Allen Bradley 1734-IB8S Digital Input Module

The AB 1734-IB8S is an 8-channel digital safety input module from the POINT Guard I/O series, engineered for monitoring safety devices such as emergency stop buttons, safety gates, light curtains, and other input sources requiring functional safety compliance. Each channel accepts 24V DC sink input signals and supports safety ratings up to SIL 3 and PL e.

Compact and DIN-rail mountable, the 1734-IB8S is compatible with TB, TOP, and TOP3 terminal bases and is ideal for distributed safety I/O systems using GuardLogix or other CIP Safety-enabled controllers.

Technical Specifications

Model: 1734IB8S
Series: POINT Guard I/O
Type: Digital Safety Input Module
Number of Inputs: 8
Input Type: Sinking (24V DC)
Input Voltage Range: 24V DC (nominal)
Terminal Base Compatibility: TB, TOP, TOP3
Plug Connection Type: Removable terminal block
Mounting Method: DIN rail
Safety Function: Safety input monitoring up to SIL 3 / PL e

Electrical Specifications

Supply Voltage: 24V DC
Input Current: ~4 mA per channel
Input Delay (typical): <10 ms
Backplane Current (5V): ~100 mA
Power Dissipation: ~2.5 W
Isolation Voltage: 50V (field-side to system-side)
Short-Circuit Protection: Not applicable (input module)
Channel Diagnostics: Yes – per channel and module-level diagnostics via controller

Network & Interface Specifications

Communication Interface: Via POINT Guard I/O safety backplane
Compatible Safety Controllers: GuardLogix, Compact GuardLogix
Protocol Support (via adapter):
✅ CIP Safety over EtherNet/IP (with 1734-AENTR or equivalent safety adapter)
❌ DeviceNet
❌ Modbus
❌ TCP/IP

Safety Ratings:

• SIL 3 (IEC 61508)
• PL e / Cat. 4 (ISO 13849-1)
  Configuration Software: Studio 5000 Logix Designer

Mechanical Specifications

Enclosure Type: Open-style module – install in protected cabinet
Width: 12 mm
Height: 56 mm
Depth: 75.5 mm
Mounting Orientation: Vertical
Weight: Approx. 65 g
Front Installation: Yes
Module Locking: Mechanical latch to terminal base

Environmental Specifications

Operating Temperature: 0…55 °C
Storage Temperature: –40…85 °C
Humidity: 5% to 95% non-condensing
Shock Rating: 30 g
Vibration Resistance: 2 g @ 10–500 Hz
Pollution Degree: 2
Altitude Limit: Up to 2000 m
IP Rating: IP20
Application Suitability: Indoor use within safety-rated control panels

Compliance & Certifications

Certifications: UL, c-UL, CE, TÜV, RoHS
Standards Met: EN ISO 13849-1, IEC 61508, EN 62061
Safety Category: SIL 3 / PL e / Cat. 4
EMC Compliance: EN 61000-6-2 / 6-4
Use with: POINT Guard I/O adapters and GuardLogix controllers

Key Features & Benefits

✅ 8 x 24V DC Safety Inputs – Connect safety devices like light curtains, e-stops, and safety switches

✅ Certified to SIL 3 / PL e – Meets the highest functional safety requirements in industrial applications

✅ Compact 12mm Width – Allows for high-density installation in space-limited safety panels

✅ Modular I/O Architecture – Seamless expansion via POINT Guard I/O system

✅ Integrated Diagnostics – Channel-specific monitoring and real-time fault detection

📦 Order the Allen Bradley 1734-IB8S from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable Allen Bradley 1734-IB8S prices. This reliable, SIL 3-rated digital safety input module is ideal for distributed Guard I/O systems—available now with expert support and fast UK delivery.

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Drive Outlet Megastore – your trusted source for Allen Bradley POINT Guard I/O and certified industrial safety solutions.