# BENDER Isolation Monitor IR425-D4-2 - AC/DC Control Circuits

The BENDER ISOMETER® **IR425-D4-2 Isolation Monitor** is designed for monitoring insulation resistance in ungrounded AC/DC control circuits (0-300V). It ensures the safe construction of insulated AC/DC supplies, providing reliability in electrical systems.

This **A-ISOMETER® IR425-D4-2** offers accurate insulation monitoring, unaffected by DC-powered components. Ideal for automation and control systems, it features password-protected settings and a lead-sealable transparent cover for added security. Ensure the integrity of your electrical installations with this professional solution.

**Key Features:**

-   Monitors insulation resistance in AC/DC control circuits
-   Unaffected by existing DC-powered components
-   Password-protected settings to prevent unwanted changes
-   Provides reliable fault detection
-   Ensures safe construction of insulated power supplies

**Specifications:**

-   Voltage Range: 0 - 300 V AC/DC
-   Suitable for ungrounded systems
-   Separate power supply for monitoring voltage-free systems

Rely on the **BENDER IR425-D4-2** for dependable insulation monitoring in your industrial automation systems. Invest in quality and protect your electrical installations today.

Also our company name is Ram Automations and also you can contact us on email info@ramautomations.com

## Details

- **Price:** 999.0 USD
- **Vendor:** BENDER
- **Type:** Industrial Automation > Monitoring Devices > Isolation Monitors
- **Tags:** AC/DC control circuits, automation, BENDER, control systems, insulation resistance, IR425-D4-2, isolation monitor

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 999.00 USD | In stock |

## Images

- BENDER Isolation Monitor IR425-D4-2 - AC/DC Control Circuits-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/bender-isolation-monitor-ir425-d4-2)
> Updated: 2026-09-19