ADM440T - Circuit Breaker HAGER - Free user manual and instructions
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| Product Type | Miniature Circuit Breaker (MCB) |
| Model | ADM440T |
| Brand | Hager |
| Number of Poles | 4 |
| Rated Current (In) | 40 A |
| Rated Voltage (Ue) | 400 V AC |
| Rated Frequency | 50/60 Hz |
| Breaking Capacity (Icu) | 6 kA (according to IEC 60898) |
| Tripping Curve | Type C (typical for moderate inrush currents) |
| Mounting Type | DIN rail (35 mm) |
| Dimensions (H x W x D) | Approx. 85 x 72 x 69 mm (4 modules width) |
| Weight | Approx. 0.35 kg |
| Power Supply | Directly connected to mains (no external supply needed) |
| Main Functions | Overload protection, short-circuit protection, switching function |
| Maintenance | None required; periodic visual inspection recommended |
| Cleaning | Wipe with dry cloth; do not use solvents |
| Safety Features | IP20 rated, touch-proof terminals, arc extinction chambers |
| Spare Parts & Repairability | Not repairable; replace entire unit if faulty |
| Compliance | IEC 60898, EN 60898, CE marked |
Frequently Asked Questions - ADM440T HAGER
What is the rated current of the Hager ADM440T?
The rated current (In) is 40 A.
What does the '4' in ADM440T indicate?
The '4' indicates that it is a 4-pole circuit breaker.
Can the ADM440T be used in single-phase circuits?
Yes, but only the appropriate poles should be used. It is designed for three-phase systems with 4 poles (3 phases + neutral).
What is the breaking capacity of this circuit breaker?
The breaking capacity (Icu) is 6 kA according to IEC 60898.
What does the tripping curve 'C' mean?
Curve C trips at 5 to 10 times the rated current, suitable for moderate inrush currents like lighting and small motors.
How do I install the ADM440T on a DIN rail?
Snap the breaker onto the DIN rail by engaging the top clip first, then push the bottom until it clicks. Ensure correct orientation.
What should I do if the breaker trips frequently?
Check for overload or short-circuit. Reduce connected load. If tripping persists, replace the breaker.
Is the ADM440T suitable for residential use?
Yes, it is commonly used in residential and commercial distribution boards for protection of circuits up to 40 A.
Can I use this breaker outdoors?
It has an IP20 rating, meaning it is not weatherproof. Use only indoors or in a weatherproof enclosure.
What are the dimensions of the ADM440T?
Approximate dimensions: 85 x 72 x 69 mm (H x W x D). It occupies 4 modular spaces (4 x 18 mm).
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USER MANUAL ADM440T HAGER
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Product information
Brand : HAGER
Model : ADM440T
Category : Circuit Breaker