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Technical specifications
8.1 SCALANCE M874-2
Digital input
Digital output
Permitted ambient conditions
Ambient temperature
Relative humidity
Design, dimensions and weight
Module format
Degree of protection
Weight
Dimensions (W x H x D)
Installation options
Mounting position
76
M874-2
Quantity
1
Design
Terminal block, 2-pin
Properties
Rated voltage 24 VDC Safety Extra Low Voltage
(SELV)
For state "1": 10 to 30 VDC
For state "0": -30 to 3 VDC
Maximum input current 8 mA
Cables should be routed in pairs
Maximum cable length < 30 m
Inputs isolated from electronics.
Quantity
1
Design
Terminal block, 2-pin
Properties
Rated voltage 24 VDC Safety Extra Low Voltage
(SELV)
Relay, internally not current limited
Maximum current carrying capacity 1 A
Cables should be routed in pairs
Maximum cable length < 30 m
Output isolated from electronics
During operation
Vertical mounting position:
•
Horizontal mounting position:
•
During storage
-40 ℃ to +70 ℃
During transporta‐
-40 ℃ to +70 ℃
tion
During operation
≤ 95% at 25 °C, no condensation
Compact module S7-1500
IP20
290 g
34.8 x 150.9 x 134.7 mm
•
•
•
•
•
•
•
See Permitted ambient conditions
Operating Instructions, 02/2023, C79000-G8976-C331-12
-20 °C ... +60 °C
-20 °C ... +50 °C
Wall mounting
Mounting on a DIN rail
Installation on S7-300 mounting rail
Installation on S7-1500 mounting rail
Mounting on a pedestal
Vertical (ventilation openings at the top and
bottom)
Horizontal (ventilation openings to the right
and left)
SCALANCE M874, M876
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