ABE7H16S43 Schneider Electric Modicon Discrete I/O Sub-base

Schneider Electric ABE7H16S43 Modicon Passive Discrete I/O Sub-base

Technical Specifications

• Manufacturer: Schneider Electric
• Model: ABE7H16S43
• Series: Modicon ABE7
• Product Type: Passive discrete I/O sub-base
• Sub-base Type: Input sub-base
• Number of Channels: 16
• Terminals per Channel: 2
• Rated Supply Voltage: 19...30 V DC
• Supply Current: ≤ 1.8 A
• Current per Channel: 0.125 A
• Maximum Current per Output Common: 1.8 A
• Voltage Drop per Channel: ≤ 0.1 V
• Voltage Drop on Power Supply Fuse: 0.3 V
• Fuse Type: 1 A internal fuse, 5 x 20 mm (PLC end), fast blow; 0.125 A per channel fuse, 5 x 20 mm, fast blow (output circuit)
• Insulation Voltage: 2000 V
• Installation Category: II (IEC 60664-1)
• Connector Type: HE-10, 20 pins
• Fixing Mode: Clips on 35 mm DIN rail or screws on solid plate with fixing kit
• Tightening Torque: 0.6 N.m (5.3 lbf.in) with flat Ø 3.5 mm screwdriver
• Wire Sizes: 0.09 to 2.5 mm² (AWG 28 to 12) depending on wire type and configuration
• Dimensions (WxHxD): 206 x 77 x 58 mm
• Weight: 0.64 kg

LED Status Indicators

• Green LED per channel: Channel status indication
• Red LED per channel: Blown fuse indication
• Green LED (power ON): Supply voltage present

Channel Features

• Each channel includes one switch disconnector for individual control
• Polarity distribution operates at 24 V for consistent input signaling
• Short-circuit protection uses internal 1 A fuse at PLC end plus 0.125 A fuse per channel
• Low voltage drop per channel maximizes system efficiency

Frequently Asked Questions

What is the difference between the main fuse and the per-channel fuses on the ABE7H16S43?

• The ABE7H16S43 uses a dual-stage protection scheme. The internal 1 A fuse at the PLC end protects the entire module from overcurrent. Each of the 16 channels also has a dedicated 0.125 A fast blow fuse to protect individual input circuits. This allows a single faulty channel to blow its own fuse without affecting the rest of the module.

What wire sizes can I use with the screw terminals?

• The terminals accept a wide range of wire sizes depending on configuration. For single wires use 0.09 to 2.5 mm² for flexible or solid types. For dual wires the range narrows to 0.09 to 0.75 mm² for flexible with ferrule and 0.2 to 2.5 mm² for solid. Always strip wires properly and tighten to 0.6 N.m torque.

Can I mount the ABE7H16S43 without a DIN rail?

• Yes the ABE7H16S43 offers two mounting options. You can clip it onto a standard 35 mm symmetrical DIN rail using the integrated clips. Alternatively you can screw it directly onto a solid mounting plate using the provided fixing kit. Both methods provide secure installation.

What do the red LEDs on each channel indicate?

• A red LED per channel signals a blown fuse condition specifically for that input circuit. When you see a red LED illuminated check and replace the corresponding 0.125 A 5 x 20 mm fast blow fuse for that channel. The module also has a separate green power LED to confirm supply voltage is present.

What is the maximum current I can draw from this sub-base?

• The total supply current for the ABE7H16S43 must not exceed 1.8 A. Each individual channel supports up to 0.125 A. The maximum current per output common is also 1.8 A so ensure your overall load stays within these limits to prevent fuse blows or damage.

Does the ABE7H16S43 work with 24 V DC systems only?

• Yes the ABE7H16S43 accepts DC supply voltage only within the range of 19 to 30 V. It specifically uses 24 V polarity distribution for consistent input signaling. Do not connect AC voltage to this unit as it may cause damage.

What is the purpose of the switch disconnector per channel?

• Each channel includes one switch disconnector that allows you to manually isolate that input circuit. This feature helps during troubleshooting or maintenance without needing to disconnect wiring. Simply operate the switch to break the circuit for that specific channel.

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