ABB A1N 125 TMF 80-800 4p F F · technical datadatasheet · International · EnglishABB product-page export · 2026-09-30 · exact reference
ABBBudget
ABB A1N 125 TMF 80-800 4p F F · 80 A · 4P molded-case breaker
Exact reference · A1N 125 TMF 80-800 4p F F
A four-pole molded-case breaker with fixed thermal overload protection at 80 A and fixed magnetic short-circuit threshold at 800 A. The 125 A frame is not the selected trip rating. No residual-current function is built in.
- Protection function
- Thermal-magnetic overload and short-circuit protection
- Poles
- 4
- Neutral protection
- 4 protected poles · neutral at 100%
No integrated residual-current protection. Use separately selected earth-leakage protection where required. L1, L2, L3 and N are jointly switched. The FORMULA catalogue specifies neutral protection at 100% of the phase rating: 80 A thermal and 800 A magnetic for this TMF selection. Protective earth is never switched.
Pricing confirmed by quote
Quote confirms reference and commercial terms; installation selection remains the installer’s responsibility.
Availability confirmed in your written quote
1
01 · Product role
What this product does in the system.
A four-pole molded-case breaker with fixed thermal overload protection at 80 A and fixed magnetic short-circuit threshold at 800 A. The 125 A frame is not the selected trip rating. No residual-current function is built in.
Relevant applications
- Selected commercial distribution with L1, L2, L3 and N.
Why ReneWave may shortlist it
- A four-pole molded-case breaker with fixed thermal overload protection at 80 A and fixed magnetic short-circuit threshold at 800 A. The 125 A frame is not the selected trip rating. No residual-current function is built in.
System position
Four-pole commercial distribution: L1, L2, L3 and N.
No integrated residual-current protection. Use separately selected earth-leakage protection where required. L1, L2, L3 and N are jointly switched. The FORMULA catalogue specifies neutral protection at 100% of the phase rating: 80 A thermal and 800 A magnetic for this TMF selection. Protective earth is never switched.
The closed four-pole device supplies L1, L2, L3 and N to commercial distribution. Protective earth bypasses the device and is never switched. Branch devices are separate, not included.
Read the technical explanation
No integrated residual-current protection. Use separately selected earth-leakage protection where required. L1, L2, L3 and N are jointly switched. The FORMULA catalogue specifies neutral protection at 100% of the phase rating: 80 A thermal and 800 A magnetic for this TMF selection. Protective earth is never switched.
02 · Specifications
Ratings, dimensions and practical consequence.
Device identity
- ABB reference
A1N 125 TMF 80-800 4p F F
- ABB article code
1SDA066765R1
- Protection function
Thermal-magnetic overload and short-circuit protection
- Poles
4
- Neutral protection
L1, L2, L3 and N are jointly switched. The FORMULA catalogue specifies neutral protection at 100% of the phase rating: 80 A thermal and 800 A magnetic for this TMF selection. Protective earth is never switched.
- Rated current
80 A
- Rated operational voltage
550 V AC · IEC/EN 60947-2
- Trip unit / frame
80 A trip rating · 125 A frame
- Fixed magnetic threshold
800 A
Breaking capacity by voltage
- Icu · IEC/EN 60947-2
36 kA · 380 / 415 V AC; 25 kA · 440 V AC; 18 kA · 480 V AC; 10 kA · 500 V AC
- Ics · IEC/EN 60947-2
18 kA · 380 V AC; 7.5 kA · 415 V AC; 6.25 kA · 440 V AC; 4.5 kA · 480 V AC; 2.5 kA · 500 V AC
03 · Selection points
Four practical selection points.
Match the device to the circuit, expected load and fault conditions. Request a quote for the exact reference you have selected.
- 01
Pole configuration
L1, L2, L3 and N are jointly switched. The FORMULA catalogue specifies neutral protection at 100% of the phase rating: 80 A thermal and 800 A magnetic for this TMF selection. Protective earth is never switched.
- 02
Current and trip function
A four-pole molded-case breaker with fixed thermal overload protection at 80 A and fixed magnetic short-circuit threshold at 800 A. The 125 A frame is not the selected trip rating. No residual-current function is built in.
- 03
Voltage and fault capacity
Compare the prospective fault current with the capacity at the actual supply voltage and standard. Icn, Icu and Ics are different ratings, not interchangeable labels. The 240 V breaking-capacity row is withheld because ABB source revisions disagree. Do not substitute it for the verified 380 / 415 V ratings.
- 04
Mounting and connections
Fixed molded-case installation with front terminals. Use the ABB A1 mounting and connection instructions; this is not a modular DIN-rail breaker. TMF thermal and magnetic thresholds are fixed, not user-adjustable.
04 · Documentation
Keep the exact reference traceable.
Published documents for this exact reference support selection and handover.
ABB FORMULA · technical cataloguedatasheet · International · English1SDC210032D0204 · product family
ABB FORMULA A1 · installation instructionsinstallation · International · Multilingual1SDH000717R0001 · product family
ABB FORMULA · declaration of conformitycertificate · International · English9AKK106713A5519 · product family
05 · Complete the system
Accessories and adjacent equipment, in one request.
Separate equipment is selected for the installation; no automatic companions are added to your request.
No automatic companion selection. Separate protection and accessories are chosen for the installation.
1
