Carling A-Series AM2 5A Double-Pole Sealed Toggle Circuit Breaker
SKU CB-AM2-05AMP-34-501-I
Carling A-Series AM2 5A double-pole hydraulic-magnetic supplementary protector with a sealed metal toggle.
- Carling part number
- AM2-B0-34-450-501-I
- Current
- 5A
- Poles
- 2
- Protection
- Hydraulic-magnetic supplementary protector
- Trip response
- Medium delay (code 34)
- Terminal
- 10-32 Screw (Bus Type)
- Series
- A-Series
- Circuit
- Series trip (current)
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About this product
Carling A-Series AM2 5A double-pole hydraulic-magnetic supplementary protector with a sealed metal toggle. MPN AM2-B0-34-450-501-I. UL 1077 and UL 1500 Recognized (ignition protected); CSA Accepted.
AM2-B0-34-450-501-I is a Carling A-Series 5A double-pole hydraulic-magnetic component supplementary protector with a sealed metal toggle. Its complete ordering identity, rather than the family limits alone, should be used for selection.
Product overview
- Series and poles: A-Series AM2; 2 poles
- Protection: Series-trip hydraulic-magnetic supplementary protector
- Catalog rated current: 5A
- Trip response: Medium delay (code 34)
- Frequency: DC and 50/60 Hz
Verified specifications
- Trip-free: Trips on overload even when the actuator is held ON
- Trip indication: Actuator moves positively to OFF on electrical trip
- Insulation resistance: Minimum 100 megohms at 500 VDC
- Dielectric strength: 1,500 VAC, 60 Hz, 1 minute between electrically isolated terminals
- Mechanical endurance: 10,000 ON-OFF operations at 6 per minute with rated current and voltage
Installation details
- Terminal configuration: Code 5: 10-32 screw (bus type)
- Actuator: One per unit, on the right pole when viewed from the front
- Legend plate: None
- Mounting: Standard hex nut; no barriers
- Auxiliary/alarm switch: None
Environmental durability
- Operating temperature: -40 C to +85 C
- Shock: 100 G, 6 ms sawtooth; MIL-STD-202 Method 213, Condition I
- Vibration: 0.060 in excursion, 10-55 Hz; 10 G, 55-500 Hz; Method 204C, Condition A
- Salt spray: Method 101, Condition A; 5% NaCl, 96 hours
- Thermal shock: Method 107D, Condition A; five cycles, -55 C to +85 C
- Moisture resistance: Method 106D; ten 24-hour cycles at +25 C to +65 C, 80-98% RH; 56 days at +85 C, 85% RH
Agency recognition and selection
- Configuration: UL 1077 and UL 1500 Recognized (ignition protected); CSA Accepted
- Selection: This is a recognized supplementary protector, not an assertion of UL 489 branch-circuit listing. Verify the complete part number, system voltage, trip curve, conductor size, terminals and mounting against the manufacturer documentation.
