±0.04%, Type L: ±0.06%, Type K: ±0.04%, Type N: ±0.04%, Type R: ±0.03%, Type S: ±0.03%, Type B: ±0.05%, Type C: ±0.02%, TXK/XK(L): ±0.67 % accuracy in the lower range of the characteristic curve	See manual for details
Interrupts/diagnostics/status information
Diagnostics function	Yes; Parameterizable	Yes; Parameterizable	Yes; Parameterizable	Yes; Parameterizable	Yes; Parameterizable
Alarms
● Diagnostic alarm	Yes; Parameterizable per group	Yes; Parameterizable per group	Yes; channel by channel	Yes; Parameterizable	Yes; Parameterizable
● Limit value alarm	Yes; Parameterizable	Yes; Parameterizable	Yes; Parameterizable	Yes; Parameterizable, channels 0 and 2	Yes; Parameterizable all channels (end of cycle interrupt is also supported across modules)
● Hardware interrupt	Yes; Parameterizable, channels 0 to 7	Yes; Parameterizable, channels 0 to 7	Yes; Parameterizable		Yes; Parameterizable, channels 0 to 7 (on exceeding limit value), at end of cycle
Diagnoses
● Diagnostic information readable	Yes	Yes	Yes	Yes	Yes
Diagnostics indication LED
● Group error SF (red)	Yes	Yes	Yes	Yes	Yes
Potential separation
Potential separation analog inputs
● between the channels	Yes	Yes	Yes	No	Yes
● between the channels, in groups of	2	2	1	2	2
● between the channels and backplane bus	Yes	Yes	Yes	Yes	Yes
● between the channels and the power supply of the electronics	Yes	Yes	Yes		Yes
Isolation
Isolation tested with	500 V DC	500 V DC	2 500 V DC	500 V DC	500 V AC
connection method / header
required front connector	40-pin	40-pin	40-pin	40-pin	40-pin
Dimensions
Width	40 mm	40 mm	40 mm	40 mm	40 mm
Height	125 mm	125 mm	125 mm	125 mm	125 mm
Depth	120 mm	120 mm	120 mm	117 mm	117 mm
Weights
Weight, approx.	272 g	272 g	272 g	272 g	272 g