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Siemens 6ES7142-1BD40-0XB0 — Digital Output Modules

Siemens 6ES7142-1BD40-0XB0 EM142 4DO 24V/2A, IP66/67

MPN6ES7142-1BD40-0XB0

Siemens SIMATIC DP EM142 expansion module for ET 200X, 4 digital outputs 24V/2A, diagnostics per channel, IP66/67, 6ES7142-1BD40-0XB0.

$105.16Ref. price · indicative, final on quote

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Siemens 6ES7142-1BD40-0XB0 datasheet (PDF)

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6ES7142-1BD40-0XB0 — Outputs
Parameter	Value
Digital outputs	4

6ES7142-1BD40-0XB0 — Electrical
Parameter	Value
Output current, resistive load, max.	100 Hz
Output current at signal "1" (rated)	2 A; At 24 V DC
Output current, max. per circuit / per module	2.4 A
Output voltage at signal "1" (min.)	2L+ (-0,8 V)
Residual current at signal "0", max.	0.5 mA
Current consumption from backplane bus (5 V DC), max.	40 mA
Power dissipation (typ.)	2.5 W
Inductive shutdown voltage clamp	typ. (2L+) -53 V
Load resistance, upper limit	4 kΩ
Load resistance, lower limit	12 Ω
Isolation between channels	No
Isolation test voltage	500 V DC

6ES7142-1BD40-0XB0 — Protection & Diagnostics
Parameter	Value
Short-circuit protection	Yes; Electronic
Diagnostics function	Yes; Parameterizable
Diagnostic alarm	Yes
Short-circuit response threshold (typ.)	3.5 A
Short-circuit detection	Yes; channel by channel
Wire-break detection	Yes; channel by channel
Redundant load control	Yes; only outputs of the same group
Output can drive a digital input	Yes; at minimum current of 6 mA

6ES7142-1BD40-0XB0 — Performance
Parameter	Value
Switching frequency, lamp load, max.	1 Hz

6ES7142-1BD40-0XB0 — Mechanical & Connection
Parameter	Value
Cable length, unshielded, max.	30 m
Width	87 mm; Width module 60 mm
Height	110 mm
Depth	55 mm
Weight (approx.)	250 g

Product details

The Siemens 6ES7142-1BD40-0XB0 is an EM142 expansion module for the ET 200X distributed I/O family, IP66/67 rated. It carries 4 digital outputs at 24 V DC, each rated for 2 A continuous, with electronic short-circuit and wire-break detection per channel. Diagnostics are parameterizable, so you can enable alarms for each output individually. A green status LED per channel gives a quick visual check at the panel.

Output performance and derating

Inductive shutdown is clamped to typ. (2L+) -53 V, which keeps flyback spikes from damaging the output stages. The module also isolates between different circuits at 75 V DC / 60 V AC, and between the backplane bus and all other circuits.