# Bender A-isometer 365-421 IRDH - Insulation Monitoring Device

Ensure the safety of your electrical systems with the **Bender A-isometer 365-421 IRDH** Insulation Monitoring Device. This device provides precise and reliable insulation monitoring for industrial applications, offering peace of mind and preventing costly downtime.

The **Bender A-isometer 365-421 IRDH** features response values from 10 to 990 kΩ and handles rated voltages up to 690V AC or 500V DC. Equipped with relay contacts rated at 250V AC 5A, it seamlessly integrates into existing control systems, providing essential protection.

**Key Features:**

-   Precise insulation resistance monitoring
-   Wide voltage range compatibility
-   Seamless integration with relay contacts
-   Durable and reliable performance
-   Compact and lightweight design

**Specifications:**

-   Response Value: 10 to 990 kΩ
-   Rated Voltage: Up to 690V AC or 500V DC
-   Relay Contact Rating: 250V AC 5A
-   Weight: 920 grams

Trust **Bender** for reliable industrial automation solutions. The **A-isometer 365-421 IRDH** is designed for optimal performance and longevity. Order yours today and ensure the safety of your electrical installations.

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 > Insulation Monitors
- **Tags:** A-isometer 365-421 IRDH, automation, bender, electrical safety, insulation monitoring, voltage monitoring

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Used | 999.00 USD | In stock |

## Images

- Bender A-isometer 365-421 IRDH - Insulation Monitoring Device-Ram Automations

---

> Source: [Ram Automations](https://ramautomations.com/products/bender-a-isometer-365-421-irdh)
> Updated: 2026-10-04