H 4135A HIMA Safety Relay Module | HIQuad PLC Relay Unit

Description

The HIMA H 4135A is a high-integrity safety relay module developed for HIQuad programmable safety systems. Designed to ensure reliable switching and protection of safety-critical outputs, it maintains stable control performance in industrial environments requiring redundancy and precision.

With four independent relay channels, configurable contact types, and integrated diagnostics, the H 4135A provides flexible and fail-safe operation. It supports both Normally Open (NO) and Normally Closed (NC) configurations, offering engineers the versatility required for safety PLC and process automation setups.

Technical Specifications

• Manufacturer: HIMA

• Model: H 4135A

• Product Type: Safety Relay Module

• Relay Outputs: 4 independent channels

• Contact Configuration: NO or NC per channel (configurable)

• Switching Capacity:

• Resistive load: 250 V AC / 30 V DC, up to 5 A

• Inductive load (L/R = 7 ms): 250 V AC / 30 V DC, up to 3 A

• Input Voltage: 24 V DC ±10%

• Output Voltage: 24 V DC (maximum)

• Current Consumption:

• Idle (quiescent): up to 60 mA

• Active per channel: up to 100 mA

• Isolation:

• Channel-to-channel: 500 V AC RMS

• Channel-to-ground: 500 V AC RMS

• Operating Temperature: –20°C to +60°C

• Storage Temperature: –40°C to +85°C

• Humidity: 5% to 95% RH, non-condensing

• Dimensions (W x H x D): 12.5 mm × 100 mm × 100 mm

• Weight: 150 g

Features

• Quad-Channel Design: Four isolated relay channels with independent monitoring.

• Flexible Contacts: Supports both NO and NC outputs per channel.

• Enhanced Safety Monitoring: Integrated diagnostics for status and fault detection.

• High Load Switching: Handles both resistive and inductive loads up to 250 V AC.

• Compact Construction: Slim 12.5 mm module fits easily into dense PLC racks.

• Reliable Performance: Designed for SIL 3-level safety environments.

• Low Power Consumption: Energy-efficient design supports continuous operation.

Applications

• HIQuad PLC systems for safety-critical automation

• Process control and emergency shutdown (ESD) systems

• Industrial plants requiring redundant relay switching

• Power generation, chemical, and petrochemical control networks

• Machinery control systems complying with high safety integrity levels

Installation & Usage Notes

• Install in HIQuad racks with a stable 24 V DC power supply.

• Configure each relay channel through HIMA engineering tools.

• Verify NO/NC configuration and load type before commissioning.

• Maintain within rated temperature and humidity limits for optimal performance.

FAQ

Q1: How many relay channels are included in the H4135A module?
A1: The module includes four independent, isolated relay channels.

Q2: Can I configure each relay for NO or NC operation?
A2: Yes, each channel can be configured as Normally Open or Normally Closed.

Q3: What is the maximum switching load capacity?
A3: The relay handles up to 250 V AC or 30 V DC, depending on load type.

Q4: Is it compatible with HIMA HIQuad PLC systems?
A4: Yes, it integrates directly with HIQuad programmable safety controllers.