Part-number breakdown
- Reference manual
- Carling A-Series datasheet, Sealed Toggle UL Recognized Ordering Scheme (p. 14)
- Complete manufacturer part number
- AM2-B0-34-450-501-I
- 1. Series
- A — A-Series
- 2. Actuator
- M — Sealed toggle, one per unit; right pole on a two-pole unit
- 3. Poles
- 2 — 2 poles
- 4. Circuit
- B — Series trip (current)
- 5. Auxiliary/alarm switch
- 0 — Without auxiliary switch
- 6. Frequency and delay
- 34 — DC / 50–60 Hz medium
- 7. Current rating code
- 450 — 5 A
- 8. Terminal
- 5 — 10-32 screw (bus type)
- 9. Legend plate
- 0 — No legend plate
- 10. Mounting / barriers
- 1 — Standard hex nut; no barriers
- 11. Agency approval
- I — UL 1077 and UL 1500 (ignition protected) Recognized; CSA Accepted
Product details
- Carling part number
- AM2-B0-34-450-501-I
- Current
- 5A
- Poles
- 2
- Protection
- Hydraulic-magnetic supplementary protector
- Trip response
- Medium delay (code 34)
- Terminal
- 10-32 Screw (Bus Type)
- Series
- A-Series
- Circuit
- Series trip (current)
- Voltage
- Not specified
- Amperage
- 5A
- Mounting
- Standard hex nut; no barriers
- Frequency
- DC and 50/60 Hz
- Trip Free
- Yes - trips on overload with actuator held ON
- Trip Delay
- Medium delay (code 34)
- Legend Plate
- None
- Product Type
- Component supplementary protector
- Actuator Type
- Sealed metal toggle
- Housing Color
- Black
- Terminal Type
- 10-32 Screw (Bus Type)
- Thermal Shock
- Method 107D, Condition A; five cycles, -55 C to +85 C
- Actuator Style
- Toggle
- Ul Recognition
- QVNU2, File E75596
- Agency Approval
- UL 1077 and UL 1500 Recognized (ignition protected); CSA Accepted
- Protection Type
- Hydraulic-magnetic
- Trip Indication
- Positive OFF-position indication on electrical trip
- Shock Resistance
- 100 G, 6 ms sawtooth; MIL-STD-202 Method 213, Condition I
- Actuator Location
- One per unit, on the right pole when viewed from the front
- Csa Certification
- Class 3215 30, File 047848 0 000; CSA C22.2 No. 235
- Family Max Current
- 50 A
- Family Max Voltage
- 277 VAC / 80 VDC - configuration dependent, not an exact-model rating
- Current Rating Code
- 450
- Dielectric Strength
- 1,500 VAC, 60 Hz, 1 minute between electrically isolated terminals
- Moisture Resistance
- Method 106D; ten 24-hour cycles at +25 C to +65 C, 80-98% RH; 56 days at +85 C, 85% RH
- Mechanical Endurance
- 10,000 ON-OFF operations at 6 per minute with rated current and voltage
- Vibration Resistance
- 0.060 in excursion, 10-55 Hz; 10 G, 55-500 Hz; Method 204C, Condition A
- Insulation Resistance
- Minimum 100 megohms at 500 VDC
- Operating Temperature
- -40 C to +85 C
- Salt Spray Resistance
- Method 101, Condition A; 5% NaCl, 96 hours
- Auxiliary Alarm Switch
- None
- Terminal Configuration
- Code 5: 10-32 screw (bus type)
- Manufacturer Part Number
- AM2-B0-34-450-501-I
- Approximate Weight Per Pole
- 65 g / 2.32 oz
Shipping & returns
- Contact us to confirm availability and shipping time.
- 30-day returns on unused stocked items. Exclusions apply. See policy
- Custom and quoted items are non-returnable once production begins.
Warranty
Backed by the original manufacturer’s warranty plus our workmanship guarantee on assembled harnesses. Contact us with your invoice and we’ll coordinate any covered repair or replacement.
Read the full warranty termsInstallation guidance
These notes are a starting point. They cover the common considerations for a marine install — they don't replace a project review against your specific boat, helm, and circuit list.
- Disconnect the battery and verify zero voltage at the working point before cutting or splicing.
- Match wire gauge to the breaker and the run length, not just to the load.
- Use marine-rated, tinned terminals and seal every crimp against moisture and vibration.
- Route conductors clear of heat sources and protect them where they pass through bulkheads.
Technical support
Need help choosing the right part?
Our marine electrical team can review your setup and recommend compatible products. Send a photo, a sketch, or your circuit list and we'll come back with a parts list that fits the boat.
Certifications & training
- ABYC-aware build practices
- OEM-grade marine wire & terminals
Additional capabilities are based on hands-on experience building marine wiring systems rather than third-party certification.
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Why buy from Common Ground Marine
- 20+ years building marine wiring harnesses, panels, and shore-power systems.
- Engineers — not a phone tree — review every custom build before parts are cut.
- OEM-grade components: tinned copper, sealed connectors, marine-rated jackets.